diff options
| author | Lennart Poettering <lennart@poettering.net> | 2014-12-19 18:40:23 +0100 |
|---|---|---|
| committer | Lennart Poettering <lennart@poettering.net> | 2014-12-19 19:19:29 +0100 |
| commit | 8eebf6ad553adb22d7ea5d291de0b0da38606f4d (patch) | |
| tree | 89c27d23acf69e54768416e696cec82a51b78078 /src | |
| parent | 668c965af4e803f460925dc616f328ed274d1f3a (diff) | |
util: when creating temporary filename for atomic creation of files, add an extra "#" to the name
That way, we have a simple, somewhat reliable way to detect such
temporary files, by simply checking if they start with ".#".
Diffstat (limited to 'src')
| -rw-r--r-- | src/shared/util.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/src/shared/util.c b/src/shared/util.c index dbae55fe38..5f18d34c3d 100644 --- a/src/shared/util.c +++ b/src/shared/util.c @@ -6992,18 +6992,18 @@ int tempfn_xxxxxx(const char *p, char **ret) { * /foo/bar/waldo * * Into this: - * /foo/bar/.waldoXXXXXX + * /foo/bar/.#waldoXXXXXX */ fn = basename(p); if (!filename_is_valid(fn)) return -EINVAL; - t = new(char, strlen(p) + 1 + 6 + 1); + t = new(char, strlen(p) + 2 + 6 + 1); if (!t) return -ENOMEM; - strcpy(stpcpy(stpcpy(mempcpy(t, p, fn - p), "."), fn), "XXXXXX"); + strcpy(stpcpy(stpcpy(mempcpy(t, p, fn - p), ".#"), fn), "XXXXXX"); *ret = path_kill_slashes(t); return 0; @@ -7023,18 +7023,18 @@ int tempfn_random(const char *p, char **ret) { * /foo/bar/waldo * * Into this: - * /foo/bar/.waldobaa2a261115984a9 + * /foo/bar/.#waldobaa2a261115984a9 */ fn = basename(p); if (!filename_is_valid(fn)) return -EINVAL; - t = new(char, strlen(p) + 1 + 16 + 1); + t = new(char, strlen(p) + 2 + 16 + 1); if (!t) return -ENOMEM; - x = stpcpy(stpcpy(mempcpy(t, p, fn - p), "."), fn); + x = stpcpy(stpcpy(mempcpy(t, p, fn - p), ".#"), fn); u = random_u64(); for (i = 0; i < 16; i++) { @@ -7059,14 +7059,14 @@ int tempfn_random_child(const char *p, char **ret) { /* Turns this: * /foo/bar/waldo * Into this: - * /foo/bar/waldo/.3c2b6219aa75d7d0 + * /foo/bar/waldo/.#3c2b6219aa75d7d0 */ - t = new(char, strlen(p) + 2 + 16 + 1); + t = new(char, strlen(p) + 3 + 16 + 1); if (!t) return -ENOMEM; - x = stpcpy(stpcpy(t, p), "/."); + x = stpcpy(stpcpy(t, p), "/.#"); u = random_u64(); for (i = 0; i < 16; i++) { |