v1.7.5

sock.h

@@ -4,7 +4,7 @@
     #              @@@@@@                                           #
     #              @    @                                           #
     #              @====@                                           #
-    #              @    @           sock.h - v1.7.3                 #
+    #              @    @           sock.h - v1.7.5                 #
     #              @    @             MIT License                   #
     #            @@% .@ @                                           #
     #         @@     @  @    https://github.com/seajee/sock.h       #
@@ -214,10 +214,10 @@ typedef enum {
 } SockType;
 
 typedef struct {
-    SockType type;    // Socket type
+    SockType type;  // Socket type
-    SockAddr addr;    // Socket address
+    SockAddr addr;  // Socket address
-    int fd;           // File descriptor
+    int fd;         // File descriptor
-    int last_errno;  // Last error about this socket
+    int last_errno; // Last error about this socket
 } Sock;
 
 typedef void (*SockThreadCallback)(Sock *sock, void *user_data);
@@ -375,6 +375,7 @@ SockAddrList sock_dns(const char *addr, int port, SockAddrType addr_hint, SockTy
 
     struct addrinfo *res;
     if (getaddrinfo(addr, service, &hints, &res) != 0) {
+        sock_addr_list_free(&list);
         return list;
     }
 
@@ -514,7 +515,7 @@ bool sock_async_accept(Sock *sock, SockThreadCallback fn, void *user_data)
 
     if (sock->type != SOCK_TCP) {
         sock->last_errno = EINVAL;
-        return NULL;
+        return false;
     }
 
     Sock *client = sock_accept(sock);
@@ -555,7 +556,7 @@ bool sock_connect(Sock *sock, SockAddr addr)
 
     if (sock->type != SOCK_TCP) {
         sock->last_errno = EINVAL;
-        return NULL;
+        return false;
     }
 
     if (connect(sock->fd, &addr.sockaddr, addr.len) < 0) {
@@ -578,7 +579,7 @@ ssize_t sock_send(Sock *sock, const void *buf, size_t size)
     }
 
     while (true) {
-        ssize_t n = send(sock->fd, buf, size, 0);
+        ssize_t n = send(sock->fd, buf, size, MSG_NOSIGNAL);
         if (n < 0) {
             if (errno == EINTR) {
                 continue;
@@ -677,7 +678,8 @@ ssize_t sock_sendto(Sock *sock, const void *buf, size_t size, SockAddr addr)
     }
 
     while (true) {
-        ssize_t n = sendto(sock->fd, buf, size, 0, &addr.sockaddr, addr.len);
+        ssize_t n = sendto(sock->fd, buf, size, MSG_NOSIGNAL, &addr.sockaddr,
+                           addr.len);
         if (n < 0) {
             if (errno == EINTR) {
                 continue;
@@ -820,6 +822,9 @@ void sock__convert_addr(SockAddr *addr)
 /*
     Revision history:
 
+        1.7.5 (2025-12-13) Return false instead of NULL when returning a bool;
+                           Fixed memory leak in sock_dns()
+        1.7.4 (2025-12-13) Ignore signals in send and sendto
         1.7.3 (2025-09-20) Changed sock_send_all() signature; drain buffers on
                            sock_close() to prevent data loss
         1.7.2 (2025-09-17) New functions sock_recv_all() and sock_send_all();