Increased the size of the sun_path field in a sockaddr_un structure to match the standard of 108 characters. Modified the bind/connect/sendto to adjust to this change

libc/sock/bind.c

@@ -41,10 +41,10 @@ int bind(int fd, const void *addr, uint32_t addrsize) {
       if (!IsBsd()) {
         return sys_bind(fd, addr, addrsize);
       } else {
-        struct sockaddr_in_bsd addr2;
+        char addr2[sizeof(struct sockaddr_un_bsd)]; /* sockaddr_un_bsd is the largest */
-        assert(sizeof(struct sockaddr_in) == sizeof(struct sockaddr_in_bsd));
+        assert(addrsize <= sizeof(addr2));
-        memcpy(&addr2, addr, sizeof(struct sockaddr_in));
+        memcpy(&addr2, addr, addrsize);
-        sockaddr2bsd(&addr2);
+        sockaddr2bsd(&addr2[0]);
         return sys_bind(fd, &addr2, addrsize);
       }
     } else if (__isfdkind(fd, kFdSocket)) {

libc/sock/connect-sysv.c

@@ -23,14 +23,13 @@
 #include "libc/sysv/errfuns.h"
 
 int sys_connect(int fd, const void *addr, uint32_t addrsize) {
-  if (addrsize != sizeof(struct sockaddr_in)) return einval();
   if (!IsBsd()) {
     return __sys_connect(fd, addr, addrsize);
   } else {
-    struct sockaddr_in_bsd addr2;
+    char addr2[sizeof(struct sockaddr_un_bsd)]; /* sockaddr_un_bsd is the largest */
-    assert(sizeof(struct sockaddr_in) == sizeof(struct sockaddr_in_bsd));
+    assert(addrsize <= sizeof(addr2));
-    memcpy(&addr2, addr, sizeof(struct sockaddr_in));
+    memcpy(&addr2, addr, addrsize);
-    sockaddr2bsd(&addr2);
+    sockaddr2bsd(&addr2[0]);
-    return sys_connect(fd, &addr2, addrsize);
+    return __sys_connect(fd, &addr2, addrsize);
   }
 }

libc/sock/internal.h

@@ -49,7 +49,7 @@ struct msghdr_bsd {
 struct sockaddr_un_bsd {
   uint8_t sun_len; /* sockaddr len including NUL on freebsd but excluding it on openbsd/xnu */
   uint8_t sun_family;
-  char    sun_path[14];
+  char    sun_path[108];
 };
 
 struct SockFd {

libc/sock/sendto.c

@@ -47,16 +47,15 @@
  */
 ssize_t sendto(int fd, const void *buf, size_t size, uint32_t flags,
                const void *opt_addr, uint32_t addrsize) {
-  assert(sizeof(struct sockaddr_in) == sizeof(struct sockaddr_in_bsd));
   if (!IsWindows()) {
     if (!IsBsd() || !opt_addr) {
       return sys_sendto(fd, buf, size, flags, opt_addr, addrsize);
     } else {
-      struct sockaddr_in_bsd addr2;
+      char addr2[sizeof(struct sockaddr_un_bsd)]; /* sockaddr_un_bsd is the largest */
-      if (addrsize != sizeof(addr2)) return einval();
+      if (addrsize > sizeof(addr2)) return einval();
-      memcpy(&addr2, opt_addr, sizeof(struct sockaddr_in));
+      memcpy(&addr2, opt_addr, addrsize);
-      sockaddr2bsd(&addr2);
+      sockaddr2bsd(&addr2[0]);
-      return sys_sendto(fd, buf, size, flags, &addr2, addrsize);
+      return sys_sendto(fd, buf, size, flags, &addr2[0], addrsize);
     }
   } else if (__isfdkind(fd, kFdSocket)) {
     return sys_sendto_nt(&g_fds.p[fd], (struct iovec[]){{buf, size}}, 1, flags,

libc/sock/sock.h

@@ -42,7 +42,7 @@ struct sockaddr_in {   /* Linux+NT ABI */
 
 struct sockaddr_un {
   uint16_t sun_family;  /* AF_UNIX */
-  char     sun_path[14];/* path */
+  char     sun_path[108];/* path */
 };
 
 struct sockaddr_storage {

libc/sock/syslog.c

@@ -75,7 +75,12 @@ static void __openlog() {
     log_fd = RegisterEventSourceA(NULL, log_ident);
   } else {
     log_fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0);
-    if (log_fd >= 0) connect(log_fd, (void *)&log_addr, sizeof(log_addr));
+    if (log_fd >= 0) {
+        int rc = connect(log_fd, (void *)&log_addr, sizeof(log_addr));
+        if (rc < 0) {
+            printf("ERR: connect(openlog) failed: %s (errno=%d)\n", strerror(errno), errno);
+        }
+    }
   }
 }
 
@@ -147,6 +152,8 @@ void vsyslog(int priority, const char *message, va_list ap) {
        * - First try to send it to syslogd
        * - If fails and LOG_CONS is provided, writes to /dev/console
        */
+     
+#if 0
       if (send(log_fd, buf, l, 0) < 0 && (!is_lost_conn(errno)
             || connect(log_fd, (void *)&log_addr, sizeof(log_addr)) < 0
             || send(log_fd, buf, l, 0) < 0)
@@ -157,6 +164,23 @@ void vsyslog(int priority, const char *message, va_list ap) {
           close(fd);
         }
       }
+#else
+      int rc = send(log_fd, buf, l, 0);
+      if (rc < 0) {
+        printf("ERR: send(1) failed: %s (errno=%d)\n", strerror(errno), errno);
+        if (!is_lost_conn(errno)) {
+          rc = connect(log_fd, (void *)&log_addr, sizeof(log_addr));
+          if (rc < 0) {
+            printf("ERR: connect(syslog) failed: %s (errno=%d)\n", strerror(errno), errno);
+          } else {
+            rc = send(log_fd, buf, l, 0);
+            if (rc < 0) {
+              printf("ERR: send(2) failed: %s (errno=%d)\n", strerror(errno), errno);
+            }
+          }
+        }
+      }
+#endif
     } else {
       uint16_t evtType;
       uint32_t evtID;