drivermc.c
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1 #include <stdint.h>
2 #include <stdlib.h>
3 #include <stdio.h>
4 #include <string.h>
5 
6 int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size);
7 
8 #define MAX_INSTR_SIZE 64
9 #define MAX_LINE_SIZE 128
10 
11 int main(int argc, char** argv)
12 {
13  FILE * fp;
14  uint8_t Data[MAX_INSTR_SIZE];
15  char line[MAX_LINE_SIZE];
16  size_t Size;
17  char arch[MAX_LINE_SIZE];
18  char mode[MAX_LINE_SIZE];
19  unsigned int value;
20  int i;
21 
22  if (argc < 2) {
23  return 1;
24  }
25  for (i = 1; i < argc; i++) {
26  //opens the file, get its size, and reads it into a buffer
27  fp = fopen(argv[i], "rb");
28  if (fp == NULL) {
29  return 2;
30  }
31  printf("Trying %s\n", argv[i]);
32  if (fgets(line, MAX_LINE_SIZE, fp) == NULL) {
33  break;
34  }
35  if (line[0] == '#') {
36  if (sscanf(line, "# %[^,], %[^,]", arch, mode) != 2) {
37  printf("Wrong mode %s\n", line);
38  return 1;
39  }
40  if (strcmp(arch, "CS_ARCH_X86") == 0 && strcmp(mode, "CS_MODE_32") == 0) {
41  Data[0] = 0;
42  } else if (strcmp(arch, "CS_ARCH_X86") == 0 && strcmp(mode, "CS_MODE_64") == 0) {
43  Data[0] = 1;
44  } else if (strcmp(arch, "CS_ARCH_ARM") == 0 && strcmp(mode, "CS_MODE_ARM") == 0) {
45  Data[0] = 2;
46  } else if (strcmp(arch, "CS_ARCH_ARM") == 0 && strcmp(mode, "CS_MODE_THUMB") == 0) {
47  Data[0] = 3;
48  } else if (strcmp(arch, "CS_ARCH_ARM") == 0 && strcmp(mode, "CS_MODE_ARM+CS_MODE_V8") == 0) {
49  Data[0] = 4;
50  } else if (strcmp(arch, "CS_ARCH_ARM") == 0 && strcmp(mode, "CS_MODE_THUMB+CS_MODE_V8") == 0) {
51  Data[0] = 5;
52  } else if (strcmp(arch, "CS_ARCH_ARM") == 0 && strcmp(mode, "CS_MODE_THUMB+CS_MODE_MCLASS") == 0) {
53  Data[0] = 6;
54  } else if (strcmp(arch, "CS_ARCH_ARM64") == 0 && strcmp(mode, "0") == 0) {
55  Data[0] = 7;
56  } else if (strcmp(arch, "CS_ARCH_MIPS") == 0 && strcmp(mode, "CS_MODE_MIPS32+CS_MODE_BIG_ENDIAN") == 0) {
57  Data[0] = 8;
58  } else if (strcmp(arch, "CS_ARCH_MIPS") == 0 && strcmp(mode, "CS_MODE_MIPS32+CS_MODE_MICRO") == 0) {
59  Data[0] = 9;
60  } else if (strcmp(arch, "CS_ARCH_MIPS") == 0 && strcmp(mode, "CS_MODE_MIPS64") == 0) {
61  Data[0] = 10;
62  } else if (strcmp(arch, "CS_ARCH_MIPS") == 0 && strcmp(mode, "CS_MODE_MIPS32") == 0) {
63  Data[0] = 11;
64  } else if (strcmp(arch, "CS_ARCH_MIPS") == 0 && strcmp(mode, "CS_MODE_MIPS64+CS_MODE_BIG_ENDIAN") == 0) {
65  Data[0] = 12;
66  } else if (strcmp(arch, "CS_ARCH_MIPS") == 0 && strcmp(mode, "CS_MODE_MIPS32+CS_MODE_MICRO+CS_MODE_BIG_ENDIAN") == 0) {
67  Data[0] = 13;
68  } else if (strcmp(arch, "CS_ARCH_MIPS") == 0 && strcmp(mode, "CS_MODE_MIPS32+CS_MODE_BIG_ENDIAN+CS_MODE_MICRO") == 0) {
69  Data[0] = 13;
70  } else if (strcmp(arch, "CS_ARCH_PPC") == 0 && strcmp(mode, "CS_MODE_BIG_ENDIAN") == 0) {
71  Data[0] = 14;
72  } else if (strcmp(arch, "CS_ARCH_SPARC") == 0 && strcmp(mode, "CS_MODE_BIG_ENDIAN") == 0) {
73  Data[0] = 15;
74  } else if (strcmp(arch, "CS_ARCH_SPARC") == 0 && strcmp(mode, "CS_MODE_BIG_ENDIAN + CS_MODE_V9") == 0) {
75  Data[0] = 16;
76  } else if (strcmp(arch, "CS_ARCH_SYSZ") == 0 && strcmp(mode, "0") == 0) {
77  Data[0] = 17;
78  } else if (strcmp(arch, "CS_ARCH_XCORE") == 0 && strcmp(mode, "0") == 0) {
79  Data[0] = 18;
80  } else if (strcmp(arch, "CS_ARCH_MIPS") == 0 && strcmp(mode, "CS_MODE_MIPS32R6+CS_MODE_BIG_ENDIAN") == 0) {
81  Data[0] = 19;
82  } else if (strcmp(arch, "CS_ARCH_MIPS") == 0 && strcmp(mode, "CS_MODE_MIPS32R6+CS_MODE_MICRO+CS_MODE_BIG_ENDIAN") == 0) {
83  Data[0] = 20;
84  } else if (strcmp(arch, "CS_ARCH_MIPS") == 0 && strcmp(mode, "CS_MODE_MIPS32R6") == 0) {
85  Data[0] = 21;
86  } else if (strcmp(arch, "CS_ARCH_MIPS") == 0 && strcmp(mode, "CS_MODE_MIPS32R6+CS_MODE_MICRO") == 0) {
87  Data[0] = 22;
88  } else if (strcmp(arch, "CS_ARCH_M68K") == 0 && strcmp(mode, "0") == 0) {
89  Data[0] = 23;
90  } else if (strcmp(arch, "CS_ARCH_M680X") == 0 && strcmp(mode, "CS_MODE_M680X_6809") == 0) {
91  Data[0] = 24;
92  } else if (strcmp(arch, "CS_ARCH_EVM") == 0 && strcmp(mode, "0") == 0) {
93  Data[0] = 25;
94  } else {
95  printf("Unknown mode\n");
96  //fail instead of continue
97  return 1;
98  }
99  } else {
100  printf("No mode\n");
101  //fail instead of continue
102  return 1;
103  }
104 
105  while(1) {
106  if (fgets(line, MAX_LINE_SIZE, fp) == NULL) {
107  break;
108  }
109  Size = 1;
110  // we start line at offset 0 and Data buffer at offset 1
111  // since Data[0] is option : arch + mode
112  while (sscanf(line+(Size-1)*5, "0x%02x", &value) == 1) {
113  Data[Size] = value;
114  Size++;
115  if (line[(Size-1)*5-1] != ',') {
116  //end of pattern
117  break;
118  } else if (MAX_LINE_SIZE < (Size-1)*5) {
119  printf("Line overflow\n");
120  return 1;
121  }
122  }
123  //lauch fuzzer
124  LLVMFuzzerTestOneInput(Data, Size);
125  }
126  fclose(fp);
127  }
128  return 0;
129 }
130 
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autogenerated on Thu Mar 13 2025 02:59:13