1 /* libguestfs - the guestfsd daemon
2 * Copyright (C) 2009 Red Hat Inc.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
27 #include "../src/guestfs_protocol.h"
32 do_fill (int c, int len, const char *path)
40 if (c < 0 || c > 255) {
41 reply_with_error ("%d: byte number must be in range 0..255", c);
44 memset (buf, c, BUFSIZ);
46 reply_with_error ("%d: length is < 0", len);
49 len_sz = (size_t) len;
52 fd = open (path, O_WRONLY | O_CREAT | O_NOCTTY, 0666);
56 reply_with_perror ("open: %s", path);
62 r = write (fd, buf, len_sz - n < BUFSIZ ? len_sz - n : BUFSIZ);
64 reply_with_perror ("write: %s", path);
71 if (close (fd) == -1) {
72 reply_with_perror ("close: %s", path);
80 do_fill_pattern (const char *pattern, int len, const char *path)
82 size_t patlen = strlen (pattern);
85 reply_with_error ("pattern string must be non-empty");
90 reply_with_error ("%d: length is < 0", len);
93 size_t len_sz = (size_t) len;
97 fd = open (path, O_WRONLY | O_CREAT | O_NOCTTY, 0666);
101 reply_with_perror ("open: %s", path);
105 /* XXX This implementation won't be very efficient for large files. */
108 size_t wrlen = len_sz - n < patlen ? len_sz - n : patlen;
109 if (xwrite (fd, pattern, wrlen) == -1) {
110 reply_with_perror ("write: %s", path);
117 if (close (fd) == -1) {
118 reply_with_perror ("close: %s", path);