#include <sys/wait.h>
#include <sys/stat.h>
#include <sys/time.h>
+#include <signal.h>
#include <assert.h>
#include <ccan/read_write_all/read_write_all.h>
#include <ccan/failtest/failtest_proto.h>
#define add_history(type, file, line, elem) \
add_history_((type), (file), (line), (elem), sizeof(*(elem)))
+/* We do a fake call inside a sizeof(), to check types. */
#define set_cleanup(call, clean, type) \
- (call)->cleanup = (void *)((void)sizeof(clean((type *)NULL)), (clean))
+ (call)->cleanup = (void *)((void)sizeof(clean((type *)NULL),1), (clean))
static bool read_write_info(int fd)
{
s->len = lseek(fd, 0, SEEK_END);
lseek(fd, 0, SEEK_SET);
s->contents = malloc(s->len);
- read(fd, s->contents, s->len);
+ if (read(fd, s->contents, s->len) != s->len)
+ err(1, "Failed to save %zu bytes", (size_t)s->len);
lseek(fd, s->off, SEEK_SET);
return s;
}
struct saved_file *next = s->next;
lseek(s->fd, 0, SEEK_SET);
- write(s->fd, s->contents, s->len);
- ftruncate(s->fd, s->len);
+ if (write(s->fd, s->contents, s->len) != s->len)
+ err(1, "Failed to restore %zu bytes", (size_t)s->len);
+ if (ftruncate(s->fd, s->len) != 0)
+ err(1, "Failed to trim file to length %zu",
+ (size_t)s->len);
free(s->contents);
lseek(s->fd, s->off, SEEK_SET);
free(s);
/* + means continue after end, like normal. */
if (*failpath == '+')
failpath = NULL;
- else {
+ else if (*failpath == '\0') {
+ /* Continue, but don't inject errors. */
+ return call->fail = false;
+ } else {
if (tolower((unsigned char)*failpath)
!= info_to_arg[call->type])
errx(1, "Failpath expected '%c' got '%c'\n",
signal(SIGUSR1, SIG_IGN);
sprintf(str, "xterm -e gdb /proc/%d/exe %d &",
getpid(), getpid());
- system(str);
- sleep(5);
+ if (system(str) == 0)
+ sleep(5);
}
}
else
ret = poll(pfd, 2, failtest_timeout_ms);
- if (ret <= 0)
+ if (ret == 0)
hand_down(SIGUSR1);
+ if (ret < 0) {
+ if (errno == EINTR)
+ continue;
+ err(1, "Poll returned %i", ret);
+ }
if (pfd[0].revents & POLLIN) {
ssize_t len;