Handle EINTR in atomical reads/writes in dump.

[dump.git] / dump / tape.c

diff --git a/dump/tape.c b/dump/tape.c
index 7790cc4e4bd6a30b8a8d6791699383265493195c..c08019865bc2a96f5e4443115e5da081c0d1215a 100644 (file)
--- a/dump/tape.c
+++ b/dump/tape.c
@@ -40,7 +40,7 @@
 
 #ifndef lint
 static const char rcsid[] =
-       "$Id: tape.c,v 1.9 1999/11/21 16:01:47 tiniou Exp $";
+       "$Id: tape.c,v 1.10 2000/01/07 19:24:04 tiniou Exp $";
 #endif /* not lint */
 
 #ifdef __linux__
@@ -1029,8 +1029,10 @@ atomic_read(int fd, void *buf, size_t count)
 {
        int got, need = count;
 
-       while ((got = read(fd, buf, need)) > 0 && (need -= got) > 0)
-               (char *)buf += got;
+       do {
+               while ((got = read(fd, buf, need)) > 0 && (need -= got) > 0)
+                       (char *)buf += got;
+       } while (got == -1 && errno == EINTR);
        return (got < 0 ? got : count - need);
 }
 
@@ -1044,7 +1046,9 @@ atomic_write(int fd, const void *buf, size_t count)
 {
        int got, need = count;
 
-       while ((got = write(fd, buf, need)) > 0 && (need -= got) > 0)
-               (char *)buf += got;
+       do {
+               while ((got = write(fd, buf, need)) > 0 && (need -= got) > 0)
+                       (char *)buf += got;
+       } while (got == -1 && errno == EINTR);
        return (got < 0 ? got : count - need);
 }