1: /*************************************************************************
2: * (C) 2008 AITNET ltd - Sofia/Bulgaria - <misho@aitnet.org>
3: * by Michael Pounov <misho@elwix.org>
4: *
5: * $Author: misho $
6: * $Id: tools.c,v 1.4 2011/04/20 22:56:32 misho Exp $
7: *
8: **************************************************************************
9: The ELWIX and AITNET software is distributed under the following
10: terms:
11:
12: All of the documentation and software included in the ELWIX and AITNET
13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
14:
15: Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
16: by Michael Pounov <misho@elwix.org>. All rights reserved.
17:
18: Redistribution and use in source and binary forms, with or without
19: modification, are permitted provided that the following conditions
20: are met:
21: 1. Redistributions of source code must retain the above copyright
22: notice, this list of conditions and the following disclaimer.
23: 2. Redistributions in binary form must reproduce the above copyright
24: notice, this list of conditions and the following disclaimer in the
25: documentation and/or other materials provided with the distribution.
26: 3. All advertising materials mentioning features or use of this software
27: must display the following acknowledgement:
28: This product includes software developed by Michael Pounov <misho@elwix.org>
29: ELWIX - Embedded LightWeight unIX and its contributors.
30: 4. Neither the name of AITNET nor the names of its contributors
31: may be used to endorse or promote products derived from this software
32: without specific prior written permission.
33:
34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44: SUCH DAMAGE.
45: */
46: #include "global.h"
47: #include "aitio.h"
48:
49:
50: /*
51: * io_LTrimStr() Remove left whitespaces from text string
52: * @psLine = Text string
53: * return: 0 nothing to do; !=0 Removed bytes
54: */
55: inline int io_LTrimStr(u_char * __restrict psLine)
56: {
57: int pos = 0;
58: u_char *s;
59:
60: if (!psLine || !*psLine)
61: return 0;
62:
63: for (s = psLine; isspace(*s); s++);
64: pos = s - psLine;
65:
66: memmove(psLine, s, (strlen((char*) psLine) - pos) + 1);
67: return pos;
68: }
69:
70: /*
71: * io_RTrimStr() Remove right whitespaces from text string
72: * @psLine = Text string
73: * return: 0 nothing to do; !=0 Removed bytes
74: */
75: inline int io_RTrimStr(u_char * __restrict psLine)
76: {
77: u_char *t, *pos;
78:
79: if (!psLine || !*psLine)
80: return 0;
81:
82: pos = psLine + strlen((char*) psLine);
83: for (t = pos - 1; t > psLine && isspace(*t); t--);
84: *++t = 0;
85:
86: return pos - t;
87: }
88:
89: /*
90: * io_TrimStr() Remove left and right whitespaces from text string
91: * @psLine = Text string
92: * return: 0 nothing to do; !=0 Removed bytes
93: */
94: inline int io_TrimStr(u_char * __restrict psLine)
95: {
96: int ret = 0;
97:
98: ret = io_LTrimStr(psLine);
99: ret += io_RTrimStr(psLine);
100:
101: return ret;
102: }
103:
104: /*
105: * io_UnquotStr() Remove quots from input text string
106: * @psLine = Text string
107: * return: 0 nothing to do; 1 successful unquoted string
108: */
109: inline int io_UnquotStr(u_char * __restrict psLine)
110: {
111: char *pos, *str = NULL;
112: int flg;
113:
114: if (!psLine)
115: return 0;
116:
117: switch (*psLine) {
118: case '`':
119: case '"':
120: case '\'':
121: str = strdup((char*) psLine + 1);
122: for (pos = str, flg = 0; *pos; flg = ('\\' == *pos), pos++) {
123: if (!flg && *pos == *psLine) {
124: *pos = 0;
125: strlcpy((char*) psLine, str, strlen((char*) psLine) + 1);
126: break;
127: }
128: }
129: free(str);
130: return 1;
131: }
132:
133: return 0;
134: }
135:
136: /*
137: * io_Ch2Hex() Convert from Char string to Hex string
138: * @psLine = Text string
139: * @lineLen = Length of Text string
140: * return: NULL nothing to do or error; !=0 Allocated new converted data without term\0 (must be free)
141: */
142: inline u_char *io_Ch2Hex(u_char *psLine, int lineLen)
143: {
144: register int i;
145: char szWork[3];
146: u_char *str;
147:
148: if (!psLine || !*psLine || !lineLen)
149: return NULL;
150:
151: str = malloc(lineLen / 2);
152: if (!str) {
153: LOGERR;
154: return NULL;
155: } else
156: memset(str, 0, lineLen / 2);
157:
158: for (i = 0; i < lineLen && psLine[i * 2]; i++) {
159: strlcpy(szWork, (char*) &psLine[i * 2], 3);
160: str[i] = (u_char) strtol(szWork, NULL, 16);
161: }
162:
163: return str;
164: }
165:
166:
167: /*
168: * io_Hex2Ch() Convert from Hex string to Char string
169: * @psLine = Text string
170: * @lineLen = Length of Text string
171: * return: NULL nothing to do or error; !=0 Allocated new converted string(must be free)
172: */
173: inline char *io_Hex2Ch(u_char *psLine, int lineLen)
174: {
175: register int i;
176: char szWork[3], *str;
177:
178: if (!psLine || !*psLine || !lineLen)
179: return NULL;
180:
181: str = malloc(lineLen * 2 + 1);
182: if (!str) {
183: LOGERR;
184: return NULL;
185: } else
186: memset(str, 0, lineLen * 2 + 1);
187:
188: for (i = 0; i <= lineLen; i++) {
189: memset(szWork, 0, 3);
190: snprintf(szWork, 3, "%02X", (u_char) psLine[i]);
191: strncat(str, szWork, 2);
192: }
193:
194: return str;
195: }
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