+/* vi: set sw=4 ts=4: */
/*
- * rt_names.c rtnetlink names DB.
+ * 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.
*
- * 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, <kuznet@ms2.inr.ac.ru>
+ * Authors: Alexey Kuznetsov, <kuznet@ms2.inr.ac.ru>
*/
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include "libbb.h"
+#include "rt_names.h"
-#include <stdint.h>
+typedef struct rtnl_tab_t {
+ const char *cached_str;
+ unsigned cached_result;
+ const char *tab[256];
+} rtnl_tab_t;
-static void rtnl_tab_initialize(char *file, char **tab, int size)
+static void rtnl_tab_initialize(const char *file, const char **tab)
{
- char buf[512];
- FILE *fp;
-
- fp = fopen(file, "r");
- if (!fp)
- return;
- while (fgets(buf, sizeof(buf), fp)) {
- char *p = buf;
- int id;
- char namebuf[512];
-
- while (*p == ' ' || *p == '\t')
- p++;
- if (*p == '#' || *p == '\n' || *p == 0)
- continue;
- if (sscanf(p, "0x%x %s\n", &id, namebuf) != 2 &&
- sscanf(p, "0x%x %s #", &id, namebuf) != 2 &&
- sscanf(p, "%d %s\n", &id, namebuf) != 2 &&
- sscanf(p, "%d %s #", &id, namebuf) != 2) {
- fprintf(stderr, "Database %s is corrupted at %s\n",
- file, p);
- return;
+ char *token[2];
+ parser_t *parser = config_open2(file, fopen_for_read);
+
+ while (config_read(parser, token, 2, 2, "# \t", PARSE_NORMAL)) {
+ unsigned id = bb_strtou(token[0], NULL, 0);
+ if (id > 256) {
+ bb_error_msg("database %s is corrupted at line %d",
+ file, parser->lineno);
+ break;
}
-
- if (id<0 || id>size)
- continue;
-
- tab[id] = strdup(namebuf);
- }
- fclose(fp);
-}
-
-
-static char * rtnl_rtprot_tab[256] = {
- "none",
- "redirect",
- "kernel",
- "boot",
- "static",
- NULL,
- NULL,
- NULL,
- "gated",
- "ra",
- "mrt",
- "zebra",
- "bird",
-};
-
-
-
-static int rtnl_rtprot_init;
-
-static void rtnl_rtprot_initialize(void)
-{
- rtnl_rtprot_init = 1;
- rtnl_tab_initialize("/etc/iproute2/rt_protos",
- rtnl_rtprot_tab, 256);
-}
-
-const char * rtnl_rtprot_n2a(int id, char *buf, int len)
-{
- if (id<0 || id>=256) {
- snprintf(buf, len, "%d", id);
- return buf;
- }
- if (!rtnl_rtprot_tab[id]) {
- if (!rtnl_rtprot_init)
- rtnl_rtprot_initialize();
+ tab[id] = xstrdup(token[1]);
}
- if (rtnl_rtprot_tab[id])
- return rtnl_rtprot_tab[id];
- snprintf(buf, len, "%d", id);
- return buf;
+ config_close(parser);
}
-int rtnl_rtprot_a2n(uint32_t *id, char *arg)
+static int rtnl_a2n(rtnl_tab_t *tab, uint32_t *id, const char *arg, int base)
{
- static char *cache = NULL;
- static unsigned long res;
- char *end;
- int i;
+ unsigned i;
- if (cache && strcmp(cache, arg) == 0) {
- *id = res;
+ if (tab->cached_str && strcmp(tab->cached_str, arg) == 0) {
+ *id = tab->cached_result;
return 0;
}
- if (!rtnl_rtprot_init)
- rtnl_rtprot_initialize();
-
- for (i=0; i<256; i++) {
- if (rtnl_rtprot_tab[i] &&
- strcmp(rtnl_rtprot_tab[i], arg) == 0) {
- cache = rtnl_rtprot_tab[i];
- res = i;
- *id = res;
+ for (i = 0; i < 256; i++) {
+ if (tab->tab[i]
+ && strcmp(tab->tab[i], arg) == 0
+ ) {
+ tab->cached_str = tab->tab[i];
+ tab->cached_result = i;
+ *id = i;
return 0;
}
}
- res = strtoul(arg, &end, 0);
- if (!end || end == arg || *end || res > 255)
+ i = bb_strtou(arg, NULL, base);
+ if (i > 255)
return -1;
- *id = res;
+ *id = i;
return 0;
}
+static rtnl_tab_t *rtnl_rtprot_tab;
-static char * rtnl_rtscope_tab[256] = {
- "global",
-};
-
-static int rtnl_rtscope_init;
-
-static void rtnl_rtscope_initialize(void)
+static void rtnl_rtprot_initialize(void)
{
- rtnl_rtscope_init = 1;
- rtnl_rtscope_tab[255] = "nowhere";
- rtnl_rtscope_tab[254] = "host";
- rtnl_rtscope_tab[253] = "link";
- rtnl_rtscope_tab[200] = "site";
- rtnl_tab_initialize("/etc/iproute2/rt_scopes",
- rtnl_rtscope_tab, 256);
+ static const char *const init_tab[] = {
+ "none",
+ "redirect",
+ "kernel",
+ "boot",
+ "static",
+ NULL,
+ NULL,
+ NULL,
+ "gated",
+ "ra",
+ "mrt",
+ "zebra",
+ "bird",
+ };
+
+ if (rtnl_rtprot_tab)
+ return;
+ rtnl_rtprot_tab = xzalloc(sizeof(*rtnl_rtprot_tab));
+ memcpy(rtnl_rtprot_tab->tab, init_tab, sizeof(init_tab));
+ rtnl_tab_initialize("/etc/iproute2/rt_protos", rtnl_rtprot_tab->tab);
}
-const char * rtnl_rtscope_n2a(int id, char *buf, int len)
+const char* FAST_FUNC rtnl_rtprot_n2a(int id, char *buf)
{
- if (id<0 || id>=256) {
- snprintf(buf, len, "%d", id);
+ if (id < 0 || id >= 256) {
+ sprintf(buf, "%d", id);
return buf;
}
- if (!rtnl_rtscope_tab[id]) {
- if (!rtnl_rtscope_init)
- rtnl_rtscope_initialize();
- }
- if (rtnl_rtscope_tab[id])
- return rtnl_rtscope_tab[id];
- snprintf(buf, len, "%d", id);
+
+ rtnl_rtprot_initialize();
+
+ if (rtnl_rtprot_tab->tab[id])
+ return rtnl_rtprot_tab->tab[id];
+ /* buf is SPRINT_BSIZE big */
+ sprintf(buf, "%d", id);
return buf;
}
-int rtnl_rtscope_a2n(uint32_t *id, char *arg)
+int FAST_FUNC rtnl_rtprot_a2n(uint32_t *id, char *arg)
{
- static char *cache = NULL;
- static unsigned long res;
- char *end;
- int i;
-
- if (cache && strcmp(cache, arg) == 0) {
- *id = res;
- return 0;
- }
-
- if (!rtnl_rtscope_init)
- rtnl_rtscope_initialize();
-
- for (i=0; i<256; i++) {
- if (rtnl_rtscope_tab[i] &&
- strcmp(rtnl_rtscope_tab[i], arg) == 0) {
- cache = rtnl_rtscope_tab[i];
- res = i;
- *id = res;
- return 0;
- }
- }
-
- res = strtoul(arg, &end, 0);
- if (!end || end == arg || *end || res > 255)
- return -1;
- *id = res;
- return 0;
+ rtnl_rtprot_initialize();
+ return rtnl_a2n(rtnl_rtprot_tab, id, arg, 0);
}
+static rtnl_tab_t *rtnl_rtscope_tab;
-static char * rtnl_rtrealm_tab[256] = {
- "unknown",
-};
-
-static int rtnl_rtrealm_init;
-
-static void rtnl_rtrealm_initialize(void)
+static void rtnl_rtscope_initialize(void)
{
- rtnl_rtrealm_init = 1;
- rtnl_tab_initialize("/etc/iproute2/rt_realms",
- rtnl_rtrealm_tab, 256);
+ if (rtnl_rtscope_tab)
+ return;
+ rtnl_rtscope_tab = xzalloc(sizeof(*rtnl_rtscope_tab));
+ rtnl_rtscope_tab->tab[0] = "global";
+ rtnl_rtscope_tab->tab[255] = "nowhere";
+ rtnl_rtscope_tab->tab[254] = "host";
+ rtnl_rtscope_tab->tab[253] = "link";
+ rtnl_rtscope_tab->tab[200] = "site";
+ rtnl_tab_initialize("/etc/iproute2/rt_scopes", rtnl_rtscope_tab->tab);
}
-const char * rtnl_rtrealm_n2a(int id, char *buf, int len)
+const char* FAST_FUNC rtnl_rtscope_n2a(int id, char *buf)
{
- if (id<0 || id>=256) {
- snprintf(buf, len, "%d", id);
+ if (id < 0 || id >= 256) {
+ sprintf(buf, "%d", id);
return buf;
}
- if (!rtnl_rtrealm_tab[id]) {
- if (!rtnl_rtrealm_init)
- rtnl_rtrealm_initialize();
- }
- if (rtnl_rtrealm_tab[id])
- return rtnl_rtrealm_tab[id];
- snprintf(buf, len, "%d", id);
+
+ rtnl_rtscope_initialize();
+
+ if (rtnl_rtscope_tab->tab[id])
+ return rtnl_rtscope_tab->tab[id];
+ /* buf is SPRINT_BSIZE big */
+ sprintf(buf, "%d", id);
return buf;
}
-
-int rtnl_rtrealm_a2n(uint32_t *id, char *arg)
+int FAST_FUNC rtnl_rtscope_a2n(uint32_t *id, char *arg)
{
- static char *cache = NULL;
- static unsigned long res;
- char *end;
- int i;
-
- if (cache && strcmp(cache, arg) == 0) {
- *id = res;
- return 0;
- }
-
- if (!rtnl_rtrealm_init)
- rtnl_rtrealm_initialize();
-
- for (i=0; i<256; i++) {
- if (rtnl_rtrealm_tab[i] &&
- strcmp(rtnl_rtrealm_tab[i], arg) == 0) {
- cache = rtnl_rtrealm_tab[i];
- res = i;
- *id = res;
- return 0;
- }
- }
-
- res = strtoul(arg, &end, 0);
- if (!end || end == arg || *end || res > 255)
- return -1;
- *id = res;
- return 0;
+ rtnl_rtscope_initialize();
+ return rtnl_a2n(rtnl_rtscope_tab, id, arg, 0);
}
+static rtnl_tab_t *rtnl_rtrealm_tab;
-static char * rtnl_rttable_tab[256] = {
- "unspec",
-};
-
-static int rtnl_rttable_init;
-
-static void rtnl_rttable_initialize(void)
+static void rtnl_rtrealm_initialize(void)
{
- rtnl_rttable_init = 1;
- rtnl_rttable_tab[255] = "local";
- rtnl_rttable_tab[254] = "main";
- rtnl_tab_initialize("/etc/iproute2/rt_tables",
- rtnl_rttable_tab, 256);
+ if (rtnl_rtrealm_tab) return;
+ rtnl_rtrealm_tab = xzalloc(sizeof(*rtnl_rtrealm_tab));
+ rtnl_rtrealm_tab->tab[0] = "unknown";
+ rtnl_tab_initialize("/etc/iproute2/rt_realms", rtnl_rtrealm_tab->tab);
}
-const char * rtnl_rttable_n2a(int id, char *buf, int len)
+int FAST_FUNC rtnl_rtrealm_a2n(uint32_t *id, char *arg)
{
- if (id<0 || id>=256) {
- snprintf(buf, len, "%d", id);
- return buf;
- }
- if (!rtnl_rttable_tab[id]) {
- if (!rtnl_rttable_init)
- rtnl_rttable_initialize();
- }
- if (rtnl_rttable_tab[id])
- return rtnl_rttable_tab[id];
- snprintf(buf, len, "%d", id);
- return buf;
+ rtnl_rtrealm_initialize();
+ return rtnl_a2n(rtnl_rtrealm_tab, id, arg, 0);
}
-int rtnl_rttable_a2n(uint32_t *id, char *arg)
+#if ENABLE_FEATURE_IP_RULE
+const char* FAST_FUNC rtnl_rtrealm_n2a(int id, char *buf)
{
- static char *cache = NULL;
- static unsigned long res;
- char *end;
- int i;
-
- if (cache && strcmp(cache, arg) == 0) {
- *id = res;
- return 0;
+ if (id < 0 || id >= 256) {
+ sprintf(buf, "%d", id);
+ return buf;
}
- if (!rtnl_rttable_init)
- rtnl_rttable_initialize();
-
- for (i=0; i<256; i++) {
- if (rtnl_rttable_tab[i] &&
- strcmp(rtnl_rttable_tab[i], arg) == 0) {
- cache = rtnl_rttable_tab[i];
- res = i;
- *id = res;
- return 0;
- }
- }
+ rtnl_rtrealm_initialize();
- i = strtoul(arg, &end, 0);
- if (!end || end == arg || *end || i > 255)
- return -1;
- *id = i;
- return 0;
+ if (rtnl_rtrealm_tab->tab[id])
+ return rtnl_rtrealm_tab->tab[id];
+ /* buf is SPRINT_BSIZE big */
+ sprintf(buf, "%d", id);
+ return buf;
}
+#endif
-static char * rtnl_rtdsfield_tab[256] = {
- "0",
-};
-
-static int rtnl_rtdsfield_init;
+static rtnl_tab_t *rtnl_rtdsfield_tab;
static void rtnl_rtdsfield_initialize(void)
{
- rtnl_rtdsfield_init = 1;
- rtnl_tab_initialize("/etc/iproute2/rt_dsfield",
- rtnl_rtdsfield_tab, 256);
+ if (rtnl_rtdsfield_tab) return;
+ rtnl_rtdsfield_tab = xzalloc(sizeof(*rtnl_rtdsfield_tab));
+ rtnl_rtdsfield_tab->tab[0] = "0";
+ rtnl_tab_initialize("/etc/iproute2/rt_dsfield", rtnl_rtdsfield_tab->tab);
}
-const char * rtnl_dsfield_n2a(int id, char *buf, int len)
+const char* FAST_FUNC rtnl_dsfield_n2a(int id, char *buf)
{
- if (id<0 || id>=256) {
- snprintf(buf, len, "%d", id);
+ if (id < 0 || id >= 256) {
+ sprintf(buf, "%d", id);
return buf;
}
- if (!rtnl_rtdsfield_tab[id]) {
- if (!rtnl_rtdsfield_init)
- rtnl_rtdsfield_initialize();
- }
- if (rtnl_rtdsfield_tab[id])
- return rtnl_rtdsfield_tab[id];
- snprintf(buf, len, "0x%02x", id);
+
+ rtnl_rtdsfield_initialize();
+
+ if (rtnl_rtdsfield_tab->tab[id])
+ return rtnl_rtdsfield_tab->tab[id];
+ /* buf is SPRINT_BSIZE big */
+ sprintf(buf, "0x%02x", id);
return buf;
}
+int FAST_FUNC rtnl_dsfield_a2n(uint32_t *id, char *arg)
+{
+ rtnl_rtdsfield_initialize();
+ return rtnl_a2n(rtnl_rtdsfield_tab, id, arg, 16);
+}
+
+
+#if ENABLE_FEATURE_IP_RULE
+static rtnl_tab_t *rtnl_rttable_tab;
-int rtnl_dsfield_a2n(uint32_t *id, char *arg)
+static void rtnl_rttable_initialize(void)
{
- static char *cache = NULL;
- static unsigned long res;
- char *end;
- int i;
+ if (rtnl_rtdsfield_tab) return;
+ rtnl_rttable_tab = xzalloc(sizeof(*rtnl_rttable_tab));
+ rtnl_rttable_tab->tab[0] = "unspec";
+ rtnl_rttable_tab->tab[255] = "local";
+ rtnl_rttable_tab->tab[254] = "main";
+ rtnl_rttable_tab->tab[253] = "default";
+ rtnl_tab_initialize("/etc/iproute2/rt_tables", rtnl_rttable_tab->tab);
+}
- if (cache && strcmp(cache, arg) == 0) {
- *id = res;
- return 0;
+const char* FAST_FUNC rtnl_rttable_n2a(int id, char *buf)
+{
+ if (id < 0 || id >= 256) {
+ sprintf(buf, "%d", id);
+ return buf;
}
- if (!rtnl_rtdsfield_init)
- rtnl_rtdsfield_initialize();
+ rtnl_rttable_initialize();
- for (i=0; i<256; i++) {
- if (rtnl_rtdsfield_tab[i] &&
- strcmp(rtnl_rtdsfield_tab[i], arg) == 0) {
- cache = rtnl_rtdsfield_tab[i];
- res = i;
- *id = res;
- return 0;
- }
- }
+ if (rtnl_rttable_tab->tab[id])
+ return rtnl_rttable_tab->tab[id];
+ /* buf is SPRINT_BSIZE big */
+ sprintf(buf, "%d", id);
+ return buf;
+}
- res = strtoul(arg, &end, 16);
- if (!end || end == arg || *end || res > 255)
- return -1;
- *id = res;
- return 0;
+int FAST_FUNC rtnl_rttable_a2n(uint32_t *id, char *arg)
+{
+ rtnl_rttable_initialize();
+ return rtnl_a2n(rtnl_rttable_tab, id, arg, 0);
}
+#endif
projects / oweals / busybox.git / blobdiff