From 008d0be72b2f160382c6e880765e96b64a050c65 Mon Sep 17 00:00:00 2001 From: Andreas Baumann Date: Sat, 3 Jan 2015 12:04:58 +0100 Subject: imported original firmware WRT54GL_v4.30.11_11_US --- release/src/router/busybox/console-tools/loadacm.c | 357 +++++++++++++++++++++ 1 file changed, 357 insertions(+) create mode 100644 release/src/router/busybox/console-tools/loadacm.c (limited to 'release/src/router/busybox/console-tools/loadacm.c') diff --git a/release/src/router/busybox/console-tools/loadacm.c b/release/src/router/busybox/console-tools/loadacm.c new file mode 100644 index 00000000..640aa440 --- /dev/null +++ b/release/src/router/busybox/console-tools/loadacm.c @@ -0,0 +1,357 @@ +/* vi: set sw=4 ts=4: */ +/* + * Derived from + * mapscrn.c - version 0.92 + * + * Was taken from console-tools and adapted by + * Peter Novodvorsky + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "busybox.h" + +typedef unsigned short unicode; + +static long int ctoi(unsigned char *s, int *is_unicode); +static int old_screen_map_read_ascii(FILE * fp, unsigned char buf[]); +static int uni_screen_map_read_ascii(FILE * fp, unicode buf[], int *is_unicode); +static unicode utf8_to_ucs2(char *buf); +static int screen_map_load(int fd, FILE * fp); + +int loadacm_main(int argc, char **argv) +{ + int fd; + + if (argc>=2 && *argv[1]=='-') { + bb_show_usage(); + } + + fd = open(CURRENT_VC, O_RDWR); + if (fd < 0) { + bb_perror_msg_and_die("Error opening " CURRENT_VC); + } + + if (screen_map_load(fd, stdin)) { + bb_perror_msg_and_die("Error loading acm"); + } + + write(fd, "\033(K", 3); + + return EXIT_SUCCESS; +} + +static int screen_map_load(int fd, FILE * fp) +{ + struct stat stbuf; + unicode wbuf[E_TABSZ]; + unsigned char buf[E_TABSZ]; + int parse_failed = 0; + int is_unicode; + + if (fstat(fileno(fp), &stbuf)) + bb_perror_msg_and_die("Cannot stat map file"); + + /* first try a UTF screen-map: either ASCII (no restriction) or binary (regular file) */ + if (! + (parse_failed = + (-1 == uni_screen_map_read_ascii(fp, wbuf, &is_unicode))) +|| (S_ISREG(stbuf.st_mode) && (stbuf.st_size == (sizeof(unicode) * E_TABSZ)))) { /* test for binary UTF map by size */ + if (parse_failed) { + if (-1 == fseek(fp, 0, SEEK_SET)) { + if (errno == ESPIPE) + bb_error_msg_and_die("16bit screen-map MUST be a regular file."); + else + bb_perror_msg_and_die("fseek failed reading binary 16bit screen-map"); + } + + if (fread(wbuf, sizeof(unicode) * E_TABSZ, 1, fp) != 1) + bb_perror_msg_and_die("Cannot read [new] map from file"); +#if 0 + else + bb_error_msg("Input screen-map is binary."); +#endif + } + + /* if it was effectively a 16-bit ASCII, OK, else try to read as 8-bit map */ + /* same if it was binary, ie. if parse_failed */ + if (parse_failed || is_unicode) { + if (ioctl(fd, PIO_UNISCRNMAP, wbuf)) + bb_perror_msg_and_die("PIO_UNISCRNMAP ioctl"); + else + return 0; + } + } + + /* rewind... */ + if (-1 == fseek(fp, 0, SEEK_SET)) { + if (errno == ESPIPE) + bb_error_msg("Assuming 8bit screen-map - MUST be a regular file."), + exit(1); + else + bb_perror_msg_and_die("fseek failed assuming 8bit screen-map"); + } + + /* ... and try an old 8-bit screen-map */ + if (!(parse_failed = (-1 == old_screen_map_read_ascii(fp, buf))) || + (S_ISREG(stbuf.st_mode) && (stbuf.st_size == E_TABSZ))) { /* test for binary old 8-bit map by size */ + if (parse_failed) { + if (-1 == fseek(fp, 0, SEEK_SET)) { + if (errno == ESPIPE) + /* should not - it succedeed above */ + bb_error_msg_and_die("fseek() returned ESPIPE !"); + else + bb_perror_msg_and_die("fseek for binary 8bit screen-map"); + } + + if (fread(buf, E_TABSZ, 1, fp) != 1) + bb_perror_msg_and_die("Cannot read [old] map from file"); +#if 0 + else + bb_error_msg("Input screen-map is binary."); +#endif + } + + if (ioctl(fd, PIO_SCRNMAP, buf)) + bb_perror_msg_and_die("PIO_SCRNMAP ioctl"); + else + return 0; + } + bb_error_msg("Error parsing symbolic map"); + return(1); +} + + +/* + * - reads `fp' as a 16-bit ASCII SFM file. + * - returns -1 on error. + * - returns it in `unicode' in an E_TABSZ-elements array. + * - sets `*is_unicode' flagiff there were any non-8-bit + * (ie. real 16-bit) mapping. + * + * FIXME: ignores everything after second word + */ +static int uni_screen_map_read_ascii(FILE * fp, unicode buf[], int *is_unicode) +{ + char buffer[256]; /* line buffer reading file */ + char *p, *q; /* 1st + 2nd words in line */ + int in, on; /* the same, as numbers */ + int tmp_is_unicode; /* tmp for is_unicode calculation */ + int i; /* loop index - result holder */ + int ret_code = 0; /* return code */ + sigset_t acmsigset, old_sigset; + + assert(is_unicode); + + *is_unicode = 0; + + /* first 128 codes defaults to ASCII */ + for (i = 0; i < 128; i++) + buf[i] = i; + /* remaining defaults to replacement char (usually E_TABSZ = 256) */ + for (; i < E_TABSZ; i++) + buf[i] = 0xfffd; + + /* block SIGCHLD */ + sigemptyset(&acmsigset); + sigaddset(&acmsigset, SIGCHLD); + sigprocmask(SIG_BLOCK, &acmsigset, &old_sigset); + + do { + if (NULL == fgets(buffer, sizeof(buffer), fp)) { + if (feof(fp)) + break; + else + bb_perror_msg_and_die("uni_screen_map_read_ascii() can't read line"); + } + + /* get "charset-relative charcode", stripping leading spaces */ + p = strtok(buffer, " \t\n"); + + /* skip empty lines and comments */ + if (!p || *p == '#') + continue; + + /* get unicode mapping */ + q = strtok(NULL, " \t\n"); + if (q) { + in = ctoi(p, NULL); + if (in < 0 || in > 255) { + ret_code = -1; + break; + } + + on = ctoi(q, &tmp_is_unicode); + if (in < 0 && on > 65535) { + ret_code = -1; + break; + } + + *is_unicode |= tmp_is_unicode; + buf[in] = on; + } else { + ret_code = -1; + break; + } + } + while (1); /* terminated by break on feof() */ + + /* restore sig mask */ + sigprocmask(SIG_SETMASK, &old_sigset, NULL); + + return ret_code; +} + + +static int old_screen_map_read_ascii(FILE * fp, unsigned char buf[]) +{ + char buffer[256]; + int in, on; + char *p, *q; + + for (in = 0; in < 256; in++) + buf[in] = in; + + while (fgets(buffer, sizeof(buffer) - 1, fp)) { + p = strtok(buffer, " \t\n"); + + if (!p || *p == '#') + continue; + + q = strtok(NULL, " \t\n#"); + if (q) { + in = ctoi(p, NULL); + if (in < 0 || in > 255) + return -1; + + on = ctoi(q, NULL); + if (in < 0 && on > 255) + return -1; + + buf[in] = on; + } else + return -1; + } + + return (0); +} + + +/* + * - converts a string into an int. + * - supports dec and hex bytes, hex UCS2, single-quoted byte and UTF8 chars. + * - returns the converted value + * - if `is_unicode != NULL', use it to tell whether it was unicode + * + * CAVEAT: will report valid UTF mappings using only 1 byte as 8-bit ones. + */ +static long int ctoi(unsigned char *s, int *is_unicode) +{ + int i; + size_t ls; + + ls = strlen(s); + if (is_unicode) + *is_unicode = 0; + + /* hex-specified UCS2 */ + if ((strncmp(s, "U+", 2) == 0) && + (strspn(s + 2, "0123456789abcdefABCDEF") == ls - 2)) { + sscanf(s + 2, "%x", &i); + if (is_unicode) + *is_unicode = 1; + } + + /* hex-specified byte */ + else if ((ls <= 4) && (strncmp(s, "0x", 2) == 0) && + (strspn(s + 2, "0123456789abcdefABCDEF") == ls - 2)) + sscanf(s + 2, "%x", &i); + + /* oct-specified number (byte) */ + else if ((*s == '0') && (strspn(s, "01234567") == ls)) + sscanf(s, "%o", &i); + + /* dec-specified number (byte) */ + else if (strspn(s, "0123456789") == ls) + sscanf(s, "%d", &i); + + /* single-byte quoted char */ + else if ((strlen(s) == 3) && (s[0] == '\'') && (s[2] == '\'')) + i = s[1]; + + /* multi-byte UTF8 quoted char */ + else if ((s[0] == '\'') && (s[ls - 1] == '\'')) { + s[ls - 1] = 0; /* ensure we'll not "parse UTF too far" */ + i = utf8_to_ucs2(s + 1); + if (is_unicode) + *is_unicode = 1; + } else + return (-1); + + return (i); +} + + +static unicode utf8_to_ucs2(char *buf) +{ + int utf_count = 0; + long utf_char = 0; + unicode tc = 0; + unsigned char c; + + do { + c = *buf; + buf++; + + /* if byte should be part of multi-byte sequence */ + if (c & 0x80) { + /* if we have already started to parse a UTF8 sequence */ + if (utf_count > 0 && (c & 0xc0) == 0x80) { + utf_char = (utf_char << 6) | (c & 0x3f); + utf_count--; + if (utf_count == 0) + tc = utf_char; + else + continue; + } else { /* Possibly 1st char of a UTF8 sequence */ + + if ((c & 0xe0) == 0xc0) { + utf_count = 1; + utf_char = (c & 0x1f); + } else if ((c & 0xf0) == 0xe0) { + utf_count = 2; + utf_char = (c & 0x0f); + } else if ((c & 0xf8) == 0xf0) { + utf_count = 3; + utf_char = (c & 0x07); + } else if ((c & 0xfc) == 0xf8) { + utf_count = 4; + utf_char = (c & 0x03); + } else if ((c & 0xfe) == 0xfc) { + utf_count = 5; + utf_char = (c & 0x01); + } else + utf_count = 0; + continue; + } + } else { /* not part of multi-byte sequence - treat as ASCII + * this makes incomplete sequences to be ignored + */ + tc = c; + utf_count = 0; + } + } + while (utf_count); + + return tc; +} -- cgit v1.2.3-54-g00ecf