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Annotation of src/usr.bin/ssh/uuencode.c, Revision 1.19

1.1       markus      1: /*
1.4       markus      2:  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
1.7       deraadt     3:  *
                      4:  * Redistribution and use in source and binary forms, with or without
                      5:  * modification, are permitted provided that the following conditions
                      6:  * are met:
                      7:  * 1. Redistributions of source code must retain the above copyright
                      8:  *    notice, this list of conditions and the following disclaimer.
                      9:  * 2. Redistributions in binary form must reproduce the above copyright
                     10:  *    notice, this list of conditions and the following disclaimer in the
                     11:  *    documentation and/or other materials provided with the distribution.
                     12:  *
                     13:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
                     14:  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
                     15:  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
                     16:  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
                     17:  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
                     18:  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
                     19:  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
                     20:  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
                     21:  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
                     22:  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.1       markus     23:  */
1.7       deraadt    24:
1.1       markus     25: #include "includes.h"
1.15      stevesk    26:
1.1       markus     27: #include "xmalloc.h"
1.10      itojun     28: #include "uuencode.h"
1.1       markus     29:
1.12      deraadt    30: #include <resolv.h>
1.6       djm        31:
1.1       markus     32: int
1.17      jakob      33: uuencode(const u_char *src, u_int srclength,
1.4       markus     34:     char *target, size_t targsize)
1.1       markus     35: {
1.5       markus     36:        return __b64_ntop(src, srclength, target, targsize);
1.1       markus     37: }
                     38:
                     39: int
1.8       markus     40: uudecode(const char *src, u_char *target, size_t targsize)
1.1       markus     41: {
1.5       markus     42:        int len;
                     43:        char *encoded, *p;
                     44:
                     45:        /* copy the 'readonly' source */
                     46:        encoded = xstrdup(src);
                     47:        /* skip whitespace and data */
                     48:        for (p = encoded; *p == ' ' || *p == '\t'; p++)
                     49:                ;
                     50:        for (; *p != '\0' && *p != ' ' && *p != '\t'; p++)
                     51:                ;
1.13      markus     52:        /* and remove trailing whitespace because __b64_pton needs this */
1.5       markus     53:        *p = '\0';
                     54:        len = __b64_pton(encoded, target, targsize);
                     55:        xfree(encoded);
                     56:        return len;
1.1       markus     57: }
                     58:
                     59: void
1.14      markus     60: dump_base64(FILE *fp, u_char *data, u_int len)
1.1       markus     61: {
1.19    ! djm        62:        char *buf;;
1.1       markus     63:        int i, n;
1.9       deraadt    64:
1.19    ! djm        65:        if (len > 65536) {
        !            66:                fprintf(fp, "dump_base64: len > 65536\n");
        !            67:                return;
        !            68:        }
        !            69:        buf = xmalloc(2*len);
1.4       markus     70:        n = uuencode(data, len, buf, 2*len);
1.1       markus     71:        for (i = 0; i < n; i++) {
                     72:                fprintf(fp, "%c", buf[i]);
                     73:                if (i % 70 == 69)
                     74:                        fprintf(fp, "\n");
                     75:        }
                     76:        if (i % 70 != 69)
                     77:                fprintf(fp, "\n");
                     78:        xfree(buf);
                     79: }