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  1. #include <stdio.h>
  2. #include <stdint.h>
  3. #include <stdbool.h>
  4.  
  5. #define SIA_KEYMGR_CHAR_BIT 8u
  6. #define SIA_KEYMGR_AES_BLOCK_BYTE_LEN 16u
  7. uint8_t buf_0[] = {11,12,13,14,15,17,18,19,0xfe};
  8. uint8_t buf_test[] = {1,2,3,4,5,7,20,1,0xfe,44,55,66,77,88,99,10,11,24,0xfe,1,2,3,4,5,7,20,1,2,0xfe,0xfe,43};
  9. uint8_t buf_test_2[256] ;
  10.  
  11. uint8_t length_check_for_eeprom_2(uint8_t *buff);
  12. void data_process(uint8_t *old_data, uint8_t old_data_size, uint8_t *old_al,uint8_t *new_data);
  13.  
  14. void Sia_Keymgr_u32_to_n(uint8_t *out, uint32_t in)
  15. {
  16.     unsigned int i;
  17.  
  18.     for (i = sizeof(in); i > 0u; --i)
  19.     {
  20.         out[i - 1u] = (uint8_t) in;
  21.         in >>= SIA_KEYMGR_CHAR_BIT;
  22.     }
  23. }
  24.  
  25. int main(void) {
  26.  
  27. 	printf("Begin \r\n");
  28. 	uint8_t m4lh_plain[SIA_KEYMGR_AES_BLOCK_BYTE_LEN];
  29. 	Sia_Keymgr_u32_to_n(m4lh_plain, (1u << 4) | 8u); /* set 32bit on the 128bit */
  30. 	for(int i = 0; i<SIA_KEYMGR_AES_BLOCK_BYTE_LEN; i++)
  31. 	{
  32. 		printf("current val = 0x%x,  \r\n",m4lh_plain[i]);
  33. 	}
  34. 	return 0;
  35. }
  36.  
  37.  
  38. uint8_t length_check_for_eeprom_2(uint8_t *buff)
  39. {
  40. 	uint8_t length=0;
  41. 	bool valid_data = false;
  42. 	uint8_t out;
  43.  
  44. 	for(int i = 0; i<256; i++)
  45. 	{
  46. 		if((*(buff + i)!=0xfe)||(*(buff + i + 1)!=0xfe))
  47. 		{
  48. 			//printf("current val = %d, next val = %d, length = %d \r\n",*(buff + i),*(buff + i + 1),length);
  49. 			length=length+1;
  50. 		}
  51. //		else if((*(buff + i)==0xfe)&&(*(buff + i + 1)==0xfe))
  52. //		{
  53. //			length++;
  54. //			valid_data = true;
  55. //			break;
  56. //		}
  57. 		else 
  58. 		{	length=length+1;
  59. 			valid_data = true;
  60. 			break;
  61. 		}
  62. 	}
  63. 	return (valid_data==true)? length+1 : 0;
  64. }
  65.  
  66. //must decalre array new_data[] with correct size before call this function
  67. void data_process(uint8_t *old_data, uint8_t old_data_size, uint8_t *old_al,uint8_t *new_data)
  68. {
  69. 	if(old_data_size == 0)
  70. 	{
  71. 		memcpy(new_data,old_al,9);
  72. 		*(new_data+9) = 0xfe;
  73. 	}
  74. 	else
  75. 	{
  76. 		memcpy(new_data,old_data,old_data_size);
  77. 		memcpy(new_data+old_data_size-1,old_al,9);
  78. 		*(new_data+old_data_size+8) = 0xfe;
  79. 	}
  80. }
  81.  
Success #stdin #stdout 0s 5268KB
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stdin
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Standard input is empty
stdout
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Begin 
current val = 0x0,  
current val = 0x0,  
current val = 0x0,  
current val = 0x18,  
current val = 0xe0,  
current val = 0x14,  
current val = 0x0,  
current val = 0x0,  
current val = 0x0,  
current val = 0x0,  
current val = 0x0,  
current val = 0x0,  
current val = 0x0,  
current val = 0x0,  
current val = 0x0,  
current val = 0x0,
https://ideone.com/QEcMft
language:
C (gcc 8.3)
created:
4 days ago
visibility:
public

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