2 #include <sys/socket.h>
3 #include <netinet/in.h>
10 #define ALIGN (sizeof(struct { char a; char *b; }) - sizeof(char *))
12 int getservbyname_r(const char *name, const char *prots,
13 struct servent *se, char *buf, size_t buflen, struct servent **res)
15 struct service servs[MAXSERVS];
16 int cnt, proto, align;
21 align = -(uintptr_t)buf & ALIGN-1;
22 if (buflen < 2*sizeof(char *)+align)
26 if (!prots) proto = 0;
27 else if (!strcmp(prots, "tcp")) proto = IPPROTO_TCP;
28 else if (!strcmp(prots, "udp")) proto = IPPROTO_UDP;
31 cnt = __lookup_serv(servs, name, proto, 0, 0);
32 if (cnt<0) switch (cnt) {
40 se->s_name = (char *)name;
41 se->s_aliases = (void *)buf;
42 se->s_aliases[0] = se->s_name;
44 se->s_port = htons(servs[0].port);
45 se->s_proto = servs[0].proto == IPPROTO_TCP ? "tcp" : "udp";