diff options
Diffstat (limited to 'vl.c')
| -rw-r--r-- | vl.c | 22 |
1 files changed, 18 insertions, 4 deletions
@@ -3185,11 +3185,17 @@ static int io_thread_fd = -1; static void qemu_event_increment(void) { static const char byte = 0; + ssize_t ret; if (io_thread_fd == -1) return; - write(io_thread_fd, &byte, sizeof(byte)); + ret = write(io_thread_fd, &byte, sizeof(byte)); + if (ret < 0 && (errno != EINTR && errno != EAGAIN)) { + fprintf(stderr, "qemu_event_increment: write() filed: %s\n", + strerror(errno)); + exit (1); + } } static void qemu_event_read(void *opaque) @@ -5647,7 +5653,9 @@ int main(int argc, char **argv, char **envp) #ifndef _WIN32 if (daemonize) { uint8_t status = 1; - write(fds[1], &status, 1); + if (write(fds[1], &status, 1) != 1) { + perror("daemonize. Writing to pipe\n"); + } } else #endif fprintf(stderr, "Could not acquire pid file: %s\n", strerror(errno)); @@ -5946,7 +5954,10 @@ int main(int argc, char **argv, char **envp) if (len != 1) exit(1); - chdir("/"); + if (chdir("/")) { + perror("not able to chdir to /"); + exit(1); + } TFR(fd = qemu_open("/dev/null", O_RDWR)); if (fd == -1) exit(1); @@ -5965,7 +5976,10 @@ int main(int argc, char **argv, char **envp) fprintf(stderr, "chroot failed\n"); exit(1); } - chdir("/"); + if (chdir("/")) { + perror("not able to chdir to /"); + exit(1); + } } if (run_as) { |