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-rw-r--r--src/api.c43
1 files changed, 27 insertions, 16 deletions
diff --git a/src/api.c b/src/api.c
index 75dc92a..237d4e6 100644
--- a/src/api.c
+++ b/src/api.c
@@ -243,6 +243,30 @@ static void cgroup_free_rule_list(struct cgroup_rule_list *rl)
rl->tail = NULL;
}
+static char *cg_skip_unused_charactors_in_rule(char *rule)
+{
+ char *itr;
+
+ /* We ignore anything after a # sign as comments. */
+ if ((itr = strchr(rule, '#')))
+ *itr = '\0';
+
+ /* We also need to remove the newline character. */
+ if ((itr = strchr(rule, '\n')))
+ *itr = '\0';
+
+ /* Now, skip any leading tabs and spaces. */
+ itr = rule;
+ while (itr && isblank(*itr))
+ itr++;
+
+ /* If there's nothing left, we can ignore this line. */
+ if (!strlen(itr))
+ return NULL;
+
+ return itr;
+}
+
/**
* Parse the configuration file that maps UID/GIDs to cgroups. If ever the
* configuration file is modified, applications should call this function to
@@ -337,23 +361,10 @@ static int cgroup_parse_rules(bool cache, uid_t muid, gid_t mgid)
while ((itr = fgets(buff, sizeof(buff), fp)) != NULL) {
linenum++;
- /* We ignore anything after a # sign as comments. */
- if ((itr = strchr(buff, '#')))
- *itr = '\0';
-
- /* We also need to remove the newline character. */
- if ((itr = strchr(buff, '\n')))
- *itr = '\0';
-
- /* Now, skip any leading tabs and spaces. */
- itr = &buff;
- while (itr && isblank(*itr))
- itr++;
-
- /* If there's nothing left, we can ignore this line. */
- if (!strlen(itr))
+ if (!(itr = cg_skip_unused_charactors_in_rule(buff))) {
+ memset(buff, '\0', sizeof(buff));
continue;
-
+ }
/*
* If we skipped the last rule and this rule is a continuation
* of it (begins with %), then we should skip this rule too.