about summary refs log tree commit diff
path: root/src/tool/tool.c
blob: dc2384519cd54e6337a0fd2cdc35722a83ecb257 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
/*
 * ngIRCd -- The Next Generation IRC Daemon
 * Copyright (c)2001-2005 Alexander Barton (alex@barton.de)
 *
 * 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.
 * Please read the file COPYING, README and AUTHORS for more information.
 *
 * Tool functions
 */


#include "portab.h"

static char UNUSED id[] = "$Id: tool.c,v 1.7 2007/11/23 16:26:05 fw Exp $";

#include "imp.h"
#include <assert.h>
#include <ctype.h>
#include <stdio.h>
#include <string.h>

#include <netinet/in.h>
#ifdef HAVE_ARPA_INET_H
# include <arpa/inet.h>
#endif

#include "exp.h"
#include "tool.h"


/**
 * Removes all leading and trailing whitespaces of a string.
 * @param String The string to remove whitespaces from.
 */
GLOBAL void
ngt_TrimStr(char *String)
{
	char *start, *end;

	assert(String != NULL);

	start = String;

	/* Remove whitespaces at the beginning of the string ... */
	while (*start == ' ' || *start == '\t' ||
	       *start == '\n' || *start == '\r')
		start++;

	if (!*start) {
		*String = '\0';
		return;
	}

	/* ... and at the end: */
	end = strchr(start, '\0');
	end--;
	while ((*end == ' ' || *end == '\t' || *end == '\n' || *end == '\r')
	       && end >= start)
		end--;

	/* New trailing NULL byte */
	*(++end) = '\0';

	memmove(String, start, (size_t)(end - start)+1);
} /* ngt_TrimStr */


GLOBAL char *
ngt_LowerStr( char *String )
{
	/* String in Kleinbuchstaben konvertieren. Der uebergebene
	 * Speicherbereich wird durch das Ergebnis ersetzt, zusaetzlich
	 * wird dieser auch als Pointer geliefert. */

	char *ptr;

	assert( String != NULL );

	/* Zeichen konvertieren */
	ptr = String;
	while( *ptr )
	{
		*ptr = tolower( *ptr );
		ptr++;
	}
	
	return String;
} /* ngt_LowerStr */


GLOBAL void
ngt_TrimLastChr( char *String, const char Chr)
{
	/* If last character in the string matches Chr, remove it.
	 * Empty strings are handled correctly. */

        unsigned int len;

	assert( String != NULL );

	len = strlen( String );
	if( len == 0 ) return;

	len--;

	if( String[len] == Chr ) String[len] = '\0';
} /* ngt_TrimLastChr */


GLOBAL bool
ngt_IPStrToBin(const char *ip_str, struct in_addr *inaddr)
{
	/* AF is always AF_INET for now */
#ifdef HAVE_INET_ATON
	if (inet_aton(ip_str, inaddr) == 0)
		return false;
#else
	inaddr->s_addr = inet_addr(ip_str);
	if (inaddr->s_addr == (unsigned)-1)
		return false;
#endif
	return true;
}




/* -eof- */