Bugfixes

* grecs: Upgrade
* src/sg.c (add_source_cidr): Accept /0 mask; improve error detection.

2 files changed, 2 insertions, 1 deletions

diff --git a/grecs b/grecs
-Subproject 9c964ec8a4fe23fef993a1cf7f4563d0c32b68b
+Subproject be602072f517f841ee29a76f8119b030ec3d869
diff --git a/src/sg.c b/src/sg.c
index 68b261c..58249e1 100644
--- a/src/sg.c
+++ b/src/sg.c
@@ -61,9 +61,10 @@ add_source_cidr(char *str, int i)
 		char *q;
 		
 		*p++ = 0;
+		errno = 0;
 		n = strtoul(p, &q, 10);
 		if (*q == 0) {
-			if (n <= 0 || n > 32) {
+			if (errno || n > 32) {
 				p[-1] = '/';
 				die(EX_USAGE, "invalid network mask in %s",
 				    str);