Remove code for protocols we don't properly support. (Most of this could

[oweals/busybox.git] / networking / tftp.c

diff --git a/networking/tftp.c b/networking/tftp.c
index cad0dcc456b6d36e402ff55f8bb24ba212e1c86a..b830f18a58d5351ddfe5ec6b19100804f4d427e5 100644 (file)
--- a/networking/tftp.c
+++ b/networking/tftp.c
@@ -1,35 +1,23 @@
-/* ------------------------------------------------------------------------- */
-/* tftp.c                                                                    */
-/*                                                                           */
-/* A simple tftp client for busybox.                                         */
-/* Tries to follow RFC1350.                                                  */
-/* Only "octet" mode supported.                                              */
-/* Optional blocksize negotiation (RFC2347 + RFC2348)                        */
-/*                                                                           */
-/* Copyright (C) 2001 Magnus Damm <damm@opensource.se>                       */
-/*                                                                           */
-/* Parts of the code based on:                                               */
-/*                                                                           */
-/* atftp:  Copyright (C) 2000 Jean-Pierre Lefebvre <helix@step.polymtl.ca>   */
-/*                        and Remi Lefebvre <remi@debian.org>                */
-/*                                                                           */
-/* utftp:  Copyright (C) 1999 Uwe Ohse <uwe@ohse.de>                         */
-/*                                                                           */
-/* This program is free software; you can redistribute it and/or modify      */
-/* it under the terms of the GNU General Public License as published by      */
-/* the Free Software Foundation; either version 2 of the License, or         */
-/* (at your option) any later version.                                       */
-/*                                                                           */
-/* This program is distributed in the hope that it will be useful,           */
-/* but WITHOUT ANY WARRANTY; without even the implied warranty of            */
-/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU          */
-/* General Public License for more details.                                  */
-/*                                                                           */
-/* You should have received a copy of the GNU General Public License         */
-/* along with this program; if not, write to the Free Software               */
-/* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA   */
-/*                                                                           */
-/* ------------------------------------------------------------------------- */
+/* vi: set sw=4 ts=4: */
+/* -------------------------------------------------------------------------
+ * tftp.c
+ *
+ * A simple tftp client for busybox.
+ * Tries to follow RFC1350.
+ * Only "octet" mode supported.
+ * Optional blocksize negotiation (RFC2347 + RFC2348)
+ *
+ * Copyright (C) 2001 Magnus Damm <damm@opensource.se>
+ *
+ * Parts of the code based on:
+ *
+ * atftp:  Copyright (C) 2000 Jean-Pierre Lefebvre <helix@step.polymtl.ca>
+ *                        and Remi Lefebvre <remi@debian.org>
+ *
+ * utftp:  Copyright (C) 1999 Uwe Ohse <uwe@ohse.de>
+ *
+ * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
+ * ------------------------------------------------------------------------- */
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -87,13 +75,13 @@ static const char * const tftp_bb_error_msg[] = {
 
 static int tftp_blocksize_check(int blocksize, int bufsize)
 {
-        /* Check if the blocksize is valid:
+       /* Check if the blocksize is valid:
         * RFC2348 says between 8 and 65464,
         * but our implementation makes it impossible
         * to use blocksizes smaller than 22 octets.
         */
 
-        if ((bufsize && (blocksize > bufsize)) ||
+       if ((bufsize && (blocksize > bufsize)) ||
            (blocksize < 8) || (blocksize > 65464)) {
                bb_error_msg("bad blocksize");
                return 0;
@@ -104,7 +92,7 @@ static int tftp_blocksize_check(int blocksize, int bufsize)
 
 static char *tftp_option_get(char *buf, int len, char *option)
 {
-        int opt_val = 0;
+       int opt_val = 0;
        int opt_found = 0;
        int k;
 
@@ -177,7 +165,7 @@ static inline int tftp(const int cmd, const struct hostent *host,
 
        tftp_bufsize += 4;
 
-       if ((socketfd = socket(PF_INET, SOCK_DGRAM, 0)) < 0) {
+       if ((socketfd = socket(PF_INET, SOCK_DGRAM, 0)) < 0) { /* bb_xsocket? */
                bb_perror_msg("socket");
                return EXIT_FAILURE;
        }
@@ -216,7 +204,7 @@ static inline int tftp(const int cmd, const struct hostent *host,
 
                if ((cmd_get && (opcode == TFTP_RRQ)) ||
                        (cmd_put && (opcode == TFTP_WRQ))) {
-                        int too_long = 0;
+                       int too_long = 0;
 
                        /* see if the filename fits into buf */
                        /* and fill in packet                */
@@ -418,7 +406,7 @@ static inline int tftp(const int cmd, const struct hostent *host,
 
                                 if (res) {
                                         int blksize = atoi(res);
-                       
+
                                         if (tftp_blocksize_check(blksize,
                                                           tftp_bufsize - 4)) {
 
@@ -452,7 +440,7 @@ static inline int tftp(const int cmd, const struct hostent *host,
                if (cmd_get && (opcode == TFTP_DATA)) {
 
                        if (tmp == block_nr) {
-                       
+
                                len = bb_full_write(localfd, &buf[4], len - 4);
 
                                if (len < 0) {
@@ -496,7 +484,7 @@ static inline int tftp(const int cmd, const struct hostent *host,
 #ifdef CONFIG_FEATURE_CLEAN_UP
        close(socketfd);
 
-        free(buf);
+       free(buf);
 #endif
 
        return finished ? EXIT_SUCCESS : EXIT_FAILURE;
@@ -530,7 +518,7 @@ int tftp_main(int argc, char **argv)
 #define GET_COMPL ":g"
 #else
 #define GET
-#define GET_COMP
+#define GET_COMPL
 #endif
 
 #ifdef CONFIG_FEATURE_TFTP_PUT
@@ -549,8 +537,8 @@ int tftp_main(int argc, char **argv)
        /* XXX: may be should #error ? */
 #endif
 
-       
-       cmd = bb_getopt_ulflags(argc, argv, GET PUT "l:r:" BS, 
+
+       cmd = bb_getopt_ulflags(argc, argv, GET PUT "l:r:" BS,
                                &localfile, &remotefile BS_ARG);
 #ifdef CONFIG_FEATURE_TFTP_BLOCKSIZE
        if(sblocksize) {