diff options
Diffstat (limited to 'daemon/hexdump.c')
-rw-r--r-- | daemon/hexdump.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/daemon/hexdump.c b/daemon/hexdump.c new file mode 100644 index 00000000..9de602a6 --- /dev/null +++ b/daemon/hexdump.c @@ -0,0 +1,60 @@ +/* libguestfs - the guestfsd daemon + * Copyright (C) 2009 Red Hat Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <config.h> + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "daemon.h" +#include "actions.h" + +char * +do_hexdump (const char *path) +{ + int len; + char *buf; + int r; + char *out, *err; + + NEED_ROOT (NULL); + ABS_PATH (path, NULL); + + len = strlen (path) + 9; + buf = malloc (len); + if (!buf) { + reply_with_perror ("malloc"); + return NULL; + } + + snprintf (buf, len, "/sysroot%s", path); + + r = command (&out, &err, "hexdump", "-C", buf, NULL); + free (buf); + if (r == -1) { + reply_with_error ("hexdump: %s: %s", path, err); + free (err); + free (out); + return NULL; + } + + free (err); + + return out; /* caller frees */ +} |