src/usr.bin/ssh/radix.c - diff

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Diff for /src/usr.bin/ssh/Attic/radix.c between version 1.8 and 1.9

-version 1.8, 2000/04/14 10:30:32
+version 1.9, 2000/04/26 20:56:29
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  /*
   *   radix.c
   *
-  *   base-64 encoding pinched from lynx2-7-2, who pinched it from rpem.
-  *   Originally written by Mark Riordan 12 August 1990 and 17 Feb 1991
-  *   and placed in the public domain.
-  *
   *   Dug Song <dugsong@UMICH.EDU>
   */
  #include "includes.h"
+ #include "uuencode.h"
  #ifdef AFS
  #include <krb.h>
- char six2pr[64] = {
-         'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
-         'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
-         'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
-         'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
-         '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'
- };
- unsigned char pr2six[256];
- int
- uuencode(unsigned char *bufin, unsigned int nbytes, char *bufcoded)
- {
-         /* ENC is the basic 1 character encoding function to make a char printing */
- #define ENC(c) six2pr[c]
-         register char *outptr = bufcoded;
-         unsigned int i;
-         for (i = 0; i < nbytes; i += 3) {
-                 *(outptr++) = ENC(*bufin >> 2);                                         /* c1 */
-                 *(outptr++) = ENC(((*bufin << 4) & 060)   | ((bufin[1] >> 4) & 017));   /* c2 */
-                 *(outptr++) = ENC(((bufin[1] << 2) & 074) | ((bufin[2] >> 6) & 03));    /* c3 */
-                 *(outptr++) = ENC(bufin[2] & 077);                                      /* c4 */
-                 bufin += 3;
-         }
-         if (i == nbytes + 1) {
-                 outptr[-1] = '=';
-         } else if (i == nbytes + 2) {
-                 outptr[-1] = '=';
-                 outptr[-2] = '=';
-         }
-         *outptr = '\0';
-         return (outptr - bufcoded);
- }
- int
- uudecode(const char *bufcoded, unsigned char *bufplain, int outbufsize)
- {
-         /* single character decode */
- #define DEC(c) pr2six[(unsigned char)c]
- #define MAXVAL 63
-         static int first = 1;
-         int nbytesdecoded, j;
-         const char *bufin = bufcoded;
-         register unsigned char *bufout = bufplain;
-         register int nprbytes;
-         /* If this is the first call, initialize the mapping table. */
-         if (first) {
-                 first = 0;
-                 for (j = 0; j < 256; j++)
-                         pr2six[j] = MAXVAL + 1;
-                 for (j = 0; j < 64; j++)
-                         pr2six[(unsigned char) six2pr[j]] = (unsigned char) j;
-         }
-         /* Strip leading whitespace. */
-         while (*bufcoded == ' ' || *bufcoded == '\t')
-                 bufcoded++;
-         /*
-          * Figure out how many characters are in the input buffer. If this
-          * would decode into more bytes than would fit into the output
-          * buffer, adjust the number of input bytes downwards.
-          */
-         bufin = bufcoded;
-         while (DEC(*(bufin++)) <= MAXVAL);
-         nprbytes = bufin - bufcoded - 1;
-         nbytesdecoded = ((nprbytes + 3) / 4) * 3;
-         if (nbytesdecoded > outbufsize)
-                 nprbytes = (outbufsize * 4) / 3;
-         bufin = bufcoded;
-         while (nprbytes > 0) {
-                 *(bufout++) = (unsigned char) (DEC(*bufin)   << 2 | DEC(bufin[1]) >> 4);
-                 *(bufout++) = (unsigned char) (DEC(bufin[1]) << 4 | DEC(bufin[2]) >> 2);
-                 *(bufout++) = (unsigned char) (DEC(bufin[2]) << 6 | DEC(bufin[3]));
-                 bufin += 4;
-                 nprbytes -= 4;
-         }
-         if (nprbytes & 03) {
-                 if (DEC(bufin[-2]) > MAXVAL)
-                         nbytesdecoded -= 2;
-                 else
-                         nbytesdecoded -= 1;
-         }
-         return (nbytesdecoded);
- }
  typedef unsigned char my_u_char;
  typedef unsigned int my_u_int32_t;