83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
#include <u.h>
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#include <libc.h>
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#include <stdio.h>
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#include "base64.h"
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int lower(int a);
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void
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main(int argc,char** argv)
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{
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char 2 = ' ';
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if (argc > 1)
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opt = lower(argv[1][0]);
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if ( ((argc < 4) && (opt!='b' && opt!='t')) ) {
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puts("\nbase64.c [Encode/Decode]");
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puts("------------------------------------");
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printf("File mode\n");
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printf("\tUse the following to encode:\n\t%s e(ncode) IN_filepath OUT_filepath\n",argv[0]);
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printf("\tUse the following to decode:\n\t%s d(ecode) IN_filepath OUT_filepath\n",argv[0]);
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printf("\nText mode (outputs to stdout):\n");
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printf("\tUse the following to encode:\n\t%s t(ext) IN_Text\n",argv[0]);
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printf("\tUse the following to decode:\n\t%s b(ase64) IN_Base64\n",argv[0]);
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puts("\nERROR: insufficient or incorrect parameters...");
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exits("1");
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}
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int bcoded = 0;
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switch(opt) {
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case 'd':
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puts("\nDECODING");
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bcoded = b64_decode(argv[2],argv[3]);
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break;
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case 'e':
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puts("\nENCODING");
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bcoded = b64_encodef(argv[2],argv[3]);
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break;
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case 't':
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puts("\nENCODING from text to base64");
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int tlen = strlen(argv[2]);
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char *b64 = (char *)malloc(1 + ((unsigned)(sizeof(char) * b64e_size(tlen)));
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if (b64 == NULL) {
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printf("Error: cannot allocate memory for output\n");
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exits("1"); /* End program with error status. */
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}
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bcoded = b64_encode(argv[2],tlen,b64);
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printf("Encoded base64 from text: %s", b64);
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free(b64);
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break;
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case 'b':
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puts("\nDECODING from base64 to text");
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int blen = strlen(argv[2]);
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char *txt = malloc(1 + (sizeof(char) * b64d_size(blen)));
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if (txt == NULL) {
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printf("Error: cannot allocate memory for output\n");
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exits("1"); /* End program with error status. */
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}
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//bcoded = b64_decode(argv[2],blen,txt);
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txt[bcoded] = '\0';
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printf("Decoded text from base64: %s", txt);
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free(txt);
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break;
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default:
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puts("\nINVALID OPTION");
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bcoded = -1;
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}
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printf("\nBytes encoded/decoded: %i\n",bcoded);
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}
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int lower(int a) { //https://stackoverflow.com/a/15709023/883015
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if ((a >= 0x41) && (a <= 0x5A))
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a |= 0x20;
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return a;
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}
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