diff options
Diffstat (limited to 'monitor/fds.c')
| -rw-r--r-- | monitor/fds.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/monitor/fds.c b/monitor/fds.c index e7619a6103..d8c6b395b0 100644 --- a/monitor/fds.c +++ b/monitor/fds.c @@ -409,9 +409,10 @@ AddfdInfo *monitor_fdset_add_fd(int fd, bool has_fdset_id, int64_t fdset_id, return fdinfo; } -int monitor_fdset_dup_fd_add(int64_t fdset_id, int flags) +int monitor_fdset_dup_fd_add(int64_t fdset_id, int flags, Error **errp) { #ifdef _WIN32 + error_setg(errp, "Platform does not support fd passing (fdset)"); return -ENOENT; #else MonFdset *mon_fdset; @@ -431,6 +432,8 @@ int monitor_fdset_dup_fd_add(int64_t fdset_id, int flags) QLIST_FOREACH(mon_fdset_fd, &mon_fdset->fds, next) { mon_fd_flags = fcntl(mon_fdset_fd->fd, F_GETFL); if (mon_fd_flags == -1) { + error_setg(errp, "Failed to read file status flags for fd=%d", + mon_fdset_fd->fd); return -1; } @@ -442,11 +445,15 @@ int monitor_fdset_dup_fd_add(int64_t fdset_id, int flags) if (fd == -1) { errno = EACCES; + error_setg(errp, + "Failed to find file descriptor with matching flags=0x%x", + flags); return -1; } dup_fd = qemu_dup_flags(fd, flags); if (dup_fd == -1) { + error_setg(errp, "Failed to dup() given file descriptor fd=%d", fd); return -1; } @@ -456,6 +463,7 @@ int monitor_fdset_dup_fd_add(int64_t fdset_id, int flags) return dup_fd; } + error_setg(errp, "Failed to find fdset /dev/fdset/%" PRId64, fdset_id); errno = ENOENT; return -1; #endif |