X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=blobdiff_plain;f=src%2Fbasic%2Fterminal-util.c;h=51abc78ce2b98cbd2a56d8b972e8fae6652a3123;hp=73e5c2e571b681233dfc5135bf5616fd7903d280;hb=4ebadef69ff96e92122a133cfecadf60816c4fa3;hpb=bd1ce0bdbfc97a958a6c56fe062bed892f08444a

diff --git a/src/basic/terminal-util.c b/src/basic/terminal-util.c
index 73e5c2e57..51abc78ce 100644
--- a/src/basic/terminal-util.c
+++ b/src/basic/terminal-util.c
@@ -1092,3 +1092,22 @@ int get_ctty(pid_t pid, dev_t *_devnr, char **r) {
 
         return 0;
 }
+
+int ptsname_namespace(int pty, char **ret) {
+        int no = -1, r;
+
+        /* Like ptsname(), but doesn't assume that the path is
+         * accessible in the local namespace. */
+
+        r = ioctl(pty, TIOCGPTN, &no);
+        if (r < 0)
+                return -errno;
+
+        if (no < 0)
+                return -EIO;
+
+        if (asprintf(ret, "/dev/pts/%i", no) < 0)
+                return -ENOMEM;
+
+        return 0;
+}