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 --- .../router/busybox/networking/libiproute/utils.c | 359 +++++++++++++++++++++ 1 file changed, 359 insertions(+) create mode 100644 release/src/router/busybox/networking/libiproute/utils.c (limited to 'release/src/router/busybox/networking/libiproute/utils.c') diff --git a/release/src/router/busybox/networking/libiproute/utils.c b/release/src/router/busybox/networking/libiproute/utils.c new file mode 100644 index 00000000..fa154860 --- /dev/null +++ b/release/src/router/busybox/networking/libiproute/utils.c @@ -0,0 +1,359 @@ +/* + * utils.c + * + * 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 of the License, or (at your option) any later version. + * + * Authors: Alexey Kuznetsov, + * + * + * Changes: + * + * Rani Assaf 980929: resolve addresses + */ + +#include +#include +#include +#include + +#include "utils.h" +#include "libbb.h" + +int get_integer(int *val, char *arg, int base) +{ + long res; + char *ptr; + + if (!arg || !*arg) + return -1; + res = strtol(arg, &ptr, base); + if (!ptr || ptr == arg || *ptr || res > INT_MAX || res < INT_MIN) + return -1; + *val = res; + return 0; +} + +int get_unsigned(unsigned *val, char *arg, int base) +{ + unsigned long res; + char *ptr; + + if (!arg || !*arg) + return -1; + res = strtoul(arg, &ptr, base); + if (!ptr || ptr == arg || *ptr || res > UINT_MAX) + return -1; + *val = res; + return 0; +} + +int get_u32(__u32 * val, char *arg, int base) +{ + unsigned long res; + char *ptr; + + if (!arg || !*arg) + return -1; + res = strtoul(arg, &ptr, base); + if (!ptr || ptr == arg || *ptr || res > 0xFFFFFFFFUL) + return -1; + *val = res; + return 0; +} + +int get_u16(__u16 * val, char *arg, int base) +{ + unsigned long res; + char *ptr; + + if (!arg || !*arg) + return -1; + res = strtoul(arg, &ptr, base); + if (!ptr || ptr == arg || *ptr || res > 0xFFFF) + return -1; + *val = res; + return 0; +} + +int get_u8(__u8 * val, char *arg, int base) +{ + unsigned long res; + char *ptr; + + if (!arg || !*arg) + return -1; + res = strtoul(arg, &ptr, base); + if (!ptr || ptr == arg || *ptr || res > 0xFF) + return -1; + *val = res; + return 0; +} + +int get_s16(__s16 * val, char *arg, int base) +{ + long res; + char *ptr; + + if (!arg || !*arg) + return -1; + res = strtol(arg, &ptr, base); + if (!ptr || ptr == arg || *ptr || res > 0x7FFF || res < -0x8000) + return -1; + *val = res; + return 0; +} + +int get_s8(__s8 * val, char *arg, int base) +{ + long res; + char *ptr; + + if (!arg || !*arg) + return -1; + res = strtol(arg, &ptr, base); + if (!ptr || ptr == arg || *ptr || res > 0x7F || res < -0x80) + return -1; + *val = res; + return 0; +} + +int get_addr_1(inet_prefix * addr, char *name, int family) +{ + char *cp; + unsigned char *ap = (unsigned char *) addr->data; + int i; + + memset(addr, 0, sizeof(*addr)); + + if (strcmp(name, "default") == 0 || + strcmp(name, "all") == 0 || strcmp(name, "any") == 0) { + addr->family = family; + addr->bytelen = (family == AF_INET6 ? 16 : 4); + addr->bitlen = -1; + return 0; + } + + if (strchr(name, ':')) { + addr->family = AF_INET6; + if (family != AF_UNSPEC && family != AF_INET6) + return -1; + if (inet_pton(AF_INET6, name, addr->data) <= 0) + return -1; + addr->bytelen = 16; + addr->bitlen = -1; + return 0; + } + + addr->family = AF_INET; + if (family != AF_UNSPEC && family != AF_INET) + return -1; + addr->bytelen = 4; + addr->bitlen = -1; + for (cp = name, i = 0; *cp; cp++) { + if (*cp <= '9' && *cp >= '0') { + ap[i] = 10 * ap[i] + (*cp - '0'); + continue; + } + if (*cp == '.' && ++i <= 3) + continue; + return -1; + } + return 0; +} + +int get_prefix_1(inet_prefix * dst, char *arg, int family) +{ + int err; + unsigned plen; + char *slash; + + memset(dst, 0, sizeof(*dst)); + + if (strcmp(arg, "default") == 0 || strcmp(arg, "any") == 0) { + dst->family = family; + dst->bytelen = 0; + dst->bitlen = 0; + return 0; + } + + slash = strchr(arg, '/'); + if (slash) + *slash = 0; + err = get_addr_1(dst, arg, family); + if (err == 0) { + switch (dst->family) { + case AF_INET6: + dst->bitlen = 128; + break; + default: + case AF_INET: + dst->bitlen = 32; + } + if (slash) { + if (get_integer(&plen, slash + 1, 0) || plen > dst->bitlen) { + err = -1; + goto done; + } + dst->bitlen = plen; + } + } + done: + if (slash) + *slash = '/'; + return err; +} + +int get_addr(inet_prefix * dst, char *arg, int family) +{ + if (family == AF_PACKET) { + bb_error_msg_and_die("\"%s\" may be inet address, but it is not allowed in this context.", arg); + } + if (get_addr_1(dst, arg, family)) { + bb_error_msg_and_die("an inet address is expected rather than \"%s\".", arg); + } + return 0; +} + +int get_prefix(inet_prefix * dst, char *arg, int family) +{ + if (family == AF_PACKET) { + bb_error_msg_and_die("\"%s\" may be inet address, but it is not allowed in this context.", arg); + } + if (get_prefix_1(dst, arg, family)) { + bb_error_msg_and_die("an inet address is expected rather than \"%s\".", arg); + } + return 0; +} + +__u32 get_addr32(char *name) +{ + inet_prefix addr; + + if (get_addr_1(&addr, name, AF_INET)) { + bb_error_msg_and_die("an IP address is expected rather than \"%s\"", name); + } + return addr.data[0]; +} + +void incomplete_command() +{ + bb_error_msg("Command line is not complete. Try option \"help\""); + exit(-1); +} + +void invarg(char *msg, char *arg) +{ + bb_error_msg("argument \"%s\" is wrong: %s", arg, msg); + exit(-1); +} + +void duparg(char *key, char *arg) +{ + bb_error_msg("duplicate \"%s\": \"%s\" is the second value.", key, arg); + exit(-1); +} + +void duparg2(char *key, char *arg) +{ + bb_error_msg("either \"%s\" is duplicate, or \"%s\" is a garbage.", key, arg); + exit(-1); +} + +int matches(char *cmd, char *pattern) +{ + int len = strlen(cmd); + + if (len > strlen(pattern)) { + return -1; + } + return memcmp(pattern, cmd, len); +} + +int inet_addr_match(inet_prefix * a, inet_prefix * b, int bits) +{ + __u32 *a1 = a->data; + __u32 *a2 = b->data; + int words = bits >> 0x05; + + bits &= 0x1f; + + if (words) + if (memcmp(a1, a2, words << 2)) + return -1; + + if (bits) { + __u32 w1, w2; + __u32 mask; + + w1 = a1[words]; + w2 = a2[words]; + + mask = htonl((0xffffffff) << (0x20 - bits)); + + if ((w1 ^ w2) & mask) + return 1; + } + + return 0; +} + +int __iproute2_hz_internal; + +int __get_hz(void) +{ + int hz = 0; + FILE *fp = fopen("/proc/net/psched", "r"); + + if (fp) { + unsigned nom, denom; + + if (fscanf(fp, "%*08x%*08x%08x%08x", &nom, &denom) == 2) + if (nom == 1000000) + hz = denom; + fclose(fp); + } + if (hz) + return hz; + return sysconf(_SC_CLK_TCK); +} + +const char *rt_addr_n2a(int af, int len, void *addr, char *buf, int buflen) +{ + switch (af) { + case AF_INET: + case AF_INET6: + return inet_ntop(af, addr, buf, buflen); + default: + return "???"; + } +} + + +const char *format_host(int af, int len, void *addr, char *buf, int buflen) +{ +#ifdef RESOLVE_HOSTNAMES + if (resolve_hosts) { + struct hostent *h_ent; + + if (len <= 0) { + switch (af) { + case AF_INET: + len = 4; + break; + case AF_INET6: + len = 16; + break; + default:; + } + } + if (len > 0 && (h_ent = gethostbyaddr(addr, len, af)) != NULL) { + snprintf(buf, buflen - 1, "%s", h_ent->h_name); + return buf; + } + } +#endif + return rt_addr_n2a(af, len, addr, buf, buflen); +} -- cgit v1.2.3-54-g00ecf