Annotation of parser3/src/main/pa_uue.C, revision 1.14
1.1 paf 1: /** @file
2: Parser: uuencoding impl.
3:
1.12 misha 4: Copyright(c) 2000-2009 ArtLebedev Group(http://www.artlebedev.com)
1.1 paf 5: Author: Alexandr Petrosian <paf@design.ru> (http://paf.design.ru)
6:
7: @todo setrlimit
8: */
1.2 paf 9:
1.14 ! misha 10: static const char * const IDENT_UUE_C="$Date: 2009-09-27 23:40:07 $";
1.1 paf 11:
12: #include "pa_config_includes.h"
13:
14: #include "pa_uue.h"
1.14 ! misha 15: #include "pa_memory.h"
1.1 paf 16:
17: static unsigned char uue_table[64] = {
18: '`', '!', '"', '#', '$', '%', '&', '\'',
19: '(', ')', '*', '+', ',', '-', '.', '/',
20: '0', '1', '2', '3', '4', '5', '6', '7',
21: '8', '9', ':', ';', '<', '=', '>', '?',
22: '@', 'A', 'B', 'C', 'D', 'E', 'F', 'G',
23: 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
24: 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
25: 'X', 'Y', 'Z', '[', '\\',']', '^', '_'
26: };
27:
1.14 ! misha 28: const char* pa_uuencode(const unsigned char* in, size_t in_size, const char* file_name) {
! 29: size_t new_size=((in_size / 3 + 1) * 4);
1.13 misha 30: new_size += 2 * new_size / 60/*chars in line + new lines*/ + 2;
1.14 ! misha 31: new_size += strlen(file_name) + 11/*header*/ + 6/*footer*/ + 1/*zero terminator*/;
1.12 misha 32:
33: const char* result=new(PointerFreeGC) char[new_size];
34: char* optr=(char*)result;
35:
36: //header
1.14 ! misha 37: optr += sprintf(optr, "begin 644 %s\n", file_name);
1.12 misha 38:
39: //body
1.1 paf 40: int count=45;
1.14 ! misha 41: for(const unsigned char *itemp=in; itemp<(in+in_size); itemp+=count) {
1.1 paf 42: int index;
43:
1.14 ! misha 44: if((itemp+count)>(in+in_size))
! 45: count=in_size-(itemp-in);
1.1 paf 46:
47: /*
48: * for UU and XX, encode the number of bytes as first character
49: */
50: *optr++ = uue_table[count];
51:
52: for (index=0; index<=count-3; index+=3) {
53: *optr++ = uue_table[itemp[index] >> 2];
54: *optr++ = uue_table[((itemp[index ] & 0x03) << 4) | (itemp[index+1] >> 4)];
55: *optr++ = uue_table[((itemp[index+1] & 0x0f) << 2) | (itemp[index+2] >> 6)];
56: *optr++ = uue_table[ itemp[index+2] & 0x3f];
57: }
58:
59: /*
60: * Special handlitempg for itempcomplete litempes
61: */
62: if (index != count) {
63: if (count - index == 2) {
64: *optr++ = uue_table[itemp[index] >> 2];
65: *optr++ = uue_table[((itemp[index ] & 0x03) << 4) |
66: ( itemp[index+1] >> 4)];
67: *optr++ = uue_table[((itemp[index+1] & 0x0f) << 2)];
68: *optr++ = uue_table[0];
69: }
70: else if (count - index == 1) {
71: *optr++ = uue_table[ itemp[index] >> 2];
72: *optr++ = uue_table[(itemp[index] & 0x03) << 4];
73: *optr++ = uue_table[0];
74: *optr++ = uue_table[0];
75: }
76: }
77: /*
78: * end of line
79: */
80: *optr++ = '\n';
81: }
82:
83: //footer
1.12 misha 84: optr += sprintf(optr, "`\nend\n");
85:
86: *optr = 0;
87:
1.14 ! misha 88: //throw Exception(PARSER_RUNTIME, 0, "%d %d %d", in_size, new_size, (size_t)(optr-result));
1.12 misha 89: assert((size_t)(optr-result) < new_size);
90:
91: return result;
1.14 ! misha 92: }
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