Use xmalloc() and friends to catch allocation failures

diff --git a/git.c b/git.c
index 37b1d76a08ca59f3de54e11890dce962403cf8d3..905acc2f2cd591bd3bd65008f7a72a5642a21f35 100644 (file)
--- a/git.c
+++ b/git.c
@@ -286,7 +286,7 @@ static void handle_internal_command(int argc, const char **argv)
                { "count-objects", cmd_count_objects, RUN_SETUP },
                { "describe", cmd_describe, RUN_SETUP },
                { "diff", cmd_diff },
-               { "diff-files", cmd_diff_files, RUN_SETUP },
+               { "diff-files", cmd_diff_files, RUN_SETUP | NEED_WORK_TREE },
                { "diff-index", cmd_diff_index, RUN_SETUP },
                { "diff-tree", cmd_diff_tree, RUN_SETUP },
                { "fast-export", cmd_fast_export, RUN_SETUP },
@@ -364,7 +364,7 @@ static void handle_internal_command(int argc, const char **argv)
        if (sizeof(ext) > 1) {
                i = strlen(argv[0]) - strlen(ext);
                if (i > 0 && !strcmp(argv[0] + i, ext)) {
-                       char *argv0 = strdup(argv[0]);
+                       char *argv0 = xstrdup(argv[0]);
                        argv[0] = cmd = argv0;
                        argv0[i] = '\0';
                }
@@ -499,7 +499,9 @@ int main(int argc, const char **argv)
                                cmd, argv[0]);
                        exit(1);
                }
-               help_unknown_cmd(cmd);
+               argv[0] = help_unknown_cmd(cmd);
+               handle_internal_command(argc, argv);
+               execv_dashed_external(argv);
        }
 
        fprintf(stderr, "Failed to run command '%s': %s\n",