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authorLennart Poettering <lennart@poettering.net>2015-06-15 20:33:35 +0200
committerLennart Poettering <lennart@poettering.net>2015-06-15 20:33:35 +0200
commit78ed65ac8dd05041f08ba8b089e1e87445a0905f (patch)
treee62a030ceb75b3d777c57793bec55cb7a220f7df /src/basic
parentdd5da693ab4579c619017b4aac2a234d4b7a3ea7 (diff)
parent770b5ce4fc31a336a41e81381c229da725ef0cfa (diff)
Merge pull request #212 from poettering/gc-machine-snapshots
automatically remove old machine shapshots at boot
Diffstat (limited to 'src/basic')
-rw-r--r--src/basic/copy.c2
-rw-r--r--src/basic/util.c41
-rw-r--r--src/basic/util.h6
3 files changed, 29 insertions, 20 deletions
diff --git a/src/basic/copy.c b/src/basic/copy.c
index 1282cb88be..230e7e4d3f 100644
--- a/src/basic/copy.c
+++ b/src/basic/copy.c
@@ -396,7 +396,7 @@ int copy_file_atomic(const char *from, const char *to, mode_t mode, bool replace
assert(from);
assert(to);
- r = tempfn_random(to, &t);
+ r = tempfn_random(to, NULL, &t);
if (r < 0)
return r;
diff --git a/src/basic/util.c b/src/basic/util.c
index 6f6906f877..b7c70af541 100644
--- a/src/basic/util.c
+++ b/src/basic/util.c
@@ -2521,7 +2521,7 @@ int fopen_temporary(const char *path, FILE **_f, char **_temp_path) {
assert(_f);
assert(_temp_path);
- r = tempfn_xxxxxx(path, &t);
+ r = tempfn_xxxxxx(path, NULL, &t);
if (r < 0)
return r;
@@ -2551,7 +2551,7 @@ int symlink_atomic(const char *from, const char *to) {
assert(from);
assert(to);
- r = tempfn_random(to, &t);
+ r = tempfn_random(to, NULL, &t);
if (r < 0)
return r;
@@ -2594,7 +2594,7 @@ int mknod_atomic(const char *path, mode_t mode, dev_t dev) {
assert(path);
- r = tempfn_random(path, &t);
+ r = tempfn_random(path, NULL, &t);
if (r < 0)
return r;
@@ -2615,7 +2615,7 @@ int mkfifo_atomic(const char *path, mode_t mode) {
assert(path);
- r = tempfn_random(path, &t);
+ r = tempfn_random(path, NULL, &t);
if (r < 0)
return r;
@@ -4969,7 +4969,7 @@ int fflush_and_check(FILE *f) {
return 0;
}
-int tempfn_xxxxxx(const char *p, char **ret) {
+int tempfn_xxxxxx(const char *p, const char *extra, char **ret) {
const char *fn;
char *t;
@@ -4981,24 +4981,27 @@ int tempfn_xxxxxx(const char *p, char **ret) {
* /foo/bar/waldo
*
* Into this:
- * /foo/bar/.#waldoXXXXXX
+ * /foo/bar/.#<extra>waldoXXXXXX
*/
fn = basename(p);
if (!filename_is_valid(fn))
return -EINVAL;
- t = new(char, strlen(p) + 2 + 6 + 1);
+ if (extra == NULL)
+ extra = "";
+
+ t = new(char, strlen(p) + 2 + strlen(extra) + 6 + 1);
if (!t)
return -ENOMEM;
- strcpy(stpcpy(stpcpy(mempcpy(t, p, fn - p), ".#"), fn), "XXXXXX");
+ strcpy(stpcpy(stpcpy(stpcpy(mempcpy(t, p, fn - p), ".#"), extra), fn), "XXXXXX");
*ret = path_kill_slashes(t);
return 0;
}
-int tempfn_random(const char *p, char **ret) {
+int tempfn_random(const char *p, const char *extra, char **ret) {
const char *fn;
char *t, *x;
uint64_t u;
@@ -5012,18 +5015,21 @@ int tempfn_random(const char *p, char **ret) {
* /foo/bar/waldo
*
* Into this:
- * /foo/bar/.#waldobaa2a261115984a9
+ * /foo/bar/.#<extra>waldobaa2a261115984a9
*/
fn = basename(p);
if (!filename_is_valid(fn))
return -EINVAL;
- t = new(char, strlen(p) + 2 + 16 + 1);
+ if (!extra)
+ extra = "";
+
+ t = new(char, strlen(p) + 2 + strlen(extra) + 16 + 1);
if (!t)
return -ENOMEM;
- x = stpcpy(stpcpy(mempcpy(t, p, fn - p), ".#"), fn);
+ x = stpcpy(stpcpy(stpcpy(mempcpy(t, p, fn - p), ".#"), extra), fn);
u = random_u64();
for (i = 0; i < 16; i++) {
@@ -5037,7 +5043,7 @@ int tempfn_random(const char *p, char **ret) {
return 0;
}
-int tempfn_random_child(const char *p, char **ret) {
+int tempfn_random_child(const char *p, const char *extra, char **ret) {
char *t, *x;
uint64_t u;
unsigned i;
@@ -5048,14 +5054,17 @@ int tempfn_random_child(const char *p, char **ret) {
/* Turns this:
* /foo/bar/waldo
* Into this:
- * /foo/bar/waldo/.#3c2b6219aa75d7d0
+ * /foo/bar/waldo/.#<extra>3c2b6219aa75d7d0
*/
- t = new(char, strlen(p) + 3 + 16 + 1);
+ if (!extra)
+ extra = "";
+
+ t = new(char, strlen(p) + 3 + strlen(extra) + 16 + 1);
if (!t)
return -ENOMEM;
- x = stpcpy(stpcpy(t, p), "/.#");
+ x = stpcpy(stpcpy(stpcpy(t, p), "/.#"), extra);
u = random_u64();
for (i = 0; i < 16; i++) {
diff --git a/src/basic/util.h b/src/basic/util.h
index 467ae234a0..7aca46d777 100644
--- a/src/basic/util.h
+++ b/src/basic/util.h
@@ -828,9 +828,9 @@ int bind_remount_recursive(const char *prefix, bool ro);
int fflush_and_check(FILE *f);
-int tempfn_xxxxxx(const char *p, char **ret);
-int tempfn_random(const char *p, char **ret);
-int tempfn_random_child(const char *p, char **ret);
+int tempfn_xxxxxx(const char *p, const char *extra, char **ret);
+int tempfn_random(const char *p, const char *extra, char **ret);
+int tempfn_random_child(const char *p, const char *extra, char **ret);
int take_password_lock(const char *root);