1: /*************************************************************************
2: * (C) 2008 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
6: * $Id: tools.c,v 1.2.2.2 2010/07/13 13:52:10 misho Exp $
7: *
8: *************************************************************************/
9: #include "global.h"
10: #include "aitio.h"
11:
12:
13: /*
14: * io_LTrimStr() Remove left whitespaces from text string
15: * @psLine = Text string
16: * return: 0 nothing to do; !=0 Removed bytes
17: */
18: inline int io_LTrimStr(u_char * __restrict psLine)
19: {
20: int pos = 0;
21: u_char *s;
22:
23: if (!psLine || !*psLine)
24: return 0;
25:
26: for (s = psLine; isspace(*s); s++);
27: pos = s - psLine;
28:
29: memmove(psLine, s, (strlen((char*) psLine) - pos) + 1);
30: return pos;
31: }
32:
33: /*
34: * io_RTrimStr() Remove right whitespaces from text string
35: * @psLine = Text string
36: * return: 0 nothing to do; !=0 Removed bytes
37: */
38: inline int io_RTrimStr(u_char * __restrict psLine)
39: {
40: u_char *t, *pos;
41:
42: if (!psLine || !*psLine)
43: return 0;
44:
45: pos = psLine + strlen((char*) psLine);
46: for (t = pos - 1; t > psLine && isspace(*t); t--);
47: *++t = 0;
48:
49: return pos - t;
50: }
51:
52: /*
53: * io_TrimStr() Remove left and right whitespaces from text string
54: * @psLine = Text string
55: * return: 0 nothing to do; !=0 Removed bytes
56: */
57: inline int io_TrimStr(u_char * __restrict psLine)
58: {
59: int ret = 0;
60:
61: ret = io_LTrimStr(psLine);
62: ret += io_RTrimStr(psLine);
63:
64: return ret;
65: }
66:
67: /*
68: * io_UnquotStr() Remove quots from input text string
69: * @psLine = Text string
70: * return: 0 nothing to do; 1 successful unquoted string
71: */
72: inline int io_UnquotStr(u_char * __restrict psLine)
73: {
74: char *pos, *str = NULL;
75: int flg;
76:
77: if (!psLine)
78: return 0;
79:
80: switch (*psLine) {
81: case '`':
82: case '"':
83: case '\'':
84: str = strdup((char*) psLine + 1);
85: for (pos = str, flg = 0; *pos; flg = ('\\' == *pos), pos++) {
86: if (!flg && *pos == *psLine) {
87: *pos = 0;
88: strlcpy((char*) psLine, str, strlen((char*) psLine) + 1);
89: break;
90: }
91: }
92: free(str);
93: return 1;
94: }
95:
96: return 0;
97: }
98:
99: /*
100: * io_Ch2Hex() Convert from Char string to Hex string
101: * @psLine = Text string
102: * @lineLen = Length of Text string
103: * return: NULL nothing to do or error; !=0 Allocated new converted data without term\0 (must be free)
104: */
105: inline u_char *io_Ch2Hex(u_char *psLine, int lineLen)
106: {
107: register int i;
108: char szWork[3];
109: u_char *str;
110:
111: if (!psLine || !*psLine || !lineLen)
112: return NULL;
113:
114: str = malloc(lineLen / 2);
115: if (!str) {
116: LOGERR;
117: return NULL;
118: } else
119: memset(str, 0, lineLen / 2);
120:
121: for (i = 0; i < lineLen && psLine[i * 2]; i++) {
122: strlcpy(szWork, (char*) &psLine[i * 2], 3);
123: str[i] = (u_char) strtol(szWork, NULL, 16);
124: }
125:
126: return str;
127: }
128:
129:
130: /*
131: * io_Hex2Ch() Convert from Hex string to Char string
132: * @psLine = Text string
133: * @lineLen = Length of Text string
134: * return: NULL nothing to do or error; !=0 Allocated new converted string(must be free)
135: */
136: inline char *io_Hex2Ch(u_char *psLine, int lineLen)
137: {
138: register int i;
139: char szWork[3], *str;
140:
141: if (!psLine || !*psLine || !lineLen)
142: return NULL;
143:
144: str = malloc(lineLen * 2 + 1);
145: if (!str) {
146: LOGERR;
147: return NULL;
148: } else
149: memset(str, 0, lineLen * 2 + 1);
150:
151: for (i = 0; i <= lineLen; i++) {
152: memset(szWork, 0, 3);
153: snprintf(szWork, 3, "%02X", (u_char) psLine[i]);
154: strncat(str, szWork, 2);
155: }
156:
157: return str;
158: }
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