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Diffstat (limited to 'toys')
-rw-r--r--toys/posix/cp.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/toys/posix/cp.c b/toys/posix/cp.c
index d822b1e2..8bcb81e6 100644
--- a/toys/posix/cp.c
+++ b/toys/posix/cp.c
@@ -395,20 +395,21 @@ void cp_main(void)
errno = EXDEV;
if (CFG_MV && toys.which->name[0] == 'm') {
- if (!(toys.optflags & FLAG_f)) {
+ int force = toys.optflags & FLAG_f, no_clobber = toys.optflags & FLAG_n;
+ if (!force || no_clobber) {
struct stat st;
-
- // Technically "is writeable" is more complicated (022 is not writeable
- // by the owner, just everybody _else_) but I don't care.
- if (!stat(TT.destname, &st)
- && ((toys.optflags & FLAG_i) || !(st.st_mode & 0222)))
- {
+ int exists = !stat(TT.destname, &st);
+ // Prompt if -i or file isn't writable. Technically "is writable" is
+ // more complicated (022 is not writeable by the owner, just everybody
+ // _else_) but I don't care.
+ if (exists && ((toys.optflags & FLAG_i) || !(st.st_mode & 0222))) {
fprintf(stderr, "%s: overwrite '%s'", toys.which->name, TT.destname);
if (!yesno(1)) rc = 0;
else unlink(TT.destname);
}
+ // if -n and dest exists, don't try to rename() or copy
+ if (exists && no_clobber) rc = 0;
}
-
if (rc) rc = rename(src, TT.destname);
}