2 files changed, 164 insertions, 0 deletions
diff --git a/ulogd/conffile.c b/ulogd/conffile.c
new file mode 100644
index 0000000..383384d
--- /dev/null
+++ b/ulogd/conffile.c
@@ -0,0 +1,115 @@
+/* config file parser functions
+ * (C) 2000 by Harald Welte <laforge@gnumonks.org>
+ *
+ * $Id$
+ * 
+ * This code is distributed under the terms of GNU GPL */
+
+#include <stdio.h>
+#include <string.h>
+#include "conffile.h"
+
+#ifdef DEBUG_CONF
+#define DEBUGC(format, args...) fprintf(stderr, format ## args)
+#else
+#define DEBUGC 
+#endif
+
+static config_entry_t *config = NULL;
+
+static char *get_word(const char *string)
+{
+	int len;
+	char *word, *space;
+	space = strchr(string, ' ');
+	if (!space)
+		return NULL;
+	len = space - string;
+	word = (char *) malloc(len+1);
+	if (!word)
+		return NULL;
+	strncpy(word, string, len);
+
+	return word;
+}
+
+int config_register_key(config_entry_t *ce)
+{
+	ce->next = config;
+	ce->hit = 0;
+	config = ce;
+	return 0;
+}
+
+int config_parse_file(const char *fname)
+{
+	FILE *cfile;
+	char *line, *word, *args;
+	config_entry_t *ce;
+
+	line = (char *) malloc(LINE_LEN+1);	
+	if (!line) 
+		return -ERROOM;
+	
+	cfile = fopen(fname, "r");
+	if (!cfile) {
+		free(line);
+		return -ERROPEN;
+	}
+	
+	while (line = fgets(line, LINE_LEN, cfile))
+	{
+		if (*line == '#')
+			continue;
+
+		word = get_word(line);
+		if (!word)
+			continue;
+
+		args = line + strlen(word) + 1;
+
+		for (ce = config; ce; ce = ce->next) {
+			if (strcmp(ce->key, word)) {
+				continue;
+			}
+			if (ce->hit && !(ce->options & CONFIG_OPT_MULTI))
+			{
+				DEBUGC("->ce-hit and option not multi!\n");
+				free(line);
+				fclose(cfile);
+				return -ERRMULT;
+			}
+			ce->hit++;
+			switch (ce->type) {
+				case CONFIG_TYPE_STRING:
+					if (strlen(args) <= ce->u.str.maxlen) {
+						strcpy(ce->u.str.string, args);
+					}
+					break;
+				case CONFIG_TYPE_INT:
+					ce->u.value = atoi(args);
+					break;
+				case CONFIG_TYPE_CALLBACK:
+					(ce->u.parser)(args);
+					break;
+			}
+			break;
+		}
+	}
+
+
+	for (ce = config; ce; ce = ce->next) {
+		if ((ce->options & CONFIG_OPT_MANDATORY) && (ce->hit == 0)) {
+			DEBUGC("mandatory config directive %s not found\n",
+				ce->key);
+			free(line);
+			fclose(cfile);
+			return -ERRMAND;
+		}
+
+	}
+
+	fclose(cfile);
+	return 0;
+}
+
diff --git a/ulogd/conffile.h b/ulogd/conffile.h
new file mode 100644
index 0000000..90fc501
--- /dev/null
+++ b/ulogd/conffile.h
@@ -0,0 +1,49 @@
+/* config file parser functions
+ * (C) 2000 by Harald Welte <laforge@gnumonks.org>
+ *
+ * $Id$
+ * 
+ * This code is distributed under the terms of GNU GPL */
+
+#include <sys/types.h>
+
+/* errors returned by config functions */
+enum {
+	ERRNONE = 0,
+	ERROPEN,	/* unable to open config file */
+	ERROOM,		/* out of memory */
+	ERRMULT,	/* non-multiple option occured more  than once */
+	ERRMAND,	/* mandatory option not found */
+};
+
+/* maximum line lenght of config file entries */
+#define LINE_LEN 255
+
+/* maximum lenght of config key name */
+#define CONFIG_KEY_LEN	30
+
+#define CONFIG_TYPE_INT		0x0001
+#define CONFIG_TYPE_STRING	0x0002
+#define CONFIG_TYPE_CALLBACK	0x0003
+
+#define CONFIG_OPT_MANDATORY	0x0001
+#define CONFIG_OPT_MULTI	0x0002
+
+typedef struct config_entry {
+	struct config_entry *next;
+	char key[CONFIG_KEY_LEN];
+	u_int8_t type;
+	u_int8_t options;
+	u_int8_t hit;
+	union {
+		struct {
+			char *string;
+			int maxlen;
+		} str;
+		int value;
+		int (*parser)(char *argstr);
+	} u;
+} config_entry_t;
+	
+int config_parse_file(const char *fname);
+int config_register_key(config_entry_t *ce);