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-rw-r--r--shell.c33
1 files changed, 18 insertions, 15 deletions
diff --git a/shell.c b/shell.c
index 84b237fef3..ace62e4b65 100644
--- a/shell.c
+++ b/shell.c
@@ -6,6 +6,7 @@
#define COMMAND_DIR "git-shell-commands"
#define HELP_COMMAND COMMAND_DIR "/help"
+#define NOLOGIN_COMMAND COMMAND_DIR "/no-interactive-login"
static int do_generic_cmd(const char *me, char *arg)
{
@@ -14,7 +15,7 @@ static int do_generic_cmd(const char *me, char *arg)
setup_path();
if (!arg || !(arg = sq_dequote(arg)))
die("bad argument");
- if (prefixcmp(me, "git-"))
+ if (!starts_with(me, "git-"))
die("bad command");
my_argv[0] = me + 4;
@@ -45,11 +46,7 @@ static int is_valid_cmd_name(const char *cmd)
static char *make_cmd(const char *prog)
{
- char *prefix = xmalloc((strlen(prog) + strlen(COMMAND_DIR) + 2));
- strcpy(prefix, COMMAND_DIR);
- strcat(prefix, "/");
- strcat(prefix, prog);
- return prefix;
+ return xstrfmt("%s/%s", COMMAND_DIR, prog);
}
static void cd_to_homedir(void)
@@ -65,6 +62,18 @@ static void run_shell(void)
{
int done = 0;
static const char *help_argv[] = { HELP_COMMAND, NULL };
+
+ if (!access(NOLOGIN_COMMAND, F_OK)) {
+ /* Interactive login disabled. */
+ const char *argv[] = { NOLOGIN_COMMAND, NULL };
+ int status;
+
+ status = run_command_v_opt(argv, 0);
+ if (status < 0)
+ exit(127);
+ exit(status);
+ }
+
/* Print help if enabled */
run_command_v_opt(help_argv, RUN_SILENT_EXEC_FAILURE);
@@ -134,7 +143,6 @@ int main(int argc, char **argv)
char *prog;
const char **user_argv;
struct commands *cmd;
- int devnull_fd;
int count;
git_setup_gettext();
@@ -143,15 +151,10 @@ int main(int argc, char **argv)
/*
* Always open file descriptors 0/1/2 to avoid clobbering files
- * in die(). It also avoids not messing up when the pipes are
- * dup'ed onto stdin/stdout/stderr in the child processes we spawn.
+ * in die(). It also avoids messing up when the pipes are dup'ed
+ * onto stdin/stdout/stderr in the child processes we spawn.
*/
- devnull_fd = open("/dev/null", O_RDWR);
- while (devnull_fd >= 0 && devnull_fd <= 2)
- devnull_fd = dup(devnull_fd);
- if (devnull_fd == -1)
- die_errno("opening /dev/null failed");
- close (devnull_fd);
+ sanitize_stdfds();
/*
* Special hack to pretend to be a CVS server