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/*
ssh-bleach - sanitize an ssh command line
Copyright © 2006 Keith Packard and Carl Worth
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; using version 2 of the License.
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
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
int verbose = 0;
int cvs_server (char *line) {
if (!strcmp (line, "cvs server")) {
if (verbose)
printf ("cvs server\n");
return execl ("/usr/bin/cvs", "cvs", "server", NULL);
}
return 0;
}
char *get_quoted_arg (char *line)
{
char *first = strchr (line, '\'');
char *old;
char *last;
char *new, *n;
if (!first)
return NULL;
last = strrchr (line, '\'');
if (!last || last == first)
return NULL;
first++;
new = malloc (last - first + 1);
if (!new)
return NULL;
n = new;
for (old = first; old < last; old++) {
if (*old == '\\')
continue;
*n++ = *old;
}
*n++ = '\0';
if (verbose)
printf ("First argument is \"%s\"\n", new);
return new;
}
int git_receive_pack (char *line) {
char *arg;
if (!strncmp (line, "git-receive-pack '", 18) &&
(arg = get_quoted_arg (line)))
{
if (verbose)
printf ("git-receive-pack '%s'\n", arg);
return execl ("/usr/local/bin/git-receive-pack",
"git-receive-pack",
arg,
NULL);
}
return 0;
}
int git_upload_pack (char *line) {
char *arg;
if (!strncmp (line, "git-upload-pack '", 17) &&
(arg = get_quoted_arg (line)))
{
if (verbose)
printf ("git-upload-pack '%s'\n", arg);
return execl ("/usr/local/bin/git-upload-pack",
"git-upload-pack",
arg,
NULL);
}
return 0;
}
int (*commands[]) (char *line) = {
cvs_server,
git_receive_pack,
git_upload_pack,
NULL
};
int main (int argc, char **argv)
{
char *line = getenv ("SSH_ORIGINAL_COMMAND");
int i;
if (argv[1] && !strcmp (argv[1], "-v"))
verbose = 1;
if (!line)
return 1;
for (i = 0; commands[i]; i++)
if ((*commands[i]) (line) != 0)
break;
return 1;
}
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