X-Git-Url: https://git.tokkee.org/?a=blobdiff_plain;f=copy.c;h=e54d15aced7595ccb11423b0de121db9051ad1f3;hb=6aa2de51511bf847f6e69dfcfc9e7d977ef171a6;hp=c225d1b0ff0a67e637f7200ab5c2a917b550af4f;hpb=36a189c86e4a4ad75a75f598eedfe2defab3cbf3;p=git.git

diff --git a/copy.c b/copy.c
index c225d1b0f..e54d15ace 100644
--- a/copy.c
+++ b/copy.c
@@ -9,8 +9,7 @@ int copy_fd(int ifd, int ofd)
 		if (!len)
 			break;
 		if (len < 0) {
-			int read_error;
-			read_error = errno;
+			int read_error = errno;
 			close(ifd);
 			return error("copy-fd: read returned %s",
 				     strerror(read_error));
@@ -25,12 +24,34 @@ int copy_fd(int ifd, int ofd)
 				close(ifd);
 				return error("copy-fd: write returned 0");
 			} else {
+				int write_error = errno;
 				close(ifd);
 				return error("copy-fd: write returned %s",
-					     strerror(errno));
+					     strerror(write_error));
 			}
 		}
 	}
 	close(ifd);
 	return 0;
 }
+
+int copy_file(const char *dst, const char *src, int mode)
+{
+	int fdi, fdo, status;
+
+	mode = (mode & 0111) ? 0777 : 0666;
+	if ((fdi = open(src, O_RDONLY)) < 0)
+		return fdi;
+	if ((fdo = open(dst, O_WRONLY | O_CREAT | O_EXCL, mode)) < 0) {
+		close(fdi);
+		return fdo;
+	}
+	status = copy_fd(fdi, fdo);
+	if (close(fdo) != 0)
+		return error("%s: close error: %s", dst, strerror(errno));
+
+	if (!status && adjust_shared_perm(dst))
+		return -1;
+
+	return status;
+}