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sbase/libutil/fnck.c
Arthur Williams 8dfcbf23b0 cp: don't abort when src and dest file are the same
The POSIX spec gives many options on how to handle this case, but it
also states that cp (and mv) should continue with remaining operands
regardless. We used to exit immediately, which violates the spec.

This change makes cp/mv not exit immediately in this case and
also won't cause the return value to be non-zero.

From `man 1p cp`:
   If source_file references the same file as dest_file, cp may write
   a diagnostic message to standard error; it shall do nothing more
   with source_file and shall go on to any remaining files.
2023-04-12 21:09:12 -07:00

23 lines
456 B
C

/* See LICENSE file for copyright and license details. */
#include <sys/stat.h>
#include "../util.h"
void
fnck(const char *a, const char *b,
int (*fn)(const char *, const char *, int), int depth)
{
struct stat sta, stb;
if (!stat(a, &sta)
&& !stat(b, &stb)
&& sta.st_dev == stb.st_dev
&& sta.st_ino == stb.st_ino) {
weprintf("%s -> %s: same file\n", a, b);
return;
}
if (fn(a, b, depth) < 0)
eprintf("%s -> %s:", a, b);
}