Imported Upstream version 2.13.0

[platform/upstream/git.git] / shell.c

diff --git a/shell.c b/shell.c
index 84b237f..fe2d314 100644 (file)
--- a/shell.c
+++ b/shell.c
@@ -6,15 +6,16 @@
 
 #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)
 {
        const char *my_argv[4];
 
        setup_path();
-       if (!arg || !(arg = sq_dequote(arg)))
+       if (!arg || !(arg = sq_dequote(arg)) || *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);
 
@@ -79,7 +88,7 @@ static void run_shell(void)
                int count;
 
                fprintf(stderr, "git> ");
-               if (strbuf_getline(&line, stdin, '\n') == EOF) {
+               if (strbuf_getline_lf(&line, stdin) == EOF) {
                        fprintf(stderr, "\n");
                        strbuf_release(&line);
                        break;
@@ -129,30 +138,13 @@ static struct commands {
        { NULL },
 };
 
-int main(int argc, char **argv)
+int cmd_main(int argc, const char **argv)
 {
        char *prog;
        const char **user_argv;
        struct commands *cmd;
-       int devnull_fd;
        int count;
 
-       git_setup_gettext();
-
-       git_extract_argv0_path(argv[0]);
-
-       /*
-        * 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.
-        */
-       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);
-
        /*
         * Special hack to pretend to be a CVS server
         */