Problem with xcode

Discussion in 'Mac Programming' started by heron88, Dec 30, 2008.

  1. heron88 macrumors 6502

    Joined:
    Jun 16, 2008
    #1
    Heres my problem,

    I get this error message:
    [​IMG]

    When trying to build the following .c file
    Code:
    /*
     * Canon HV30 Firmware Decrypter 1.0 (PAL 1.0.1.0 FW)
     * Copyright 2008 mg1984@gmx.at
     * 
     * This is a modified version of my HF10 V1.1 decrypter,
     * with adjusted values: ENCRYPTION_START, FIRST_P_OFFSET, decstart
     */
    #include <stdio.h>
    #include <stddef.h>
    #include <getopt.h>
    
    char crypt1[] = {
    0x41, 0xCA, 0x42, 0xF9, 0x3C, 0x6D, 0x9D, 0xDF, 0xD8, 0x19, 0x84, 0x08, 0x50, 0xFB, 0x67, 0xA1,
    0xAD, 0x35, 0xF2, 0xCE, 0xDF, 0x9A, 0xF3, 0xC4, 0xF5, 0x22, 0x1A, 0x8A, 0xD5, 0x64, 0x08, 0x65,
    0xD3, 0x2C, 0x96, 0xB6, 0x08, 0x11, 0x3A, 0xB3, 0x90, 0x08, 0xE6, 0x2E, 0x88, 0xED, 0x24, 0xFB,
    0x24, 0x28, 0x82, 0x3D, 0x39, 0xA8, 0xF3, 0x52, 0x98, 0xF9, 0xA7, 0x75, 0x52, 0x63, 0x0A, 0xF9,
    0xED, 0x7A, 0x82, 0x02, 0x1F, 0x94, 0x76, 0xE1, 0xBA, 0xB6, 0xB9, 0x7B, 0x6C, 0xA2, 0xDA, 0x16,
    0x5B, 0x58, 0x51, 0x20, 0xBC, 0xF1, 0xD8, 0x34, 0x36, 0xAA, 0xD1, 0xA5, 0xEF, 0xF4, 0xE8, 0x50,
    0xDD, 0x09, 0x95, 0x8D, 0xC9, 0x06, 0x8D, 0xF0, 0x2D, 0xA2, 0xF1, 0x0D, 0x5E, 0x14, 0x09, 0x10,
    0x3E, 0x9E, 0x58, 0xCA, 0x39, 0xAB, 0x11, 0x4F, 0x7F, 0x08, 0x8B, 0xCC, 0x4D, 0x9E, 0xD7, 0x20,
    0x1D, 0x8F, 0xCA, 0x46, 0xAE, 0x17, 0xB5, 0x6B, 0xE6, 0x0A, 0xE9, 0x9A, 0x6E, 0x4A, 0x4C, 0xCC,
    0xA6, 0xEB, 0xD8, 0x2B, 0xF1, 0xB0, 0x2F, 0xFB, 0x5F, 0xF7, 0x57, 0x06, 0xB3, 0x77, 0xFC, 0x1B,
    0x98, 0xD9, 0xBA, 0x5A, 0x5F, 0xA4, 0xE0, 0x1F, 0x74, 0x99, 0xF1, 0x69, 0xA3, 0x8A, 0x43, 0x99,
    0xCE, 0x77, 0x04, 0xCC, 0x47, 0x7D, 0xCB, 0x39, 0x6E, 0x2D, 0x5A, 0x59, 0xE4, 0x92, 0x91, 0x37,
    0x1D, 0x60, 0xAA, 0xE5, 0x4F, 0xF8, 0xFA, 0xC1, 0x59, 0x52, 0x2C, 0xAB, 0x09, 0x0F, 0xEE, 0x5E,
    0x5B, 0xC0, 0x64, 0xB3, 0xF5, 0xC2, 0xD3, 0xCC, 0x1E, 0x2C, 0xB4, 0x0B, 0xA8, 0xBF, 0x40, 0x77,
    0x08, 0xA0, 0xC9, 0x93, 0xDF, 0xA8, 0x79, 0x28, 0x41, 0x93, 0x37, 0x2B, 0xF7, 0xD4, 0xAD, 0x1B,
    0x18, 0x9E, 0xE0, 0xB4, 0x59, 0x60, 0x58, 0xEA, 0xAB, 0x2A, 0x6C, 0xD4, 0x07, 0xEE, 0xEF, 0x18,
    0x65, 0xFF, 0x7F, 0x6F, 0x1E, 0xDE, 0xF3, 0x83, 0xF4, 0xB6, 0xF8, 0x7E, 0x0E, 0xBD, 0xB3, 0x6A,
    0x91, 0x5D, 0x24, 0x9F, 0x97, 0x74, 0x60, 0xD6, 0xC9, 0xE2, 0xA6, 0x54, 0x49, 0xE8, 0xB2, 0x6B,
    0x4E, 0xBD, 0x41, 0x2C, 0xC9, 0x40, 0xCF, 0x85, 0x0A, 0xCA, 0x8E, 0x67, 0x99, 0x43, 0x2C, 0x9A,
    0x56, 0x3E, 0x26, 0x23, 0x80, 0xA5, 0x27, 0xD9, 0x05, 0xD4, 0x82, 0x6E, 0x65, 0xE9, 0x81, 0x4E,
    0xB9, 0x58, 0xE3, 0x3F, 0x6A, 0xEA, 0x5C, 0xE7, 0x83, 0x13, 0x2A, 0x63, 0x59, 0x60, 0x24, 0x7A,
    0x0C, 0x6D, 0x79, 0x80, 0x13, 0xED, 0x25, 0xA2, 0x50, 0x15, 0x4B, 0xB3, 0x03, 0x62, 0x33, 0xF5,
    0x60, 0x9D, 0x3F, 0xC5, 0xE2, 0xB7, 0xC8, 0xAF, 0xC8, 0xEB, 0x81, 0x76, 0x8C, 0x9D, 0xE9, 0x62,
    0xDA, 0x13, 0x99, 0x3B, 0xA5, 0xDE, 0x84, 0xD3, 0x20, 0x24, 0x5C, 0xAB, 0xD9, 0xCB, 0x63, 0xFB,
    0x16, 0x39, 0xB7, 0xB3, 0x91, 0xD3, 0xD3, 0xA8, 0x42, 0xA0, 0xE3, 0x27, 0xE8, 0x45, 0x74, 0xD8,
    0x24, 0xEC, 0xE2, 0xFE, 0x3B, 0x73, 0xF5, 0xDC, 0xBE, 0xB2, 0xED, 0xE6, 0xAD, 0x96, 0xBB, 0x23,
    0xD6, 0x7F, 0x32, 0x03, 0x71, 0xD0, 0x33, 0x85, 0xC1, 0x86, 0x80, 0xE4, 0x07, 0x3F, 0xF1, 0x79,
    0x85, 0xC1, 0xB9, 0xCB, 0x36, 0x8C, 0x9A, 0x01, 0xAD, 0x1E, 0xA2, 0xF1, 0x16, 0x45, 0x50, 0x30,
    0xE9, 0x52, 0x4A, 0x80, 0x88, 0xA7, 0x80, 0x27, 0x03, 0x3E, 0xF3, 0x1D, 0xD7, 0x86, 0x4B, 0xF1,
    0x9D, 0x69, 0x45, 0xE0, 0xD4, 0x31, 0x89, 0xDC, 0x47, 0x45, 0x94, 0xC5, 0x4D, 0x20, 0x22, 0xB4,
    0xAB, 0x71, 0x36, 0x6B, 0xBC, 0xAF, 0x74, 0x20, 0x0E, 0x6B, 0xB0, 0xB8, 0xB5, 0xF0, 0x34, 0xCA,
    0x02, 0xAD, 0x7B, 0x35, 0x3D, 0x50, 0x01, 0x9E, 0x30, 0x7B, 0x69, 0x2F, 0x6A, 0x79, 0xF4, 0xEF
    };
    
    char crypt2[] = {
    0xA5, 0xF5, 0x2A, 0xBE, 0x62, 0x66, 0x1C, 0x80, 0x87, 0x3F, 0x91, 0x01, 0x6E, 0xBC, 0x87, 0x02,
    0xD0, 0x2A, 0x3A, 0xC4, 0x65, 0x3C, 0x91, 0x35, 0xB5, 0xAE, 0x21, 0x21, 0xF5, 0x3F, 0xAC, 0x1F,
    0xBE, 0x92, 0xA6, 0xF2, 0xA8, 0x42, 0x39, 0x8F, 0x41, 0x95, 0x91, 0xBD, 0x4C, 0xAD, 0x85, 0xC7,
    0xB7, 0xD6, 0xAE, 0x1C, 0xE2, 0x62, 0xEB, 0xC2, 0x03, 0x5D, 0xD6, 0x4E, 0x7B, 0x59, 0x0F, 0xDD,
    0xB7, 0x3E, 0x22, 0x55, 0x45, 0x91, 0x81, 0x71, 0x71, 0x9F, 0xE8, 0x6D, 0x67, 0x40, 0x8C, 0x43,
    0x30, 0xAA, 0x43, 0x39, 0x3C, 0x35, 0x4E, 0xAF, 0x67, 0x50, 0xDA, 0xE5, 0xA3, 0xA8, 0x08, 0x9C,
    0x59, 0x3E, 0xEB, 0xD0, 0x01, 0xFB, 0xE5, 0x15, 0x59, 0xFF, 0x76, 0xD7, 0x10, 0x39, 0x88, 0x41,
    0x85, 0xE1, 0xF4, 0x43, 0xE3, 0x66, 0xFE, 0x29, 0x7E, 0x50, 0xD4, 0x82, 0x0F, 0x17, 0x38, 0x10,
    0x45, 0x54, 0x3A, 0x53, 0xF8, 0x1C, 0xA1, 0x08, 0x5B, 0x60, 0x25, 0xCA, 0xF7, 0xE7, 0x35, 0x3F,
    0xC3, 0xF9, 0x02, 0x58, 0x14, 0xE6, 0x71, 0x16, 0x03, 0x1C, 0x8E, 0x0F, 0x34, 0xFE, 0xF5, 0x0A,
    0x31, 0x03, 0x49, 0x41, 0x07, 0xB3, 0x63, 0x21, 0xED, 0x5B, 0x40, 0xF2, 0xE2, 0x24, 0x14, 0x63,
    0x8B, 0x45, 0x9D, 0xA0, 0x65, 0x7A, 0xCE, 0xDF, 0x90, 0xD6, 0xC5, 0x7B, 0x26, 0xE3, 0x38, 0xF1,
    0x31, 0x62, 0xB9, 0x60, 0xE7, 0x02, 0x23, 0xEE, 0x10, 0x44, 0x2B, 0x1B, 0x46, 0x07, 0x87, 0x04,
    0xD5, 0xB2, 0x33, 0x8B, 0x97, 0x75, 0xD7, 0x0F, 0x07, 0xB7, 0xBB, 0x83, 0xC8, 0x3E, 0xDA, 0xF4,
    0x5C, 0x70, 0x4D, 0xDF, 0x70, 0x43, 0xF4, 0x15, 0x6D, 0x6C, 0xB2, 0x59, 0x77, 0xEA, 0xB5, 0x86,
    0x4B, 0xF7, 0x95, 0x80, 0x2A, 0x74, 0x37, 0x04, 0x50, 0x94, 0xF4, 0x92, 0x6D, 0x45, 0x73, 0x49,
    0x90, 0xA8, 0x22, 0x03, 0xB8, 0x0A, 0x22, 0x2D, 0xBB, 0xAD, 0xDF, 0x54, 0xB5, 0x3D, 0xB7, 0x8C,
    0xDE, 0xE6, 0x2A, 0x7D, 0x31, 0xEB, 0x7E, 0x82, 0xFF, 0x1D, 0xFF, 0xF7, 0x70, 0xE6, 0x57, 0xAC,
    0x34, 0x40, 0x55, 0xEC, 0x75, 0x77, 0x03, 0xF2, 0x29, 0xD5, 0x4C, 0x75, 0xB8, 0xF7, 0x5B, 0x91,
    0x75, 0x8C, 0x54, 0xF3, 0xCB, 0x36, 0xBB, 0xA4, 0xF6, 0x83, 0xD4, 0x74, 0xE4, 0xA8, 0x57, 0xB0,
    0x2B, 0x95, 0x5E, 0x18, 0xFE, 0x66, 0xC1, 0x11, 0xF6, 0xCE, 0xAE, 0xBB, 0x93, 0xE6, 0x8B, 0xAB,
    0x61, 0xFC, 0x93, 0x56, 0xDA, 0x4F, 0x66, 0x12, 0xF1, 0x6A, 0x07, 0xDD, 0x6F, 0x6D, 0xBE, 0x76,
    0xC9, 0xA3, 0xCB, 0xB9, 0x96, 0xB7, 0x57, 0x70, 0x09, 0x3C, 0xE1, 0x93, 0xE9, 0xD3, 0x54, 0x1C,
    0xAA, 0xC4, 0xD1, 0x75, 0xC2, 0x99, 0x12, 0x12, 0xCA, 0x50, 0xB5, 0x32, 0xC7, 0x85, 0x75, 0x3E,
    0xD3, 0x08, 0x75, 0xEF, 0x25, 0xF8, 0xB5, 0xED, 0xB1, 0xC0, 0xD7, 0x25, 0xFB, 0x8A, 0x23, 0xEB,
    0xA0, 0xC1, 0x03, 0x0D, 0xFC, 0x1B, 0xAB, 0x89, 0xAA, 0x6B, 0x76, 0xC4, 0x31, 0x45, 0xA9, 0x1D,
    0x65, 0x3F, 0xFD, 0x08, 0x69, 0x34, 0x15, 0x13, 0x16, 0x42, 0x03, 0x6E, 0x81, 0x36, 0x97, 0x5F,
    0x93, 0x22, 0xFA, 0x50, 0x1F, 0x13, 0x82, 0x61, 0x78, 0xEA, 0x28, 0xD5, 0x68, 0x96, 0xA9, 0x63,
    0x55, 0x98, 0x2F, 0x24, 0xFB, 0x42, 0x76, 0xF9, 0x1F, 0xBF, 0x79, 0x28, 0x22, 0xC7, 0xC1, 0x17,
    0x36, 0x1D, 0xC0, 0xB5, 0x51, 0x42, 0x6D, 0x52, 0x3D, 0x56, 0x8C, 0x67, 0x25, 0xC8, 0x02, 0x04,
    0x26, 0xE2, 0xBC, 0x47, 0xD1, 0x5A, 0xB7, 0x99, 0xC2, 0x8E, 0x01, 0x2D, 0xC2, 0xFE, 0xF0, 0x02,
    0x4E, 0x94, 0x80, 0x14, 0x20, 0xF0, 0x55, 0xD4, 0x58, 0x93, 0x9E, 0x33, 0x5B, 0xA5, 0xE6, 0xC6,
    0x88};
    
    #define ENCRYPTION_START 0x10010
    #define P_SIZE 64					// packet size
    #define FIRST_P_ROUND 50
    #define FIRST_P_OFFSET 8
    
    int dec(FILE *in, FILE *out, int i, int j, int length) {
      int x, val;
      
      //printf("i = %2i j = %2i length = %2i\n", i, j, length);
      for(x = 0; x < length; x++) {
        if((val = fgetc(in)) == EOF)
    	  return x;
    	
    	fputc(val ^ crypt1[i + x] ^ crypt2[j + x], out);
      }
      
      return x;
    }
    
    int main(int argc, char *argv[])
    {
      FILE *in, *out;
      int rc = FIRST_P_ROUND, bc;
      int decstart = ENCRYPTION_START;
      int omithead = 0, c;
      
      while ((c = getopt (argc, argv, "o")) != -1) {
            switch (c) {
               case 'o':
                 omithead = 1;
                 break;
            }
      }
    
      if (argc < 3 || argc > 4) {
        printf("Usage: dhv30 [-o] inputfile outfile\n");
    	printf("options:\n");
    	printf("    -o    omit unencrypted file head\n");
        return -1;
      }
    
      if ((in = fopen(argv[optind], "rb")) == NULL) {
        printf("Cant't open file name %s\n", argv[optind]);
        return -1;
      }
    
      if ((out = fopen(argv[optind + 1], "wb")) == NULL) {
        printf("Cant't open file name %s\n", argv[optind + 1]);
        fclose(in);
        return -1;
      }
      
      // copy or omit unencrypted head
      if(omithead == 1)
        fseek(in, decstart, SEEK_SET);
      else {
        while(decstart-- > 0)
          fputc(fgetc(in), out);
      }
    
      // decrypt first packet
      printf("i1=%i, i2=%i, length=%i\n", 0 + FIRST_P_OFFSET, P_SIZE - rc + FIRST_P_OFFSET, rc + 1 - FIRST_P_OFFSET);
      dec(in, out, 0 + FIRST_P_OFFSET, P_SIZE - rc + FIRST_P_OFFSET, rc + 1 - FIRST_P_OFFSET);
      rc++;
      
      // decrypt other packets
      do {
        bc = dec(in, out, rc, 0, P_SIZE - rc);
    	bc += dec(in, out, 0, P_SIZE - rc, rc + 1);
    	rc = (rc + 1) % P_SIZE;
    	//printf("rc: %5i bc: %5i\n", rc, bc);
      } while(bc != 0);
      
      fclose(out);
      fclose(in);
      
      return 0;
    }

    It tells me there is a duplicate symbol _main in dhv301.o and main.o but when searching through those files I find nothing. If you need to see those files just let me know because the forum wont let me attach .o files.

    If someone could please lead me past that error message so I can compile and run the program I would be really grateful.

    Thanks
     
  2. Manty macrumors member

    Joined:
    Mar 18, 2008
    Location:
    Lisbon, Portugal
    #2
    That error means that you have two main() functions, removing main.c from your target should solve the problem.
     

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