resolver: omit final dot (root/suppress-search) in canonical name

[musl] / src / passwd / getgr_r.c

diff --git a/src/passwd/getgr_r.c b/src/passwd/getgr_r.c
index 68b867d..f3e8f60 100644 (file)
--- 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;
 }