htpasswd.c revision 58fd79b56eb624bf011772994e9761d3c2e228c1
/* ====================================================================
* The Apache Software License, Version 1.1
*
* Copyright (c) 2000-2002 The Apache Software Foundation. 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
* distribution.
*
* 3. The end-user documentation included with the redistribution,
* if any, must include the following acknowledgment:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowledgment may appear in the software itself,
* if and wherever such third-party acknowledgments normally appear.
*
* 4. The names "Apache" and "Apache Software Foundation" must
* not be used to endorse or promote products derived from this
* software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache",
* nor may "Apache" appear in their name, without prior written
* permission of the Apache Software Foundation.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED 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 APACHE SOFTWARE FOUNDATION OR
* ITS 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.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
*
* Portions of this software are based upon public domain software
* originally written at the National Center for Supercomputing Applications,
* University of Illinois, Urbana-Champaign.
*/
/******************************************************************************
******************************************************************************
* NOTE! This program is not safe as a setuid executable! Do not make it
* setuid!
******************************************************************************
*****************************************************************************/
/*
* htpasswd.c: simple program for manipulating password file for
* the Apache HTTP server
*
* Originally by Rob McCool
*
* Exit values:
* 0: Success
* 1: Failure; file access/permission problem
* 2: Failure; command line syntax problem (usage message issued)
* 3: Failure; password verification failure
* 4: Failure; operation interrupted (such as with CTRL/C)
* 5: Failure; buffer would overflow (username, filename, or computed
* record too long)
* 6: Failure; username contains illegal or reserved characters
*/
#include "apr.h"
#include "apr_lib.h"
#include "apr_strings.h"
#include "apr_errno.h"
#include "apr_file_io.h"
#include "apr_general.h"
#include "apr_signal.h"
#if APR_HAVE_STDIO_H
#include <stdio.h>
#endif
#include "apr_md5.h"
#include "apr_sha1.h"
#include <time.h>
#if APR_HAVE_CRYPT_H
#include <crypt.h>
#endif
#include <stdlib.h>
#endif
#include <string.h>
#endif
#include <unistd.h>
#endif
#ifdef WIN32
#include <conio.h>
#endif
#if !APR_CHARSET_EBCDIC
#define LF 10
#define CR 13
#else /*APR_CHARSET_EBCDIC*/
#define LF '\n'
#define CR '\r'
#endif /*APR_CHARSET_EBCDIC*/
#define MAX_STRING_LEN 256
#define ALG_PLAIN 0
#define ALG_CRYPT 1
#define ALG_APMD5 2
#define ALG_APSHA 3
#define ERR_FILEPERM 1
#define ERR_SYNTAX 2
#define ERR_PWMISMATCH 3
#define ERR_INTERRUPTED 4
#define ERR_OVERFLOW 5
#define ERR_BADUSER 6
#define APHTP_NEWFILE 1
#define APHTP_NOFILE 2
#define APHTP_NONINTERACTIVE 4
static void to64(char *s, unsigned long v, int n)
{
static unsigned char itoa64[] = /* 0 ... 63 => ASCII - 64 */
"./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
while (--n >= 0) {
*s++ = itoa64[v&0x3f];
v >>= 6;
}
}
static void putline(apr_file_t *f, const char *l)
{
apr_file_puts(l, f);
}
/*
* Make a password record from the given information. A zero return
* indicates success; failure means that the output buffer contains an
* error message instead.
*/
int alg)
{
char *pw;
char cpw[120];
char pwin[MAX_STRING_LEN];
char pwv[MAX_STRING_LEN];
char salt[9];
}
else {
return ERR_OVERFLOW;
}
return ERR_PWMISMATCH;
}
}
switch (alg) {
case ALG_APSHA:
/* XXX cpw >= 28 + strlen(sha1) chars - fixed len SHA */
break;
case ALG_APMD5:
break;
case ALG_PLAIN:
/* XXX this len limitation is not in sync with any HTTPd len. */
break;
case ALG_CRYPT:
default:
break;
#endif
}
/*
* Check to see if the buffer is large enough to hold the username,
* hash, and delimiters.
*/
return ERR_OVERFLOW;
}
return 0;
}
static void usage(void)
{
" (default)"
#endif
".\n");
" (default)"
#endif
".\n");
"than prompting for it.\n");
"On Windows, NetWare and TPF systems the '-m' flag is used by default.\n");
"On all other systems, the '-p' flag will probably not work.\n");
}
/*
* Check to see if the specified file can be opened for the given
* access.
*/
{
apr_file_t *f = NULL;
return 0;
}
apr_file_close(f);
return 1;
}
/*
* Return true if a file is readable.
*/
{
}
/*
* Return true if the specified file can be opened for write access.
*/
{
}
/*
* Return true if the named file exists, regardless of permissions.
*/
{
}
#ifdef NETWARE
void nwTerminate()
{
pressanykey();
}
#endif
char **password)
{
const char *arg;
int args_left = 2;
int i;
/*
* Preliminary check to make sure they provided at least
* three arguments, we'll do better argument checking as
* we parse the command line.
*/
if (argc < 3) {
usage();
}
/*
* Go through the argument list and pick out any options. They
* have to precede any other arguments.
*/
for (i = 1; i < argc; i++) {
if (*arg != '-') {
break;
}
while (*++arg != '\0') {
if (*arg == 'c') {
*mask |= APHTP_NEWFILE;
}
else if (*arg == 'n') {
*mask |= APHTP_NOFILE;
args_left--;
}
else if (*arg == 'm') {
}
else if (*arg == 's') {
}
else if (*arg == 'p') {
}
else if (*arg == 'd') {
}
else if (*arg == 'b') {
*mask |= APHTP_NONINTERACTIVE;
args_left++;
}
else {
usage();
}
}
}
}
/*
* Make sure we still have exactly the right number of arguments left
* (the filename, the username, and possibly the password if -b was
* specified).
*/
usage();
}
if (*mask & APHTP_NOFILE) {
i--;
}
else {
}
}
}
}
if (*mask & APHTP_NONINTERACTIVE) {
argv[0], MAX_STRING_LEN);
}
}
}
/*
* Let's do it. We end up doing a lot of file opening and closing,
* but what do we care? This application isn't run constantly.
*/
{
char record[MAX_STRING_LEN];
char line[MAX_STRING_LEN];
char *pwfilename = NULL;
char tn[] = "htpasswd.tmp.XXXXXX";
char scratch[MAX_STRING_LEN];
int found = 0;
int i;
int mask = 0;
#endif
#ifdef NETWARE
#endif
if (rv) {
exit(1);
}
if (rv) {
exit(1);
}
if (rv) {
exit(1);
}
#endif /*APR_CHARSET_EBCDIC*/
}
#endif
"just not work on this platform.\n");
}
#endif
if (! mask & APHTP_NOFILE) {
/*
* Only do the file checks if we're supposed to frob it.
*
* Verify that the file exists if -c was omitted. We give a special
* message if it doesn't.
*/
"%s: cannot modify file %s; use '-c' to create it\n",
argv[0], pwfilename);
perror("apr_file_open");
}
/*
* Verify that we can read the existing file in the case of an update
* to it (rather than creation of a new one).
*/
argv[0], pwfilename);
perror("apr_file_open");
}
/*
* Now check to see if we can preserve an existing file in case
* of password verification errors on a -c operation.
*/
"%s: existing auth data would be lost on "
"password mismatch",
perror("apr_file_open");
}
/*
* Now verify that the file is writable!
*/
argv[0], pwfilename);
perror("apr_file_open");
}
}
/*
* All the file access checks (if any) have been made. Time to go to work;
* try to create the record for the username in question. If that
* fails, there's no need to waste any time on file manipulations.
* Any error message text is returned in the record buffer, since
* the mkrecord() routine doesn't have access to argv[].
*/
if (i != 0) {
exit(i);
}
if (mask & APHTP_NOFILE) {
exit(0);
}
/*
* We can access the files the right way, and we have a record
* to add or update. Let's do it..
*/
}
/*
* If we're not creating a new file, copy records from the existing
* one to the temporary file until we find the specified user.
*/
pool) == APR_SUCCESS) {
char *colon;
continue;
}
/*
* See if this is our user.
*/
*colon = '\0';
}
continue;
}
else {
/* We found the user we were looking for, add him to the file.
*/
found++;
}
}
}
if (!found) {
}
/* The temporary file has all the data, just copy it to the new location.
*/
return 0;
}