patch: correctly handle "patch FILE_TO_PATCH" form. Closes 7736
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
diff --git a/editors/patch.c b/editors/patch.c
index cb25e41..988021d 100644
--- a/editors/patch.c
+++ b/editors/patch.c
@@ -372,10 +372,6 @@
xmove_fd(xopen_stdin(argv[1]), STDIN_FILENO);
}
}
- if (argv[0]) {
- oldname = xstrdup(argv[0]);
- newname = xstrdup(argv[0]);
- }
// Loop through the lines in the patch
for(;;) {
@@ -486,10 +482,10 @@
// or if new hunk is empty (zero context) after patching
if (!strcmp(name, "/dev/null") || !(reverse ? oldsum : newsum)) {
name = reverse ? newname : oldname;
- empty++;
+ empty = 1;
}
- // handle -p path truncation.
+ // Handle -p path truncation.
for (i = 0, s = name; *s;) {
if ((option_mask32 & FLAG_PATHLEN) && TT.prefix == i)
break;
@@ -500,6 +496,9 @@
i++;
name = s;
}
+ // If "patch FILE_TO_PATCH", completely ignore name from patch
+ if (argv[0])
+ name = argv[0];
if (empty) {
// File is empty after the patches have been applied