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disallow blank strings as service or host name

This commit is contained in:
Rich Felker 2011-04-20 20:02:35 -04:00
parent d4b5d6e981
commit f1ac8a28d8
1 changed files with 3 additions and 0 deletions
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3
src/network/getaddrinfo.c
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@ -75,6 +75,7 @@ int getaddrinfo(const char *host, const char *serv, const struct addrinfo *hint,
type = proto==IPPROTO_UDP ? SOCK_DGRAM : SOCK_STREAM;
if (serv) {
if (!*serv) return EAI_SERVICE;
port = strtoul(serv, &z, 0);
if (!*z && port > 65535) return EAI_SERVICE;
if (!port) {
@ -107,6 +108,8 @@ int getaddrinfo(const char *host, const char *serv, const struct addrinfo *hint,
return 0;
}
if (!*host) return EAI_NONAME;
/* Try as a numeric address */
if (__ipparse(&sa, family, host) >= 0) {
buf = calloc(sizeof *buf, 1+EXTRA);