fix getaddrinfo to accept port 0 (zero)

[musl] / src / network / getaddrinfo.c

diff --git a/src/network/getaddrinfo.c b/src/network/getaddrinfo.c
index b9e562f..b341912 100644 (file)
--- a/src/network/getaddrinfo.c
+++ b/src/network/getaddrinfo.c
@@ -76,8 +76,7 @@ int getaddrinfo(const char *restrict host, const char *restrict serv, const stru
        if (serv) {
                if (!*serv) return EAI_SERVICE;
                port = strtoul(serv, &z, 10);
-               if (!*z && port > 65535) return EAI_SERVICE;
-               if (!port) {
+               if (*z) {
                        size_t servlen = strlen(serv);
                        char *end = line;
 
@@ -96,6 +95,7 @@ int getaddrinfo(const char *restrict host, const char *restrict serv, const stru
                        __fclose_ca(f);
                        if (feof(f)) return EAI_SERVICE;
                }
+               if (port > 65535) return EAI_SERVICE;
                port = htons(port);
        }