X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=blobdiff_plain;f=git.c;h=00f5dd1d4994ff44c5d718ee8f9ea9d21777245f;hb=de813435621b914f2b3e148c6cc94ab0066300c3;hp=54c5bfa69b0696a376828e36c30b957506fce408;hpb=8af84dadb142f7321ff0ce8690385e99da8ede2f;p=git.git

diff --git a/git.c b/git.c
index 54c5bfa69..00f5dd1d4 100644
--- a/git.c
+++ b/git.c
@@ -162,6 +162,8 @@ static int handle_alias(int *argcp, const char ***argv)
 			    alias_string + 1, alias_command);
 		}
 		count = split_cmdline(alias_string, &new_argv);
+		if (count < 0)
+			die("Bad alias.%s string", alias_command);
 		option_count = handle_options(&new_argv, &count, &envchanged);
 		if (envchanged)
 			die("alias '%s' changes environment variables\n"
@@ -286,7 +288,7 @@ 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 +366,7 @@ 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';
 		}