Prep v226: Apply missing fixes and changes to src/basic

[elogind.git] / src / basic / terminal-util.c

diff --git a/src/basic/terminal-util.c b/src/basic/terminal-util.c
index 73e5c2e571b681233dfc5135bf5616fd7903d280..51abc78ce2b98cbd2a56d8b972e8fae6652a3123 100644 (file)
--- 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;
 }
 
         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;
+}