]> git.ozlabs.org Git - ccan/blobdiff - ccan/failtest/failtest.c
To compile ccan under DragonFly BSD some additional includes are required.
[ccan] / ccan / failtest / failtest.c
index b25b049edac1d162c663ae58218c75dc3815e0dd..851f2eabf043e4e3f8fa8c53cfe2056431a27220 100644 (file)
@@ -12,6 +12,7 @@
 #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>
@@ -248,7 +249,8 @@ static struct saved_file *save_file(struct saved_file *next, 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;
 }
@@ -293,8 +295,11 @@ static void restore_files(struct saved_file *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);
@@ -395,8 +400,8 @@ static bool should_fail(struct failtest_call *call)
                        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);
                }
        }