builddbm.c

国际标准协议的

/*
 *
 *	RADIUS
 *	Remote Authentication Dial In User Service
 *
 *
 *	Livingston Enterprises, Inc.
 *	6920 Koll Center Parkway
 *	Pleasanton, CA   94566
 *
 *	Copyright 1992 Livingston Enterprises, Inc.
 *
 *	Permission to use, copy, modify, and distribute this software for any
 *	purpose and without fee is hereby granted, provided that this
 *	copyright and permission notice appear on all copies and supporting
 *	documentation, the name of Livingston Enterprises, Inc. not be used
 *	in advertising or publicity pertaining to distribution of the
 *	program without specific prior permission, and notice be given
 *	in supporting documentation that copying and distribution is by
 *	permission of Livingston Enterprises, Inc.   
 *
 *	Livingston Enterprises, Inc. makes no representations about
 *	the suitability of this software for any purpose.  It is
 *	provided "as is" without express or implied warranty.
 *
 */

static char sccsid[] =
"@(#)builddbm.c	1.4 Copyright 2005 Livingston Enterprises Inc";

#include	<sys/types.h>
#include	<sys/socket.h>
#include	<sys/time.h>
#include	<sys/file.h>
#include	<netinet/in.h>

#include	<stdio.h>
#include	<netdb.h>
#include	<strings.h>
#include	<pwd.h>
#include	<time.h>
#include	<ctype.h>
#include	<dbm.h>

#include	"radius.h"

char		*progname;
int		debug_flag;
char		*radius_dir;

#define FIND_MODE_NAME	0
#define FIND_MODE_REPLY	1
#define FIND_MODE_SKIP	2
#define FIND_MODE_FLUSH	3

FILE		*userfd;

main(argc,argv)
int argc;
char **argv;
{
	char	name[128];
	char	content[1024];
	char 	*progname;
	int	fd;
	datum	named;
	datum	contentd;

	progname = *argv;

	if((fd = open("users.pag", O_WRONLY | O_CREAT | O_TRUNC, 0600)) < 0) {
		fprintf(stderr, "%s: Couldn't open users.pag for writing\n",progname);
		exit(-1);
	}
	close(fd);
	if((fd = open("users.dir", O_WRONLY | O_CREAT | O_TRUNC, 0600)) < 0) {
		fprintf(stderr, "%s: Couldn't open users.dir for writing\n",progname);
		exit(-1);
	}
	close(fd);
	radius_dir = ".";
	if(dbminit("users") != 0) {
		fprintf(stderr, "%: Couldn't init dbm\n",progname);
		exit(-1);
	}

	while(user_read(name, content) == 0) {
		named.dptr = name;
		named.dsize = strlen(name);
		contentd.dptr = content;
		contentd.dsize = strlen(content);
		if(store(named, contentd) != 0) {
			fprintf(stderr, "%s: Couldn't store datum for %s\n",
				progname,name);
			exit(-1);
		}
	}
	dbmclose();
	exit(0);
}

/*************************************************************************
 *
 *	Function: user_read
 *
 *	Purpose: Return each user in the database - name is key content
 *		 is 2 strings - check values, and reply values seperated
 *		 by a newline.
 *
 *************************************************************************/

user_read(name, content)
char	*name;
char	*content;
{
	char		buffer[256];
	char		*ptr;
	int		namelen;
	int		mode;
	VALUE_PAIR	*check_first;
	VALUE_PAIR	*reply_first;

	/*
	 * Open the user table
	 */
	if(userfd == (FILE *)NULL) {
		sprintf(buffer, "%s/%s", radius_dir, RADIUS_USERS);
		if((userfd = fopen(buffer, "r")) == (FILE *)NULL) {
			fprintf(stderr, "%s:Couldn't open %s for reading\n",
					progname, buffer);
			exit(-1);
		}
	}

	mode = FIND_MODE_NAME;

	while(fgets(buffer, sizeof(buffer), userfd) != (char *)NULL) {
		if(mode == FIND_MODE_NAME) {
			/*
			 * Find the entry starting with the users name
			 */
			if(*buffer != '#' && *buffer != '\t') {
				ptr = buffer;
				while(*ptr != ' ' && *ptr != '\t' &&
								*ptr != '\0') {
					*name++ = *ptr++;
				}
				*name = '\0';
				if(*ptr == '\0') {
					continue;
				}
				ptr++;
				while(*ptr == ' ' || *ptr == '\t') {
					ptr++;
				}
				strcpy(content, ptr);
				content += strlen(content);
				mode = FIND_MODE_REPLY;
			}
		}
		else {
			if(*buffer == ' ' || *buffer == '\t') {
				ptr = buffer;
				while(*ptr == ' ' || *ptr == '\t') {
					ptr++;
				}
				strcpy(content, ptr);
				content += strlen(content);
				content -= 2;
				while(*content == ' ' || *content == '\t' ) {
					content--;
				}
				content++;
				*content = '\0';
				if(*(content - 1) != ',') {
					return(0);
				}
			}
			else {
				/* We are done */
				return(0);
			}
		}
	}
	fclose(userfd);
	return(-1);
}