xio: add ioexact operations

Break this out so that we only need to have sigint non-static where
it is really needed.

Signed-off-by: Daniel Borkmann <dborkman@redhat.com>

1 files changed, 0 insertions, 48 deletions

diff --git a/xio.c b/xio.c
index efc4ed4..be9d4cc 100644
--- a/xio.c
+++ b/xio.c
@@ -109,51 +109,3 @@ ssize_t write_or_die(int fd, const void *buf, size_t len)
 
 	return ret;
 }
-
-extern volatile sig_atomic_t sigint;
-
-ssize_t read_exact(int fd, void *buf, size_t len, int mayexit)
-{
-	ssize_t num = 0, written;
-
-	while (len > 0 && !sigint) {
-		if ((written = read(fd, buf, len)) < 0) {
-			if (errno == EAGAIN && num > 0)
-				continue;
-			if (mayexit)
-				return -1;
-			else
-				continue;
-		}
-		if (!written)
-			return 0;
-		len -= written;
-		buf += written;
-		num += written;
-	}
-
-	return num;
-}
-
-ssize_t write_exact(int fd, void *buf, size_t len, int mayexit)
-{
-	ssize_t num = 0, written;
-
-	while (len > 0 && !sigint) {
-		if ((written = write(fd, buf, len)) < 0) {
-			if (errno == EAGAIN && num > 0)
-				continue;
-			if (mayexit)
-				return -1;
-			else
-				continue;
-		}
-		if (!written)
-			return 0;
-		len -= written;
-		buf += written;
-		num += written;
-	}
-
-	return num;
-}