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confile: check allocation succeeds

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Signed-off-by: Michael Santos <michael.santos@gmail.com>
Signed-off-by: Daniel Lezcano <dlezcano@fr.ibm.com>
This commit is contained in:
Michael Santos 2011-03-19 11:11:31 -04:00 committed by Daniel Lezcano
parent 95642a1068
commit bf83c5b90b
1 changed files with 29 additions and 8 deletions
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37
src/lxc/confile.c
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@ -195,7 +195,7 @@ static struct lxc_netdev *network_netdev(const char *key, const char *value,
static int network_ifname(char **valuep, char *value)
{
if (strlen(value) > IFNAMSIZ) {
if (strlen(value) >= IFNAMSIZ) {
ERROR("invalid interface name: %s", value);
return -1;
}
@ -553,8 +553,8 @@ static int config_cgroup(const char *key, char *value, struct lxc_conf *lxc_conf
{
char *token = "lxc.cgroup.";
char *subkey;
struct lxc_list *cglist;
struct lxc_cgroup *cgelem;
struct lxc_list *cglist = NULL;
struct lxc_cgroup *cgelem = NULL;
subkey = strstr(key, token);
@ -571,21 +571,40 @@ static int config_cgroup(const char *key, char *value, struct lxc_conf *lxc_conf
cglist = malloc(sizeof(*cglist));
if (!cglist)
return -1;
goto out;
cgelem = malloc(sizeof(*cgelem));
if (!cgelem) {
free(cglist);
return -1;
}
if (!cgelem)
goto out;
memset(cgelem, 0, sizeof(*cgelem));
cgelem->subsystem = strdup(subkey);
cgelem->value = strdup(value);
if (!cgelem->subsystem || !cgelem->value)
goto out;
cglist->elem = cgelem;
lxc_list_add_tail(&lxc_conf->cgroup, cglist);
return 0;
out:
if (cglist)
free(cglist);
if (cgelem) {
if (cgelem->subsystem)
free(cgelem->subsystem);
if (cgelem->value)
free(cgelem->value);
free(cgelem);
}
return -1;
}
static int config_fstab(const char *key, char *value, struct lxc_conf *lxc_conf)
@ -631,6 +650,8 @@ static int config_mount(const char *key, char *value, struct lxc_conf *lxc_conf)
return -1;
mntelem = strdup(value);
if (!mntelem)
return -1;
mntlist->elem = mntelem;
lxc_list_add_tail(&lxc_conf->mount_list, mntlist);