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| author | Rich Felker <dalias@aerifal.cx> | 2012-07-22 19:42:44 -0400 |
|---|---|---|
| committer | Rich Felker <dalias@aerifal.cx> | 2012-07-22 19:42:44 -0400 |
| commit | efe72c561925a711d8dbc7894ef27fe823205e21 (patch) | |
| tree | c94964ec4861e63ee9fa81991de60e20d9ea3d7e | |
| parent | b4f632bb279724eee4aa25bc4f575a9fde172551 (diff) | |
| download | musl-efe72c561925a711d8dbc7894ef27fe823205e21.tar.gz musl-efe72c561925a711d8dbc7894ef27fe823205e21.tar.xz musl-efe72c561925a711d8dbc7894ef27fe823205e21.zip | |
getaddrinfo /etc/services lookup support
| -rw-r--r-- | src/network/getaddrinfo.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/src/network/getaddrinfo.c b/src/network/getaddrinfo.c index 93c75160..d16b6561 100644 --- a/src/network/getaddrinfo.c +++ b/src/network/getaddrinfo.c @@ -58,7 +58,6 @@ int getaddrinfo(const char *host, const char *serv, const struct addrinfo *hint, union sa sa = {{0}}; unsigned char reply[1024]; int i, j; - //char hostbuf[256]; char line[512]; FILE *f, _f; unsigned char _buf[1024]; @@ -79,10 +78,24 @@ int getaddrinfo(const char *host, const char *serv, const struct addrinfo *hint, port = strtoul(serv, &z, 10); if (!*z && port > 65535) return EAI_SERVICE; if (!port) { + size_t servlen = strlen(serv); + char protname[4]; + if (flags & AI_NUMERICSERV) return EAI_SERVICE; - //f = fopen("/etc/services", "rb"); - 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)) + continue; + if (sscanf(line+servlen, "%lu/%3s", &port, protname) < 2) + continue; + if (strcmp(protname, proto==IPPROTO_UDP ? "udp" : "tcp")) + continue; + break; + } + __fclose_ca(f); + if (feof(f)) return EAI_SERVICE; } port = htons(port); } |