#include <sys/wait.h>
#include <sys/stat.h>
#include <sys/time.h>
+#include <sys/mman.h>
#include <signal.h>
#include <assert.h>
#include <ccan/time/time.h>
static pid_t orig_pid;
-static const char info_to_arg[] = "mceoxprwf";
+static const char info_to_arg[] = "mceoxprwfa";
/* Dummy call used for failtest_undo wrappers. */
static struct failtest_call unrecorded_call;
}
free_everything();
- tell_parent(SUCCESS);
+ if (status == 0)
+ tell_parent(SUCCESS);
+ else
+ tell_parent(FAILURE);
exit(status);
}
+static bool following_path(void)
+{
+ if (!failpath)
+ return false;
+ /* + means continue after end, like normal. */
+ if (*failpath == '+') {
+ failpath = NULL;
+ return false;
+ }
+ return true;
+}
+
+static bool follow_path(struct failtest_call *call)
+{
+ if (*failpath == '\0') {
+ /* Continue, but don't inject errors. */
+ return call->fail = false;
+ }
+
+ if (tolower((unsigned char)*failpath) != info_to_arg[call->type])
+ errx(1, "Failpath expected '%s' got '%c'\n",
+ failpath, info_to_arg[call->type]);
+ call->fail = cisupper(*(failpath++));
+ return call->fail;
+}
+
static bool should_fail(struct failtest_call *call)
{
int status;
if (call == &unrecorded_call)
return false;
- if (failpath) {
- /* + means continue after end, like normal. */
- if (*failpath == '+')
- failpath = NULL;
- 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",
- info_to_arg[call->type], *failpath);
- call->fail = cisupper(*(failpath++));
- return call->fail;
- }
- }
+ if (following_path())
+ return follow_path(call);
/* Attach debugger if they asked for it. */
if (debugpath) {
p->u.open.ret = open(pathname, call.flags, call.mode);
if (p->u.open.ret == -1) {
+ if (following_path())
+ follow_path(p);
p->fail = false;
p->error = errno;
} else if (should_fail(p)) {
return p->u.open.ret;
}
+void *failtest_mmap(void *addr, size_t length, int prot, int flags,
+ int fd, off_t offset, const char *file, unsigned line)
+{
+ struct failtest_call *p;
+ struct mmap_call call;
+
+ call.addr = addr;
+ call.length = length;
+ call.prot = prot;
+ call.flags = flags;
+ call.offset = offset;
+ call.fd = fd;
+
+ p = add_history(FAILTEST_MMAP, file, line, &call);
+ if (should_fail(p)) {
+ p->u.mmap.ret = MAP_FAILED;
+ p->error = ENOMEM;
+ } else {
+ p->u.mmap.ret = mmap(addr, length, prot, flags, fd, offset);
+ }
+ errno = p->error;
+ return p->u.mmap.ret;
+}
+
static void cleanup_pipe(struct pipe_call *call)
{
if (!call->closed[0])
p = add_history(FAILTEST_CLOSE, file, line, &call);
p->fail = false;
- /* Consume close from failpath. */
- if (failpath)
- if (should_fail(p))
+ /* Consume close from failpath (shouldn't tell us to fail). */
+ if (following_path()) {
+ if (follow_path(p))
abort();
+ }
if (fd < 0)
return close(fd);