1 files changed, 72 insertions, 0 deletions
diff --git a/ippool/libippool.c b/ippool/libippool.c
new file mode 100644
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;
+}