e0cbe4863
Eric Andersen
2004-02-19
Subject
Chris Larson (kergoth) writes:
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libbb/copy_file.c+16 -0
| @@ -65,12 +65,28 @@ int copy_file(const char *source, const char *dest, int flags) | |
| DIR *dp; | |
| struct dirent *d; | |
| mode_t saved_umask = 0; | |
| + | char *dstparent; |
| + | struct stat dstparent_stat; |
| if (!(flags & FILEUTILS_RECUR)) { | |
| bb_error_msg("%s: omitting directory", source); | |
| return -1; | |
| } | |
| + | dstparent = dirname(bb_xstrdup(dest)); |
| + | if (lstat(dstparent, &dstparent_stat) < 0) { |
| + | bb_perror_msg("unable to stat `%s'", dstparent); |
| + | free(dstparent); |
| + | return -1; |
| + | } |
| + | free(dstparent); |
| + | |
| + | if (source_stat.st_dev == dstparent_stat.st_dev && |
| + | source_stat.st_ino == dstparent_stat.st_ino) { |
| + | bb_error_msg("cannot copy a directory, `%s', into itself, `%s'", source, dest); |
| + | return -1; |
| + | } |
| + | |
| /* Create DEST. */ | |
| if (dest_exists) { | |
| if (!S_ISDIR(dest_stat.st_mode)) { | |