X-Git-Url: http://git.madism.org/?p=apps%2Fmadmutt.git;a=blobdiff_plain;f=base64.c;h=0b7200923def5faad89650af0220751100c157f0;hp=4e632922d20dcdcd3fcb752180dd078ec3d2f411;hb=5ed593da25809636fe4266e212d8d382a738649b;hpb=f404a0ca916be07049af51a3022baaaaab94def6 diff --git a/base64.c b/base64.c index 4e63292..0b72009 100644 --- a/base64.c +++ b/base64.c @@ -13,8 +13,8 @@ * * You should have received a copy of the GNU General Public * License along with this program; if not, write to the Free - * Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111, USA. + * Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. * */ @@ -43,37 +43,34 @@ # include "config.h" #endif -#include "mutt.h" -#include "mime.h" +#include -#define BAD -1 +#include "mutt.h" /* raw bytes to null-terminated base 64 string */ void mutt_to_base64 (unsigned char *out, const unsigned char *in, size_t len, - size_t olen) + size_t olen) { - while (len >= 3 && olen > 10) - { - *out++ = B64Chars[in[0] >> 2]; - *out++ = B64Chars[((in[0] << 4) & 0x30) | (in[1] >> 4)]; - *out++ = B64Chars[((in[1] << 2) & 0x3c) | (in[2] >> 6)]; - *out++ = B64Chars[in[2] & 0x3f]; - olen -= 4; - len -= 3; - in += 3; + while (len >= 3 && olen > 10) { + *out++ = __m_b64chars[in[0] >> 2]; + *out++ = __m_b64chars[((in[0] << 4) & 0x30) | (in[1] >> 4)]; + *out++ = __m_b64chars[((in[1] << 2) & 0x3c) | (in[2] >> 6)]; + *out++ = __m_b64chars[in[2] & 0x3f]; + olen -= 4; + len -= 3; + in += 3; } /* clean up remainder */ - if (len > 0 && olen > 4) - { + if (len > 0 && olen > 4) { unsigned char fragment; - *out++ = B64Chars[in[0] >> 2]; + *out++ = __m_b64chars[in[0] >> 2]; fragment = (in[0] << 4) & 0x30; if (len > 1) fragment |= in[1] >> 4; - *out++ = B64Chars[fragment]; - *out++ = (len < 2) ? '=' : B64Chars[(in[1] << 2) & 0x3c]; + *out++ = __m_b64chars[fragment]; + *out++ = (len < 2) ? '=' : __m_b64chars[(in[1] << 2) & 0x3c]; *out++ = '='; } *out = '\0'; @@ -86,37 +83,33 @@ int mutt_from_base64 (char *out, const char *in) int len = 0; register unsigned char digit1, digit2, digit3, digit4; - do - { + do { digit1 = in[0]; - if (digit1 > 127 || base64val (digit1) == BAD) + if (base64val(digit1) < 0) return -1; digit2 = in[1]; - if (digit2 > 127 || base64val (digit2) == BAD) + if (base64val(digit2) < 0) return -1; digit3 = in[2]; - if (digit3 > 127 || ((digit3 != '=') && (base64val (digit3) == BAD))) + if (digit3 != '=' && base64val(digit3) < 0) return -1; digit4 = in[3]; - if (digit4 > 127 || ((digit4 != '=') && (base64val (digit4) == BAD))) + if (digit4 != '=' && base64val(digit4) < 0) return -1; in += 4; /* digits are already sanity-checked */ *out++ = (base64val(digit1) << 2) | (base64val(digit2) >> 4); len++; - if (digit3 != '=') - { + if (digit3 != '=') { *out++ = ((base64val(digit2) << 4) & 0xf0) | (base64val(digit3) >> 2); len++; - if (digit4 != '=') - { - *out++ = ((base64val(digit3) << 6) & 0xc0) | base64val(digit4); - len++; + if (digit4 != '=') { + *out++ = ((base64val(digit3) << 6) & 0xc0) | base64val(digit4); + len++; } } - } - while (*in && digit4 != '='); + } while (*in && digit4 != '='); return len; }