Files
libguestfs/fish/more.c
Richard W.M. Jones ec3b75e5ff Rearrange internal header files.
This commit rearranges the internal header files.

"src/guestfs-internal.h" is just for the library, as before.

"src/guestfs-internal-frontend.h" is for use by all library, bindings,
tools C code, but NOT the daemon.

"src/guestfs-internal-all.h" is for use by all C code including the
daemon.

This is just code motion, but it has some important consequences:

(1) We can use the CLEANUP_* macros in bindings and tools code.

(2) We can get rid of TMP_TEMPLATE_ON_STACK.

(3) We will (in future) be able to stop bindings and tools code from
using the safe_* allocation functions (which are NOT safe to use
outside the library alone).
2013-02-01 14:07:25 +00:00

100 lines
2.2 KiB
C

/* guestfish - the filesystem interactive shell
* Copyright (C) 2009-2012 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
#include <inttypes.h>
#include <libintl.h>
#include "fish.h"
int
run_more (const char *cmd, size_t argc, char *argv[])
{
TMP_TEMPLATE_ON_STACK (g, filename);
char buf[256];
char *remote;
const char *pager;
int r, fd;
if (argc != 1) {
fprintf (stderr, _("use '%s filename' to page a file\n"), cmd);
return -1;
}
/* Choose a pager. */
if (STRCASEEQ (cmd, "less"))
pager = "less";
else {
pager = getenv ("PAGER");
if (pager == NULL)
pager = "more";
}
remote = argv[0];
/* Allow win:... prefix on remote. */
remote = win_prefix (remote);
if (remote == NULL)
return -1;
/* Download the file and write it to a temporary. */
fd = mkstemp (filename);
if (fd == -1) {
perror ("mkstemp");
free (remote);
return -1;
}
snprintf (buf, sizeof buf, "/dev/fd/%d", fd);
if (guestfs_download (g, remote, buf) == -1) {
close (fd);
unlink (filename);
free (remote);
return -1;
}
if (close (fd) == -1) {
perror (filename);
unlink (filename);
free (remote);
return -1;
}
/* View it. */
/* XXX Safe? */
snprintf (buf, sizeof buf, "%s %s", pager, filename);
r = system (buf);
unlink (filename);
if (r != 0) {
perror (buf);
free (remote);
return -1;
}
free (remote);
return 0;
}