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-rw-r--r--release/src/router/busybox/coreutils/stty.c2080
1 files changed, 1103 insertions, 977 deletions
diff --git a/release/src/router/busybox/coreutils/stty.c b/release/src/router/busybox/coreutils/stty.c
index bd3a3691..3605e3c2 100644
--- a/release/src/router/busybox/coreutils/stty.c
+++ b/release/src/router/busybox/coreutils/stty.c
@@ -2,15 +2,8 @@
/* stty -- change and print terminal line settings
Copyright (C) 1990-1999 Free Software Foundation, Inc.
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2, or (at your option)
- any later version.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-
+ Licensed under the GPL v2 or later, see the file LICENSE in this tarball.
+*/
/* Usage: stty [-ag] [-F device] [setting...]
Options:
@@ -28,44 +21,16 @@
*/
-//#define TEST
-
-#include <stddef.h>
-#include <termios.h>
-#include <sys/ioctl.h>
-
-#include <sys/param.h>
-#include <unistd.h>
-
-#ifndef STDIN_FILENO
-# define STDIN_FILENO 0
-#endif
-
-#ifndef STDOUT_FILENO
-# define STDOUT_FILENO 1
-#endif
-
-#include <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include <ctype.h>
-#include <errno.h>
-#include <limits.h>
-#include <memory.h>
-#include <fcntl.h>
-#include "busybox.h"
-
-#define STREQ(a, b) (strcmp ((a), (b)) == 0)
-
+#include "libbb.h"
#ifndef _POSIX_VDISABLE
# define _POSIX_VDISABLE ((unsigned char) 0)
#endif
#define Control(c) ((c) & 0x1f)
-/* Canonical values for control characters. */
+/* Canonical values for control characters */
#ifndef CINTR
-# define CINTR Control ('c')
+# define CINTR Control('c')
#endif
#ifndef CQUIT
# define CQUIT 28
@@ -74,27 +39,27 @@
# define CERASE 127
#endif
#ifndef CKILL
-# define CKILL Control ('u')
+# define CKILL Control('u')
#endif
#ifndef CEOF
-# define CEOF Control ('d')
+# define CEOF Control('d')
#endif
#ifndef CEOL
# define CEOL _POSIX_VDISABLE
#endif
#ifndef CSTART
-# define CSTART Control ('q')
+# define CSTART Control('q')
#endif
#ifndef CSTOP
-# define CSTOP Control ('s')
+# define CSTOP Control('s')
#endif
#ifndef CSUSP
-# define CSUSP Control ('z')
+# define CSUSP Control('z')
#endif
#if defined(VEOL2) && !defined(CEOL2)
# define CEOL2 _POSIX_VDISABLE
#endif
-/* ISC renamed swtch to susp for termios, but we'll accept either name. */
+/* ISC renamed swtch to susp for termios, but we'll accept either name */
#if defined(VSUSP) && !defined(VSWTCH)
# define VSWTCH VSUSP
# define CSWTCH CSUSP
@@ -103,30 +68,30 @@
# define CSWTCH _POSIX_VDISABLE
#endif
-/* SunOS 5.3 loses (^Z doesn't work) if `swtch' is the same as `susp'.
- So the default is to disable `swtch.' */
-#if defined (__sparc__) && defined (__svr4__)
+/* SunOS 5.3 loses (^Z doesn't work) if 'swtch' is the same as 'susp'.
+ So the default is to disable 'swtch.' */
+#if defined(__sparc__) && defined(__svr4__)
# undef CSWTCH
# define CSWTCH _POSIX_VDISABLE
#endif
-#if defined(VWERSE) && !defined (VWERASE) /* AIX-3.2.5 */
+#if defined(VWERSE) && !defined(VWERASE) /* AIX-3.2.5 */
# define VWERASE VWERSE
#endif
-#if defined(VDSUSP) && !defined (CDSUSP)
-# define CDSUSP Control ('y')
+#if defined(VDSUSP) && !defined(CDSUSP)
+# define CDSUSP Control('y')
#endif
#if !defined(VREPRINT) && defined(VRPRNT) /* Irix 4.0.5 */
# define VREPRINT VRPRNT
#endif
#if defined(VREPRINT) && !defined(CRPRNT)
-# define CRPRNT Control ('r')
+# define CRPRNT Control('r')
#endif
#if defined(VWERASE) && !defined(CWERASE)
-# define CWERASE Control ('w')
+# define CWERASE Control('w')
#endif
#if defined(VLNEXT) && !defined(CLNEXT)
-# define CLNEXT Control ('v')
+# define CLNEXT Control('v')
#endif
#if defined(VDISCARD) && !defined(VFLUSHO)
# define VFLUSHO VDISCARD
@@ -144,816 +109,639 @@
# define ECHOKE CRTKIL
#endif
#if defined(VFLUSHO) && !defined(CFLUSHO)
-# define CFLUSHO Control ('o')
+# define CFLUSHO Control('o')
#endif
#if defined(VSTATUS) && !defined(CSTATUS)
-# define CSTATUS Control ('t')
+# define CSTATUS Control('t')
#endif
-/* Which speeds to set. */
+/* Which speeds to set */
enum speed_setting {
input_speed, output_speed, both_speeds
};
-/* Which member(s) of `struct termios' a mode uses. */
-enum mode_type {
+/* Which member(s) of 'struct termios' a mode uses */
+enum {
/* Do NOT change the order or values, as mode_type_flag()
- * depends on them. */
+ * depends on them */
control, input, output, local, combination
};
+/* Flags for 'struct mode_info' */
+#define SANE_SET 1 /* Set in 'sane' mode */
+#define SANE_UNSET 2 /* Unset in 'sane' mode */
+#define REV 4 /* Can be turned off by prepending '-' */
+#define OMIT 8 /* Don't display value */
+
-static const char evenp [] = "evenp";
-static const char raw [] = "raw";
-static const char stty_min [] = "min";
-static const char stty_time [] = "time";
-static const char stty_swtch[] = "swtch";
-static const char stty_eol [] = "eol";
-static const char stty_eof [] = "eof";
-static const char parity [] = "parity";
-static const char stty_oddp [] = "oddp";
-static const char stty_nl [] = "nl";
-static const char stty_ek [] = "ek";
-static const char stty_sane [] = "sane";
-static const char cbreak [] = "cbreak";
-static const char stty_pass8[] = "pass8";
-static const char litout [] = "litout";
-static const char cooked [] = "cooked";
-static const char decctlq [] = "decctlq";
-static const char stty_tabs [] = "tabs";
-static const char stty_lcase[] = "lcase";
-static const char stty_LCASE[] = "LCASE";
-static const char stty_crt [] = "crt";
-static const char stty_dec [] = "dec";
-
-
-/* Flags for `struct mode_info'. */
-#define SANE_SET 1 /* Set in `sane' mode. */
-#define SANE_UNSET 2 /* Unset in `sane' mode. */
-#define REV 4 /* Can be turned off by prepending `-'. */
-#define OMIT 8 /* Don't display value. */
-
-/* Each mode. */
+/* Each mode.
+ * This structure should be kept as small as humanly possible.
+ */
struct mode_info {
- const char *name; /* Name given on command line. */
- /* enum mode_type type; */
- char type; /* Which structure element to change. */
- char flags; /* Setting and display options. */
- unsigned short mask; /* Other bits to turn off for this mode. */
- unsigned long bits; /* Bits to set for this mode. */
+ const uint8_t type; /* Which structure element to change */
+ const uint8_t flags; /* Setting and display options */
+ /* only these values are ever used, so... */
+#if (CSIZE | NLDLY | CRDLY | TABDLY | BSDLY | VTDLY | FFDLY) < 0x100
+ const uint8_t mask;
+#elif (CSIZE | NLDLY | CRDLY | TABDLY | BSDLY | VTDLY | FFDLY) < 0x10000
+ const uint16_t mask;
+#else
+ const tcflag_t mask; /* Other bits to turn off for this mode */
+#endif
+ /* was using short here, but ppc32 was unhappy */
+ const tcflag_t bits; /* Bits to set for this mode */
+};
+
+enum {
+ /* Must match mode_name[] and mode_info[] order! */
+ IDX_evenp = 0,
+ IDX_parity,
+ IDX_oddp,
+ IDX_nl,
+ IDX_ek,
+ IDX_sane,
+ IDX_cooked,
+ IDX_raw,
+ IDX_pass8,
+ IDX_litout,
+ IDX_cbreak,
+ IDX_crt,
+ IDX_dec,
+#ifdef IXANY
+ IDX_decctlq,
+#endif
+#if defined(TABDLY) || defined(OXTABS)
+ IDX_tabs,
+#endif
+#if defined(XCASE) && defined(IUCLC) && defined(OLCUC)
+ IDX_lcase,
+ IDX_LCASE,
+#endif
};
-#define MI_ENTRY(N,T,F,B,M) { N, T, F, M, B }
-
-static const struct mode_info mode_info[] = {
- MI_ENTRY("parenb", control, REV, PARENB, 0 ),
- MI_ENTRY("parodd", control, REV, PARODD, 0 ),
- MI_ENTRY("cs5", control, 0, CS5, CSIZE),
- MI_ENTRY("cs6", control, 0, CS6, CSIZE),
- MI_ENTRY("cs7", control, 0, CS7, CSIZE),
- MI_ENTRY("cs8", control, 0, CS8, CSIZE),
- MI_ENTRY("hupcl", control, REV, HUPCL, 0 ),
- MI_ENTRY("hup", control, REV | OMIT, HUPCL, 0 ),
- MI_ENTRY("cstopb", control, REV, CSTOPB, 0 ),
- MI_ENTRY("cread", control, SANE_SET | REV, CREAD, 0 ),
- MI_ENTRY("clocal", control, REV, CLOCAL, 0 ),
+#define MI_ENTRY(N,T,F,B,M) N "\0"
+
+/* Mode names given on command line */
+static const char mode_name[] =
+ MI_ENTRY("evenp", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("parity", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("oddp", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("nl", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("ek", combination, OMIT, 0, 0 )
+ MI_ENTRY("sane", combination, OMIT, 0, 0 )
+ MI_ENTRY("cooked", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("raw", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("pass8", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("litout", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("cbreak", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("crt", combination, OMIT, 0, 0 )
+ MI_ENTRY("dec", combination, OMIT, 0, 0 )
+#ifdef IXANY
+ MI_ENTRY("decctlq", combination, REV | OMIT, 0, 0 )
+#endif
+#if defined(TABDLY) || defined(OXTABS)
+ MI_ENTRY("tabs", combination, REV | OMIT, 0, 0 )
+#endif
+#if defined(XCASE) && defined(IUCLC) && defined(OLCUC)
+ MI_ENTRY("lcase", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("LCASE", combination, REV | OMIT, 0, 0 )
+#endif
+ MI_ENTRY("parenb", control, REV, PARENB, 0 )
+ MI_ENTRY("parodd", control, REV, PARODD, 0 )
+ MI_ENTRY("cs5", control, 0, CS5, CSIZE)
+ MI_ENTRY("cs6", control, 0, CS6, CSIZE)
+ MI_ENTRY("cs7", control, 0, CS7, CSIZE)
+ MI_ENTRY("cs8", control, 0, CS8, CSIZE)
+ MI_ENTRY("hupcl", control, REV, HUPCL, 0 )
+ MI_ENTRY("hup", control, REV | OMIT, HUPCL, 0 )
+ MI_ENTRY("cstopb", control, REV, CSTOPB, 0 )
+ MI_ENTRY("cread", control, SANE_SET | REV, CREAD, 0 )
+ MI_ENTRY("clocal", control, REV, CLOCAL, 0 )
#ifdef CRTSCTS
- MI_ENTRY("crtscts", control, REV, CRTSCTS, 0 ),
-#endif
- MI_ENTRY("ignbrk", input, SANE_UNSET | REV, IGNBRK, 0 ),
- MI_ENTRY("brkint", input, SANE_SET | REV, BRKINT, 0 ),
- MI_ENTRY("ignpar", input, REV, IGNPAR, 0 ),
- MI_ENTRY("parmrk", input, REV, PARMRK, 0 ),
- MI_ENTRY("inpck", input, REV, INPCK, 0 ),
- MI_ENTRY("istrip", input, REV, ISTRIP, 0 ),
- MI_ENTRY("inlcr", input, SANE_UNSET | REV, INLCR, 0 ),
- MI_ENTRY("igncr", input, SANE_UNSET | REV, IGNCR, 0 ),
- MI_ENTRY("icrnl", input, SANE_SET | REV, ICRNL, 0 ),
- MI_ENTRY("ixon", input, REV, IXON, 0 ),
- MI_ENTRY("ixoff", input, SANE_UNSET | REV, IXOFF, 0 ),
- MI_ENTRY("tandem", input, REV | OMIT, IXOFF, 0 ),
+ MI_ENTRY("crtscts", control, REV, CRTSCTS, 0 )
+#endif
+ MI_ENTRY("ignbrk", input, SANE_UNSET | REV, IGNBRK, 0 )
+ MI_ENTRY("brkint", input, SANE_SET | REV, BRKINT, 0 )
+ MI_ENTRY("ignpar", input, REV, IGNPAR, 0 )
+ MI_ENTRY("parmrk", input, REV, PARMRK, 0 )
+ MI_ENTRY("inpck", input, REV, INPCK, 0 )
+ MI_ENTRY("istrip", input, REV, ISTRIP, 0 )
+ MI_ENTRY("inlcr", input, SANE_UNSET | REV, INLCR, 0 )
+ MI_ENTRY("igncr", input, SANE_UNSET | REV, IGNCR, 0 )
+ MI_ENTRY("icrnl", input, SANE_SET | REV, ICRNL, 0 )
+ MI_ENTRY("ixon", input, REV, IXON, 0 )
+ MI_ENTRY("ixoff", input, SANE_UNSET | REV, IXOFF, 0 )
+ MI_ENTRY("tandem", input, REV | OMIT, IXOFF, 0 )
#ifdef IUCLC
- MI_ENTRY("iuclc", input, SANE_UNSET | REV, IUCLC, 0 ),
+ MI_ENTRY("iuclc", input, SANE_UNSET | REV, IUCLC, 0 )
#endif
#ifdef IXANY
- MI_ENTRY("ixany", input, SANE_UNSET | REV, IXANY, 0 ),
+ MI_ENTRY("ixany", input, SANE_UNSET | REV, IXANY, 0 )
#endif
#ifdef IMAXBEL
- MI_ENTRY("imaxbel", input, SANE_SET | REV, IMAXBEL, 0 ),
+ MI_ENTRY("imaxbel", input, SANE_SET | REV, IMAXBEL, 0 )
#endif
- MI_ENTRY("opost", output, SANE_SET | REV, OPOST, 0 ),
+ MI_ENTRY("opost", output, SANE_SET | REV, OPOST, 0 )
#ifdef OLCUC
- MI_ENTRY("olcuc", output, SANE_UNSET | REV, OLCUC, 0 ),
+ MI_ENTRY("olcuc", output, SANE_UNSET | REV, OLCUC, 0 )
#endif
#ifdef OCRNL
- MI_ENTRY("ocrnl", output, SANE_UNSET | REV, OCRNL, 0 ),
+ MI_ENTRY("ocrnl", output, SANE_UNSET | REV, OCRNL, 0 )
#endif
#ifdef ONLCR
- MI_ENTRY("onlcr", output, SANE_SET | REV, ONLCR, 0 ),
+ MI_ENTRY("onlcr", output, SANE_SET | REV, ONLCR, 0 )
#endif
#ifdef ONOCR
- MI_ENTRY("onocr", output, SANE_UNSET | REV, ONOCR, 0 ),
+ MI_ENTRY("onocr", output, SANE_UNSET | REV, ONOCR, 0 )
#endif
#ifdef ONLRET
- MI_ENTRY("onlret", output, SANE_UNSET | REV, ONLRET, 0 ),
+ MI_ENTRY("onlret", output, SANE_UNSET | REV, ONLRET, 0 )
#endif
#ifdef OFILL
- MI_ENTRY("ofill", output, SANE_UNSET | REV, OFILL, 0 ),
+ MI_ENTRY("ofill", output, SANE_UNSET | REV, OFILL, 0 )
#endif
#ifdef OFDEL
- MI_ENTRY("ofdel", output, SANE_UNSET | REV, OFDEL, 0 ),
+ MI_ENTRY("ofdel", output, SANE_UNSET | REV, OFDEL, 0 )
#endif
#ifdef NLDLY
- MI_ENTRY("nl1", output, SANE_UNSET, NL1, NLDLY),
- MI_ENTRY("nl0", output, SANE_SET, NL0, NLDLY),
+ MI_ENTRY("nl1", output, SANE_UNSET, NL1, NLDLY)
+ MI_ENTRY("nl0", output, SANE_SET, NL0, NLDLY)
#endif
#ifdef CRDLY
- MI_ENTRY("cr3", output, SANE_UNSET, CR3, CRDLY),
- MI_ENTRY("cr2", output, SANE_UNSET, CR2, CRDLY),
- MI_ENTRY("cr1", output, SANE_UNSET, CR1, CRDLY),
- MI_ENTRY("cr0", output, SANE_SET, CR0, CRDLY),
+ MI_ENTRY("cr3", output, SANE_UNSET, CR3, CRDLY)
+ MI_ENTRY("cr2", output, SANE_UNSET, CR2, CRDLY)
+ MI_ENTRY("cr1", output, SANE_UNSET, CR1, CRDLY)
+ MI_ENTRY("cr0", output, SANE_SET, CR0, CRDLY)
#endif
#ifdef TABDLY
- MI_ENTRY("tab3", output, SANE_UNSET, TAB3, TABDLY),
- MI_ENTRY("tab2", output, SANE_UNSET, TAB2, TABDLY),
- MI_ENTRY("tab1", output, SANE_UNSET, TAB1, TABDLY),
- MI_ENTRY("tab0", output, SANE_SET, TAB0, TABDLY),
+ MI_ENTRY("tab3", output, SANE_UNSET, TAB3, TABDLY)
+ MI_ENTRY("tab2", output, SANE_UNSET, TAB2, TABDLY)
+ MI_ENTRY("tab1", output, SANE_UNSET, TAB1, TABDLY)
+ MI_ENTRY("tab0", output, SANE_SET, TAB0, TABDLY)
#else
# ifdef OXTABS
- MI_ENTRY("tab3", output, SANE_UNSET, OXTABS, 0 ),
+ MI_ENTRY("tab3", output, SANE_UNSET, OXTABS, 0 )
# endif
#endif
#ifdef BSDLY
- MI_ENTRY("bs1", output, SANE_UNSET, BS1, BSDLY),
- MI_ENTRY("bs0", output, SANE_SET, BS0, BSDLY),
+ MI_ENTRY("bs1", output, SANE_UNSET, BS1, BSDLY)
+ MI_ENTRY("bs0", output, SANE_SET, BS0, BSDLY)
#endif
#ifdef VTDLY
- MI_ENTRY("vt1", output, SANE_UNSET, VT1, VTDLY),
- MI_ENTRY("vt0", output, SANE_SET, VT0, VTDLY),
+ MI_ENTRY("vt1", output, SANE_UNSET, VT1, VTDLY)
+ MI_ENTRY("vt0", output, SANE_SET, VT0, VTDLY)
#endif
#ifdef FFDLY
- MI_ENTRY("ff1", output, SANE_UNSET, FF1, FFDLY),
- MI_ENTRY("ff0", output, SANE_SET, FF0, FFDLY),
+ MI_ENTRY("ff1", output, SANE_UNSET, FF1, FFDLY)
+ MI_ENTRY("ff0", output, SANE_SET, FF0, FFDLY)
#endif
- MI_ENTRY("isig", local, SANE_SET | REV, ISIG, 0 ),
- MI_ENTRY("icanon", local, SANE_SET | REV, ICANON, 0 ),
+ MI_ENTRY("isig", local, SANE_SET | REV, ISIG, 0 )
+ MI_ENTRY("icanon", local, SANE_SET | REV, ICANON, 0 )
#ifdef IEXTEN
- MI_ENTRY("iexten", local, SANE_SET | REV, IEXTEN, 0 ),
-#endif
- MI_ENTRY("echo", local, SANE_SET | REV, ECHO, 0 ),
- MI_ENTRY("echoe", local, SANE_SET | REV, ECHOE, 0 ),
- MI_ENTRY("crterase", local, REV | OMIT, ECHOE, 0 ),
- MI_ENTRY("echok", local, SANE_SET | REV, ECHOK, 0 ),
- MI_ENTRY("echonl", local, SANE_UNSET | REV, ECHONL, 0 ),
- MI_ENTRY("noflsh", local, SANE_UNSET | REV, NOFLSH, 0 ),
+ MI_ENTRY("iexten", local, SANE_SET | REV, IEXTEN, 0 )
+#endif
+ MI_ENTRY("echo", local, SANE_SET | REV, ECHO, 0 )
+ MI_ENTRY("echoe", local, SANE_SET | REV, ECHOE, 0 )
+ MI_ENTRY("crterase", local, REV | OMIT, ECHOE, 0 )
+ MI_ENTRY("echok", local, SANE_SET | REV, ECHOK, 0 )
+ MI_ENTRY("echonl", local, SANE_UNSET | REV, ECHONL, 0 )
+ MI_ENTRY("noflsh", local, SANE_UNSET | REV, NOFLSH, 0 )
#ifdef XCASE
- MI_ENTRY("xcase", local, SANE_UNSET | REV, XCASE, 0 ),
+ MI_ENTRY("xcase", local, SANE_UNSET | REV, XCASE, 0 )
#endif
#ifdef TOSTOP
- MI_ENTRY("tostop", local, SANE_UNSET | REV, TOSTOP, 0 ),
+ MI_ENTRY("tostop", local, SANE_UNSET | REV, TOSTOP, 0 )
#endif
#ifdef ECHOPRT
- MI_ENTRY("echoprt", local, SANE_UNSET | REV, ECHOPRT, 0 ),
- MI_ENTRY("prterase", local, REV | OMIT, ECHOPRT, 0 ),
+ MI_ENTRY("echoprt", local, SANE_UNSET | REV, ECHOPRT, 0 )
+ MI_ENTRY("prterase", local, REV | OMIT, ECHOPRT, 0 )
#endif
#ifdef ECHOCTL
- MI_ENTRY("echoctl", local, SANE_SET | REV, ECHOCTL, 0 ),
- MI_ENTRY("ctlecho", local, REV | OMIT, ECHOCTL, 0 ),
+ MI_ENTRY("echoctl", local, SANE_SET | REV, ECHOCTL, 0 )
+ MI_ENTRY("ctlecho", local, REV | OMIT, ECHOCTL, 0 )
#endif
#ifdef ECHOKE
- MI_ENTRY("echoke", local, SANE_SET | REV, ECHOKE, 0 ),
- MI_ENTRY("crtkill", local, REV | OMIT, ECHOKE, 0 ),
-#endif
- MI_ENTRY(evenp, combination, REV | OMIT, 0, 0 ),
- MI_ENTRY(parity, combination, REV | OMIT, 0, 0 ),
- MI_ENTRY(stty_oddp, combination, REV | OMIT, 0, 0 ),
- MI_ENTRY(stty_nl, combination, REV | OMIT, 0, 0 ),
- MI_ENTRY(stty_ek, combination, OMIT, 0, 0 ),
- MI_ENTRY(stty_sane, combination, OMIT, 0, 0 ),
- MI_ENTRY(cooked, combination, REV | OMIT, 0, 0 ),
- MI_ENTRY(raw, combination, REV | OMIT, 0, 0 ),
- MI_ENTRY(stty_pass8, combination, REV | OMIT, 0, 0 ),
- MI_ENTRY(litout, combination, REV | OMIT, 0, 0 ),
- MI_ENTRY(cbreak, combination, REV | OMIT, 0, 0 ),
+ MI_ENTRY("echoke", local, SANE_SET | REV, ECHOKE, 0 )
+ MI_ENTRY("crtkill", local, REV | OMIT, ECHOKE, 0 )
+#endif
+ ;
+
+#undef MI_ENTRY
+#define MI_ENTRY(N,T,F,B,M) { T, F, M, B },
+
+static const struct mode_info mode_info[] = {
+ /* This should be verbatim cut-n-paste copy of the above MI_ENTRYs */
+ MI_ENTRY("evenp", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("parity", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("oddp", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("nl", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("ek", combination, OMIT, 0, 0 )
+ MI_ENTRY("sane", combination, OMIT, 0, 0 )
+ MI_ENTRY("cooked", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("raw", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("pass8", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("litout", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("cbreak", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("crt", combination, OMIT, 0, 0 )
+ MI_ENTRY("dec", combination, OMIT, 0, 0 )
#ifdef IXANY
- MI_ENTRY(decctlq, combination, REV | OMIT, 0, 0 ),
+ MI_ENTRY("decctlq", combination, REV | OMIT, 0, 0 )
#endif
-#if defined (TABDLY) || defined (OXTABS)
- MI_ENTRY(stty_tabs, combination, REV | OMIT, 0, 0 ),
+#if defined(TABDLY) || defined(OXTABS)
+ MI_ENTRY("tabs", combination, REV | OMIT, 0, 0 )
#endif
#if defined(XCASE) && defined(IUCLC) && defined(OLCUC)
- MI_ENTRY(stty_lcase, combination, REV | OMIT, 0, 0 ),
- MI_ENTRY(stty_LCASE, combination, REV | OMIT, 0, 0 ),
+ MI_ENTRY("lcase", combination, REV | OMIT, 0, 0 )
+ MI_ENTRY("LCASE", combination, REV | OMIT, 0, 0 )
+#endif
+ MI_ENTRY("parenb", control, REV, PARENB, 0 )
+ MI_ENTRY("parodd", control, REV, PARODD, 0 )
+ MI_ENTRY("cs5", control, 0, CS5, CSIZE)
+ MI_ENTRY("cs6", control, 0, CS6, CSIZE)
+ MI_ENTRY("cs7", control, 0, CS7, CSIZE)
+ MI_ENTRY("cs8", control, 0, CS8, CSIZE)
+ MI_ENTRY("hupcl", control, REV, HUPCL, 0 )
+ MI_ENTRY("hup", control, REV | OMIT, HUPCL, 0 )
+ MI_ENTRY("cstopb", control, REV, CSTOPB, 0 )
+ MI_ENTRY("cread", control, SANE_SET | REV, CREAD, 0 )
+ MI_ENTRY("clocal", control, REV, CLOCAL, 0 )
+#ifdef CRTSCTS
+ MI_ENTRY("crtscts", control, REV, CRTSCTS, 0 )
+#endif
+ MI_ENTRY("ignbrk", input, SANE_UNSET | REV, IGNBRK, 0 )
+ MI_ENTRY("brkint", input, SANE_SET | REV, BRKINT, 0 )
+ MI_ENTRY("ignpar", input, REV, IGNPAR, 0 )
+ MI_ENTRY("parmrk", input, REV, PARMRK, 0 )
+ MI_ENTRY("inpck", input, REV, INPCK, 0 )
+ MI_ENTRY("istrip", input, REV, ISTRIP, 0 )
+ MI_ENTRY("inlcr", input, SANE_UNSET | REV, INLCR, 0 )
+ MI_ENTRY("igncr", input, SANE_UNSET | REV, IGNCR, 0 )
+ MI_ENTRY("icrnl", input, SANE_SET | REV, ICRNL, 0 )
+ MI_ENTRY("ixon", input, REV, IXON, 0 )
+ MI_ENTRY("ixoff", input, SANE_UNSET | REV, IXOFF, 0 )
+ MI_ENTRY("tandem", input, REV | OMIT, IXOFF, 0 )
+#ifdef IUCLC
+ MI_ENTRY("iuclc", input, SANE_UNSET | REV, IUCLC, 0 )
+#endif
+#ifdef IXANY
+ MI_ENTRY("ixany", input, SANE_UNSET | REV, IXANY, 0 )
+#endif
+#ifdef IMAXBEL
+ MI_ENTRY("imaxbel", input, SANE_SET | REV, IMAXBEL, 0 )
+#endif
+ MI_ENTRY("opost", output, SANE_SET | REV, OPOST, 0 )
+#ifdef OLCUC
+ MI_ENTRY("olcuc", output, SANE_UNSET | REV, OLCUC, 0 )
+#endif
+#ifdef OCRNL
+ MI_ENTRY("ocrnl", output, SANE_UNSET | REV, OCRNL, 0 )
+#endif
+#ifdef ONLCR
+ MI_ENTRY("onlcr", output, SANE_SET | REV, ONLCR, 0 )
+#endif
+#ifdef ONOCR
+ MI_ENTRY("onocr", output, SANE_UNSET | REV, ONOCR, 0 )
+#endif
+#ifdef ONLRET
+ MI_ENTRY("onlret", output, SANE_UNSET | REV, ONLRET, 0 )
+#endif
+#ifdef OFILL
+ MI_ENTRY("ofill", output, SANE_UNSET | REV, OFILL, 0 )
+#endif
+#ifdef OFDEL
+ MI_ENTRY("ofdel", output, SANE_UNSET | REV, OFDEL, 0 )
+#endif
+#ifdef NLDLY
+ MI_ENTRY("nl1", output, SANE_UNSET, NL1, NLDLY)
+ MI_ENTRY("nl0", output, SANE_SET, NL0, NLDLY)
+#endif
+#ifdef CRDLY
+ MI_ENTRY("cr3", output, SANE_UNSET, CR3, CRDLY)
+ MI_ENTRY("cr2", output, SANE_UNSET, CR2, CRDLY)
+ MI_ENTRY("cr1", output, SANE_UNSET, CR1, CRDLY)
+ MI_ENTRY("cr0", output, SANE_SET, CR0, CRDLY)
+#endif
+
+#ifdef TABDLY
+ MI_ENTRY("tab3", output, SANE_UNSET, TAB3, TABDLY)
+ MI_ENTRY("tab2", output, SANE_UNSET, TAB2, TABDLY)
+ MI_ENTRY("tab1", output, SANE_UNSET, TAB1, TABDLY)
+ MI_ENTRY("tab0", output, SANE_SET, TAB0, TABDLY)
+#else
+# ifdef OXTABS
+ MI_ENTRY("tab3", output, SANE_UNSET, OXTABS, 0 )
+# endif
+#endif
+
+#ifdef BSDLY
+ MI_ENTRY("bs1", output, SANE_UNSET, BS1, BSDLY)
+ MI_ENTRY("bs0", output, SANE_SET, BS0, BSDLY)
+#endif
+#ifdef VTDLY
+ MI_ENTRY("vt1", output, SANE_UNSET, VT1, VTDLY)
+ MI_ENTRY("vt0", output, SANE_SET, VT0, VTDLY)
+#endif
+#ifdef FFDLY
+ MI_ENTRY("ff1", output, SANE_UNSET, FF1, FFDLY)
+ MI_ENTRY("ff0", output, SANE_SET, FF0, FFDLY)
+#endif
+ MI_ENTRY("isig", local, SANE_SET | REV, ISIG, 0 )
+ MI_ENTRY("icanon", local, SANE_SET | REV, ICANON, 0 )
+#ifdef IEXTEN
+ MI_ENTRY("iexten", local, SANE_SET | REV, IEXTEN, 0 )
+#endif
+ MI_ENTRY("echo", local, SANE_SET | REV, ECHO, 0 )
+ MI_ENTRY("echoe", local, SANE_SET | REV, ECHOE, 0 )
+ MI_ENTRY("crterase", local, REV | OMIT, ECHOE, 0 )
+ MI_ENTRY("echok", local, SANE_SET | REV, ECHOK, 0 )
+ MI_ENTRY("echonl", local, SANE_UNSET | REV, ECHONL, 0 )
+ MI_ENTRY("noflsh", local, SANE_UNSET | REV, NOFLSH, 0 )
+#ifdef XCASE
+ MI_ENTRY("xcase", local, SANE_UNSET | REV, XCASE, 0 )
+#endif
+#ifdef TOSTOP
+ MI_ENTRY("tostop", local, SANE_UNSET | REV, TOSTOP, 0 )
+#endif
+#ifdef ECHOPRT
+ MI_ENTRY("echoprt", local, SANE_UNSET | REV, ECHOPRT, 0 )
+ MI_ENTRY("prterase", local, REV | OMIT, ECHOPRT, 0 )
+#endif
+#ifdef ECHOCTL
+ MI_ENTRY("echoctl", local, SANE_SET | REV, ECHOCTL, 0 )
+ MI_ENTRY("ctlecho", local, REV | OMIT, ECHOCTL, 0 )
+#endif
+#ifdef ECHOKE
+ MI_ENTRY("echoke", local, SANE_SET | REV, ECHOKE, 0 )
+ MI_ENTRY("crtkill", local, REV | OMIT, ECHOKE, 0 )
#endif
- MI_ENTRY(stty_crt, combination, OMIT, 0, 0 ),
- MI_ENTRY(stty_dec, combination, OMIT, 0, 0 ),
};
-static const int NUM_mode_info =
+enum {
+ NUM_mode_info = ARRAY_SIZE(mode_info)
+};
- (sizeof(mode_info) / sizeof(struct mode_info));
-/* Control character settings. */
+/* Control characters */
struct control_info {
- const char *name; /* Name given on command line. */
- unsigned char saneval; /* Value to set for `stty sane'. */
- unsigned char offset; /* Offset in c_cc. */
+ const uint8_t saneval; /* Value to set for 'stty sane' */
+ const uint8_t offset; /* Offset in c_cc */
};
-/* Control characters. */
-
-static const struct control_info control_info[] = {
- {"intr", CINTR, VINTR},
- {"quit", CQUIT, VQUIT},
- {"erase", CERASE, VERASE},
- {"kill", CKILL, VKILL},
- {stty_eof, CEOF, VEOF},
- {stty_eol, CEOL, VEOL},
+enum {
+ /* Must match control_name[] and control_info[] order! */
+ CIDX_intr = 0,
+ CIDX_quit,
+ CIDX_erase,
+ CIDX_kill,
+ CIDX_eof,
+ CIDX_eol,
#ifdef VEOL2
- {"eol2", CEOL2, VEOL2},
+ CIDX_eol2,
#endif
#ifdef VSWTCH
- {stty_swtch, CSWTCH, VSWTCH},
+ CIDX_swtch,
#endif
- {"start", CSTART, VSTART},
- {"stop", CSTOP, VSTOP},
- {"susp", CSUSP, VSUSP},
+ CIDX_start,
+ CIDX_stop,
+ CIDX_susp,
#ifdef VDSUSP
- {"dsusp", CDSUSP, VDSUSP},
+ CIDX_dsusp,
#endif
#ifdef VREPRINT
- {"rprnt", CRPRNT, VREPRINT},
+ CIDX_rprnt,
#endif
#ifdef VWERASE
- {"werase", CWERASE, VWERASE},
+ CIDX_werase,
#endif
#ifdef VLNEXT
- {"lnext", CLNEXT, VLNEXT},
+ CIDX_lnext,
#endif
#ifdef VFLUSHO
- {"flush", CFLUSHO, VFLUSHO},
+ CIDX_flush,
#endif
#ifdef VSTATUS
- {"status", CSTATUS, VSTATUS},
+ CIDX_status,
#endif
- /* These must be last because of the display routines. */
- {stty_min, 1, VMIN},
- {stty_time, 0, VTIME},
+ CIDX_min,
+ CIDX_time,
};
-static const int NUM_control_info =
- (sizeof(control_info) / sizeof(struct control_info));
-
-
-static const char * visible(unsigned int ch);
-static int recover_mode(char *arg, struct termios *mode);
-static int screen_columns(void);
-static int set_mode(const struct mode_info *info,
- int reversed, struct termios *mode);
-static speed_t string_to_baud(const char *arg);
-static tcflag_t* mode_type_flag(enum mode_type type, struct termios *mode);
-static void display_all(struct termios *mode, int fd);
-static void display_changed(struct termios *mode, int fd);
-static void display_recoverable(struct termios *mode, int fd);
-static void display_speed(struct termios *mode, int fancy);
-static void display_window_size(int fancy, int fd);
-static void sane_mode(struct termios *mode);
-static void set_control_char(const struct control_info *info,
- const char *arg, struct termios *mode);
-static void set_speed(enum speed_setting type,
- const char *arg, struct termios *mode);
-static void set_window_size(int rows, int cols, int fd);
-
-static const char *device_name;
-
-static __attribute__ ((noreturn)) void perror_on_device(const char *fmt)
-{
- bb_perror_msg_and_die(fmt, device_name);
-}
-
-
-/* The width of the screen, for output wrapping. */
-static int max_col;
-
-/* Current position, to know when to wrap. */
-static int current_col;
-
-/* Print format string MESSAGE and optional args.
- Wrap to next line first if it won't fit.
- Print a space first unless MESSAGE will start a new line. */
-
-static void wrapf(const char *message, ...)
-{
- va_list args;
- char buf[1024]; /* Plenty long for our needs. */
- int buflen;
-
- va_start(args, message);
- vsprintf(buf, message, args);
- va_end(args);
- buflen = strlen(buf);
- if (current_col + (current_col > 0) + buflen >= max_col) {
- putchar('\n');
- current_col = 0;
- }
- if (current_col > 0) {
- putchar(' ');
- current_col++;
- }
- fputs(buf, stdout);
- current_col += buflen;
-}
-
-static const struct suffix_mult stty_suffixes[] = {
- {"b", 512 },
- {"k", 1024},
- {"B", 1024},
- {NULL, 0 }
-};
-
-#ifndef TEST
-extern int stty_main(int argc, char **argv)
-#else
-extern int main(int argc, char **argv)
-#endif
-{
- struct termios mode;
- void (*output_func)(struct termios *, int);
- int optc;
- int require_set_attr;
- int speed_was_set;
- int verbose_output;
- int recoverable_output;
- int k;
- int noargs = 1;
- char * file_name = NULL;
- int fd;
-
-
- output_func = display_changed;
- verbose_output = 0;
- recoverable_output = 0;
-
- /* Don't print error messages for unrecognized options. */
- opterr = 0;
-
- while ((optc = getopt(argc, argv, "agF:")) != -1) {
- switch (optc) {
- case 'a':
- verbose_output = 1;
- output_func = display_all;
- break;
-
- case 'g':
- recoverable_output = 1;
- output_func = display_recoverable;
- break;
-
- case 'F':
- if (file_name)
- bb_error_msg_and_die("only one device may be specified");
- file_name = optarg;
- break;
-
- default: /* unrecognized option */
- noargs = 0;
- break;
- }
-
- if (noargs == 0)
- break;
- }
-
- if (optind < argc)
- noargs = 0;
-
- /* Specifying both -a and -g gets an error. */
- if (verbose_output & recoverable_output)
- bb_error_msg_and_die ("verbose and stty-readable output styles are mutually exclusive");
-
- /* Specifying any other arguments with -a or -g gets an error. */
- if (~noargs & (verbose_output | recoverable_output))
- bb_error_msg_and_die ("modes may not be set when specifying an output style");
-
- /* FIXME: it'd be better not to open the file until we've verified
- that all arguments are valid. Otherwise, we could end up doing
- only some of the requested operations and then failing, probably
- leaving things in an undesirable state. */
-
- if (file_name) {
- int fdflags;
-
- device_name = file_name;
- fd = bb_xopen(device_name, O_RDONLY | O_NONBLOCK);
- if ((fdflags = fcntl(fd, F_GETFL)) == -1
- || fcntl(fd, F_SETFL, fdflags & ~O_NONBLOCK) < 0)
- perror_on_device("%s: couldn't reset non-blocking mode");
- } else {
- fd = 0;
- device_name = bb_msg_standard_input;
- }
-
- /* Initialize to all zeroes so there is no risk memcmp will report a
- spurious difference in an uninitialized portion of the structure. */
- memset(&mode, 0, sizeof(mode));
- if (tcgetattr(fd, &mode))
- perror_on_device("%s");
-
- if (verbose_output | recoverable_output | noargs) {
- max_col = screen_columns();
- current_col = 0;
- output_func(&mode, fd);
- return EXIT_SUCCESS;
- }
-
- speed_was_set = 0;
- require_set_attr = 0;
- k = 0;
- while (++k < argc) {
- int match_found = 0;
- int reversed = 0;
- int i;
-
- if (argv[k][0] == '-') {
- char *find_dev_opt;
-
- ++argv[k];
-
- /* Handle "-a", "-ag", "-aF/dev/foo", "-aF /dev/foo", etc.
- Find the options that have been parsed. This is really
- gross, but it's needed because stty SETTINGS look like options to
- getopt(), so we need to work around things in a really horrible
- way. If any new options are ever added to stty, the short option
- MUST NOT be a letter which is the first letter of one of the
- possible stty settings.
- */
- find_dev_opt = strchr(argv[k], 'F'); /* find -*F* */
- if(find_dev_opt) {
- if(find_dev_opt[1]==0) /* -*F /dev/foo */
- k++; /* skip /dev/foo */
- continue; /* else -*F/dev/foo - no skip */
- }
- if(argv[k][0]=='a' || argv[k][0]=='g')
- continue;
- /* Is not options - is reverse params */
- reversed = 1;
- }
- for (i = 0; i < NUM_mode_info; ++i)
- if (STREQ(argv[k], mode_info[i].name)) {
- match_found = set_mode(&mode_info[i], reversed, &mode);
- require_set_attr = 1;
- break;
- }
-
- if (match_found == 0 && reversed)
- bb_error_msg_and_die("invalid argument `%s'", --argv[k]);
-
- if (match_found == 0)
- for (i = 0; i < NUM_control_info; ++i)
- if (STREQ(argv[k], control_info[i].name)) {
- if (k == argc - 1)
- bb_error_msg_and_die("missing argument to `%s'", argv[k]);
- match_found = 1;
- ++k;
- set_control_char(&control_info[i], argv[k], &mode);
- require_set_attr = 1;
- break;
- }
-
- if (match_found == 0) {
- if (STREQ(argv[k], "ispeed")) {
- if (k == argc - 1)
- bb_error_msg_and_die("missing argument to `%s'", argv[k]);
- ++k;
- set_speed(input_speed, argv[k], &mode);
- speed_was_set = 1;
- require_set_attr = 1;
- } else if (STREQ(argv[k], "ospeed")) {
- if (k == argc - 1)
- bb_error_msg_and_die("missing argument to `%s'", argv[k]);
- ++k;
- set_speed(output_speed, argv[k], &mode);
- speed_was_set = 1;
- require_set_attr = 1;
- }
-#ifdef TIOCGWINSZ
- else if (STREQ(argv[k], "rows")) {
- if (k == argc - 1)
- bb_error_msg_and_die("missing argument to `%s'", argv[k]);
- ++k;
- set_window_size((int) bb_xparse_number(argv[k], stty_suffixes),
- -1, fd);
- } else if (STREQ(argv[k], "cols") || STREQ(argv[k], "columns")) {
- if (k == argc - 1)
- bb_error_msg_and_die("missing argument to `%s'", argv[k]);
- ++k;
- set_window_size(-1,
- (int) bb_xparse_number(argv[k], stty_suffixes),
- fd);
- } else if (STREQ(argv[k], "size")) {
- max_col = screen_columns();
- current_col = 0;
- display_window_size(0, fd);
- }
-#endif
-#ifdef HAVE_C_LINE
- else if (STREQ(argv[k], "line")) {
- if (k == argc - 1)
- bb_error_msg_and_die("missing argument to `%s'", argv[k]);
- ++k;
- mode.c_line = bb_xparse_number(argv[k], stty_suffixes);
- require_set_attr = 1;
- }
-#endif
- else if (STREQ(argv[k], "speed")) {
- max_col = screen_columns();
- display_speed(&mode, 0);
- } else if (recover_mode(argv[k], &mode) == 1)
- require_set_attr = 1;
- else if (string_to_baud(argv[k]) != (speed_t) - 1) {
- set_speed(both_speeds, argv[k], &mode);
- speed_was_set = 1;
- require_set_attr = 1;
- } else
- bb_error_msg_and_die("invalid argument `%s'", argv[k]);
- }
- }
+#define CI_ENTRY(n,s,o) n "\0"
- if (require_set_attr) {
- struct termios new_mode;
-
- if (tcsetattr(fd, TCSADRAIN, &mode))
- perror_on_device("%s");
-
- /* POSIX (according to Zlotnick's book) tcsetattr returns zero if
- it performs *any* of the requested operations. This means it
- can report `success' when it has actually failed to perform
- some proper subset of the requested operations. To detect
- this partial failure, get the current terminal attributes and
- compare them to the requested ones. */
-
- /* Initialize to all zeroes so there is no risk memcmp will report a
- spurious difference in an uninitialized portion of the structure. */
- memset(&new_mode, 0, sizeof(new_mode));
- if (tcgetattr(fd, &new_mode))
- perror_on_device("%s");
-
- /* Normally, one shouldn't use memcmp to compare structures that
- may have `holes' containing uninitialized data, but we have been
- careful to initialize the storage of these two variables to all
- zeroes. One might think it more efficient simply to compare the
- modified fields, but that would require enumerating those fields --
- and not all systems have the same fields in this structure. */
-
- if (memcmp(&mode, &new_mode, sizeof(mode)) != 0) {
-#ifdef CIBAUD
- /* SunOS 4.1.3 (at least) has the problem that after this sequence,
- tcgetattr (&m1); tcsetattr (&m1); tcgetattr (&m2);
- sometimes (m1 != m2). The only difference is in the four bits
- of the c_cflag field corresponding to the baud rate. To save
- Sun users a little confusion, don't report an error if this
- happens. But suppress the error only if we haven't tried to
- set the baud rate explicitly -- otherwise we'd never give an
- error for a true failure to set the baud rate. */
-
- new_mode.c_cflag &= (~CIBAUD);
- if (speed_was_set || memcmp(&mode, &new_mode, sizeof(mode)) != 0)
+/* Name given on command line */
+static const char control_name[] =
+ CI_ENTRY("intr", CINTR, VINTR )
+ CI_ENTRY("quit", CQUIT, VQUIT )
+ CI_ENTRY("erase", CERASE, VERASE )
+ CI_ENTRY("kill", CKILL, VKILL )
+ CI_ENTRY("eof", CEOF, VEOF )
+ CI_ENTRY("eol", CEOL, VEOL )
+#ifdef VEOL2
+ CI_ENTRY("eol2", CEOL2, VEOL2 )
#endif
- perror_on_device ("%s: unable to perform all requested operations");
- }
- }
-
- return EXIT_SUCCESS;
-}
-
-/* Return 0 if not applied because not reversible; otherwise return 1. */
-
-static int
-set_mode(const struct mode_info *info, int reversed, struct termios *mode)
-{
- tcflag_t *bitsp;
-
- if (reversed && (info->flags & REV) == 0)
- return 0;
-
- bitsp = mode_type_flag(info->type, mode);
-
- if (bitsp == NULL) {
- /* Combination mode. */
- if (info->name == evenp || info->name == parity) {
- if (reversed)
- mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
- else
- mode->c_cflag =
- (mode->c_cflag & ~PARODD & ~CSIZE) | PARENB | CS7;
- } else if (info->name == stty_oddp) {
- if (reversed)
- mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
- else
- mode->c_cflag =
- (mode->c_cflag & ~CSIZE) | CS7 | PARODD | PARENB;
- } else if (info->name == stty_nl) {
- if (reversed) {
- mode->c_iflag = (mode->c_iflag | ICRNL) & ~INLCR & ~IGNCR;
- mode->c_oflag = (mode->c_oflag
-#ifdef ONLCR
- | ONLCR
+#ifdef VSWTCH
+ CI_ENTRY("swtch", CSWTCH, VSWTCH )
#endif
- )
-#ifdef OCRNL
- & ~OCRNL
+ CI_ENTRY("start", CSTART, VSTART )
+ CI_ENTRY("stop", CSTOP, VSTOP )
+ CI_ENTRY("susp", CSUSP, VSUSP )
+#ifdef VDSUSP
+ CI_ENTRY("dsusp", CDSUSP, VDSUSP )
#endif
-#ifdef ONLRET
- & ~ONLRET
+#ifdef VREPRINT
+ CI_ENTRY("rprnt", CRPRNT, VREPRINT)
#endif
- ;
- } else {
- mode->c_iflag = mode->c_iflag & ~ICRNL;
-#ifdef ONLCR
- mode->c_oflag = mode->c_oflag & ~ONLCR;
+#ifdef VWERASE
+ CI_ENTRY("werase", CWERASE, VWERASE )
#endif
- }
- } else if (info->name == stty_ek) {
- mode->c_cc[VERASE] = CERASE;
- mode->c_cc[VKILL] = CKILL;
- } else if (info->name == stty_sane)
- sane_mode(mode);
- else if (info->name == cbreak) {
- if (reversed)
- mode->c_lflag |= ICANON;
- else
- mode->c_lflag &= ~ICANON;
- } else if (info->name == stty_pass8) {
- if (reversed) {
- mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARENB;
- mode->c_iflag |= ISTRIP;
- } else {
- mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
- mode->c_iflag &= ~ISTRIP;
- }
- } else if (info->name == litout) {
- if (reversed) {
- mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARENB;
- mode->c_iflag |= ISTRIP;
- mode->c_oflag |= OPOST;
- } else {
- mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
- mode->c_iflag &= ~ISTRIP;
- mode->c_oflag &= ~OPOST;
- }
- } else if (info->name == raw || info->name == cooked) {
- if ((info->name[0] == 'r' && reversed)
- || (info->name[0] == 'c' && !reversed)) {
- /* Cooked mode. */
- mode->c_iflag |= BRKINT | IGNPAR | ISTRIP | ICRNL | IXON;
- mode->c_oflag |= OPOST;
- mode->c_lflag |= ISIG | ICANON;
-#if VMIN == VEOF
- mode->c_cc[VEOF] = CEOF;
+#ifdef VLNEXT
+ CI_ENTRY("lnext", CLNEXT, VLNEXT )
#endif
-#if VTIME == VEOL
- mode->c_cc[VEOL] = CEOL;
+#ifdef VFLUSHO
+ CI_ENTRY("flush", CFLUSHO, VFLUSHO )
#endif
- } else {
- /* Raw mode. */
- mode->c_iflag = 0;
- mode->c_oflag &= ~OPOST;
- mode->c_lflag &= ~(ISIG | ICANON
-#ifdef XCASE
- | XCASE
+#ifdef VSTATUS
+ CI_ENTRY("status", CSTATUS, VSTATUS )
+#endif
+ /* These must be last because of the display routines */
+ CI_ENTRY("min", 1, VMIN )
+ CI_ENTRY("time", 0, VTIME )
+ ;
+
+#undef CI_ENTRY
+#define CI_ENTRY(n,s,o) { s, o },
+
+static const struct control_info control_info[] = {
+ /* This should be verbatim cut-n-paste copy of the above CI_ENTRYs */
+ CI_ENTRY("intr", CINTR, VINTR )
+ CI_ENTRY("quit", CQUIT, VQUIT )
+ CI_ENTRY("erase", CERASE, VERASE )
+ CI_ENTRY("kill", CKILL, VKILL )
+ CI_ENTRY("eof", CEOF, VEOF )
+ CI_ENTRY("eol", CEOL, VEOL )
+#ifdef VEOL2
+ CI_ENTRY("eol2", CEOL2, VEOL2 )
#endif
- );
- mode->c_cc[VMIN] = 1;
- mode->c_cc[VTIME] = 0;
- }
- }
-#ifdef IXANY
- else if (info->name == decctlq) {
- if (reversed)
- mode->c_iflag |= IXANY;
- else
- mode->c_iflag &= ~IXANY;
- }
+#ifdef VSWTCH
+ CI_ENTRY("swtch", CSWTCH, VSWTCH )
#endif
-#ifdef TABDLY
- else if (info->name == stty_tabs) {
- if (reversed)
- mode->c_oflag = (mode->c_oflag & ~TABDLY) | TAB3;
- else
- mode->c_oflag = (mode->c_oflag & ~TABDLY) | TAB0;
- }
-#else
-# ifdef OXTABS
- else if (info->name == stty_tabs) {
- if (reversed)
- mode->c_oflag = mode->c_oflag | OXTABS;
- else
- mode->c_oflag = mode->c_oflag & ~OXTABS;
- }
-# endif
+ CI_ENTRY("start", CSTART, VSTART )
+ CI_ENTRY("stop", CSTOP, VSTOP )
+ CI_ENTRY("susp", CSUSP, VSUSP )
+#ifdef VDSUSP
+ CI_ENTRY("dsusp", CDSUSP, VDSUSP )
#endif
-#if defined(XCASE) && defined(IUCLC) && defined(OLCUC)
- else if (info->name == stty_lcase || info->name == stty_LCASE) {
- if (reversed) {
- mode->c_lflag &= ~XCASE;
- mode->c_iflag &= ~IUCLC;
- mode->c_oflag &= ~OLCUC;
- } else {
- mode->c_lflag |= XCASE;
- mode->c_iflag |= IUCLC;
- mode->c_oflag |= OLCUC;
- }
- }
+#ifdef VREPRINT
+ CI_ENTRY("rprnt", CRPRNT, VREPRINT)
#endif
- else if (info->name == stty_crt)
- mode->c_lflag |= ECHOE
-#ifdef ECHOCTL
- | ECHOCTL
+#ifdef VWERASE
+ CI_ENTRY("werase", CWERASE, VWERASE )
#endif
-#ifdef ECHOKE
- | ECHOKE
-#endif
- ;
- else if (info->name == stty_dec) {
- mode->c_cc[VINTR] = 3; /* ^C */
- mode->c_cc[VERASE] = 127; /* DEL */
- mode->c_cc[VKILL] = 21; /* ^U */
- mode->c_lflag |= ECHOE
-#ifdef ECHOCTL
- | ECHOCTL
+#ifdef VLNEXT
+ CI_ENTRY("lnext", CLNEXT, VLNEXT )
#endif
-#ifdef ECHOKE
- | ECHOKE
+#ifdef VFLUSHO
+ CI_ENTRY("flush", CFLUSHO, VFLUSHO )
#endif
- ;
-#ifdef IXANY
- mode->c_iflag &= ~IXANY;
+#ifdef VSTATUS
+ CI_ENTRY("status", CSTATUS, VSTATUS )
#endif
- }
- } else if (reversed)
- *bitsp = *bitsp & ~((unsigned long)info->mask) & ~info->bits;
- else
- *bitsp = (*bitsp & ~((unsigned long)info->mask)) | info->bits;
+ /* These must be last because of the display routines */
+ CI_ENTRY("min", 1, VMIN )
+ CI_ENTRY("time", 0, VTIME )
+};
- return 1;
+enum {
+ NUM_control_info = ARRAY_SIZE(control_info)
+};
+
+
+struct globals {
+ const char *device_name; // = bb_msg_standard_input;
+ /* The width of the screen, for output wrapping */
+ unsigned max_col; // = 80;
+ /* Current position, to know when to wrap */
+ unsigned current_col;
+ char buf[10];
+};
+#define G (*(struct globals*)&bb_common_bufsiz1)
+#define INIT_G() do { \
+ G.device_name = bb_msg_standard_input; \
+ G.max_col = 80; \
+} while (0)
+
+
+/* Return a string that is the printable representation of character CH */
+/* Adapted from 'cat' by Torbjorn Granlund */
+static const char *visible(unsigned ch)
+{
+ char *bpout = G.buf;
+
+ if (ch == _POSIX_VDISABLE)
+ return "<undef>";
+
+ if (ch >= 128) {
+ ch -= 128;
+ *bpout++ = 'M';
+ *bpout++ = '-';
+ }
+
+ if (ch < 32) {
+ *bpout++ = '^';
+ *bpout++ = ch + 64;
+ } else if (ch < 127) {
+ *bpout++ = ch;
+ } else {
+ *bpout++ = '^';
+ *bpout++ = '?';
+ }
+
+ *bpout = '\0';
+ return G.buf;
}
-static void
-set_control_char(const struct control_info *info, const char *arg,
- struct termios *mode)
+static tcflag_t *mode_type_flag(unsigned type, const struct termios *mode)
{
- unsigned char value;
+ static const uint8_t tcflag_offsets[] ALIGN1 = {
+ offsetof(struct termios, c_cflag), /* control */
+ offsetof(struct termios, c_iflag), /* input */
+ offsetof(struct termios, c_oflag), /* output */
+ offsetof(struct termios, c_lflag) /* local */
+ };
- if (info->name == stty_min || info->name == stty_time)
- value = bb_xparse_number(arg, stty_suffixes);
- else if (arg[0] == '\0' || arg[1] == '\0')
- value = arg[0];
- else if (STREQ(arg, "^-") || STREQ(arg, "undef"))
- value = _POSIX_VDISABLE;
- else if (arg[0] == '^' && arg[1] != '\0') { /* Ignore any trailing junk. */
- if (arg[1] == '?')
- value = 127;
- else
- value = arg[1] & ~0140; /* Non-letters get weird results. */
- } else
- value = bb_xparse_number(arg, stty_suffixes);
- mode->c_cc[info->offset] = value;
+ if (type <= local) {
+ return (tcflag_t*) (((char*)mode) + tcflag_offsets[type]);
+ }
+ return NULL;
}
-static void
-set_speed(enum speed_setting type, const char *arg, struct termios *mode)
+static void set_speed_or_die(enum speed_setting type, const char *const arg,
+ struct termios * const mode)
{
speed_t baud;
- baud = string_to_baud(arg);
+ baud = tty_value_to_baud(xatou(arg));
- if (type != output_speed) { /* either input or both */
+ if (type != output_speed) { /* either input or both */
cfsetispeed(mode, baud);
}
- if (type != input_speed) { /* either output or both */
+ if (type != input_speed) { /* either output or both */
cfsetospeed(mode, baud);
}
}
-#ifdef TIOCGWINSZ
+static NORETURN void perror_on_device_and_die(const char *fmt)
+{
+ bb_perror_msg_and_die(fmt, G.device_name);
+}
-static int get_win_size(int fd, struct winsize *win)
+static void perror_on_device(const char *fmt)
{
- int err = ioctl(fd, TIOCGWINSZ, (char *) win);
+ bb_perror_msg(fmt, G.device_name);
+}
- return err;
+/* Print format string MESSAGE and optional args.
+ Wrap to next line first if it won't fit.
+ Print a space first unless MESSAGE will start a new line */
+static void wrapf(const char *message, ...)
+{
+ char buf[128];
+ va_list args;
+ unsigned buflen;
+
+ va_start(args, message);
+ buflen = vsnprintf(buf, sizeof(buf), message, args);
+ va_end(args);
+ /* We seem to be called only with suitable lengths, but check if
+ somebody failed to adhere to this assumption just to be sure. */
+ if (!buflen || buflen >= sizeof(buf)) return;
+
+ if (G.current_col > 0) {
+ G.current_col++;
+ if (buf[0] != '\n') {
+ if (G.current_col + buflen >= G.max_col) {
+ bb_putchar('\n');
+ G.current_col = 0;
+ } else
+ bb_putchar(' ');
+ }
+ }
+ fputs(buf, stdout);
+ G.current_col += buflen;
+ if (buf[buflen-1] == '\n')
+ G.current_col = 0;
}
-static void
-set_window_size(int rows, int cols, int fd)
+static void set_window_size(const int rows, const int cols)
{
- struct winsize win;
+ struct winsize win = { 0, 0, 0, 0 };
- if (get_win_size(fd, &win)) {
- if (errno != EINVAL)
- perror_on_device("%s");
+ if (ioctl(STDIN_FILENO, TIOCGWINSZ, &win)) {
+ if (errno != EINVAL) {
+ goto bail;
+ }
memset(&win, 0, sizeof(win));
}
@@ -962,290 +750,196 @@ set_window_size(int rows, int cols, int fd)
if (cols >= 0)
win.ws_col = cols;
-# ifdef TIOCSSIZE
- /* Alexander Dupuy <dupuy@cs.columbia.edu> wrote:
- The following code deals with a bug in the SunOS 4.x (and 3.x?) kernel.
- This comment from sys/ttold.h describes Sun's twisted logic - a better
- test would have been (ts_lines > 64k || ts_cols > 64k || ts_cols == 0).
- At any rate, the problem is gone in Solaris 2.x. */
-
- if (win.ws_row == 0 || win.ws_col == 0) {
- struct ttysize ttysz;
-
- ttysz.ts_lines = win.ws_row;
- ttysz.ts_cols = win.ws_col;
-
- win.ws_row = win.ws_col = 1;
-
- if ((ioctl(fd, TIOCSWINSZ, (char *) &win) != 0)
- || (ioctl(fd, TIOCSSIZE, (char *) &ttysz) != 0)) {
- perror_on_device("%s");
- return;
- }
-# endif
-
- if (ioctl(fd, TIOCSWINSZ, (char *) &win))
+ if (ioctl(STDIN_FILENO, TIOCSWINSZ, (char *) &win))
+bail:
perror_on_device("%s");
}
-static void display_window_size(int fancy, int fd)
+static void display_window_size(const int fancy)
{
- const char *fmt_str = "%s" "\0" "%s: no size information for this device";
- struct winsize win;
+ const char *fmt_str = "%s\0%s: no size information for this device";
+ unsigned width, height;
- if (get_win_size(fd, &win)) {
+ if (get_terminal_width_height(STDIN_FILENO, &width, &height)) {
if ((errno != EINVAL) || ((fmt_str += 2), !fancy)) {
perror_on_device(fmt_str);
}
} else {
wrapf(fancy ? "rows %d; columns %d;" : "%d %d\n",
- win.ws_row, win.ws_col);
- if (!fancy)
- current_col = 0;
+ height, width);
}
}
-#endif
-static int screen_columns(void)
+static const struct suffix_mult stty_suffixes[] = {
+ { "b", 512 },
+ { "k", 1024 },
+ { "B", 1024 },
+ { }
+};
+
+static const struct mode_info *find_mode(const char *name)
{
- int columns;
- const char *s;
+ int i = index_in_strings(mode_name, name);
+ return i >= 0 ? &mode_info[i] : NULL;
+}
-#ifdef TIOCGWINSZ
- struct winsize win;
+static const struct control_info *find_control(const char *name)
+{
+ int i = index_in_strings(control_name, name);
+ return i >= 0 ? &control_info[i] : NULL;
+}
- /* With Solaris 2.[123], this ioctl fails and errno is set to
- EINVAL for telnet (but not rlogin) sessions.
- On ISC 3.0, it fails for the console and the serial port
- (but it works for ptys).
- It can also fail on any system when stdout isn't a tty.
- In case of any failure, just use the default. */
- if (get_win_size(STDOUT_FILENO, &win) == 0 && win.ws_col > 0)
- return win.ws_col;
-#endif
+enum {
+ param_need_arg = 0x80,
+ param_line = 1 | 0x80,
+ param_rows = 2 | 0x80,
+ param_cols = 3 | 0x80,
+ param_columns = 4 | 0x80,
+ param_size = 5,
+ param_speed = 6,
+ param_ispeed = 7 | 0x80,
+ param_ospeed = 8 | 0x80,
+};
- columns = 80;
- if ((s = getenv("COLUMNS"))) {
- columns = atoi(s);
- }
- return columns;
+static int find_param(const char *const name)
+{
+ static const char params[] ALIGN1 =
+ "line\0" /* 1 */
+ "rows\0" /* 2 */
+ "cols\0" /* 3 */
+ "columns\0" /* 4 */
+ "size\0" /* 5 */
+ "speed\0" /* 6 */
+ "ispeed\0"
+ "ospeed\0";
+ int i = index_in_strings(params, name) + 1;
+ if (i == 0)
+ return 0;
+ if (i != 5 && i != 6)
+ i |= 0x80;
+ return i;
}
-static tcflag_t *mode_type_flag(enum mode_type type, struct termios *mode)
+static int recover_mode(const char *arg, struct termios *mode)
{
- static const unsigned char tcflag_offsets[] = {
- offsetof(struct termios, c_cflag), /* control */
- offsetof(struct termios, c_iflag), /* input */
- offsetof(struct termios, c_oflag), /* output */
- offsetof(struct termios, c_lflag) /* local */
- };
+ int i, n;
+ unsigned chr;
+ unsigned long iflag, oflag, cflag, lflag;
- if (((unsigned int) type) <= local) {
- return (tcflag_t *)(((char *) mode) + tcflag_offsets[(int)type]);
+ /* Scan into temporaries since it is too much trouble to figure out
+ the right format for 'tcflag_t' */
+ if (sscanf(arg, "%lx:%lx:%lx:%lx%n",
+ &iflag, &oflag, &cflag, &lflag, &n) != 4)
+ return 0;
+ mode->c_iflag = iflag;
+ mode->c_oflag = oflag;
+ mode->c_cflag = cflag;
+ mode->c_lflag = lflag;
+ arg += n;
+ for (i = 0; i < NCCS; ++i) {
+ if (sscanf(arg, ":%x%n", &chr, &n) != 1)
+ return 0;
+ mode->c_cc[i] = chr;
+ arg += n;
}
- return NULL;
+
+ /* Fail if there are too many fields */
+ if (*arg != '\0')
+ return 0;
+
+ return 1;
}
-static void display_changed(struct termios *mode, int fd)
+static void display_recoverable(const struct termios *mode,
+ int UNUSED_PARAM dummy)
{
int i;
- int empty_line;
- tcflag_t *bitsp;
- unsigned long mask;
- enum mode_type prev_type = control;
-
- display_speed(mode, 1);
-#ifdef HAVE_C_LINE
- wrapf("line = %d;", mode->c_line);
-#endif
- putchar('\n');
- current_col = 0;
-
- empty_line = 1;
- for (i = 0; control_info[i].name != stty_min; ++i) {
- if (mode->c_cc[control_info[i].offset] == control_info[i].saneval)
- continue;
- /* If swtch is the same as susp, don't print both. */
-#if VSWTCH == VSUSP
- if (control_info[i].name == stty_swtch)
- continue;
-#endif
- /* If eof uses the same slot as min, only print whichever applies. */
-#if VEOF == VMIN
- if ((mode->c_lflag & ICANON) == 0
- && (control_info[i].name == stty_eof
- || control_info[i].name == stty_eol)) continue;
-#endif
+ printf("%lx:%lx:%lx:%lx",
+ (unsigned long) mode->c_iflag, (unsigned long) mode->c_oflag,
+ (unsigned long) mode->c_cflag, (unsigned long) mode->c_lflag);
+ for (i = 0; i < NCCS; ++i)
+ printf(":%x", (unsigned int) mode->c_cc[i]);
+ bb_putchar('\n');
+}
- empty_line = 0;
- wrapf("%s = %s;", control_info[i].name,
- visible(mode->c_cc[control_info[i].offset]));
- }
- if ((mode->c_lflag & ICANON) == 0) {
- wrapf("min = %d; time = %d;\n", (int) mode->c_cc[VMIN],
- (int) mode->c_cc[VTIME]);
- } else if (empty_line == 0)
- putchar('\n');
- current_col = 0;
-
- empty_line = 1;
- for (i = 0; i < NUM_mode_info; ++i) {
- if (mode_info[i].flags & OMIT)
- continue;
- if (mode_info[i].type != prev_type) {
- if (empty_line == 0) {
- putchar('\n');
- current_col = 0;
- empty_line = 1;
- }
- prev_type = mode_info[i].type;
- }
+static void display_speed(const struct termios *mode, int fancy)
+{
+ //01234567 8 9
+ const char *fmt_str = "%lu %lu\n\0ispeed %lu baud; ospeed %lu baud;";
+ unsigned long ispeed, ospeed;
- bitsp = mode_type_flag(mode_info[i].type, mode);
- mask = mode_info[i].mask ? mode_info[i].mask : mode_info[i].bits;
- if ((*bitsp & mask) == mode_info[i].bits) {
- if (mode_info[i].flags & SANE_UNSET) {
- wrapf("%s", mode_info[i].name);
- empty_line = 0;
- }
- }
- else if ((mode_info[i].flags & (SANE_SET | REV)) ==
- (SANE_SET | REV)) {
- wrapf("-%s", mode_info[i].name);
- empty_line = 0;
- }
+ ospeed = ispeed = cfgetispeed(mode);
+ if (ispeed == 0 || ispeed == (ospeed = cfgetospeed(mode))) {
+ ispeed = ospeed; /* in case ispeed was 0 */
+ //0123 4 5 6 7 8 9
+ fmt_str = "%lu\n\0\0\0\0\0speed %lu baud;";
}
- if (empty_line == 0)
- putchar('\n');
- current_col = 0;
+ if (fancy) fmt_str += 9;
+ wrapf(fmt_str, tty_baud_to_value(ispeed), tty_baud_to_value(ospeed));
}
-static void
-display_all(struct termios *mode, int fd)
+static void do_display(const struct termios *mode, const int all)
{
int i;
tcflag_t *bitsp;
unsigned long mask;
- enum mode_type prev_type = control;
+ int prev_type = control;
display_speed(mode, 1);
-#ifdef TIOCGWINSZ
- display_window_size(1, fd);
-#endif
+ if (all)
+ display_window_size(1);
#ifdef HAVE_C_LINE
- wrapf("line = %d;", mode->c_line);
+ wrapf("line = %d;\n", mode->c_line);
+#else
+ wrapf("\n");
#endif
- putchar('\n');
- current_col = 0;
- for (i = 0; control_info[i].name != stty_min; ++i) {
- /* If swtch is the same as susp, don't print both. */
+ for (i = 0; i != CIDX_min; ++i) {
+ /* If swtch is the same as susp, don't print both */
#if VSWTCH == VSUSP
- if (control_info[i].name == stty_swtch)
+ if (i == CIDX_swtch)
continue;
#endif
- /* If eof uses the same slot as min, only print whichever applies. */
+ /* If eof uses the same slot as min, only print whichever applies */
#if VEOF == VMIN
if ((mode->c_lflag & ICANON) == 0
- && (control_info[i].name == stty_eof
- || control_info[i].name == stty_eol)) continue;
+ && (i == CIDX_eof || i == CIDX_eol)
+ ) {
+ continue;
+ }
#endif
- wrapf("%s = %s;", control_info[i].name,
+ wrapf("%s = %s;", nth_string(control_name, i),
visible(mode->c_cc[control_info[i].offset]));
}
#if VEOF == VMIN
if ((mode->c_lflag & ICANON) == 0)
#endif
wrapf("min = %d; time = %d;", mode->c_cc[VMIN], mode->c_cc[VTIME]);
- if (current_col != 0)
- putchar('\n');
- current_col = 0;
+ if (G.current_col) wrapf("\n");
for (i = 0; i < NUM_mode_info; ++i) {
if (mode_info[i].flags & OMIT)
continue;
if (mode_info[i].type != prev_type) {
- putchar('\n');
- current_col = 0;
+ /* wrapf("\n"); */
+ if (G.current_col) wrapf("\n");
prev_type = mode_info[i].type;
}
bitsp = mode_type_flag(mode_info[i].type, mode);
mask = mode_info[i].mask ? mode_info[i].mask : mode_info[i].bits;
- if ((*bitsp & mask) == mode_info[i].bits)
- wrapf("%s", mode_info[i].name);
- else if (mode_info[i].flags & REV)
- wrapf("-%s", mode_info[i].name);
- }
- putchar('\n');
- current_col = 0;
-}
-
-static void display_speed(struct termios *mode, int fancy)
-{
- unsigned long ispeed, ospeed;
- const char *fmt_str =
- "%lu %lu\n\0" "ispeed %lu baud; ospeed %lu baud;\0"
- "%lu\n\0" "\0\0\0\0" "speed %lu baud;";
-
- ospeed = ispeed = cfgetispeed(mode);
- if (ispeed == 0 || ispeed == (ospeed = cfgetospeed(mode))) {
- ispeed = ospeed; /* in case ispeed was 0 */
- fmt_str += 43;
- }
- if (fancy) {
- fmt_str += 9;
- }
- wrapf(fmt_str, bb_baud_to_value(ispeed), bb_baud_to_value(ospeed));
- if (!fancy)
- current_col = 0;
-}
-
-static void display_recoverable(struct termios *mode, int fd)
-{
- int i;
-
- printf("%lx:%lx:%lx:%lx",
- (unsigned long) mode->c_iflag, (unsigned long) mode->c_oflag,
- (unsigned long) mode->c_cflag, (unsigned long) mode->c_lflag);
- for (i = 0; i < NCCS; ++i)
- printf(":%x", (unsigned int) mode->c_cc[i]);
- putchar('\n');
-}
-
-static int recover_mode(char *arg, struct termios *mode)
-{
- int i, n;
- unsigned int chr;
- unsigned long iflag, oflag, cflag, lflag;
-
- /* Scan into temporaries since it is too much trouble to figure out
- the right format for `tcflag_t'. */
- if (sscanf(arg, "%lx:%lx:%lx:%lx%n",
- &iflag, &oflag, &cflag, &lflag, &n) != 4)
- return 0;
- mode->c_iflag = iflag;
- mode->c_oflag = oflag;
- mode->c_cflag = cflag;
- mode->c_lflag = lflag;
- arg += n;
- for (i = 0; i < NCCS; ++i) {
- if (sscanf(arg, ":%x%n", &chr, &n) != 1)
- return 0;
- mode->c_cc[i] = chr;
- arg += n;
+ if ((*bitsp & mask) == mode_info[i].bits) {
+ if (all || (mode_info[i].flags & SANE_UNSET))
+ wrapf("-%s"+1, nth_string(mode_name, i));
+ } else {
+ if ((all && mode_info[i].flags & REV)
+ || (!all && (mode_info[i].flags & (SANE_SET | REV)) == (SANE_SET | REV))
+ ) {
+ wrapf("-%s", nth_string(mode_name, i));
+ }
+ }
}
-
- /* Fail if there are too many fields. */
- if (*arg != '\0')
- return 0;
-
- return 1;
-}
-
-static speed_t string_to_baud(const char *arg)
-{
- return bb_value_to_baud(bb_xparse_number(arg, 0));
+ if (G.current_col) wrapf("\n");
}
static void sane_mode(struct termios *mode)
@@ -1255,7 +949,7 @@ static void sane_mode(struct termios *mode)
for (i = 0; i < NUM_control_info; ++i) {
#if VMIN == VEOF
- if (control_info[i].name == stty_min)
+ if (i == CIDX_min)
break;
#endif
mode->c_cc[control_info[i].offset] = control_info[i].saneval;
@@ -1274,40 +968,472 @@ static void sane_mode(struct termios *mode)
}
}
-/* Return a string that is the printable representation of character CH. */
-/* Adapted from `cat' by Torbjorn Granlund. */
+/* Save set_mode from #ifdef forest plague */
+#ifndef ONLCR
+#define ONLCR 0
+#endif
+#ifndef OCRNL
+#define OCRNL 0
+#endif
+#ifndef ONLRET
+#define ONLRET 0
+#endif
+#ifndef XCASE
+#define XCASE 0
+#endif
+#ifndef IXANY
+#define IXANY 0
+#endif
+#ifndef TABDLY
+#define TABDLY 0
+#endif
+#ifndef OXTABS
+#define OXTABS 0
+#endif
+#ifndef IUCLC
+#define IUCLC 0
+#endif
+#ifndef OLCUC
+#define OLCUC 0
+#endif
+#ifndef ECHOCTL
+#define ECHOCTL 0
+#endif
+#ifndef ECHOKE
+#define ECHOKE 0
+#endif
-static const char *visible(unsigned int ch)
+static void set_mode(const struct mode_info *info, int reversed,
+ struct termios *mode)
{
- static char buf[10];
- char *bpout = buf;
+ tcflag_t *bitsp;
- if (ch == _POSIX_VDISABLE) {
- return "<undef>";
- }
+ bitsp = mode_type_flag(info->type, mode);
- if (ch >= 128) {
- ch -= 128;
- *bpout++ = 'M';
- *bpout++ = '-';
+ if (bitsp) {
+ if (reversed)
+ *bitsp = *bitsp & ~info->mask & ~info->bits;
+ else
+ *bitsp = (*bitsp & ~info->mask) | info->bits;
+ return;
}
- if (ch < 32) {
- *bpout++ = '^';
- *bpout++ = ch + 64;
- } else if (ch < 127) {
- *bpout++ = ch;
- } else {
- *bpout++ = '^';
- *bpout++ = '?';
+ /* Combination mode */
+ if (info == &mode_info[IDX_evenp] || info == &mode_info[IDX_parity]) {
+ if (reversed)
+ mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
+ else
+ mode->c_cflag = (mode->c_cflag & ~PARODD & ~CSIZE) | PARENB | CS7;
+ } else if (info == &mode_info[IDX_oddp]) {
+ if (reversed)
+ mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
+ else
+ mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARODD | PARENB;
+ } else if (info == &mode_info[IDX_nl]) {
+ if (reversed) {
+ mode->c_iflag = (mode->c_iflag | ICRNL) & ~INLCR & ~IGNCR;
+ mode->c_oflag = (mode->c_oflag | ONLCR) & ~OCRNL & ~ONLRET;
+ } else {
+ mode->c_iflag = mode->c_iflag & ~ICRNL;
+ if (ONLCR) mode->c_oflag = mode->c_oflag & ~ONLCR;
+ }
+ } else if (info == &mode_info[IDX_ek]) {
+ mode->c_cc[VERASE] = CERASE;
+ mode->c_cc[VKILL] = CKILL;
+ } else if (info == &mode_info[IDX_sane]) {
+ sane_mode(mode);
+ } else if (info == &mode_info[IDX_cbreak]) {
+ if (reversed)
+ mode->c_lflag |= ICANON;
+ else
+ mode->c_lflag &= ~ICANON;
+ } else if (info == &mode_info[IDX_pass8]) {
+ if (reversed) {
+ mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARENB;
+ mode->c_iflag |= ISTRIP;
+ } else {
+ mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
+ mode->c_iflag &= ~ISTRIP;
+ }
+ } else if (info == &mode_info[IDX_litout]) {
+ if (reversed) {
+ mode->c_cflag = (mode->c_cflag & ~CSIZE) | CS7 | PARENB;
+ mode->c_iflag |= ISTRIP;
+ mode->c_oflag |= OPOST;
+ } else {
+ mode->c_cflag = (mode->c_cflag & ~PARENB & ~CSIZE) | CS8;
+ mode->c_iflag &= ~ISTRIP;
+ mode->c_oflag &= ~OPOST;
+ }
+ } else if (info == &mode_info[IDX_raw] || info == &mode_info[IDX_cooked]) {
+ if ((info == &mode_info[IDX_raw] && reversed)
+ || (info == &mode_info[IDX_cooked] && !reversed)
+ ) {
+ /* Cooked mode */
+ mode->c_iflag |= BRKINT | IGNPAR | ISTRIP | ICRNL | IXON;
+ mode->c_oflag |= OPOST;
+ mode->c_lflag |= ISIG | ICANON;
+#if VMIN == VEOF
+ mode->c_cc[VEOF] = CEOF;
+#endif
+#if VTIME == VEOL
+ mode->c_cc[VEOL] = CEOL;
+#endif
+ } else {
+ /* Raw mode */
+ mode->c_iflag = 0;
+ mode->c_oflag &= ~OPOST;
+ mode->c_lflag &= ~(ISIG | ICANON | XCASE);
+ mode->c_cc[VMIN] = 1;
+ mode->c_cc[VTIME] = 0;
+ }
+ }
+ else if (IXANY && info == &mode_info[IDX_decctlq]) {
+ if (reversed)
+ mode->c_iflag |= IXANY;
+ else
+ mode->c_iflag &= ~IXANY;
+ }
+ else if (TABDLY && info == &mode_info[IDX_tabs]) {
+ if (reversed)
+ mode->c_oflag = (mode->c_oflag & ~TABDLY) | TAB3;
+ else
+ mode->c_oflag = (mode->c_oflag & ~TABDLY) | TAB0;
+ }
+ else if (OXTABS && info == &mode_info[IDX_tabs]) {
+ if (reversed)
+ mode->c_oflag |= OXTABS;
+ else
+ mode->c_oflag &= ~OXTABS;
+ } else
+ if (XCASE && IUCLC && OLCUC
+ && (info == &mode_info[IDX_lcase] || info == &mode_info[IDX_LCASE])
+ ) {
+ if (reversed) {
+ mode->c_lflag &= ~XCASE;
+ mode->c_iflag &= ~IUCLC;
+ mode->c_oflag &= ~OLCUC;
+ } else {
+ mode->c_lflag |= XCASE;
+ mode->c_iflag |= IUCLC;
+ mode->c_oflag |= OLCUC;
+ }
+ } else if (info == &mode_info[IDX_crt]) {
+ mode->c_lflag |= ECHOE | ECHOCTL | ECHOKE;
+ } else if (info == &mode_info[IDX_dec]) {
+ mode->c_cc[VINTR] = 3; /* ^C */
+ mode->c_cc[VERASE] = 127; /* DEL */
+ mode->c_cc[VKILL] = 21; /* ^U */
+ mode->c_lflag |= ECHOE | ECHOCTL | ECHOKE;
+ if (IXANY) mode->c_iflag &= ~IXANY;
}
+}
- *bpout = '\0';
- return (const char *) buf;
+static void set_control_char_or_die(const struct control_info *info,
+ const char *arg, struct termios *mode)
+{
+ unsigned char value;
+
+ if (info == &control_info[CIDX_min] || info == &control_info[CIDX_time])
+ value = xatoul_range_sfx(arg, 0, 0xff, stty_suffixes);
+ else if (arg[0] == '\0' || arg[1] == '\0')
+ value = arg[0];
+ else if (!strcmp(arg, "^-") || !strcmp(arg, "undef"))
+ value = _POSIX_VDISABLE;
+ else if (arg[0] == '^') { /* Ignore any trailing junk (^Cjunk) */
+ value = arg[1] & 0x1f; /* Non-letters get weird results */
+ if (arg[1] == '?')
+ value = 127;
+ } else
+ value = xatoul_range_sfx(arg, 0, 0xff, stty_suffixes);
+ mode->c_cc[info->offset] = value;
}
-#ifdef TEST
+#define STTY_require_set_attr (1 << 0)
+#define STTY_speed_was_set (1 << 1)
+#define STTY_verbose_output (1 << 2)
+#define STTY_recoverable_output (1 << 3)
+#define STTY_noargs (1 << 4)
+
+int stty_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
+int stty_main(int argc, char **argv)
+{
+ struct termios mode;
+ void (*output_func)(const struct termios *, const int);
+ const char *file_name = NULL;
+ int display_all = 0;
+ int stty_state;
+ int k;
+
+ INIT_G();
+
+ stty_state = STTY_noargs;
+ output_func = do_display;
+
+ /* First pass: only parse/verify command line params */
+ k = 0;
+ while (argv[++k]) {
+ const struct mode_info *mp;
+ const struct control_info *cp;
+ const char *arg = argv[k];
+ const char *argnext = argv[k+1];
+ int param;
+
+ if (arg[0] == '-') {
+ int i;
+ mp = find_mode(arg+1);
+ if (mp) {
+ if (!(mp->flags & REV))
+ goto invalid_argument;
+ stty_state &= ~STTY_noargs;
+ continue;
+ }
+ /* It is an option - parse it */
+ i = 0;
+ while (arg[++i]) {
+ switch (arg[i]) {
+ case 'a':
+ stty_state |= STTY_verbose_output;
+ output_func = do_display;
+ display_all = 1;
+ break;
+ case 'g':
+ stty_state |= STTY_recoverable_output;
+ output_func = display_recoverable;
+ break;
+ case 'F':
+ if (file_name)
+ bb_error_msg_and_die("only one device may be specified");
+ file_name = &arg[i+1]; /* "-Fdevice" ? */
+ if (!file_name[0]) { /* nope, "-F device" */
+ int p = k+1; /* argv[p] is argnext */
+ file_name = argnext;
+ if (!file_name)
+ bb_error_msg_and_die(bb_msg_requires_arg, "-F");
+ /* remove -F param from arg[vc] */
+ --argc;
+ while (argv[p]) { argv[p] = argv[p+1]; ++p; }
+ }
+ goto end_option;
+ default:
+ goto invalid_argument;
+ }
+ }
+ end_option:
+ continue;
+ }
+
+ mp = find_mode(arg);
+ if (mp) {
+ stty_state &= ~STTY_noargs;
+ continue;
+ }
+
+ cp = find_control(arg);
+ if (cp) {
+ if (!argnext)
+ bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ /* called for the side effect of xfunc death only */
+ set_control_char_or_die(cp, argnext, &mode);
+ stty_state &= ~STTY_noargs;
+ ++k;
+ continue;
+ }
+
+ param = find_param(arg);
+ if (param & param_need_arg) {
+ if (!argnext)
+ bb_error_msg_and_die(bb_msg_requires_arg, arg);
+ ++k;
+ }
+
+ switch (param) {
+#ifdef HAVE_C_LINE
+ case param_line:
+# ifndef TIOCGWINSZ
+ xatoul_range_sfx(argnext, 1, INT_MAX, stty_suffixes);
+ break;
+# endif /* else fall-through */
+#endif
+#ifdef TIOCGWINSZ
+ case param_rows:
+ case param_cols:
+ case param_columns:
+ xatoul_range_sfx(argnext, 1, INT_MAX, stty_suffixes);
+ break;
+ case param_size:
+#endif
+ case param_speed:
+ break;
+ case param_ispeed:
+ /* called for the side effect of xfunc death only */
+ set_speed_or_die(input_speed, argnext, &mode);
+ break;
+ case param_ospeed:
+ /* called for the side effect of xfunc death only */
+ set_speed_or_die(output_speed, argnext, &mode);
+ break;
+ default:
+ if (recover_mode(arg, &mode) == 1) break;
+ if (tty_value_to_baud(xatou(arg)) != (speed_t) -1) break;
+ invalid_argument:
+ bb_error_msg_and_die("invalid argument '%s'", arg);
+ }
+ stty_state &= ~STTY_noargs;
+ }
+
+ /* Specifying both -a and -g is an error */
+ if ((stty_state & (STTY_verbose_output | STTY_recoverable_output)) ==
+ (STTY_verbose_output | STTY_recoverable_output))
+ bb_error_msg_and_die("verbose and stty-readable output styles are mutually exclusive");
+ /* Specifying -a or -g with non-options is an error */
+ if (!(stty_state & STTY_noargs) &&
+ (stty_state & (STTY_verbose_output | STTY_recoverable_output)))
+ bb_error_msg_and_die("modes may not be set when specifying an output style");
+
+ /* Now it is safe to start doing things */
+ if (file_name) {
+ int fd, fdflags;
+ G.device_name = file_name;
+ fd = xopen(G.device_name, O_RDONLY | O_NONBLOCK);
+ if (fd != STDIN_FILENO) {
+ dup2(fd, STDIN_FILENO);
+ close(fd);
+ }
+ fdflags = fcntl(STDIN_FILENO, F_GETFL);
+ if (fdflags < 0 ||
+ fcntl(STDIN_FILENO, F_SETFL, fdflags & ~O_NONBLOCK) < 0)
+ perror_on_device_and_die("%s: cannot reset non-blocking mode");
+ }
+
+ /* Initialize to all zeroes so there is no risk memcmp will report a
+ spurious difference in an uninitialized portion of the structure */
+ memset(&mode, 0, sizeof(mode));
+ if (tcgetattr(STDIN_FILENO, &mode))
+ perror_on_device_and_die("%s");
+
+ if (stty_state & (STTY_verbose_output | STTY_recoverable_output | STTY_noargs)) {
+ get_terminal_width_height(STDOUT_FILENO, &G.max_col, NULL);
+ output_func(&mode, display_all);
+ return EXIT_SUCCESS;
+ }
+
+ /* Second pass: perform actions */
+ k = 0;
+ while (argv[++k]) {
+ const struct mode_info *mp;
+ const struct control_info *cp;
+ const char *arg = argv[k];
+ const char *argnext = argv[k+1];
+ int param;
+
+ if (arg[0] == '-') {
+ mp = find_mode(arg+1);
+ if (mp) {
+ set_mode(mp, 1 /* reversed */, &mode);
+ stty_state |= STTY_require_set_attr;
+ }
+ /* It is an option - already parsed. Skip it */
+ continue;
+ }
+
+ mp = find_mode(arg);
+ if (mp) {
+ set_mode(mp, 0 /* non-reversed */, &mode);
+ stty_state |= STTY_require_set_attr;
+ continue;
+ }
+
+ cp = find_control(arg);
+ if (cp) {
+ ++k;
+ set_control_char_or_die(cp, argnext, &mode);
+ stty_state |= STTY_require_set_attr;
+ continue;
+ }
+
+ param = find_param(arg);
+ if (param & param_need_arg) {
+ ++k;
+ }
+
+ switch (param) {
+#ifdef HAVE_C_LINE
+ case param_line:
+ mode.c_line = xatoul_sfx(argnext, stty_suffixes);
+ stty_state |= STTY_require_set_attr;
+ break;
+#endif
+#ifdef TIOCGWINSZ
+ case param_cols:
+ set_window_size(-1, xatoul_sfx(argnext, stty_suffixes));
+ break;
+ case param_size:
+ display_window_size(0);
+ break;
+ case param_rows:
+ set_window_size(xatoul_sfx(argnext, stty_suffixes), -1);
+ break;
+#endif
+ case param_speed:
+ display_speed(&mode, 0);
+ break;
+ case param_ispeed:
+ set_speed_or_die(input_speed, argnext, &mode);
+ stty_state |= (STTY_require_set_attr | STTY_speed_was_set);
+ break;
+ case param_ospeed:
+ set_speed_or_die(output_speed, argnext, &mode);
+ stty_state |= (STTY_require_set_attr | STTY_speed_was_set);
+ break;
+ default:
+ if (recover_mode(arg, &mode) == 1)
+ stty_state |= STTY_require_set_attr;
+ else /* true: if (tty_value_to_baud(xatou(arg)) != (speed_t) -1) */{
+ set_speed_or_die(both_speeds, arg, &mode);
+ stty_state |= (STTY_require_set_attr | STTY_speed_was_set);
+ } /* else - impossible (caught in the first pass):
+ bb_error_msg_and_die("invalid argument '%s'", arg); */
+ }
+ }
+
+ if (stty_state & STTY_require_set_attr) {
+ struct termios new_mode;
-const char *bb_applet_name = "stty";
+ if (tcsetattr(STDIN_FILENO, TCSADRAIN, &mode))
+ perror_on_device_and_die("%s");
+ /* POSIX (according to Zlotnick's book) tcsetattr returns zero if
+ it performs *any* of the requested operations. This means it
+ can report 'success' when it has actually failed to perform
+ some proper subset of the requested operations. To detect
+ this partial failure, get the current terminal attributes and
+ compare them to the requested ones */
+
+ /* Initialize to all zeroes so there is no risk memcmp will report a
+ spurious difference in an uninitialized portion of the structure */
+ memset(&new_mode, 0, sizeof(new_mode));
+ if (tcgetattr(STDIN_FILENO, &new_mode))
+ perror_on_device_and_die("%s");
+
+ if (memcmp(&mode, &new_mode, sizeof(mode)) != 0) {
+#ifdef CIBAUD
+ /* SunOS 4.1.3 (at least) has the problem that after this sequence,
+ tcgetattr (&m1); tcsetattr (&m1); tcgetattr (&m2);
+ sometimes (m1 != m2). The only difference is in the four bits
+ of the c_cflag field corresponding to the baud rate. To save
+ Sun users a little confusion, don't report an error if this
+ happens. But suppress the error only if we haven't tried to
+ set the baud rate explicitly -- otherwise we'd never give an
+ error for a true failure to set the baud rate */
+
+ new_mode.c_cflag &= (~CIBAUD);
+ if ((stty_state & STTY_speed_was_set)
+ || memcmp(&mode, &new_mode, sizeof(mode)) != 0)
#endif
+ perror_on_device_and_die("%s: cannot perform all requested operations");
+ }
+ }
+
+ return EXIT_SUCCESS;
+}
generated by cgit v1.2.3-54-g00ecf (git 2.44.0) at 2024-04-24 00:39:34 +0000