From: Karel Zak <kzak@redhat.com>
Date: Tue, 2 Aug 2011 11:53:41 +0000 (+0200)
Subject: include: [writeall] add fwrite_all()
X-Git-Tag: v2.20-rc2~121
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=330f543985cb99e4487d59dbe35ce778382c8f6f;p=thirdparty%2Futil-linux.git

include: [writeall] add fwrite_all()

Signed-off-by: Karel Zak <kzak@redhat.com>
---

diff --git a/include/writeall.h b/include/writeall.h
index 20207076d8..6aa49272af 100644
--- a/include/writeall.h
+++ b/include/writeall.h
@@ -7,7 +7,7 @@
 
 static inline int write_all(int fd, const void *buf, size_t count)
 {
-	while(count) {
+	while (count) {
 		ssize_t tmp;
 
 		errno = 0;
@@ -24,4 +24,24 @@ static inline int write_all(int fd, const void *buf, size_t count)
 	return 0;
 }
 
+static inline int fwrite_all(const void *ptr, size_t size,
+			     size_t nmemb, FILE *stream)
+{
+	while (nmemb) {
+		size_t tmp;
+
+		errno = 0;
+		tmp = fwrite(ptr, size, nmemb, stream);
+		if (tmp > 0) {
+			nmemb -= tmp;
+			if (nmemb)
+				ptr += (tmp * size);
+		} else if (errno != EINTR && errno != EAGAIN)
+			return -1;
+		if (errno == EAGAIN)	/* Try later, *sigh* */
+			usleep(10000);
+	}
+	return 0;
+}
+
 #endif /* UTIL_LINUX_WRITEALL_H */