fixed readlink to add an ending '\0'

From: Cedric Le Goater <clg@fr.ibm.com>

fixed readlink to add an ending '\0'

Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
This commit is contained in:
legoater 2008-11-19 11:05:42 +00:00
parent b0e505c974
commit 6c79a11ba0

View File

@ -53,6 +53,7 @@ int lxc_start(const char *name, char *argv[])
int fd, lock, sv[2], sync = 0, err = -LXC_ERROR_INTERNAL;
pid_t pid;
int clone_flags;
ssize_t n;
lock = lxc_get_lock(name);
if (lock < 0) {
@ -69,10 +70,12 @@ int lxc_start(const char *name, char *argv[])
goto out;
}
if (readlink("/proc/self/fd/0", ttyname, sizeof(ttyname)) < 0) {
n = readlink("/proc/self/fd/0", ttyname, sizeof(ttyname));
if (n < 0) {
lxc_log_syserror("failed to read '/proc/self/fd/0'");
goto out;
}
ttyname[n] = '\0';
/* Synchro socketpair */
if (socketpair(AF_LOCAL, SOCK_STREAM, 0, sv)) {