external/gpl2/lvm2/dist/tools/lvmcmdlib.c

   1 /*      $NetBSD$        */
   2
   3 /*
   4  * Copyright (C) 2001-2004 Sistina Software, Inc. All rights reserved.
   5  * Copyright (C) 2004-2009 Red Hat, Inc. All rights reserved.
   6  *
   7  * This file is part of LVM2.
   8  *
   9  * This copyrighted material is made available to anyone wishing to use,
  10  * modify, copy, or redistribute it subject to the terms and conditions
  11  * of the GNU Lesser General Public License v.2.1.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public License
  14  * along with this program; if not, write to the Free Software Foundation,
  15  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  16  */
  17
  18 #include "tools.h"
  19 #include "lvm2cmdline.h"
  20 #include "label.h"
  21 #include "memlock.h"
  22 #include "lvm-version.h"
  23
  24 #include "lvm2cmd.h"
  25
  26 #include <signal.h>
  27 #include <syslog.h>
  28 #include <libgen.h>
  29 #include <sys/stat.h>
  30 #include <time.h>
  31 #include <sys/resource.h>
  32
  33 void *cmdlib_lvm2_init(unsigned static_compile)
  34 {
  35         struct cmd_context *cmd;
  36
  37         lvm_register_commands();
  38
  39         init_is_static(static_compile);
  40         if (!(cmd = init_lvm()))
  41                 return NULL;
  42
  43         return (void *) cmd;
  44 }
  45
  46 int lvm2_run(void *handle, const char *cmdline)
  47 {
  48         int argc, ret, oneoff = 0;
  49         char *args[MAX_ARGS], **argv, *cmdcopy = NULL;
  50         struct cmd_context *cmd;
  51
  52         argv = args;
  53
  54         if (!handle) {
  55                 oneoff = 1;
  56                 if (!(handle = lvm2_init())) {
  57                         log_error("Handle initialisation failed.");
  58                         return ECMD_FAILED;
  59                 }
  60         }
  61
  62         cmd = (struct cmd_context *) handle;
  63
  64         cmd->argv = argv;
  65
  66         if (!(cmdcopy = dm_strdup(cmdline))) {
  67                 log_error("Cmdline copy failed.");
  68                 ret = ECMD_FAILED;
  69                 goto out;
  70         }
  71
  72         if (lvm_split(cmdcopy, &argc, argv, MAX_ARGS) == MAX_ARGS) {
  73                 log_error("Too many arguments.  Limit is %d.", MAX_ARGS);
  74                 ret = EINVALID_CMD_LINE;
  75                 goto out;
  76         }
  77
  78         if (!argc) {
  79                 log_error("No command supplied");
  80                 ret = EINVALID_CMD_LINE;
  81                 goto out;
  82         }
  83
  84         /* FIXME Temporary - move to libdevmapper */
  85         ret = ECMD_PROCESSED;
  86         if (!strcmp(cmdline, "_memlock_inc"))
  87                 memlock_inc_daemon();
  88         else if (!strcmp(cmdline, "_memlock_dec"))
  89                 memlock_dec_daemon();
  90         else
  91                 ret = lvm_run_command(cmd, argc, argv);
  92
  93       out:
  94         dm_free(cmdcopy);
  95
  96         if (oneoff)
  97                 lvm2_exit(handle);
  98
  99         return ret;
 100 }
 101
 102 void lvm2_log_level(void *handle, int level)
 103 {
 104         struct cmd_context *cmd = (struct cmd_context *) handle;
 105
 106         cmd->default_settings.verbose = level - VERBOSE_BASE_LEVEL;
 107
 108         return;
 109 }
 110
 111 void lvm2_log_fn(lvm2_log_fn_t log_fn)
 112 {
 113         init_log_fn(log_fn);
 114 }
 115
 116 void lvm2_exit(void *handle)
 117 {
 118         struct cmd_context *cmd = (struct cmd_context *) handle;
 119
 120         lvm_fin(cmd);
 121 }