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/*
* ProFTPD - FTP server daemon
* Copyright (c) 1997, 1998 Public Flood Software
* Copyright (c) 2001-2010 The ProFTPD Project team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
*
* As a special exemption, Public Flood Software/MacGyver aka Habeeb J. Dihu
* and other respective copyright holders give permission to link this program
* with OpenSSL, and distribute the resulting executable, without including
* the source code for OpenSSL in the source distribution.
*/
/* Utility module linked to utilities to provide functions normally
* present in full src tree.
* $Id: misc.c,v 1.8.4.1 2010/03/25 17:37:49 castaglia Exp $
*/
#include "utils.h"
/* "safe" strncpy, saves room for \0 at end of dest, and refuses to copy
* more than "n" bytes.
*/
char *util_sstrncpy(char *dest, const char *src, size_t n) {
register char *d = dest;
if (!dest)
return NULL;
if (n == 0)
return NULL;
if (src && *src) {
for (; *src && n > 1; n--)
*d++ = *src++;
}
*d = '\0';
return dest;
}
char *util_scan_config(const char *config_path, const char *directive) {
FILE *fp = NULL;
char buf[PR_TUNABLE_BUFFER_SIZE] = {'\0'};
char *cp, *value = NULL;
if (!config_path || !directive) {
errno = EINVAL;
return NULL;
}
fp = fopen(config_path, "r");
if (fp == NULL)
return NULL;
while (!value && fgets(buf, sizeof(buf) - 1, fp)) {
size_t len = strlen(buf);
if (len &&
buf[len-1] == '\n')
buf[len-1] = '\0';
for (cp = buf; *cp && isspace((int) *cp); cp++);
if (*cp == '#' ||
!*cp)
continue;
len = strlen(directive);
if (strncasecmp(cp, directive, len) != 0)
continue;
/* Found it! */
cp += len;
/* strip whitespace */
while (*cp && isspace((int) *cp))
cp++;
value = cp;
/* If the value is quoted, dequote. */
if (*cp == '"') {
char *src = cp;
cp++;
value++;
while (*++src) {
switch (*src) {
case '\\':
if (*++src)
*cp++ = *src;
break;
case '"':
src++;
break;
default:
*cp++ = *src;
}
}
*cp = '\0';
}
}
fclose(fp);
return value ? strdup(value) : NULL;
}
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