X-Git-Url: http://git.onelab.eu/?p=iproute2.git;a=blobdiff_plain;f=lib%2Futils.c;fp=lib%2Futils.c;h=0000000000000000000000000000000000000000;hp=4bdda7122859f2649e3eacfb3f3a6cf62ffacad3;hb=3331a68859fd71047bb1f309048960b48eab2d83;hpb=2bd4a72f2100be7ad7d9518cb1d49bb2a5b71994 diff --git a/lib/utils.c b/lib/utils.c deleted file mode 100644 index 4bdda71..0000000 --- a/lib/utils.c +++ /dev/null @@ -1,640 +0,0 @@ -/* - * 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 -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - - -#include "utils.h" - -int get_integer(int *val, const 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, const 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_u64(__u64 *val, const char *arg, int base) -{ - unsigned long long res; - char *ptr; - - if (!arg || !*arg) - return -1; - res = strtoull(arg, &ptr, base); - if (!ptr || ptr == arg || *ptr || res == 0xFFFFFFFFULL) - return -1; - *val = res; - return 0; -} - -int get_u32(__u32 *val, const 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, const 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, const 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, const 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, const 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, const char *name, int family) -{ - const 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) { - if (family == AF_DECnet) - return -1; - 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; - } - - if (family == AF_DECnet) { - struct dn_naddr dna; - addr->family = AF_DECnet; - if (dnet_pton(AF_DECnet, name, &dna) <= 0) - return -1; - memcpy(addr->data, dna.a_addr, 2); - addr->bytelen = 2; - 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 || - strcmp(arg, "all") == 0) { - if (family == AF_DECnet) - return -1; - 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; - case AF_DECnet: - dst->bitlen = 16; - break; - default: - case AF_INET: - dst->bitlen = 32; - } - if (slash) { - if (get_unsigned(&plen, slash+1, 0) || plen > dst->bitlen) { - err = -1; - goto done; - } - dst->flags |= PREFIXLEN_SPECIFIED; - dst->bitlen = plen; - } - } -done: - if (slash) - *slash = '/'; - return err; -} - -int get_addr(inet_prefix *dst, const char *arg, int family) -{ - if (family == AF_PACKET) { - fprintf(stderr, "Error: \"%s\" may be inet address, but it is not allowed in this context.\n", arg); - exit(1); - } - if (get_addr_1(dst, arg, family)) { - fprintf(stderr, "Error: an inet address is expected rather than \"%s\".\n", arg); - exit(1); - } - return 0; -} - -int get_prefix(inet_prefix *dst, char *arg, int family) -{ - if (family == AF_PACKET) { - fprintf(stderr, "Error: \"%s\" may be inet prefix, but it is not allowed in this context.\n", arg); - exit(1); - } - if (get_prefix_1(dst, arg, family)) { - fprintf(stderr, "Error: an inet prefix is expected rather than \"%s\".\n", arg); - exit(1); - } - return 0; -} - -__u32 get_addr32(const char *name) -{ - inet_prefix addr; - if (get_addr_1(&addr, name, AF_INET)) { - fprintf(stderr, "Error: an IP address is expected rather than \"%s\"\n", name); - exit(1); - } - return addr.data[0]; -} - -void incomplete_command(void) -{ - fprintf(stderr, "Command line is not complete. Try option \"help\"\n"); - exit(-1); -} - -void missarg(const char *key) -{ - fprintf(stderr, "Error: argument \"%s\" is required\n", key); - exit(-1); -} - -void invarg(const char *msg, const char *arg) -{ - fprintf(stderr, "Error: argument \"%s\" is wrong: %s\n", arg, msg); - exit(-1); -} - -void duparg(const char *key, const char *arg) -{ - fprintf(stderr, "Error: duplicate \"%s\": \"%s\" is the second value.\n", key, arg); - exit(-1); -} - -void duparg2(const char *key, const char *arg) -{ - fprintf(stderr, "Error: either \"%s\" is duplicate, or \"%s\" is a garbage.\n", key, arg); - exit(-1); -} - -int matches(const char *cmd, const char *pattern) -{ - int len = strlen(cmd); - if (len > strlen(pattern)) - return -1; - return memcmp(pattern, cmd, len); -} - -int inet_addr_match(const inet_prefix *a, const 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) -{ - char name[1024]; - int hz = 0; - FILE *fp; - - if (getenv("HZ")) - return atoi(getenv("HZ")) ? : HZ; - - if (getenv("PROC_NET_PSCHED")) { - snprintf(name, sizeof(name)-1, "%s", getenv("PROC_NET_PSCHED")); - } else if (getenv("PROC_ROOT")) { - snprintf(name, sizeof(name)-1, "%s/net/psched", getenv("PROC_ROOT")); - } else { - strcpy(name, "/proc/net/psched"); - } - fp = fopen(name, "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 HZ; -} - -int __iproute2_user_hz_internal; - -int __get_user_hz(void) -{ - return sysconf(_SC_CLK_TCK); -} - -const char *rt_addr_n2a(int af, int len, const void *addr, char *buf, int buflen) -{ - switch (af) { - case AF_INET: - case AF_INET6: - return inet_ntop(af, addr, buf, buflen); - case AF_IPX: - return ipx_ntop(af, addr, buf, buflen); - case AF_DECnet: - { - struct dn_naddr dna = { 2, { 0, 0, }}; - memcpy(dna.a_addr, addr, 2); - return dnet_ntop(af, &dna, buf, buflen); - } - default: - return "???"; - } -} - -#ifdef RESOLVE_HOSTNAMES -struct namerec -{ - struct namerec *next; - inet_prefix addr; - char *name; -}; - -static struct namerec *nht[256]; - -char *resolve_address(const char *addr, int len, int af) -{ - struct namerec *n; - struct hostent *h_ent; - unsigned hash; - static int notfirst; - - - if (af == AF_INET6 && ((__u32*)addr)[0] == 0 && - ((__u32*)addr)[1] == 0 && ((__u32*)addr)[2] == htonl(0xffff)) { - af = AF_INET; - addr += 12; - len = 4; - } - - hash = addr[len-1] ^ addr[len-2] ^ addr[len-3] ^ addr[len-4]; - - for (n = nht[hash]; n; n = n->next) { - if (n->addr.family == af && - n->addr.bytelen == len && - memcmp(n->addr.data, addr, len) == 0) - return n->name; - } - if ((n = malloc(sizeof(*n))) == NULL) - return NULL; - n->addr.family = af; - n->addr.bytelen = len; - n->name = NULL; - memcpy(n->addr.data, addr, len); - n->next = nht[hash]; - nht[hash] = n; - if (++notfirst == 1) - sethostent(1); - fflush(stdout); - - if ((h_ent = gethostbyaddr(addr, len, af)) != NULL) - n->name = strdup(h_ent->h_name); - - /* Even if we fail, "negative" entry is remembered. */ - return n->name; -} -#endif - - -const char *format_host(int af, int len, const void *addr, - char *buf, int buflen) -{ -#ifdef RESOLVE_HOSTNAMES - if (resolve_hosts) { - char *n; - if (len <= 0) { - switch (af) { - case AF_INET: - len = 4; - break; - case AF_INET6: - len = 16; - break; - case AF_IPX: - len = 10; - break; -#ifdef AF_DECnet - /* I see no reasons why gethostbyname - may not work for DECnet */ - case AF_DECnet: - len = 2; - break; -#endif - default: ; - } - } - if (len > 0 && - (n = resolve_address(addr, len, af)) != NULL) - return n; - } -#endif - return rt_addr_n2a(af, len, addr, buf, buflen); -} - - -char *hexstring_n2a(const __u8 *str, int len, char *buf, int blen) -{ - char *ptr = buf; - int i; - - for (i=0; i 1) { - *ptr++ = ':'; - blen--; - } - } - return buf; -} - -__u8* hexstring_a2n(const char *str, __u8 *buf, int blen) -{ - int cnt = 0; - - for (;;) { - unsigned acc; - char ch; - - acc = 0; - - while ((ch = *str) != ':' && ch != 0) { - if (ch >= '0' && ch <= '9') - ch -= '0'; - else if (ch >= 'a' && ch <= 'f') - ch -= 'a'-10; - else if (ch >= 'A' && ch <= 'F') - ch -= 'A'-10; - else - return NULL; - acc = (acc<<4) + ch; - str++; - } - - if (acc > 255) - return NULL; - if (cnt < blen) { - buf[cnt] = acc; - cnt++; - } - if (ch == 0) - break; - ++str; - } - if (cnt < blen) - memset(buf+cnt, 0, blen-cnt); - return buf; -} - -int print_timestamp(FILE *fp) -{ - struct timeval tv; - char *tstr; - - memset(&tv, 0, sizeof(tv)); - gettimeofday(&tv, NULL); - - tstr = asctime(localtime(&tv.tv_sec)); - tstr[strlen(tstr)-1] = 0; - fprintf(fp, "Timestamp: %s %lu usec\n", tstr, tv.tv_usec); - return 0; -} - -int cmdlineno; - -/* Like glibc getline but handle continuation lines and comments */ -size_t getcmdline(char **linep, size_t *lenp, FILE *in) -{ - size_t cc; - char *cp; - - if ((cc = getline(linep, lenp, in)) < 0) - return cc; /* eof or error */ - ++cmdlineno; - - cp = strchr(*linep, '#'); - if (cp) - *cp = '\0'; - - while ((cp = strstr(*linep, "\\\n")) != NULL) { - char *line1 = NULL; - size_t len1 = 0; - size_t cc1; - - if ((cc1 = getline(&line1, &len1, in)) < 0) { - fprintf(stderr, "Missing continuation line\n"); - return cc1; - } - - ++cmdlineno; - *cp = 0; - - cp = strchr(line1, '#'); - if (cp) - *cp = '\0'; - - *linep = realloc(*linep, strlen(*linep) + strlen(line1) + 1); - if (!*linep) { - fprintf(stderr, "Out of memory\n"); - return -1; - } - cc += cc1 - 2; - strcat(*linep, line1); - free(line1); - } - return cc; -} - -/* split command line into argument vector */ -int makeargs(char *line, char *argv[], int maxargs) -{ - static const char ws[] = " \t\r\n"; - char *cp; - int argc = 0; - - for (cp = strtok(line, ws); cp; cp = strtok(NULL, ws)) { - if (argc >= (maxargs - 1)) { - fprintf(stderr, "Too many arguments to command\n"); - exit(1); - } - argv[argc++] = cp; - } - argv[argc] = NULL; - - return argc; -}