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| author | Jiang Xin <worldhello.net@gmail.com> | 2013-10-14 10:29:39 +0800 |
|---|---|---|
| committer | Jonathan Nieder <jrnieder@gmail.com> | 2013-10-14 07:00:26 -0700 |
| commit | 7fbd422162f2b49bc06a29a063f519450165dc86 (patch) | |
| tree | 206305e4a38d3e6858d89f7d11dfb48fb0b082c0 /path.c | |
| parent | daf19a80fa6b7402f8a2efa8f8255b4b5d6b48a9 (diff) | |
| download | git-7fbd422162f2b49bc06a29a063f519450165dc86.tar.gz | |
relative_path should honor dos-drive-prefix
Tvangeste found that the "relative_path" function could not work
properly on Windows if "in" and "prefix" have DOS drive prefix
(such as "C:/windows"). ($gmane/234434)
E.g., When execute: test-path-utils relative_path "C:/a/b" "D:/x/y",
should return "C:/a/b", but returns "../../C:/a/b", which is wrong.
So make relative_path honor DOS drive prefix, and add test cases
for it in t0060.
Reported-by: Tvangeste <i.4m.l33t@yandex.ru>
Helped-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Jiang Xin <worldhello.net@gmail.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Diffstat (limited to 'path.c')
| -rw-r--r-- | path.c | 20 |
1 files changed, 20 insertions, 0 deletions
@@ -441,6 +441,16 @@ int adjust_shared_perm(const char *path) return 0; } +static int have_same_root(const char *path1, const char *path2) +{ + int is_abs1, is_abs2; + + is_abs1 = is_absolute_path(path1); + is_abs2 = is_absolute_path(path2); + return (is_abs1 && is_abs2 && tolower(path1[0]) == tolower(path2[0])) || + (!is_abs1 && !is_abs2); +} + /* * Give path as relative to prefix. * @@ -461,6 +471,16 @@ const char *relative_path(const char *in, const char *prefix, else if (!prefix_len) return in; + if (have_same_root(in, prefix)) { + /* bypass dos_drive, for "c:" is identical to "C:" */ + if (has_dos_drive_prefix(in)) { + i = 2; + j = 2; + } + } else { + return in; + } + while (i < prefix_len && j < in_len && prefix[i] == in[j]) { if (is_dir_sep(prefix[i])) { while (is_dir_sep(prefix[i])) |