tcp.h: add SOL_TCP, analoguous to udp.h

[musl] / src / network / __dns.c

diff --git a/src/network/__dns.c b/src/network/__dns.c
index 0d4f47e..372a587 100644 (file)
--- a/src/network/__dns.c
+++ b/src/network/__dns.c
@@ -29,7 +29,7 @@ int __dns_doqueries(unsigned char *dest, const char *name, int *rr, int rrcnt)
        time_t t0 = time(0);
        int fd;
        FILE *f, _f;
-       unsigned char _buf[64];
+       unsigned char _buf[256];
        char line[64], *s, *z;
        union {
                struct sockaddr_in sin;
@@ -89,18 +89,17 @@ int __dns_doqueries(unsigned char *dest, const char *name, int *rr, int rrcnt)
                sl = sizeof sa.sin;
        }
 
+       /* Get local address and open/bind a socket */
+       sa.sin.sin_family = family;
+       fd = socket(family, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, 0);
+
        pthread_cleanup_push(cleanup, (void *)(intptr_t)fd);
        pthread_setcancelstate(cs, 0);
 
-       /* Get local address and open/bind a socket */
-       sa.sin.sin_family = family;
-       fd = socket(family, SOCK_DGRAM, 0);
        if (bind(fd, (void *)&sa, sl) < 0) {
                errcode = EAI_SYSTEM;
                goto out;
        }
-       /* Nonblocking to work around Linux UDP select bug */
-       fcntl(fd, F_SETFL, fcntl(fd, F_GETFL, 0) | O_NONBLOCK);
 
        pfd.fd = fd;
        pfd.events = POLLIN;