Mercurial > hg > mercurial-crew-with-dirclash

annotate contrib/hgsh/hgsh.c @ 5483:0c43f87baba3 default tip

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Fix file-changed-to-dir and dir-to-file commits (issue660). Allow adding to dirstate files that clash with previously existing but marked for removal. Protect from reintroducing clashes by revert. This change doesn't address related issues with update. Current workaround is to do "clean" update by manually removing conflicting files/dirs from working directory.
author Maxim Dounin <mdounin@mdounin.ru>
date Sat, 27 Oct 2007 16:27:55 +0400
parents ea7b982b6c08
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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1 /*
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2 * hgsh.c - restricted login shell for mercurial
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3 *
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4 * Copyright 2006 Vadim Gelfer <vadim.gelfer@gmail.com>
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5 *
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6 * This software may be used and distributed according to the terms of the
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7 * GNU General Public License, incorporated herein by reference.
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8 *
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9 * this program is login shell for dedicated mercurial user account. it
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10 * only allows few actions:
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11 *
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12 * 1. run hg in server mode on specific repository. no other hg commands
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13 * are allowed. we try to verify that repo to be accessed exists under
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14 * given top-level directory.
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15 *
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16 * 2. (optional) forward ssh connection from firewall/gateway machine to
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17 * "real" mercurial host, to let users outside intranet pull and push
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18 * changes through firewall.
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19 *
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20 * 3. (optional) run normal shell, to allow to "su" to mercurial user, use
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21 * "sudo" to run programs as that user, or run cron jobs as that user.
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22 *
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23 * only tested on linux yet. patches for non-linux systems welcome.
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24 */
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25
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26 #ifndef _GNU_SOURCE
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27 #define _GNU_SOURCE /* for asprintf */
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28 #endif
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29
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30 #include <stdio.h>
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31 #include <stdlib.h>
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32 #include <string.h>
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33 #include <sys/stat.h>
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34 #include <sys/types.h>
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35 #include <sysexits.h>
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36 #include <unistd.h>
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37
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38 /*
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39 * user config.
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40 *
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41 * if you see a hostname below, just use first part of hostname. example,
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42 * if you have host named foo.bar.com, use "foo".
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43 */
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44
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45 /*
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46 * HG_GATEWAY: hostname of gateway/firewall machine that people outside your
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47 * intranet ssh into if they need to ssh to other machines. if you do not
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48 * have such machine, set to NULL.
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49 */
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50 #ifndef HG_GATEWAY
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51 #define HG_GATEWAY "gateway"
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52 #endif
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53
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54 /*
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55 * HG_HOST: hostname of mercurial server. if any machine is allowed, set to
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56 * NULL.
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57 */
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58 #ifndef HG_HOST
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59 #define HG_HOST "mercurial"
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60 #endif
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61
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62 /*
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63 * HG_USER: username to log in from HG_GATEWAY to HG_HOST. if gateway and
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64 * host username are same, set to NULL.
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65 */
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66 #ifndef HG_USER
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67 #define HG_USER "hg"
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68 #endif
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69
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70 /*
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71 * HG_ROOT: root of tree full of mercurial repos. if you do not want to
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72 * validate location of repo when someone is try to access, set to NULL.
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73 */
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74 #ifndef HG_ROOT
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75 #define HG_ROOT "/home/hg/repos"
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76 #endif
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77
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78 /*
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79 * HG: path to the mercurial executable to run.
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80 */
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81 #ifndef HG
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82 #define HG "/home/hg/bin/hg"
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83 #endif
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84
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85 /*
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86 * HG_SHELL: shell to use for actions like "sudo" and "su" access to
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87 * mercurial user, and cron jobs. if you want to make these things
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88 * impossible, set to NULL.
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89 */
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90 #ifndef HG_SHELL
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91 #define HG_SHELL NULL
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92 // #define HG_SHELL "/bin/bash"
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93 #endif
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94
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95 /*
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96 * HG_HELP: some way for users to get support if they have problem. if they
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97 * should not get helpful message, set to NULL.
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98 */
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99 #ifndef HG_HELP
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100 #define HG_HELP "please contact support@example.com for help."
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101 #endif
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102
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103 /*
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104 * SSH: path to ssh executable to run, if forwarding from HG_GATEWAY to
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105 * HG_HOST. if you want to use rsh instead (why?), you need to modify
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106 * arguments it is called with. see forward_through_gateway.
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107 */
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108 #ifndef SSH
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109 #define SSH "/usr/bin/ssh"
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110 #endif
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111
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112 /*
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113 * tell whether to print command that is to be executed. useful for
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114 * debugging. should not interfere with mercurial operation, since
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115 * mercurial only cares about stdin and stdout, and this prints to stderr.
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116 */
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117 static const int debug = 0;
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118
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119 static void print_cmdline(int argc, char **argv)
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120 {
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121 FILE *fp = stderr;
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122 int i;
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123
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124 fputs("command: ", fp);
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125
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126 for (i = 0; i < argc; i++) {
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127 char *spc = strpbrk(argv[i], " \t\r\n");
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128 if (spc) {
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129 fputc('\'', fp);
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130 }
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131 fputs(argv[i], fp);
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132 if (spc) {
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133 fputc('\'', fp);
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134 }
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135 if (i < argc - 1) {
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136 fputc(' ', fp);
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137 }
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138 }
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139 fputc('\n', fp);
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140 fflush(fp);
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141 }
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parents:
diff changeset
142
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
143 static void usage(const char *reason, int exitcode)
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
144 {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
145 char *hg_help = HG_HELP;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
146
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
147 if (reason) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
148 fprintf(stderr, "*** Error: %s.\n", reason);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
149 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
150 fprintf(stderr, "*** This program has been invoked incorrectly.\n");
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
151 if (hg_help) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
152 fprintf(stderr, "*** %s\n", hg_help);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
153 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
154 exit(exitcode ? exitcode : EX_USAGE);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
155 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
156
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
157 /*
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
158 * run on gateway host to make another ssh connection, to "real" mercurial
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
159 * server. it sends its command line unmodified to far end.
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
160 *
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
161 * never called if HG_GATEWAY is NULL.
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
162 */
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
163 static void forward_through_gateway(int argc, char **argv)
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
164 {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
165 char *ssh = SSH;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
166 char *hg_host = HG_HOST;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
167 char *hg_user = HG_USER;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
168 char **nargv = alloca((10 + argc) * sizeof(char *));
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
169 int i = 0, j;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
170
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
171 nargv[i++] = ssh;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
172 nargv[i++] = "-q";
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
173 nargv[i++] = "-T";
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
174 nargv[i++] = "-x";
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
175 if (hg_user) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
176 nargv[i++] = "-l";
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
177 nargv[i++] = hg_user;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
178 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
179 nargv[i++] = hg_host;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
180
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
181 /*
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
182 * sshd called us with added "-c", because it thinks we are a shell.
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
183 * drop it if we find it.
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
184 */
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
185 j = 1;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
186 if (j < argc && strcmp(argv[j], "-c") == 0) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
187 j++;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
188 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
189
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
190 for (; j < argc; i++, j++) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
191 nargv[i] = argv[j];
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
192 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
193 nargv[i] = NULL;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
194
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
195 if (debug) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
196 print_cmdline(i, nargv);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
197 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
198
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
199 execv(ssh, nargv);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
200 perror(ssh);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
201 exit(EX_UNAVAILABLE);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
202 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
203
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
204 /*
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
205 * run shell. let administrator "su" to mercurial user's account to do
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
206 * administrative works.
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
207 *
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
208 * never called if HG_SHELL is NULL.
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
209 */
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
210 static void run_shell(int argc, char **argv)
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
211 {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
212 char *hg_shell = HG_SHELL;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
213 char **nargv;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
214 char *c;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
215 int i;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
216
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
217 nargv = alloca((argc + 3) * sizeof(char *));
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
218 c = strrchr(hg_shell, '/');
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
219
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
220 /* tell "real" shell it is login shell, if needed. */
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
221
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
222 if (argv[0][0] == '-' && c) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
223 nargv[0] = strdup(c);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
224 if (nargv[0] == NULL) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
225 perror("malloc");
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
226 exit(EX_OSERR);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
227 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
228 nargv[0][0] = '-';
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
229 } else {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
230 nargv[0] = hg_shell;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
231 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
232
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
233 for (i = 1; i < argc; i++) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
234 nargv[i] = argv[i];
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
235 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
236 nargv[i] = NULL;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
237
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
238 if (debug) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
239 print_cmdline(i, nargv);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
240 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
241
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
242 execv(hg_shell, nargv);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
243 perror(hg_shell);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
244 exit(EX_OSFILE);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
245 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
246
2602
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
247 enum cmdline {
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
248 hg_init,
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
249 hg_serve,
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
250 };
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
251
5115
ea7b982b6c08 Remove trailing spaces
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4419
diff changeset
252
2341
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
253 /*
4419
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
254 * attempt to verify that a directory is really a hg repo, by testing
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
255 * for the existence of a subdirectory.
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
256 */
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
257 static int validate_repo(const char *repo_root, const char *subdir)
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
258 {
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
259 char *abs_path;
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
260 struct stat st;
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
261 int ret;
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
262
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
263 if (asprintf(&abs_path, "%s.hg/%s", repo_root, subdir) == -1) {
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
264 ret = -1;
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
265 goto bail;
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
266 }
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
267
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
268 /* verify that we really are looking at valid repo. */
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
269
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
270 if (stat(abs_path, &st) == -1) {
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
271 ret = 0;
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
272 } else {
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
273 ret = 1;
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
274 }
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
275
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
276 bail:
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
277 return ret;
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
278 }
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
279
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
280 /*
2341
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
281 * paranoid wrapper, runs hg executable in server mode.
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
282 */
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
283 static void serve_data(int argc, char **argv)
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
284 {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
285 char *hg_root = HG_ROOT;
2602
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
286 char *repo, *repo_root;
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
287 enum cmdline cmd;
2341
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
288 char *nargv[6];
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
289 size_t repolen;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
290 int i;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
291
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
292 /*
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
293 * check argv for looking okay. we should be invoked with argv
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
294 * resembling like this:
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
295 *
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
296 * hgsh
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
297 * -c
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
298 * hg -R some/path serve --stdio
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
299 *
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
300 * the "-c" is added by sshd, because it thinks we are login shell.
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
301 */
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
302
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
303 if (argc != 3) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
304 goto badargs;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
305 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
306
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
307 if (strcmp(argv[1], "-c") != 0) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
308 goto badargs;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
309 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
310
2602
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
311 if (sscanf(argv[2], "hg init %as", &repo) == 1) {
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
312 cmd = hg_init;
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
313 }
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
314 else if (sscanf(argv[2], "hg -R %as serve --stdio", &repo) == 1) {
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
315 cmd = hg_serve;
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
316 } else {
2341
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
317 goto badargs;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
318 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
319
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
320 repolen = repo ? strlen(repo) : 0;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
321
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
322 if (repolen == 0) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
323 goto badargs;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
324 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
325
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
326 if (hg_root) {
2602
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
327 if (asprintf(&repo_root, "%s/%s/", hg_root, repo) == -1) {
2341
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
328 goto badargs;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
329 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
330
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
331 /*
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
332 * attempt to stop break out from inside the repository tree. could
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
333 * do something more clever here, because e.g. we could traverse a
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
334 * symlink that looks safe, but really breaks us out of tree.
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
335 */
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
336
2602
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
337 if (strstr(repo_root, "/../") != NULL) {
2341
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
338 goto badargs;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
339 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
340
2602
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
341 /* only hg init expects no repo. */
2341
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
342
2602
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
343 if (cmd != hg_init) {
4419
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
344 int valid;
5115
ea7b982b6c08 Remove trailing spaces
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4419
diff changeset
345
4419
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
346 valid = validate_repo(repo_root, "data");
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
347
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
348 if (valid == -1) {
2602
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
349 goto badargs;
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
350 }
5115
ea7b982b6c08 Remove trailing spaces
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4419
diff changeset
351
4419
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
352 if (valid == 0) {
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
353 valid = validate_repo(repo_root, "store");
2602
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
354
4419
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
355 if (valid == -1) {
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
356 goto badargs;
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
357 }
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
358 }
5115
ea7b982b6c08 Remove trailing spaces
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4419
diff changeset
359
4419
59ddd43f609f contrib/hgsh: Check for .hg/store as well as .hg/data.
Bryan O'Sullivan <bos@serpentine.com>
parents: 2602
diff changeset
360 if (valid == 0) {
2602
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
361 perror(repo);
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
362 exit(EX_DATAERR);
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
363 }
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
364 }
2341
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
365
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
366 if (chdir(hg_root) == -1) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
367 perror(hg_root);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
368 exit(EX_SOFTWARE);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
369 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
370 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
371
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
372 i = 0;
2602
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
373
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
374 switch (cmd) {
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
375 case hg_serve:
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
376 nargv[i++] = HG;
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
377 nargv[i++] = "-R";
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
378 nargv[i++] = repo;
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
379 nargv[i++] = "serve";
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
380 nargv[i++] = "--stdio";
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
381 break;
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
382 case hg_init:
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
383 nargv[i++] = HG;
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
384 nargv[i++] = "init";
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
385 nargv[i++] = repo;
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
386 break;
9cbeef33eaa3 contrib/hgsh: make to work with remote clone over ssh.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents: 2341
diff changeset
387 }
5115
ea7b982b6c08 Remove trailing spaces
Thomas Arendsen Hein <thomas@intevation.de>
parents: 4419
diff changeset
388
2341
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
389 nargv[i] = NULL;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
390
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
391 if (debug) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
392 print_cmdline(i, nargv);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
393 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
394
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
395 execv(HG, nargv);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
396 perror(HG);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
397 exit(EX_UNAVAILABLE);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
398
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
399 badargs:
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
400 /* print useless error message. */
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
401
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
402 usage("invalid arguments", EX_DATAERR);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
403 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
404
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
405 int main(int argc, char **argv)
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
406 {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
407 char host[1024];
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
408 char *c;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
409
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
410 if (gethostname(host, sizeof(host)) == -1) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
411 perror("gethostname");
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
412 exit(EX_OSERR);
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
413 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
414
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
415 if ((c = strchr(host, '.')) != NULL) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
416 *c = '\0';
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
417 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
418
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
419 if (getenv("SSH_CLIENT")) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
420 char *hg_gateway = HG_GATEWAY;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
421 char *hg_host = HG_HOST;
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
422
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
diff changeset
423 if (hg_gateway && strcmp(host, hg_gateway) == 0) {
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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424 forward_through_gateway(argc, argv);
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Vadim Gelfer <vadim.gelfer@gmail.com>
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425 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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426
dbbe7f72d15a contrib: add restricted shell.
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parents:
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427 if (hg_host && strcmp(host, hg_host) != 0) {
dbbe7f72d15a contrib: add restricted shell.
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parents:
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428 usage("invoked on unexpected host", EX_USAGE);
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Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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429 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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430
dbbe7f72d15a contrib: add restricted shell.
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parents:
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431 serve_data(argc, argv);
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432 } else if (HG_SHELL) {
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Vadim Gelfer <vadim.gelfer@gmail.com>
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433 run_shell(argc, argv);
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Vadim Gelfer <vadim.gelfer@gmail.com>
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434 } else {
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parents:
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435 usage("invalid arguments", EX_DATAERR);
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436 }
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
parents:
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437
dbbe7f72d15a contrib: add restricted shell.
Vadim Gelfer <vadim.gelfer@gmail.com>
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438 return 0;
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Vadim Gelfer <vadim.gelfer@gmail.com>
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439 }