fix error return value for cuserid

[musl] / src / network / gethostbyaddr_r.c

diff --git a/src/network/gethostbyaddr_r.c b/src/network/gethostbyaddr_r.c
index cdb1d50..0f1e61a 100644 (file)
--- a/src/network/gethostbyaddr_r.c
+++ b/src/network/gethostbyaddr_r.c
@@ -18,21 +18,20 @@ int gethostbyaddr_r(const void *a, socklen_t l, int af,
        socklen_t sl = af==AF_INET6 ? sizeof sa.sin6 : sizeof sa.sin;
        int i;
 
+       *res = 0;
+
        /* Load address argument into sockaddr structure */
        if (af==AF_INET6 && l==16) memcpy(&sa.sin6.sin6_addr, a, 16);
        else if (af==AF_INET && l==4) memcpy(&sa.sin.sin_addr, a, 4);
        else {
                *err = NO_RECOVERY;
-               return -1;
+               return EINVAL;
        }
 
        /* Align buffer and check for space for pointers and ip address */
        i = (uintptr_t)buf & sizeof(char *)-1;
        if (!i) i = sizeof(char *);
-       if (buflen <= 5*sizeof(char *)-i + l) {
-               errno = ERANGE;
-               return -1;
-       }
+       if (buflen <= 5*sizeof(char *)-i + l) return ERANGE;
        buf += sizeof(char *)-i;
        buflen -= 5*sizeof(char *)-i + l;
 
@@ -51,20 +50,21 @@ int gethostbyaddr_r(const void *a, socklen_t l, int af,
        switch (getnameinfo((void *)&sa, sl, buf, buflen, 0, 0, 0)) {
        case EAI_AGAIN:
                *err = TRY_AGAIN;
-               return -1;
+               return EAGAIN;
        case EAI_OVERFLOW:
-               errno = ERANGE;
+               return ERANGE;
        default:
        case EAI_MEMORY:
        case EAI_SYSTEM:
        case EAI_FAIL:
                *err = NO_RECOVERY;
-               return -1;
+               return errno;
        case 0:
                break;
        }
 
        h->h_addrtype = af;
+       h->h_length = l;
        h->h_name = h->h_aliases[0];
        *res = h;
        return 0;