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authorMartin Pitt <martin.pitt@ubuntu.com>2016-02-26 11:25:22 +0100
committerMartin Pitt <martin.pitt@ubuntu.com>2016-02-26 11:28:49 +0100
commit6369641d6f594557114b78fe740544ecf69a6d37 (patch)
tree9970181e381ca65c923bec9ef8ab711b705eb397 /src/basic/clock-util.c
parent06fb28b16eb4b6170c2e2c0cf1f673730309509b (diff)
clock-util: make clock_is_localtime() testable and add initial tests
Add path argument to clock_is_localtime() and default to "/etc/adjtime" if it's NULL. This makes the function testable. Add test-clock: initial test cases for some scenarios, using a temporary file. This also checks the behaviour with a NULL (i. e. the system's /etc/adjtime) file.
Diffstat (limited to 'src/basic/clock-util.c')
-rw-r--r--src/basic/clock-util.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/src/basic/clock-util.c b/src/basic/clock-util.c
index 507e757ff0..dd6c043af9 100644
--- a/src/basic/clock-util.c
+++ b/src/basic/clock-util.c
@@ -69,9 +69,12 @@ int clock_set_hwclock(const struct tm *tm) {
return 0;
}
-int clock_is_localtime(void) {
+int clock_is_localtime(const char* adjtime_path) {
_cleanup_fclose_ FILE *f;
+ if (adjtime_path == NULL)
+ adjtime_path = "/etc/adjtime";
+
/*
* The third line of adjtime is "UTC" or "LOCAL" or nothing.
* # /etc/adjtime
@@ -79,7 +82,7 @@ int clock_is_localtime(void) {
* 0
* UTC
*/
- f = fopen("/etc/adjtime", "re");
+ f = fopen(adjtime_path, "re");
if (f) {
char line[LINE_MAX];
bool b;