third_party/ulib/musl/src/network/getservbyport.c

#define _GNU_SOURCE
#include <netdb.h>

struct servent* getservbyport(int port, const char* prots) {
    static struct servent se;
    static long buf[32 / sizeof(long)];
    struct servent* res;
    if (getservbyport_r(port, prots, &se, (void*)buf, sizeof buf, &res))
        return 0;
    return &se;
}