nuttx-apps/fsutils/passwd/passwd_append.c
Alin Jerpelea f99a4f557d fsutils: update licenses to Apache
Gregory Nutt is has submitted the SGA
Ken Pettit has submitted the ICLA

 as a result we can migrate the licenses to Apache.

Signed-off-by: Alin Jerpelea <alin.jerpelea@sony.com>
2021-06-08 08:43:15 -05:00

102 lines
2.8 KiB
C

/****************************************************************************
* apps/fsutils/passwd/passwd_append.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <stdio.h>
#include <assert.h>
#include <errno.h>
#include "passwd.h"
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: passwd_append
*
* Description:
* Append a new record to the end of the /etc/passwd file
*
* Input Parameters:
*
* Returned Value:
* Zero (OK) is returned on success; a negated errno value is returned on
* failure.
*
****************************************************************************/
int passwd_append(FAR const char *username, FAR const char *password)
{
char encrypted[MAX_ENCRYPTED + 1];
FILE *stream;
int ret;
/* Encrypt the raw password */
ret = passwd_encrypt(password, encrypted);
if (ret < 0)
{
return ret;
}
/* Append the new user record to the end of the password file */
stream = fopen(CONFIG_FSUTILS_PASSWD_PATH, "a");
if (stream == NULL)
{
int errcode = errno;
DEBUGASSERT(errcode > 0);
return errcode;
}
/* The format of the password file is:
*
* user:x:uid:gid:home
*
* Where:
* user: User name
* x: Encrypted password
* uid: User ID (0 for now)
* gid: Group ID (0 for now)
* home: Login directory (/ for now)
*/
ret = fprintf(stream, "%s:%s:0:0:/\n", username, encrypted);
if (ret < 0)
{
int errcode = errno;
DEBUGASSERT(errcode > 0);
ret = -errcode;
goto errout_with_stream;
}
/* Return success */
ret = OK;
errout_with_stream:
fclose(stream);
return ret;
}