dload: avoid using memrchr

This function doesn't exist on OSX. Since there aren't any other
candidates in alpm for which this function would make sense to use,
simply replace the function call with a loop that does the equivalent.

Signed-off-by: Dave Reisner <dreisner@archlinux.org>

1 files changed, 9 insertions, 3 deletions

diff --git a/lib/libalpm/dload.c b/lib/libalpm/dload.c
index e786a3c0..6f0139d1 100644
--- a/lib/libalpm/dload.c
+++ b/lib/libalpm/dload.c
@@ -135,9 +135,15 @@ static int curl_gethost(const char *url, char *buffer)
 		p += 2; /* jump over the found // */
 		hostlen = strcspn(p, "/");
 
-		/* there might be a user:pass@ on the URL. hide it. */
-		q = memrchr(p, '@', hostlen);
-		if(q) {
+		/* there might be a user:pass@ on the URL. hide it. avoid using memrchr()
+		 * for portability concerns. */
+		q = p + hostlen;
+		while(--q > p) {
+			if(*q == '@') {
+				break;
+			}
+		}
+		if(*q == '@' && p != q) {
 			hostlen -= q - p + 1;
 			p = q + 1;
 		}