Chameleon

Chameleon Svn Source Tree

Root/tags/2.0/i386/libsaio/convert.c

Source at commit 1808 created 12 years 3 months ago.
By blackosx, Revise layout of package installer 'Welcome' file so it looks cleaner. Change the copyright notice to begin from 2009 as seen in the Chameleon 2.0 r431 installer. Should this date be set earlier?
1/*␊
2 * Convert.c␊
3 * Implement conversion utility functions␊
4 * Create UUID parsing functions and gather other conversion routines␊
5 * --Rek␊
6 */␊
7␊
8#include "convert.h"␊
9␊
10/** Transform a 16 bytes hexadecimal value UUID to a string */␊
11const char * getStringFromUUID(const EFI_CHAR8* eUUID)␊
12{␊
13 static char msg[UUID_LEN*2 + 8] = "";␊
14 if (!eUUID) return "";␊
15 const unsigned char * uuid = (unsigned char*) eUUID;␊
16 sprintf(msg, "%02x%02x%02x%02x-%02x%02x-%02x%02x-%02x%02x-%02x%02x%02x%02x%02x%02x",␊
17␉␉ uuid[0], uuid[1], uuid[2], uuid[3], ␊
18␉␉ uuid[4], uuid[5], uuid[6], uuid[7],␊
19␉␉ uuid[8], uuid[9], uuid[10],uuid[11],␊
20␉␉ uuid[12],uuid[13],uuid[14],uuid[15]);␊
21 return msg ;␊
22}␊
23␊
24/** Parse an UUID string into an (EFI_CHAR8*) buffer */␊
25EFI_CHAR8* getUUIDFromString(const char *source)␊
26{␊
27 if (!source) return 0;␊
28␊
29␉char␉*p = (char *)source;␊
30␉int␉i;␊
31␉char␉buf[3];␊
32␉static EFI_CHAR8 uuid[UUID_LEN+1]="";␊
33␊
34␉buf[2] = '\0';␊
35␉for (i=0; i<UUID_LEN; i++) {␊
36␉␉if (p[0] == '\0' || p[1] == '\0' || !isxdigit(p[0]) || !isxdigit(p[1])) {␊
37␉␉␉verbose("[ERROR] UUID='%s' syntax error\n", source);␊
38␉␉␉return 0;␊
39␉␉}␊
40␉␉buf[0] = *p++;␊
41␉␉buf[1] = *p++;␊
42␉␉uuid[i] = (unsigned char) strtoul(buf, NULL, 16);␊
43␉␉if (*p == '-' && (i % 2) == 1 && i < UUID_LEN - 1) {␊
44␉␉␉p++;␊
45␉␉}␊
46␉}␊
47␉uuid[UUID_LEN]='\0';␊
48␊
49␉if (*p != '\0') {␊
50␉␉verbose("[ERROR] UUID='%s' syntax error\n", source);␊
51␉␉return 0;␊
52␉}␊
53␉return uuid;␊
54}␊
55␊
56/** XXX AsereBLN replace by strtoul */␊
57uint32_t ascii_hex_to_int(char *buff) ␊
58{␊
59␉uint32_t␉value = 0, i, digit;␊
60␉for(i = 0; i < strlen(buff); i++)␊
61␉{␊
62␉␉if (buff[i] >= 48 && buff[i] <= 57)␉␉␉// '0' through '9'␊
63␉␉␉digit = buff[i] - 48;␉␊
64␉␉else if (buff[i] >= 65 && buff[i] <= 70)␉// 'A' through 'F'␊
65␉␉␉digit = buff[i] - 55;␊
66␉␉else if (buff[i] >= 97 && buff[i] <= 102)␉// 'a' through 'f'␊
67␉␉␉digit = buff[i] - 87;␊
68␉␉else␊
69␉␉␉return value;␊
70␉␉␊
71␉␉value = digit + 16 * value;␊
72␉}␊
73␉return␉value;␊
74}␊
75␊
76void *convertHexStr2Binary(const char *hexStr, int *outLength)␊
77{␊
78 int len;␊
79 char hexNibble;␊
80 char hexByte[2];␊
81 uint8_t binChar;␊
82 uint8_t *binStr;␊
83 int hexStrIdx, binStrIdx, hexNibbleIdx;␊
84␊
85 len = strlen(hexStr);␊
86 if (len > 1)␊
87 {␊
88 // the resulting binary will be the half size of the input hex string␊
89 binStr = malloc(len / 2);␊
90 binStrIdx = 0;␊
91 hexNibbleIdx = 0;␊
92 for (hexStrIdx = 0; hexStrIdx < len; hexStrIdx++)␊
93 {␊
94 hexNibble = hexStr[hexStrIdx];␊
95 ␊
96 // ignore all chars except valid hex numbers␊
97 if (hexNibble >= '0' && hexNibble <= '9'␊
98 || hexNibble >= 'A' && hexNibble <= 'F'␊
99 || hexNibble >= 'a' && hexNibble <= 'f')␊
100 {␊
101 hexByte[hexNibbleIdx++] = hexNibble;␊
102 ␊
103 // found both two nibbles, convert to binary␊
104 if (hexNibbleIdx == 2)␊
105 {␊
106 binChar = 0;␊
107 ␊
108 for (hexNibbleIdx = 0; hexNibbleIdx < sizeof(hexByte); hexNibbleIdx++)␊
109 {␊
110 if (hexNibbleIdx > 0) binChar = binChar << 4;␊
111 ␊
112 if (hexByte[hexNibbleIdx] <= '9') binChar += hexByte[hexNibbleIdx] - '0';␊
113 else if (hexByte[hexNibbleIdx] <= 'F') binChar += hexByte[hexNibbleIdx] - ('A' - 10);␊
114 else if (hexByte[hexNibbleIdx] <= 'f') binChar += hexByte[hexNibbleIdx] - ('a' - 10);␊
115 }␊
116 ␊
117 binStr[binStrIdx++] = binChar;␉␉␉␉␉␉␊
118 hexNibbleIdx = 0;␊
119 }␊
120 }␊
121 }␊
122 *outLength = binStrIdx;␊
123 return binStr;␊
124 }␊
125 else␊
126 {␊
127 *outLength = 0;␊
128 return NULL;␊
129 }␊
130}␊
131␊
132// FIXME: can't use my original code here,␊
133// Ironically, trying to reuse convertHexStr2Binary() would RESET the system!␊
134/*␊
135static EFI_CHAR8* getUUIDFromString2(const char * szInUUID)␊
136{␊
137 char szUUID[UUID_LEN+1], *p=szUUID;␊
138 int size=0;␊
139 void* ret;␊
140␊
141 if (!szInUUID || strlen(szInUUID)<UUID_LEN) return (EFI_CHAR8*) 0;␊
142␊
143 while(*szInUUID) if (*szInUUID!='-') *p++=*szInUUID++; else szInUUID++;␊
144 *p='\0';␊
145 ret = convertHexStr2Binary(szUUID, &size);␊
146 if (!ret || size!=UUID_LEN) ␊
147 {␊
148 verbose("UUID: cannot convert string <%s> to valid UUID.\n", szUUID);␊
149 return (EFI_CHAR8*) 0;␊
150 }␊
151 return (EFI_CHAR8*) ret; // new allocated buffer containing the converted string to bin␊
152}␊
153*/␊
154

Archive Download this file

Revision: 1808