packaging: Add contrib installation

[platform/upstream/git.git] / copy.c

diff --git a/copy.c b/copy.c
index a7f58fd..4de6a11 100644 (file)
--- a/copy.c
+++ b/copy.c
@@ -4,34 +4,14 @@ int copy_fd(int ifd, int ofd)
 {
        while (1) {
                char buffer[8192];
-               char *buf = buffer;
                ssize_t len = xread(ifd, buffer, sizeof(buffer));
                if (!len)
                        break;
-               if (len < 0) {
-                       int read_error = errno;
-                       close(ifd);
-                       return error("copy-fd: read returned %s",
-                                    strerror(read_error));
-               }
-               while (len) {
-                       int written = xwrite(ofd, buf, len);
-                       if (written > 0) {
-                               buf += written;
-                               len -= written;
-                       }
-                       else if (!written) {
-                               close(ifd);
-                               return error("copy-fd: write returned 0");
-                       } else {
-                               int write_error = errno;
-                               close(ifd);
-                               return error("copy-fd: write returned %s",
-                                            strerror(write_error));
-                       }
-               }
+               if (len < 0)
+                       return COPY_READ_ERROR;
+               if (write_in_full(ofd, buffer, len) < 0)
+                       return COPY_WRITE_ERROR;
        }
-       close(ifd);
        return 0;
 }
 
@@ -60,8 +40,17 @@ int copy_file(const char *dst, const char *src, int mode)
                return fdo;
        }
        status = copy_fd(fdi, fdo);
+       switch (status) {
+       case COPY_READ_ERROR:
+               error_errno("copy-fd: read returned");
+               break;
+       case COPY_WRITE_ERROR:
+               error_errno("copy-fd: write returned");
+               break;
+       }
+       close(fdi);
        if (close(fdo) != 0)
-               return error("%s: close error: %s", dst, strerror(errno));
+               return error_errno("%s: close error", dst);
 
        if (!status && adjust_shared_perm(dst))
                return -1;