diff options
Diffstat (limited to 'copy.c')
| -rw-r--r-- | copy.c | 58 |
1 files changed, 0 insertions, 58 deletions
@@ -70,61 +70,3 @@ int copy_file_with_time(const char *dst, const char *src, int mode) return copy_times(dst, src); return status; } - -static int do_symlinks_match(const char *path1, const char *path2) -{ - struct strbuf buf1 = STRBUF_INIT, buf2 = STRBUF_INIT; - int ret = 0; - - if (!strbuf_readlink(&buf1, path1, 0) && - !strbuf_readlink(&buf2, path2, 0)) - ret = !strcmp(buf1.buf, buf2.buf); - - strbuf_release(&buf1); - strbuf_release(&buf2); - return ret; -} - -int do_files_match(const char *path1, const char *path2) -{ - struct stat st1, st2; - int fd1 = -1, fd2 = -1, ret = 1; - char buf1[8192], buf2[8192]; - - if ((fd1 = open_nofollow(path1, O_RDONLY)) < 0 || - fstat(fd1, &st1) || !S_ISREG(st1.st_mode)) { - if (fd1 < 0 && errno == ELOOP) - /* maybe this is a symbolic link? */ - return do_symlinks_match(path1, path2); - ret = 0; - } else if ((fd2 = open_nofollow(path2, O_RDONLY)) < 0 || - fstat(fd2, &st2) || !S_ISREG(st2.st_mode)) { - ret = 0; - } - - if (ret) - /* to match, neither must be executable, or both */ - ret = !(st1.st_mode & 0111) == !(st2.st_mode & 0111); - - if (ret) - ret = st1.st_size == st2.st_size; - - while (ret) { - ssize_t len1 = read_in_full(fd1, buf1, sizeof(buf1)); - ssize_t len2 = read_in_full(fd2, buf2, sizeof(buf2)); - - if (len1 < 0 || len2 < 0 || len1 != len2) - ret = 0; /* read error or different file size */ - else if (!len1) /* len2 is also 0; hit EOF on both */ - break; /* ret is still true */ - else - ret = !memcmp(buf1, buf2, len1); - } - - if (fd1 >= 0) - close(fd1); - if (fd2 >= 0) - close(fd2); - - return ret; -} |