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Diffstat (limited to 'libbb')
-rw-r--r--libbb/xconnect.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/libbb/xconnect.c b/libbb/xconnect.c
index 9758445..f5d7983 100644
--- a/libbb/xconnect.c
+++ b/libbb/xconnect.c
@@ -167,7 +167,8 @@ USE_FEATURE_IPV6(sa_family_t af,)
/* Even uglier parsing of [xx]:nn */
host++;
cp = strchr(host, ']');
- if (!cp || cp[1] != ':') { /* Malformed: must have [xx]:nn */
+ if (!cp || (cp[1] != ':' && cp[1] != '\0')) {
+ /* Malformed: must be [xx]:nn or [xx] */
bb_error_msg("bad address '%s'", org_host);
if (ai_flags & DIE_ON_ERROR)
xfunc_die();
@@ -183,8 +184,11 @@ USE_FEATURE_IPV6(sa_family_t af,)
if (cp) { /* points to ":" or "]:" */
int sz = cp - host + 1;
host = safe_strncpy(alloca(sz), host, sz);
- if (ENABLE_FEATURE_IPV6 && *cp != ':')
+ if (ENABLE_FEATURE_IPV6 && *cp != ':') {
cp++; /* skip ']' */
+ if (*cp == '\0') /* [xx] without port */
+ goto skip;
+ }
cp++; /* skip ':' */
port = bb_strtou(cp, NULL, 10);
if (errno || (unsigned)port > 0xffff) {
@@ -193,6 +197,7 @@ USE_FEATURE_IPV6(sa_family_t af,)
xfunc_die();
return NULL;
}
+ skip: ;
}
memset(&hint, 0 , sizeof(hint));