Nuke src/usr.bin/help in favor of projects/sccs/help (repo copied).

svn path=/head/; revision=99171

usr.bin/help/Makefile

@@ -1,6 +0,0 @@
-# $FreeBSD$
-
-PROG=	help
-NOMAN=	noman
-
-.include <bsd.prog.mk>

usr.bin/help/help.c

@@ -1,168 +0,0 @@
-/*
- * Author:	J. Mallett <jmallett@FreeBSD.org>
- * Date:	May 22, 2002
- * Program:	help
- * Description:
- * 	Displays help from files in the format used by SCCS.
- *
- * This file is in the public domain.
- *
- * $FreeBSD$
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/types.h>
-#include <ctype.h>
-#include <err.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-
-/*
- * Base path to the help files.
- */
-#define	_PATH_LIBHELP	"/usr/lib/help"
-
-/*
- * The file we check if all else fails.
- */
-#define	_PATH_DEFAULT	_PATH_LIBHELP "/default"
-
-/*
- * The file we check for command help.
- */
-#define	_PATH_COMMANDS	_PATH_LIBHELP "/cmds"
-
-int help(const char *);
-
-int
-main(int argc, char *argv[])
-{
-	char *key;
-	int i, rv;
-
-	rv = 0;
-
-	if (argc == 1) {
-		size_t len;
-
-		(void)printf("Enter the message number or SCCS command name: ");
-		if ((key = fgetln(stdin, &len)) == NULL) {
-			err(1, NULL);
-		}
-		key[len - 1] = '\0';
-		return help(key);
-	}
-	argc--;
-	argv++;
-
-	for (i = 0; i < argc; i++) {
-		/*
-		 * If no error occurred this time, rv becomes 1.
-		 */
-		if (help(argv[i]) == 0) {
-			rv = 1;
-		}
-	}
-
-	/*
-	 * Return 0 if at least one help() worked.  Return 1 else.
-	 */
-	return rv ? 0 : 1;
-}
-
-/*
- * Function:	help
- * Returns:	0 if no error occurrs, 1 otherwise.
- * Arguments:	key -- The key we are looking up help for.
- * Description:
- * 	Looks up the help for a given key.
- */
-int
-help(const char *key)
-{
-	FILE *helpfile;
-	char path[PATH_MAX];
-	char *keybase, *p;
-	const char *keyname, *keynumber;
-	int helping, found;
-	size_t len, numlen;
-
-	found = helping = 0;
-
-	keyname = key;
-	keybase = strdup(keyname);
-	if (keybase == NULL) {
-		err(1, NULL);
-	}
-	p = keybase;
-	while (!isnumber(*p) && *p != '\0') {
-		++key;
-		++p;
-	}
-	keynumber = key;
-	key = keyname;
-	*p = '\0';
-	numlen = strlen(keynumber);
-	/*
-	 * Try the default help file if we have a numeric key.
-	 * If we have no numeric part of the key, use the command help.
-	 * Or else, use the non-numeric part of the key.
-	 */
-	if (strlen(keybase) == 0) {
-		strlcpy(path, _PATH_DEFAULT, sizeof(path));
-	} else if (numlen == 0) {
-		keynumber = keybase;
-		numlen = strlen(keynumber);
-		strlcpy(path, _PATH_COMMANDS, sizeof(path));
-	} else {
-		snprintf(path, sizeof(path), _PATH_LIBHELP "/%s", keybase);
-	}
-
-	helpfile = fopen(path, "r");
-	if (helpfile == NULL) {
-		goto fail;
-	}
-	while (!feof(helpfile) && (p = fgetln(helpfile, &len)) != NULL) {
-		switch (*p) {
-		case '*':
-			continue;
-		case '-':
-			if (len < numlen) {
-				continue;
-			}
-			if (strncmp(++p, keynumber, numlen) == 0) {
-				found = 1;
-				helping = 1;
-				printf("\n%s:\n", key);
-			} else {
-				helping = 0;
-			}
-			continue;
-		default:
-			if (helping) {
-				p[len - 1] = '\0';
-				printf("%s\n", p);
-			}
-			continue;
-		}
-	}
-	fclose(helpfile);
-	if (keybase != NULL) {
-		free(keybase);
-	}
-	if (found) {
-		return 0;
-	}
-fail:
-	if (keybase != NULL) {
-		free(keybase);
-	}
-	printf("Key '%s' not found.\n", key);
-	return 1;
-}