jyapayne/musl
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

remove scanf dependency from getaddrinfo /etc/services support

Browse source
This commit is contained in:
Rich Felker 2012-07-22 22:09:45 -04:00
commit 845a5e69fa
1 changed files with 4 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

9
src/network/getaddrinfo.c
View file

@ -79,18 +79,17 @@ int getaddrinfo(const char *host, const char *serv, const struct addrinfo *hint,
if (!*z && port > 65535) return EAI_SERVICE;
if (!port) {
size_t servlen = strlen(serv);
char protname[4];
char *end = line;
if (flags & AI_NUMERICSERV) return EAI_SERVICE;
f = __fopen_rb_ca("/etc/services", &_f, _buf, sizeof _buf);
if (!f) return EAI_SERVICE;
while (fgets(line, sizeof line, f)) {
if (strncmp(line, serv, servlen))
if (strncmp(line, serv, servlen) || !isspace(line[servlen]))
continue;
if (sscanf(line+servlen, "%lu/%3s", &port, protname) < 2)
continue;
if (strcmp(protname, proto==IPPROTO_UDP ? "udp" : "tcp"))
port = strtoul(line+servlen, &end, 10);
if (strncmp(end, proto==IPPROTO_UDP ? "/udp" : "/tcp", 4))
continue;
break;
}