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rootless: set controlling terminal for podman in the userns

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Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano 2019-04-12 18:20:18 +02:00
parent 6ddc67c694
commit 531514e823
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GPG key ID: E4730F97F60286ED
1 changed files with 7 additions and 0 deletions
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7
pkg/rootless/rootless_linux.c
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@ -16,6 +16,8 @@
#include <sys/types.h>
#include <sys/prctl.h>
#include <dirent.h>
#include <termios.h>
#include <sys/ioctl.h>
static const char *_max_user_namespaces = "/proc/sys/user/max_user_namespaces";
static const char *_unprivileged_user_namespaces = "/proc/sys/kernel/unprivileged_userns_clone";
@ -178,6 +180,11 @@ reexec_userns_join (int userns, int mountns)
_exit (EXIT_FAILURE);
}
if (isatty (1) && ioctl (1, TIOCSCTTY, 0) == -1) {
fprintf (stderr, "cannot ioctl(TIOCSCTTY): %s\n", strerror (errno));
_exit (EXIT_FAILURE);
}
if (setns (userns, 0) < 0)
{
fprintf (stderr, "cannot setns: %s\n", strerror (errno));