diff options
Diffstat (limited to 'sys/boot/common/commands.c')
| -rw-r--r-- | sys/boot/common/commands.c | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/sys/boot/common/commands.c b/sys/boot/common/commands.c new file mode 100644 index 0000000..af6a475 --- /dev/null +++ b/sys/boot/common/commands.c @@ -0,0 +1,155 @@ +/*- + * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $Id$ + */ + +#include <stand.h> +#include <string.h> +#include <sys/reboot.h> + +#include "bootstrap.h" + +char *command_errmsg; +char command_errbuf[256]; /* XXX should have procedural interface for setting, size limit? */ + +COMMAND_SET(help, "help", "detailed help", command_help); + +static int +command_help(int argc, char *argv[]) +{ + char helppath[80]; /* XXX buffer size? */ + + /* page the help text from our load path */ + sprintf(helppath, "%s/boot.help", getenv("loaddev")); + printf("%s\n", helppath); + if (pager_file(helppath) == -1) + printf("Verbose help not available, use '?' to list commands\n"); + return(CMD_OK); +} + +COMMAND_SET(commandlist, "?", "list commands", command_commandlist); + +static int +command_commandlist(int argc, char *argv[]) +{ + struct bootblk_command **cmdp; + int i; + + printf("Available commands:\n"); + cmdp = (struct bootblk_command **)Xcommand_set.ls_items; + for (i = 0; i < Xcommand_set.ls_length; i++) + if (cmdp[i]->c_name != NULL) + printf(" %-15s %s\n", cmdp[i]->c_name, cmdp[i]->c_desc); + return(CMD_OK); +} + +/* + * XXX set/show should become set/echo if we have variable + * substitution happening. + */ + +COMMAND_SET(show, "show", "show variable(s)", command_show); + +static int +command_show(int argc, char *argv[]) +{ + struct env_var *ev; + char *cp; + + if (argc < 2) { + /* + * With no arguments, print everything. + */ + pager_open(); + for (ev = environ; ev != NULL; ev = ev->ev_next) { + pager_output(ev->ev_name); + cp = getenv(ev->ev_name); + if (cp != NULL) { + pager_output("="); + pager_output(cp); + } + pager_output("\n"); + } + pager_close(); + } else { + if ((cp = getenv(argv[1])) != NULL) { + printf("%s\n", cp); + } else { + sprintf(command_errbuf, "variable '%s' not found", argv[1]); + return(CMD_ERROR); + } + } + return(CMD_OK); +} + +COMMAND_SET(set, "set", "set a variable", command_set); + +static int +command_set(int argc, char *argv[]) +{ + int err; + + if (argc != 2) { + command_errmsg = "wrong number of arguments"; + return(CMD_ERROR); + } else { + if ((err = putenv(argv[1])) != 0) { + command_errmsg = strerror(err); + return(CMD_ERROR); + } + } + return(CMD_OK); +} + +COMMAND_SET(unset, "unset", "unset a variable", command_unset); + +static int +command_unset(int argc, char *argv[]) +{ + int err; + + if (argc != 2) { + command_errmsg = "wrong number of arguments"; + return(CMD_ERROR); + } else { + if ((err = unsetenv(argv[1])) != 0) { + command_errmsg = strerror(err); + return(CMD_ERROR); + } + } + return(CMD_OK); +} + +COMMAND_SET(panic, "panic", "test panic", command_panic); + +static int +command_panic(int argc, char *argv[]) +{ + char *cp; + + cp = unargv(argc - 1, argv + 1); + panic(cp); +} |
