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fixed readlink to add an ending '\0'

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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
1 changed files with 4 additions and 1 deletions
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5
src/lxc/start.c
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@ -53,6 +53,7 @@ int lxc_start(const char *name, char *argv[])
int fd, lock, sv[2], sync = 0, err = -LXC_ERROR_INTERNAL; int fd, lock, sv[2], sync = 0, err = -LXC_ERROR_INTERNAL;
pid_t pid; pid_t pid;
int clone_flags; int clone_flags;
ssize_t n;
lock = lxc_get_lock(name); lock = lxc_get_lock(name);
if (lock < 0) { if (lock < 0) {
@ -69,10 +70,12 @@ int lxc_start(const char *name, char *argv[])
goto out; 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'"); lxc_log_syserror("failed to read '/proc/self/fd/0'");
goto out; goto out;
} }
ttyname[n] = '\0';
/* Synchro socketpair */ /* Synchro socketpair */
if (socketpair(AF_LOCAL, SOCK_STREAM, 0, sv)) { if (socketpair(AF_LOCAL, SOCK_STREAM, 0, sv)) {