Move ast_get_group from res_parking.c to channel.c

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@2263 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 33 insertions, 0 deletions

diff --git a/channel.c b/channel.c
index b05ea7589..e4a572af3 100755
--- a/channel.c
+++ b/channel.c
@@ -2496,3 +2496,36 @@ int ast_tonepair(struct ast_channel *chan, int freq1, int freq2, int duration, i
 	return 0;
 }
 
+unsigned int ast_get_group(char *s)
+{
+	char *copy;
+	char *piece;
+	char *c=NULL;
+	int start=0, finish=0,x;
+	unsigned int group = 0;
+	copy = ast_strdupa(s);
+	if (!copy) {
+		ast_log(LOG_ERROR, "Out of memory\n");
+		return 0;
+	}
+	c = copy;
+	
+	while((piece = strsep(&c, ","))) {
+		if (sscanf(piece, "%d-%d", &start, &finish) == 2) {
+			/* Range */
+		} else if (sscanf(piece, "%d", &start)) {
+			/* Just one */
+			finish = start;
+		} else {
+			ast_log(LOG_ERROR, "Syntax error parsing '%s' at '%s'.  Using '0'\n", s,piece);
+			return 0;
+		}
+		for (x=start;x<=finish;x++) {
+			if ((x > 31) || (x < 0)) {
+				ast_log(LOG_WARNING, "Ignoring invalid group %d\n", x);
+			} else
+				group |= (1 << x);
+		}
+	}
+	return group;
+}