commands.c (40553) | commands.c (40775) |
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1/*- 2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * | 1/*- 2 * Copyright (c) 1998 Michael Smith <msmith@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 9 unchanged lines hidden (view full) --- 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * |
26 * $Id: commands.c,v 1.5 1998/10/09 07:09:22 msmith Exp $ | 26 * $Id: commands.c,v 1.6 1998/10/21 20:07:04 msmith Exp $ |
27 */ 28 29#include <stand.h> 30#include <string.h> 31#include <sys/reboot.h> 32 33#include "bootstrap.h" 34 35char *command_errmsg; 36char command_errbuf[256]; /* XXX should have procedural interface for setting, size limit? */ | 27 */ 28 29#include <stand.h> 30#include <string.h> 31#include <sys/reboot.h> 32 33#include "bootstrap.h" 34 35char *command_errmsg; 36char command_errbuf[256]; /* XXX should have procedural interface for setting, size limit? */ |
37 | 37 38 39/* 40 * Help is read from a formatted text file. 41 * 42 * Entries in the file are formatted as 43 44# Ttopic [Ssubtopic] Ddescription 45help 46text 47here 48# 49 50 * 51 * Note that for code simplicity's sake, the above format must be followed 52 * exactly. 53 * 54 * Subtopic entries must immediately follow the topic (this is used to 55 * produce the listing of subtopics). 56 * 57 * If no argument(s) are supplied by the user, the help for 'help' is displayed. 58 */ |
38COMMAND_SET(help, "help", "detailed help", command_help); 39 40static int | 59COMMAND_SET(help, "help", "detailed help", command_help); 60 61static int |
41command_help(int argc, char *argv[]) | 62help_getnext(int fd, char **topic, char **subtopic, char **desc) |
42{ | 63{ |
43 char helppath[80]; /* XXX buffer size? */ | 64 char line[81], *cp, *ep; 65 66 for (;;) { 67 if (fgetstr(line, 80, fd) < 0) 68 return(0); 69 70 if ((strlen(line) < 3) || (line[0] != '#') || (line[1] != ' ')) 71 continue; |
44 | 72 |
73 *topic = *subtopic = *desc = NULL; 74 cp = line + 2; 75 while((cp != NULL) && (*cp != 0)) { 76 ep = strchr(cp, ' '); 77 if ((*cp == 'T') && (*topic == NULL)) { 78 if (ep != NULL) 79 *ep++ = 0; 80 *topic = strdup(cp + 1); 81 } else if ((*cp == 'S') && (*subtopic == NULL)) { 82 if (ep != NULL) 83 *ep++ = 0; 84 *subtopic = strdup(cp + 1); 85 } else if (*cp == 'D') { 86 *desc = strdup(cp + 1); 87 ep = NULL; 88 } 89 cp = ep; 90 } 91 if (*topic == NULL) { 92 if (*subtopic != NULL) 93 free(*subtopic); 94 if (*desc != NULL) 95 free(*desc); 96 continue; 97 } 98 return(1); 99 } 100} 101 102static void 103help_emitsummary(char *topic, char *subtopic, char *desc) 104{ 105 int i; 106 107 pager_output(" "); 108 pager_output(topic); 109 i = strlen(topic); 110 if (subtopic != NULL) { 111 pager_output(" "); 112 pager_output(subtopic); 113 i += strlen(subtopic) + 1; 114 } 115 if (desc != NULL) { 116 do { 117 pager_output(" "); 118 } while (i++ < 30); 119 pager_output(desc); 120 } 121 pager_output("\n"); 122} 123 124 125static int 126command_help(int argc, char *argv[]) 127{ 128 char buf[81]; /* XXX buffer size? */ 129 int hfd, matched, doindex; 130 char *topic, *subtopic, *t, *s, *d; 131 |
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45 /* page the help text from our load path */ | 132 /* page the help text from our load path */ |
46 sprintf(helppath, "%s/boot/boot.help", getenv("loaddev")); 47 printf("%s\n", helppath); 48 if (pager_file(helppath) == -1) | 133 sprintf(buf, "%s/boot/loader.help", getenv("loaddev")); 134 if ((hfd = open(buf, O_RDONLY)) < 0) { |
49 printf("Verbose help not available, use '?' to list commands\n"); | 135 printf("Verbose help not available, use '?' to list commands\n"); |
136 return(CMD_OK); 137 } 138 139 /* pick up request from arguments */ 140 topic = subtopic = NULL; 141 switch(argc) { 142 case 3: 143 subtopic = strdup(argv[2]); 144 case 2: 145 topic = strdup(argv[1]); 146 break; 147 case 1: 148 topic = strdup("help"); 149 break; 150 default: 151 command_errmsg = "usage is 'help <topic> [<subtopic>]"; 152 return(CMD_ERROR); 153 } 154 155 /* magic "index" keyword */ 156 doindex = !strcmp(topic, "index"); 157 matched = doindex; 158 159 /* Scan the helpfile looking for help matching the request */ 160 pager_open(); 161 while(help_getnext(hfd, &t, &s, &d)) { 162 163 if (doindex) { /* dink around formatting */ 164 help_emitsummary(t, s, d); 165 166 } else if (strcmp(topic, t)) { 167 /* topic mismatch */ 168 if(matched) /* nothing more on this topic, stop scanning */ 169 break; 170 171 } else { 172 /* topic matched */ 173 matched = 1; 174 if (((subtopic == NULL) && (s == NULL)) || 175 ((subtopic != NULL) && (s != NULL) && !strcmp(subtopic, s))) { 176 /* exact match, print text */ 177 while((fgetstr(buf, 80, hfd) >= 0) && (buf[0] != '#')) { 178 pager_output(buf); 179 pager_output("\n"); 180 } 181 } else if ((subtopic == NULL) && (s != NULL)) { 182 /* topic match, list subtopics */ 183 help_emitsummary(t, s, d); 184 } 185 } 186 free(t); 187 free(s); 188 free(d); 189 } 190 pager_close(); 191 close(hfd); 192 if (!matched) { 193 sprintf(command_errbuf, "no help available for '%s'", topic); 194 return(CMD_ERROR); 195 } |
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50 return(CMD_OK); 51} 52 | 196 return(CMD_OK); 197} 198 |
199 |
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53COMMAND_SET(commandlist, "?", "list commands", command_commandlist); 54 55static int 56command_commandlist(int argc, char *argv[]) 57{ 58 struct bootblk_command **cmdp; | 200COMMAND_SET(commandlist, "?", "list commands", command_commandlist); 201 202static int 203command_commandlist(int argc, char *argv[]) 204{ 205 struct bootblk_command **cmdp; |
59 int i; | |
60 61 printf("Available commands:\n"); 62 SET_FOREACH(cmdp, Xcommand_set) { 63 if (((*cmdp)->c_name != NULL) && ((*cmdp)->c_desc != NULL)) 64 printf(" %-15s %s\n", (*cmdp)->c_name, (*cmdp)->c_desc); 65 } 66 return(CMD_OK); 67} --- 161 unchanged lines hidden (view full) --- 229 } 230 231 ngets(buf, sizeof(buf)); 232 233 if (name != NULL) 234 setenv(name, buf, 1); 235 return(CMD_OK); 236} | 206 207 printf("Available commands:\n"); 208 SET_FOREACH(cmdp, Xcommand_set) { 209 if (((*cmdp)->c_name != NULL) && ((*cmdp)->c_desc != NULL)) 210 printf(" %-15s %s\n", (*cmdp)->c_name, (*cmdp)->c_desc); 211 } 212 return(CMD_OK); 213} --- 161 unchanged lines hidden (view full) --- 375 } 376 377 ngets(buf, sizeof(buf)); 378 379 if (name != NULL) 380 setenv(name, buf, 1); 381 return(CMD_OK); 382} |
383 384/* 385 * List all disk-like devices 386 */ 387COMMAND_SET(lsdev, "lsdev", NULL, command_lsdev); 388 389static int 390command_lsdev(int argc, char *argv[]) 391{ 392 int verbose, ch, i; 393 char line[80]; 394 395 verbose = 0; 396 optind = 1; 397 while ((ch = getopt(argc, argv, "v")) != -1) { 398 switch(ch) { 399 case 'v': 400 verbose = 1; 401 break; 402 case '?': 403 default: 404 /* getopt has already reported an error */ 405 return(CMD_OK); 406 } 407 } 408 argv += (optind); 409 argc -= (optind); 410 411 pager_open(); 412 for (i = 0; devsw[i] != NULL; i++) { 413 if (devsw[i]->dv_print != NULL){ 414 sprintf(line, "%s @ %p\n", devsw[i]->dv_name, devsw[i]->dv_print); 415 pager_output(line); 416 devsw[i]->dv_print(verbose); 417 } else { 418 sprintf(line, "%s: (unknown)\n", devsw[i]->dv_name); 419 pager_output(line); 420 } 421 } 422 pager_close(); 423 return(CMD_OK); 424} |
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