X-Git-Url: http://nsz.repo.hu/git/?a=blobdiff_plain;f=src%2Fpasswd%2Fgetgr_r.c;h=f3e8f603a32832505538c60e1d210c2e529df9c5;hb=4554f155dd23a65fcdfd39f1d5af8af55ba37694;hp=68b867d88d34dfb08a5eac42680526a365b060f6;hpb=7c5f0a5212127b70486159af80e24fd96262ec88;p=musl

diff --git a/src/passwd/getgr_r.c b/src/passwd/getgr_r.c
index 68b867d8..f3e8f603 100644
--- a/src/passwd/getgr_r.c
+++ b/src/passwd/getgr_r.c
@@ -16,11 +16,11 @@ static int getgr_r(const char *name, gid_t gid, struct group *gr, char *buf, siz
 	pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, &cs);
 
 	rv = __getgr_a(name, gid, gr, &line, &len, &mem, &nmem, res);
-	if (!rv && size < len + (nmem+1)*sizeof(char *) + 32) {
+	if (*res && size < len + (nmem+1)*sizeof(char *) + 32) {
 		*res = 0;
 		rv = ERANGE;
 	}
-	if (!rv) {
+	if (*res) {
 		buf += (16-(uintptr_t)buf)%16;
 		gr->gr_mem = (void *)buf;
 		buf += (nmem+1)*sizeof(char *);
@@ -34,6 +34,7 @@ static int getgr_r(const char *name, gid_t gid, struct group *gr, char *buf, siz
  	free(mem);
  	free(line);
 	pthread_setcancelstate(cs, 0);
+	if (rv) errno = rv;
 	return rv;
 }