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https://github.com/libguestfs/libguestfs.git
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95 lines
3.1 KiB
C
95 lines
3.1 KiB
C
/* libguestfs
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* Copyright (C) 2012 Red Hat Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* Test how libguestfs uses the environment, guestfs_create_flags,
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* guestfs_parse_environment, guestfs_parse_environment_list.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include <error.h>
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#include <assert.h>
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#include "guestfs.h"
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#include "guestfs-internal-frontend.h"
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int
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main (int argc, char *argv[])
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{
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guestfs_h *g;
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int r, default_memsize;
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/* What's the default memsize? */
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g = guestfs_create ();
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if (!g) error (EXIT_FAILURE, errno, "guestfs_create");
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default_memsize = guestfs_get_memsize (g);
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if (default_memsize == -1) exit (EXIT_FAILURE);
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guestfs_close (g);
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/* Check that guestfs_create parses the environment. */
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setenv ("LIBGUESTFS_MEMSIZE", "799", 1);
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g = guestfs_create ();
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if (!g) error (EXIT_FAILURE, errno, "guestfs_create");
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assert (guestfs_get_memsize (g) == 799);
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guestfs_close (g);
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/* Check that guestfs_create_flags with no flags parses the environment. */
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setenv ("LIBGUESTFS_MEMSIZE", "798", 1);
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g = guestfs_create_flags (0);
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if (!g) error (EXIT_FAILURE, errno, "guestfs_create_flags");
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assert (guestfs_get_memsize (g) == 798);
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guestfs_close (g);
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/* Check guestfs_create_flags + explicit guestfs_parse_environment. */
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setenv ("LIBGUESTFS_MEMSIZE", "797", 1);
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g = guestfs_create_flags (GUESTFS_CREATE_NO_ENVIRONMENT);
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assert (guestfs_get_memsize (g) == default_memsize);
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if (!g) error (EXIT_FAILURE, errno, "guestfs_create_flags");
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setenv ("LIBGUESTFS_MEMSIZE", "796", 1);
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r = guestfs_parse_environment (g);
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if (r == -1) exit (EXIT_FAILURE);
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assert (guestfs_get_memsize (g) == 796);
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guestfs_close (g);
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/* Check guestfs_parse_environment_list. */
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setenv ("LIBGUESTFS_MEMSIZE", "795", 1);
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g = guestfs_create_flags (GUESTFS_CREATE_NO_ENVIRONMENT);
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assert (guestfs_get_memsize (g) == default_memsize);
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if (!g) error (EXIT_FAILURE, errno, "guestfs_create_flags");
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setenv ("LIBGUESTFS_MEMSIZE", "794", 1);
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const char *local_environment[] = {
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"LIBGUESTFS_MEMSIZE=793",
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"LIBGUESTFS_MEMSIZE_NOT_REALLY_A_VARIABLE=1",
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"FOO=bar",
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"HOME=/homes",
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"BLAH",
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NULL
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};
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r = guestfs_parse_environment_list (g, (char **) local_environment);
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if (r == -1) exit (EXIT_FAILURE);
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assert (guestfs_get_memsize (g) == 793);
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guestfs_close (g);
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exit (EXIT_SUCCESS);
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}
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