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/*
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* Copyright (c) 2003-2005 Silicon Graphics, Inc.
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it would 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
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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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 <ctype.h> |
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#include <errno.h> |
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#include <sys/time.h> |
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#include <getopt.h> |
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|
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#include "cmd.h" |
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#include "block/aio.h" |
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#include "main-loop.h" |
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|
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#define _(x) x /* not gettext support yet */ |
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/* from libxcmd/command.c */
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cmdinfo_t *cmdtab; |
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int ncmds;
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static argsfunc_t args_func;
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static checkfunc_t check_func;
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static int ncmdline; |
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static char **cmdline; |
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|
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static int |
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compare(const void *a, const void *b) |
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{
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return strcmp(((const cmdinfo_t *)a)->name, |
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((const cmdinfo_t *)b)->name);
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} |
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|
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void add_command(const cmdinfo_t *ci) |
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{
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cmdtab = g_realloc((void *)cmdtab, ++ncmds * sizeof(*cmdtab)); |
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cmdtab[ncmds - 1] = *ci;
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qsort(cmdtab, ncmds, sizeof(*cmdtab), compare);
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} |
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|
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static int |
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check_command( |
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const cmdinfo_t *ci)
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{
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if (check_func)
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return check_func(ci);
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return 1; |
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} |
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|
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void
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add_check_command( |
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checkfunc_t cf) |
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{
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check_func = cf; |
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} |
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int
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command_usage( |
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const cmdinfo_t *ci)
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{
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printf("%s %s -- %s\n", ci->name, ci->args, ci->oneline);
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return 0; |
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} |
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int
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command( |
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const cmdinfo_t *ct,
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int argc,
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char **argv)
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{
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char *cmd = argv[0]; |
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if (!check_command(ct))
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return 0; |
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if (argc-1 < ct->argmin || (ct->argmax != -1 && argc-1 > ct->argmax)) { |
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if (ct->argmax == -1) |
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fprintf(stderr, |
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_("bad argument count %d to %s, expected at least %d arguments\n"),
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argc-1, cmd, ct->argmin);
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else if (ct->argmin == ct->argmax) |
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fprintf(stderr, |
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_("bad argument count %d to %s, expected %d arguments\n"),
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argc-1, cmd, ct->argmin);
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else
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fprintf(stderr, |
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_("bad argument count %d to %s, expected between %d and %d arguments\n"),
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argc-1, cmd, ct->argmin, ct->argmax);
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return 0; |
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} |
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optind = 0;
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return ct->cfunc(argc, argv);
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} |
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const cmdinfo_t *
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find_command( |
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const char *cmd) |
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{
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cmdinfo_t *ct; |
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for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++) {
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if (strcmp(ct->name, cmd) == 0 || |
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(ct->altname && strcmp(ct->altname, cmd) == 0))
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return (const cmdinfo_t *)ct; |
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} |
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return NULL; |
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} |
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void add_user_command(char *optarg) |
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{
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cmdline = g_realloc(cmdline, ++ncmdline * sizeof(char *)); |
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cmdline[ncmdline-1] = optarg;
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} |
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static int |
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args_command( |
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int index)
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{
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if (args_func)
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return args_func(index);
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return 0; |
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} |
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void
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add_args_command( |
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argsfunc_t af) |
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{
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args_func = af; |
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} |
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static void prep_fetchline(void *opaque) |
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{
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int *fetchable = opaque;
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qemu_set_fd_handler(STDIN_FILENO, NULL, NULL, NULL); |
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*fetchable= 1;
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} |
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static char *get_prompt(void); |
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void command_loop(void) |
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{
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int c, i, j = 0, done = 0, fetchable = 0, prompted = 0; |
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char *input;
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char **v;
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const cmdinfo_t *ct;
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for (i = 0; !done && i < ncmdline; i++) { |
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input = strdup(cmdline[i]); |
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if (!input) {
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fprintf(stderr, _("cannot strdup command '%s': %s\n"),
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cmdline[i], strerror(errno)); |
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exit(1);
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} |
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v = breakline(input, &c); |
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if (c) {
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ct = find_command(v[0]);
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if (ct) {
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if (ct->flags & CMD_FLAG_GLOBAL) {
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done = command(ct, c, v); |
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} else {
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j = 0;
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while (!done && (j = args_command(j))) {
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done = command(ct, c, v); |
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} |
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} |
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} else {
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fprintf(stderr, _("command \"%s\" not found\n"), v[0]); |
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} |
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} |
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doneline(input, v); |
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} |
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if (cmdline) {
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g_free(cmdline); |
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return;
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} |
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while (!done) {
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if (!prompted) {
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printf("%s", get_prompt());
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fflush(stdout); |
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qemu_set_fd_handler(STDIN_FILENO, prep_fetchline, NULL, &fetchable);
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prompted = 1;
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} |
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main_loop_wait(false);
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if (!fetchable) {
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continue;
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} |
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input = fetchline(); |
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if (input == NULL) { |
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break;
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} |
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v = breakline(input, &c); |
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if (c) {
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ct = find_command(v[0]);
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if (ct) {
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done = command(ct, c, v); |
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} else {
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fprintf(stderr, _("command \"%s\" not found\n"), v[0]); |
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} |
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} |
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doneline(input, v); |
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prompted = 0;
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fetchable = 0;
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} |
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qemu_set_fd_handler(STDIN_FILENO, NULL, NULL, NULL); |
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} |
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/* from libxcmd/input.c */
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#if defined(ENABLE_READLINE)
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# include <readline/history.h> |
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# include <readline/readline.h> |
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#elif defined(ENABLE_EDITLINE)
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# include <histedit.h> |
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#endif
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static char * |
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get_prompt(void)
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{
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static char prompt[FILENAME_MAX + 2 /*"> "*/ + 1 /*"\0"*/ ]; |
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if (!prompt[0]) |
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snprintf(prompt, sizeof(prompt), "%s> ", progname); |
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return prompt;
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} |
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|
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#if defined(ENABLE_READLINE)
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char *
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fetchline(void)
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{
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char *line;
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|
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line = readline(get_prompt()); |
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if (line && *line)
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add_history(line); |
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return line;
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} |
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#elif defined(ENABLE_EDITLINE)
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static char *el_get_prompt(EditLine *e) { return get_prompt(); } |
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char *
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fetchline(void)
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{
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static EditLine *el;
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static History *hist;
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HistEvent hevent; |
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char *line;
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int count;
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|
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if (!el) {
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hist = history_init(); |
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history(hist, &hevent, H_SETSIZE, 100);
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el = el_init(progname, stdin, stdout, stderr); |
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el_source(el, NULL);
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el_set(el, EL_SIGNAL, 1);
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el_set(el, EL_PROMPT, el_get_prompt); |
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el_set(el, EL_HIST, history, (const char *)hist); |
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} |
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line = strdup(el_gets(el, &count)); |
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if (line) {
|
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if (count > 0) |
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line[count-1] = '\0'; |
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if (*line)
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history(hist, &hevent, H_ENTER, line); |
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} |
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return line;
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} |
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#else
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# define MAXREADLINESZ 1024 |
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char *
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fetchline(void)
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{
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char *p, *line = malloc(MAXREADLINESZ);
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|
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if (!line)
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return NULL; |
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if (!fgets(line, MAXREADLINESZ, stdin)) {
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free(line); |
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return NULL; |
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} |
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p = line + strlen(line); |
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if (p != line && p[-1] == '\n') |
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p[-1] = '\0'; |
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return line;
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} |
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#endif
|
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|
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static char *qemu_strsep(char **input, const char *delim) |
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{
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char *result = *input;
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if (result != NULL) { |
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char *p;
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|
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for (p = result; *p != '\0'; p++) { |
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if (strchr(delim, *p)) {
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break;
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} |
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} |
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if (*p == '\0') { |
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*input = NULL;
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} else {
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*p = '\0';
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*input = p + 1;
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} |
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} |
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return result;
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} |
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|
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char **breakline(char *input, int *count) |
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{
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int c = 0; |
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char *p;
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char **rval = calloc(sizeof(char *), 1); |
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char **tmp;
|
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|
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while (rval && (p = qemu_strsep(&input, " ")) != NULL) { |
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if (!*p) {
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continue;
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} |
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c++; |
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tmp = realloc(rval, sizeof(*rval) * (c + 1)); |
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if (!tmp) {
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free(rval); |
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rval = NULL;
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c = 0;
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break;
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} else {
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rval = tmp; |
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} |
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rval[c - 1] = p;
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rval[c] = NULL;
|
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} |
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*count = c; |
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return rval;
|
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} |
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|
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void
|
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doneline( |
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char *input,
|
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char **vec)
|
| 359 |
{
|
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free(input); |
| 361 |
free(vec); |
| 362 |
} |
| 363 |
|
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#define EXABYTES(x) ((long long)(x) << 60) |
| 365 |
#define PETABYTES(x) ((long long)(x) << 50) |
| 366 |
#define TERABYTES(x) ((long long)(x) << 40) |
| 367 |
#define GIGABYTES(x) ((long long)(x) << 30) |
| 368 |
#define MEGABYTES(x) ((long long)(x) << 20) |
| 369 |
#define KILOBYTES(x) ((long long)(x) << 10) |
| 370 |
|
| 371 |
long long |
| 372 |
cvtnum( |
| 373 |
char *s)
|
| 374 |
{
|
| 375 |
long long i; |
| 376 |
char *sp;
|
| 377 |
int c;
|
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|
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i = strtoll(s, &sp, 0);
|
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if (i == 0 && sp == s) |
| 381 |
return -1LL; |
| 382 |
if (*sp == '\0') |
| 383 |
return i;
|
| 384 |
|
| 385 |
if (sp[1] != '\0') |
| 386 |
return -1LL; |
| 387 |
|
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c = qemu_tolower(*sp); |
| 389 |
switch (c) {
|
| 390 |
default:
|
| 391 |
return i;
|
| 392 |
case 'k': |
| 393 |
return KILOBYTES(i);
|
| 394 |
case 'm': |
| 395 |
return MEGABYTES(i);
|
| 396 |
case 'g': |
| 397 |
return GIGABYTES(i);
|
| 398 |
case 't': |
| 399 |
return TERABYTES(i);
|
| 400 |
case 'p': |
| 401 |
return PETABYTES(i);
|
| 402 |
case 'e': |
| 403 |
return EXABYTES(i);
|
| 404 |
} |
| 405 |
return -1LL; |
| 406 |
} |
| 407 |
|
| 408 |
#define TO_EXABYTES(x) ((x) / EXABYTES(1)) |
| 409 |
#define TO_PETABYTES(x) ((x) / PETABYTES(1)) |
| 410 |
#define TO_TERABYTES(x) ((x) / TERABYTES(1)) |
| 411 |
#define TO_GIGABYTES(x) ((x) / GIGABYTES(1)) |
| 412 |
#define TO_MEGABYTES(x) ((x) / MEGABYTES(1)) |
| 413 |
#define TO_KILOBYTES(x) ((x) / KILOBYTES(1)) |
| 414 |
|
| 415 |
void
|
| 416 |
cvtstr( |
| 417 |
double value,
|
| 418 |
char *str,
|
| 419 |
size_t size) |
| 420 |
{
|
| 421 |
char *trim;
|
| 422 |
const char *suffix; |
| 423 |
|
| 424 |
if (value >= EXABYTES(1)) { |
| 425 |
suffix = " EiB";
|
| 426 |
snprintf(str, size - 4, "%.3f", TO_EXABYTES(value)); |
| 427 |
} else if (value >= PETABYTES(1)) { |
| 428 |
suffix = " PiB";
|
| 429 |
snprintf(str, size - 4, "%.3f", TO_PETABYTES(value)); |
| 430 |
} else if (value >= TERABYTES(1)) { |
| 431 |
suffix = " TiB";
|
| 432 |
snprintf(str, size - 4, "%.3f", TO_TERABYTES(value)); |
| 433 |
} else if (value >= GIGABYTES(1)) { |
| 434 |
suffix = " GiB";
|
| 435 |
snprintf(str, size - 4, "%.3f", TO_GIGABYTES(value)); |
| 436 |
} else if (value >= MEGABYTES(1)) { |
| 437 |
suffix = " MiB";
|
| 438 |
snprintf(str, size - 4, "%.3f", TO_MEGABYTES(value)); |
| 439 |
} else if (value >= KILOBYTES(1)) { |
| 440 |
suffix = " KiB";
|
| 441 |
snprintf(str, size - 4, "%.3f", TO_KILOBYTES(value)); |
| 442 |
} else {
|
| 443 |
suffix = " bytes";
|
| 444 |
snprintf(str, size - 6, "%f", value); |
| 445 |
} |
| 446 |
|
| 447 |
trim = strstr(str, ".000");
|
| 448 |
if (trim) {
|
| 449 |
strcpy(trim, suffix); |
| 450 |
} else {
|
| 451 |
strcat(str, suffix); |
| 452 |
} |
| 453 |
} |
| 454 |
|
| 455 |
struct timeval
|
| 456 |
tsub(struct timeval t1, struct timeval t2) |
| 457 |
{
|
| 458 |
t1.tv_usec -= t2.tv_usec; |
| 459 |
if (t1.tv_usec < 0) { |
| 460 |
t1.tv_usec += 1000000;
|
| 461 |
t1.tv_sec--; |
| 462 |
} |
| 463 |
t1.tv_sec -= t2.tv_sec; |
| 464 |
return t1;
|
| 465 |
} |
| 466 |
|
| 467 |
double
|
| 468 |
tdiv(double value, struct timeval tv) |
| 469 |
{
|
| 470 |
return value / ((double)tv.tv_sec + ((double)tv.tv_usec / 1000000.0)); |
| 471 |
} |
| 472 |
|
| 473 |
#define HOURS(sec) ((sec) / (60 * 60)) |
| 474 |
#define MINUTES(sec) (((sec) % (60 * 60)) / 60) |
| 475 |
#define SECONDS(sec) ((sec) % 60) |
| 476 |
|
| 477 |
void
|
| 478 |
timestr( |
| 479 |
struct timeval *tv,
|
| 480 |
char *ts,
|
| 481 |
size_t size, |
| 482 |
int format)
|
| 483 |
{
|
| 484 |
double usec = (double)tv->tv_usec / 1000000.0; |
| 485 |
|
| 486 |
if (format & TERSE_FIXED_TIME) {
|
| 487 |
if (!HOURS(tv->tv_sec)) {
|
| 488 |
snprintf(ts, size, "%u:%02u.%02u",
|
| 489 |
(unsigned int) MINUTES(tv->tv_sec), |
| 490 |
(unsigned int) SECONDS(tv->tv_sec), |
| 491 |
(unsigned int) (usec * 100)); |
| 492 |
return;
|
| 493 |
} |
| 494 |
format |= VERBOSE_FIXED_TIME; /* fallback if hours needed */
|
| 495 |
} |
| 496 |
|
| 497 |
if ((format & VERBOSE_FIXED_TIME) || tv->tv_sec) {
|
| 498 |
snprintf(ts, size, "%u:%02u:%02u.%02u",
|
| 499 |
(unsigned int) HOURS(tv->tv_sec), |
| 500 |
(unsigned int) MINUTES(tv->tv_sec), |
| 501 |
(unsigned int) SECONDS(tv->tv_sec), |
| 502 |
(unsigned int) (usec * 100)); |
| 503 |
} else {
|
| 504 |
snprintf(ts, size, "0.%04u sec", (unsigned int) (usec * 10000)); |
| 505 |
} |
| 506 |
} |
| 507 |
|
| 508 |
|
| 509 |
/* from libxcmd/quit.c */
|
| 510 |
|
| 511 |
static cmdinfo_t quit_cmd;
|
| 512 |
|
| 513 |
/* ARGSUSED */
|
| 514 |
static int |
| 515 |
quit_f( |
| 516 |
int argc,
|
| 517 |
char **argv)
|
| 518 |
{
|
| 519 |
return 1; |
| 520 |
} |
| 521 |
|
| 522 |
void
|
| 523 |
quit_init(void)
|
| 524 |
{
|
| 525 |
quit_cmd.name = _("quit");
|
| 526 |
quit_cmd.altname = _("q");
|
| 527 |
quit_cmd.cfunc = quit_f; |
| 528 |
quit_cmd.argmin = -1;
|
| 529 |
quit_cmd.argmax = -1;
|
| 530 |
quit_cmd.flags = CMD_FLAG_GLOBAL; |
| 531 |
quit_cmd.oneline = _("exit the program");
|
| 532 |
|
| 533 |
add_command(&quit_cmd); |
| 534 |
} |
| 535 |
|
| 536 |
/* from libxcmd/help.c */
|
| 537 |
|
| 538 |
static cmdinfo_t help_cmd;
|
| 539 |
static void help_onecmd(const char *cmd, const cmdinfo_t *ct); |
| 540 |
static void help_oneline(const char *cmd, const cmdinfo_t *ct); |
| 541 |
|
| 542 |
static void |
| 543 |
help_all(void)
|
| 544 |
{
|
| 545 |
const cmdinfo_t *ct;
|
| 546 |
|
| 547 |
for (ct = cmdtab; ct < &cmdtab[ncmds]; ct++)
|
| 548 |
help_oneline(ct->name, ct); |
| 549 |
printf(_("\nUse 'help commandname' for extended help.\n"));
|
| 550 |
} |
| 551 |
|
| 552 |
static int |
| 553 |
help_f( |
| 554 |
int argc,
|
| 555 |
char **argv)
|
| 556 |
{
|
| 557 |
const cmdinfo_t *ct;
|
| 558 |
|
| 559 |
if (argc == 1) { |
| 560 |
help_all(); |
| 561 |
return 0; |
| 562 |
} |
| 563 |
ct = find_command(argv[1]);
|
| 564 |
if (ct == NULL) { |
| 565 |
printf(_("command %s not found\n"), argv[1]); |
| 566 |
return 0; |
| 567 |
} |
| 568 |
help_onecmd(argv[1], ct);
|
| 569 |
return 0; |
| 570 |
} |
| 571 |
|
| 572 |
static void |
| 573 |
help_onecmd( |
| 574 |
const char *cmd, |
| 575 |
const cmdinfo_t *ct)
|
| 576 |
{
|
| 577 |
help_oneline(cmd, ct); |
| 578 |
if (ct->help)
|
| 579 |
ct->help(); |
| 580 |
} |
| 581 |
|
| 582 |
static void |
| 583 |
help_oneline( |
| 584 |
const char *cmd, |
| 585 |
const cmdinfo_t *ct)
|
| 586 |
{
|
| 587 |
if (cmd)
|
| 588 |
printf("%s ", cmd);
|
| 589 |
else {
|
| 590 |
printf("%s ", ct->name);
|
| 591 |
if (ct->altname)
|
| 592 |
printf("(or %s) ", ct->altname);
|
| 593 |
} |
| 594 |
if (ct->args)
|
| 595 |
printf("%s ", ct->args);
|
| 596 |
printf("-- %s\n", ct->oneline);
|
| 597 |
} |
| 598 |
|
| 599 |
void
|
| 600 |
help_init(void)
|
| 601 |
{
|
| 602 |
help_cmd.name = _("help");
|
| 603 |
help_cmd.altname = _("?");
|
| 604 |
help_cmd.cfunc = help_f; |
| 605 |
help_cmd.argmin = 0;
|
| 606 |
help_cmd.argmax = 1;
|
| 607 |
help_cmd.flags = CMD_FLAG_GLOBAL; |
| 608 |
help_cmd.args = _("[command]");
|
| 609 |
help_cmd.oneline = _("help for one or all commands");
|
| 610 |
|
| 611 |
add_command(&help_cmd); |
| 612 |
} |