net.c: Improve documentation of struct crypt_data.

[paraslash.git] / net.c

diff --git a/net.c b/net.c
index cb504f3cce860f26eb8dd53d6c3c0a1d33424f24..bc7d234bfa2ec01619d8bc698dfb2841053b0eca 100644 (file)
--- a/net.c
+++ b/net.c
@@ -12,21 +12,23 @@
 #include "error.h"
 
 
-/** holds information about one encrypted connection */
+/** Information about one encrypted connection. */
 struct crypt_data {
-       /** function used to decrypt received data */
+       /** Function used to decrypt received data. */
        crypt_function *recv;
-       /** function used to encrypt data to be sent */
+       /** Function used to encrypt data to be sent. */
        crypt_function *send;
-       /** context-dependent data, passed to \a recv() and \a send() */
+       /**
+        * Context-dependent data (crypt keys), passed verbatim to the above
+        * crypt functions.
+        */
        void *private_data;
 };
-/** array holding per fd crypt data per */
+/** Array holding per fd crypt data. */
 static struct crypt_data *crypt_data_array;
-/** current size of the crypt data array */
+/** Current size of the crypt data array. */
 static unsigned cda_size = 0;
 
-
 /**
  * activate encryption for one file descriptor
  *
@@ -394,18 +396,22 @@ int create_local_socket(const char *name, struct sockaddr_un *unix_addr,
 {
        int fd, ret;
 
-       fd = socket(PF_UNIX, SOCK_STREAM, 0);
-       if (fd < 0)
-               return -E_SOCKET;
-//     unlink(name);
        ret = init_unix_addr(unix_addr, name);
        if (ret < 0)
                return ret;
+       fd = socket(PF_UNIX, SOCK_STREAM, 0);
+       if (fd < 0)
+               return -E_SOCKET;
+       ret = -E_BIND;
        if (bind(fd, (struct sockaddr *) unix_addr, UNIX_PATH_MAX) < 0)
-               return -E_BIND;
+               goto err;
+       ret = -E_CHMOD;
        if (chmod(name, mode) < 0)
-               return -E_CHMOD;
+               goto err;
        return fd;
+err:
+       close(fd);
+       return ret;
 }
 
 #ifndef HAVE_UCRED