56 lines
1.0 KiB
C
56 lines
1.0 KiB
C
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#include <ant/base64.h>
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#include <unistd.h>
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#include <assert.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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char *cmnd;
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static void usage(void) {
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fprintf(stderr, "Usage: %s [-d|-e]\n", cmnd);
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exit(1);
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}
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int main(int argc, char **argv) {
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char buf1[1024+1];
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char buf2[1024+1];
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enum { NONE, ENCODE, DECODE} mode = NONE;
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int c;
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int r1, r2;
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cmnd = argv[0];
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while ((c = getopt(argc, argv, "de")) != EOF) {
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switch(c) {
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case 'd':
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mode = DECODE;
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break;
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case 'e':
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mode = ENCODE;
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break;
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case '?':
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usage();
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default:
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assert(0);
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}
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}
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switch(mode) {
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case NONE:
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usage();
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case ENCODE:
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while ((r1 = fread(buf1, 1, 57, stdin)) > 0) {
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r2 = base64_encode(buf2, sizeof(buf2), buf1, r1, 76);
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fwrite(buf2, 1, r2, stdout);
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putchar('\n');
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}
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break;
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case DECODE:
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while (fgets(buf1, sizeof(buf1), stdin)) {
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r1 = strlen(buf1);
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if (buf1[r1-1] == '\n') r1--;
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r2 = base64_decode(buf2, sizeof(buf2), buf1, r1);
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fwrite(buf2, 1, r2, stdout);
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}
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}
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return 0;
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}
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