string splitting function

src/conf.c

@@ -842,4 +842,52 @@ int conf_isset(char *section, char *key) {
     return retval;
 }
 
+/**
+ * split a string on delimiter boundaries, filling
+ * a string-pointer array.
+ *
+ * The user must free both the first element in the array,
+ * and the array itself.
+ *
+ * @param s string to split
+ * @param delimiters boundaries to split on
+ * @param argvp an argv array to be filled
+ * @returns number of tokens
+ */
+int _conf_split(char *s, char *delimiters, char ***argvp) {
+    int i;
+    int numtokens;
+    const char *snew;
+    char *t;
+    char *tokptr;
 
+    if ((s == NULL) || (delimiters == NULL) || (argvp == NULL))
+        return -1;
+    *argvp = NULL;
+    snew = s + strspn(s, delimiters);
+    if ((t = malloc(strlen(snew) + 1)) == NULL)
+        return -1;
+
+    strcpy(t, snew);
+    numtokens = 0;
+    tokptr = NULL;
+    while(strtok_r(t,delimiters,&tokptr) != NULL)
+        numtokens++;
+
+    if ((*argvp = malloc((numtokens + 1)*sizeof(char *))) == NULL) {
+        free(t);
+        return -1;
+    }
+
+    if (numtokens == 0)
+        free(t);
+    else {
+        strcpy(t, snew);
+        tokptr = NULL;
+        for (i = 0; i < numtokens; i++)
+            *((*argvp) + i) = strtok_r(t, delimiters, &tokptr);
+    }
+
+    *((*argvp) + numtokens) = NULL;
+    return numtokens;
+}