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Commit f6639e3b by Serge Hallyn
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cgm_get: support NULL value

Signed-off-by: 's avatarSerge Hallyn <serge.hallyn@ubuntu.com>
parent bfb1bb94
Showing with 6 additions and 0 deletions
src/lxc/cgmanager.c
...@@ -269,6 +269,12 @@ int cgm_get(const char *filename, char *value, size_t len, const char *name, con ...@@ -269,6 +269,12 @@ int cgm_get(const char *filename, char *value, size_t len, const char *name, con
} }
free(cgroup); free(cgroup);
newlen = strlen(result); newlen = strlen(result);
if (!value) {
// user queries the size
nih_free(result);
return newlen+1;
}
strncpy(value, result, len); strncpy(value, result, len);
if (newlen >= len) { if (newlen >= len) {
value[len-1] = '\0'; value[len-1] = '\0';
......
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