This commit was manufactured by cvs2svn to create branch

[iptables.git] / ippool / libippool.c

diff --git a/ippool/libippool.c b/ippool/libippool.c
new file mode 100644 (file)
index 0000000..7f3ac76
--- /dev/null
+++ b/ippool/libippool.c
@@ -0,0 +1,72 @@
+/* support functions for ip_pool modules */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#include <libippool/ip_pool_support.h>
+
+void ip_pool_init(void)
+{
+}
+
+ip_pool_t ip_pool_get_index(char *name)
+{
+       FILE *fp;
+       char buf[256];
+
+       if (isdigit(*name))
+               return atoi(name);
+       fp = fopen(IPPOOL_CONF, "r");
+       if (!fp) exit_error(PARAMETER_PROBLEM,
+                       "cannot open %s - no pool names", IPPOOL_CONF);
+       while (fgets(buf, sizeof(buf), fp)) {
+               char *p = strtok(buf, " \t\n");
+               ip_pool_t index;
+
+               if (!p || *p == '#') continue;
+               index = atoi(p);
+               p = strtok(0, " \t\n");
+               if (p && 0 == strcmp(p, name)) {
+                       fclose(fp);
+                       return index;
+               }
+       }
+       exit_error(PARAMETER_PROBLEM,
+               "pool '%s' not found in %s\n", name, IPPOOL_CONF);
+}
+
+char *ip_pool_get_name(char *buf, int size, ip_pool_t index, int numeric)
+{
+       FILE *fp;
+       int ok = 0;
+
+       /* make sure we have enough room, at least for a %d */
+       if (size < 16)
+               exit_error(PARAMETER_PROBLEM,
+                       "ip_pool_support:get_name buf too small (%d vs. 16)\n",
+                       size);
+       if (numeric)
+               goto do_numeric;
+       fp = fopen(IPPOOL_CONF, "r");
+       if (fp) {
+               while (fgets(buf, size, fp)) {
+                       char *p = strtok(buf, " \t\n");
+
+                       if (!p || *p == '#') continue;
+                       if (index != atoi(p)) continue;
+                       p = strtok(0, " \t\n");
+                       if (!p || *p == '#') continue;
+                       memmove(buf, p, strlen(p)+1);
+                       ok = 1;
+                       break;
+               }
+               fclose(fp);
+       }
+       if (!ok) {
+do_numeric:
+               sprintf(buf, "%d", index);
+       }
+       return buf;
+}