security/nss/lib/freebl/mpi/utils/basecvt.c

changeset 0
6474c204b198
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-1:000000000000 0:2d33ce633cfc
1 /*
2 * basecvt.c
3 *
4 * Convert integer values specified on the command line from one input
5 * base to another. Accepts input and output bases between 2 and 36
6 * inclusive.
7 *
8 * This Source Code Form is subject to the terms of the Mozilla Public
9 * License, v. 2.0. If a copy of the MPL was not distributed with this
10 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
11
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include <string.h>
15
16 #include "mpi.h"
17
18 #define IBASE 10
19 #define OBASE 16
20 #define USAGE "Usage: %s ibase obase [value]\n"
21 #define MAXBASE 64
22 #define MINBASE 2
23
24 int main(int argc, char *argv[])
25 {
26 int ix, ibase = IBASE, obase = OBASE;
27 mp_int val;
28
29 ix = 1;
30 if(ix < argc) {
31 ibase = atoi(argv[ix++]);
32
33 if(ibase < MINBASE || ibase > MAXBASE) {
34 fprintf(stderr, "%s: input radix must be between %d and %d inclusive\n",
35 argv[0], MINBASE, MAXBASE);
36 return 1;
37 }
38 }
39 if(ix < argc) {
40 obase = atoi(argv[ix++]);
41
42 if(obase < MINBASE || obase > MAXBASE) {
43 fprintf(stderr, "%s: output radix must be between %d and %d inclusive\n",
44 argv[0], MINBASE, MAXBASE);
45 return 1;
46 }
47 }
48
49 mp_init(&val);
50 while(ix < argc) {
51 char *out;
52 int outlen;
53
54 mp_read_radix(&val, argv[ix++], ibase);
55
56 outlen = mp_radix_size(&val, obase);
57 out = calloc(outlen, sizeof(char));
58 mp_toradix(&val, out, obase);
59
60 printf("%s\n", out);
61 free(out);
62 }
63
64 mp_clear(&val);
65
66 return 0;
67 }

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