lib/eggdrop/md5.h File Reference

Go to the source code of this file.

Data Structures
struct	MD5_CTX
Typedefs
typedef unsigned long	MD5_u32plus
Functions
void	MD5_Init (MD5_CTX *ctx)
void	MD5_Update (MD5_CTX *ctx, const void *data, unsigned long size)
void	MD5_Final (unsigned char *result, MD5_CTX *ctx)
void	MD5_Hex (unsigned char *hash, char *hex)

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Typedef Documentation

typedef unsigned long MD5_u32plus

Definition at line 13 of file md5.h.

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Function Documentation

void MD5_Final	(	unsigned char *	result,
		MD5_CTX *	ctx
	)

Definition at line 222 of file md5.c.

References MD5_CTX::a, MD5_CTX::b, body(), MD5_CTX::buffer, MD5_CTX::c, MD5_CTX::d, MD5_CTX::hi, and MD5_CTX::lo.

Referenced by got_passreq(), recving_login(), script_md5(), sending_login(), user_check_pass(), and user_set_pass().

{
  unsigned long used, free;

  used = ctx->lo & 0x3f;

  ctx->buffer[used++] = 0x80;

  free = 64 - used;

  if (free < 8) {
    memset(&ctx->buffer[used], 0, free);
    body(ctx, ctx->buffer, 64);
    used = 0;
    free = 64;
  }

  memset(&ctx->buffer[used], 0, free - 8);

  ctx->lo <<= 3;
  ctx->buffer[56] = ctx->lo;
  ctx->buffer[57] = ctx->lo >> 8;
  ctx->buffer[58] = ctx->lo >> 16;
  ctx->buffer[59] = ctx->lo >> 24;
  ctx->buffer[60] = ctx->hi;
  ctx->buffer[61] = ctx->hi >> 8;
  ctx->buffer[62] = ctx->hi >> 16;
  ctx->buffer[63] = ctx->hi >> 24;

  body(ctx, ctx->buffer, 64);

  result[0] = ctx->a;
  result[1] = ctx->a >> 8;
  result[2] = ctx->a >> 16;
  result[3] = ctx->a >> 24;
  result[4] = ctx->b;
  result[5] = ctx->b >> 8;
  result[6] = ctx->b >> 16;
  result[7] = ctx->b >> 24;
  result[8] = ctx->c;
  result[9] = ctx->c >> 8;
  result[10] = ctx->c >> 16;
  result[11] = ctx->c >> 24;
  result[12] = ctx->d;
  result[13] = ctx->d >> 8;
  result[14] = ctx->d >> 16;
  result[15] = ctx->d >> 24;

  memset(ctx, 0, sizeof(ctx));
}

void MD5_Hex	(	unsigned char *	hash,
		char *	hex
	)

Definition at line 275 of file md5.c.

Referenced by got_passreq(), recving_login(), script_md5(), sending_login(), user_check_pass(), and user_set_pass().

{
  int i;

  for (i = 0; i < 16; i++) sprintf(hex + (i*2), "%.2x", (int) hash[i]);
}

void MD5_Init

(

MD5_CTX *

ctx

)

Definition at line 178 of file md5.c.

References MD5_CTX::a, MD5_CTX::b, MD5_CTX::c, MD5_CTX::d, MD5_CTX::hi, and MD5_CTX::lo.

Referenced by got_passreq(), recving_login(), script_md5(), sending_login(), user_check_pass(), and user_set_pass().

{
  ctx->a = 0x67452301;
  ctx->b = 0xefcdab89;
  ctx->c = 0x98badcfe;
  ctx->d = 0x10325476;

  ctx->lo = 0;
  ctx->hi = 0;
}

void MD5_Update	(	MD5_CTX *	ctx,
		const void *	data,
		unsigned long	size
	)

Definition at line 189 of file md5.c.

References body(), MD5_CTX::buffer, MD5_CTX::hi, and MD5_CTX::lo.

Referenced by got_passreq(), recving_login(), script_md5(), sending_login(), user_check_pass(), and user_set_pass().

{
  MD5_u32plus saved_lo;
  unsigned long used, free;

  saved_lo = ctx->lo;
  if ((ctx->lo = (saved_lo + size) & 0x1fffffff) < saved_lo) ctx->hi++;
  ctx->hi += size >> 29;

  used = saved_lo & 0x3f;

  if (used) {
    free = 64 - used;

    if (size < free) {
      memcpy(&ctx->buffer[used], data, size);
      return;
    }

    memcpy(&ctx->buffer[used], data, free);
    data += free;
    size -= free;
    body(ctx, ctx->buffer, 64);
  }

  if (size >= 64) {
    data = body(ctx, data, size & ~(unsigned long)0x3f);
    size &= 0x3f;
  }

  memcpy(ctx->buffer, data, size);
}