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annotate dbmulti.c @ 1820:e9854650d45b

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Clarify help text for dropbear -e environment option
author Matt Johnston <matt@ucc.asn.au>
date Thu, 19 Aug 2021 23:17:34 +0800
parents 11f645c3715b
children 0dcc5b0d93fa
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * Dropbear SSH
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3 *
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4 * Copyright (c) 2002,2003 Matt Johnston
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5 * All rights reserved.
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6 *
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7 * Permission is hereby granted, free of charge, to any person obtaining a copy
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8 * of this software and associated documentation files (the "Software"), to deal
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9 * in the Software without restriction, including without limitation the rights
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10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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11 * copies of the Software, and to permit persons to whom the Software is
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12 * furnished to do so, subject to the following conditions:
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13 *
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14 * The above copyright notice and this permission notice shall be included in
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15 * all copies or substantial portions of the Software.
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16 *
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17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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20 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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23 * SOFTWARE. */
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24
4
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25 #include "includes.h"
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26
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27 /* definitions are cleanest if we just put them here */
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28 int dropbear_main(int argc, char ** argv);
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29 int cli_main(int argc, char ** argv);
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30 int dropbearkey_main(int argc, char ** argv);
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31 int dropbearconvert_main(int argc, char ** argv);
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32 int scp_main(int argc, char ** argv);
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33
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34 static int runprog(const char *progname, int argc, char ** argv, int *match) {
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35 *match = DROPBEAR_SUCCESS;
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36
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37 #ifdef DBMULTI_dropbear
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38 if (strcmp(progname, "dropbear") == 0) {
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39 return dropbear_main(argc, argv);
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40 }
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41 #endif
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42 #ifdef DBMULTI_dbclient
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43 if (strcmp(progname, "dbclient") == 0
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44 || strcmp(progname, "ssh") == 0) {
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45 return cli_main(argc, argv);
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46 }
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47 #endif
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48 #ifdef DBMULTI_dropbearkey
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49 if (strcmp(progname, "dropbearkey") == 0) {
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50 return dropbearkey_main(argc, argv);
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51 }
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52 #endif
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53 #ifdef DBMULTI_dropbearconvert
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54 if (strcmp(progname, "dropbearconvert") == 0) {
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55 return dropbearconvert_main(argc, argv);
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56 }
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57 #endif
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58 #ifdef DBMULTI_scp
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59 if (strcmp(progname, "scp") == 0) {
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60 return scp_main(argc, argv);
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61 }
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62 #endif
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63 *match = DROPBEAR_FAILURE;
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64 return 1;
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65 }
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66
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67 int main(int argc, char ** argv) {
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68 int i;
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69 for (i = 0; i < 2; i++) {
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70 /* Try symlink first, then try as an argument eg "dropbearmulti dbclient host ..." */
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71 if (argc > i) {
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72 int match, res;
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73 /* figure which form we're being called as */
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74 const char* progname = basename(argv[i]);
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75 res = runprog(progname, argc-i, &argv[i], &match);
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76 if (match == DROPBEAR_SUCCESS) {
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77 return res;
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78 }
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79 }
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80 }
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81
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82 fprintf(stderr, "Dropbear SSH multi-purpose v%s\n"
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83 "Make a symlink pointing at this binary with one of the\n"
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84 "following names or run 'dropbearmulti <command>'.\n"
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85 #ifdef DBMULTI_dropbear
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86 "'dropbear' - the Dropbear server\n"
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87 #endif
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88 #ifdef DBMULTI_dbclient
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89 "'dbclient' or 'ssh' - the Dropbear client\n"
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90 #endif
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91 #ifdef DBMULTI_dropbearkey
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92 "'dropbearkey' - the key generator\n"
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93 #endif
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94 #ifdef DBMULTI_dropbearconvert
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95 "'dropbearconvert' - the key converter\n"
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96 #endif
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97 #ifdef DBMULTI_scp
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98 "'scp' - secure copy\n"
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99 #endif
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100 ,
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101 DROPBEAR_VERSION);
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102 exit(1);
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103
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104 }