Mercurial > libpst
view src/libstrfunc.c @ 172:6954d315aaa8
move version-info into main configure.in, and set it properly.
prefix all external symbols in the shared library with pst_ to avoid symbol clashes with other shared libraries.
author | Carl Byington <carl@five-ten-sg.com> |
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date | Sat, 04 Apr 2009 16:00:48 -0700 |
parents | cda7c812ec01 |
children | c947b8812120 |
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/* Taken from LibStrfunc v7.3 */ #include "define.h" static char base64_code_chars[]="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=="; static void base64_append(char **ou, int *line_count, char data); static void base64_append(char **ou, int *line_count, char data) { if (*line_count == 76) { *(*ou)++ = '\n'; *line_count = 0; } *(*ou)++ = data; (*line_count)++; } char *pst_base64_encode(void *data, size_t size) { int line_count = 0; return pst_base64_encode_multiple(data, size, &line_count); } char *pst_base64_encode_multiple(void *data, size_t size, int *line_count) { char *output; char *ou; unsigned char *p = (unsigned char *)data; unsigned char *dte = p + size; if (data == NULL || size == 0) return NULL; ou = output = (char *)malloc(size / 3 * 4 + (size / 57) + 6); if (!output) return NULL; while((dte-p) >= 3) { unsigned char x = p[0]; unsigned char y = p[1]; unsigned char z = p[2]; base64_append(&ou, line_count, base64_code_chars[ x >> 2 ]); base64_append(&ou, line_count, base64_code_chars[ ((x & 0x03) << 4) | (y >> 4) ]); base64_append(&ou, line_count, base64_code_chars[ ((y & 0x0F) << 2) | (z >> 6) ]); base64_append(&ou, line_count, base64_code_chars[ z & 0x3F ]); p+=3; }; if ((dte-p) == 2) { base64_append(&ou, line_count, base64_code_chars[ *p >> 2 ]); base64_append(&ou, line_count, base64_code_chars[ ((*p & 0x03) << 4) | (p[1] >> 4) ]); base64_append(&ou, line_count, base64_code_chars[ ((p[1] & 0x0F) << 2) ]); base64_append(&ou, line_count, '='); } else if ((dte-p) == 1) { base64_append(&ou, line_count, base64_code_chars[ *p >> 2 ]); base64_append(&ou, line_count, base64_code_chars[ ((*p & 0x03) << 4) ]); base64_append(&ou, line_count, '='); base64_append(&ou, line_count, '='); }; *ou=0; return output; };