systemd-run: support -t mode when combined with -M

For that, ask machined for a container PTY and use that.

2 files changed, 26 insertions, 0 deletions

diff --git a/src/shared/util.c b/src/shared/util.c
index 06b6077843..6695a85a1c 100644
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -7433,3 +7433,27 @@ int sethostname_idempotent(const char *s) {
 
         return 1;
 }
+
+int ptsname_malloc(int fd, char **ret) {
+        size_t l = 100;
+
+        for (;;) {
+                char *c;
+
+                c = new(char, l);
+                if (!c)
+                        return -ENOMEM;
+
+                if (ptsname_r(fd, c, l) == 0) {
+                        *ret = c;
+                        return 0;
+                }
+                if (errno != ERANGE) {
+                        free(c);
+                        return -errno;
+                }
+
+                free(c);
+                l *= 2;
+        }
+}
diff --git a/src/shared/util.h b/src/shared/util.h
index 1804b8c3a2..d3e78e43ca 100644
--- a/src/shared/util.h
+++ b/src/shared/util.h
@@ -1052,3 +1052,5 @@ int sethostname_idempotent(const char *s);
              (e) = (struct inotify_event*) ((uint8_t*) (e) + sizeof(struct inotify_event) + (e)->len))
 
 #define laccess(path, mode) faccessat(AT_FDCWD, (path), (mode), AT_SYMLINK_NOFOLLOW)
+
+int ptsname_malloc(int fd, char **ret);