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comparison udis86-1.4/udcli/udcli.c @ 1:4a9dcbd9e54f

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-files of 0.13 beta -fixes so that it now compiles with the current dmd version
author marton@basel.hu
date Tue, 05 Apr 2011 20:44:01 +0200
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0:586e4a649642 1:4a9dcbd9e54f
1 /* -----------------------------------------------------------------------------
2 * udcli.c - front end to udis86.
3 *
4 * Copyright (c) 2004, 2005, 2006 Vivek Mohan <vivek@sig9.com>
5 * All rights reserved.
6 * See (LICENSE)
7 * -----------------------------------------------------------------------------
8 */
9
10 #include <stdlib.h>
11 #include <stdio.h>
12 #include <string.h>
13 #include <ctype.h>
14 #include "../udis86.h"
15
16 #if defined(__amd64__) || defined(__x86_64__)
17 # define FMT "l"
18 #else
19 # define FMT "ll"
20 #endif
21
22 #ifdef _WIN32
23 # include <io.h>
24 # include <fcntl.h>
25 #endif
26
27 /* help string */
28 static char help[] =
29 {
30 "Usage: %s [-option[s]] file\n"
31 "Options:\n"
32 " -16 : Set the disassembly mode to 16 bits. \n"
33 " -32 : Set the disassembly mode to 32 bits. (default)\n"
34 " -64 : Set the disassembly mode to 64 bits.\n"
35 " -intel : Set the output to INTEL (NASM like) syntax. (default)\n"
36 " -att : Set the output to AT&T (GAS like) syntax.\n"
37 " -v <v> : Set vendor. <v> = {intel, amd}.\n"
38 " -o <pc> : Set the value of program counter to <pc>. (default = 0)\n"
39 " -s <n> : Set the number of bytes to skip before disassembly to <n>.\n"
40 " -c <n> : Set the number of bytes to disassemble to <n>.\n"
41 " -x : Set the input mode to whitespace seperated 8-bit numbers in\n"
42 " hexadecimal representation. Example: 0f 01 ae 00\n"
43 " -noff : Do not display the offset of instructions.\n"
44 " -nohex : Do not display the hexadecimal code of instructions.\n"
45 " -h : Display this help message.\n"
46 "\n"
47 "Udcli is a front-end to the Udis86 Disassembler Library.\n"
48 "http://udis86.sourceforge.net/\n"
49 };
50
51 FILE* fptr = NULL;
52 uint64_t o_skip = 0;
53 uint64_t o_count = 0;
54 unsigned char o_do_count= 0;
55 unsigned char o_do_off = 1;
56 unsigned char o_do_hex = 1;
57 unsigned char o_do_x = 0;
58 unsigned o_vendor = UD_VENDOR_AMD;
59
60 int input_hook_x(ud_t* u);
61 int input_hook_file(ud_t* u);
62
63 int main(int argc, char **argv)
64 {
65 char *prog_path = *argv;
66 char *s;
67 ud_t ud_obj;
68 int mode = 0;
69
70 /* initialize */
71 ud_init(&ud_obj);
72 ud_set_mode(&ud_obj, 32);
73 ud_set_syntax(&ud_obj, UD_SYN_INTEL);
74
75 #ifdef _WIN32
76 _setmode(_fileno(stdin), _O_BINARY);
77 #endif
78
79 fptr = stdin;
80
81 argv++;
82
83 /* loop through the args */
84 while(--argc > 0) {
85 if (strcmp(*argv,"-16") == 0) {
86 ud_set_mode(&ud_obj, 16);
87 mode = 16;
88 } else if (strcmp(*argv,"-32") == 0) {
89 ud_set_mode(&ud_obj, 32);
90 mode = 32;
91 } else if (strcmp(*argv,"-64") == 0) {
92 ud_set_mode(&ud_obj, 64);
93 mode = 64;
94 } else if (strcmp(*argv,"-intel") == 0)
95 ud_set_syntax(&ud_obj, UD_SYN_INTEL);
96 else if (strcmp(*argv,"-att") == 0)
97 ud_set_syntax(&ud_obj, UD_SYN_ATT);
98 else if (strcmp(*argv,"-noff") == 0)
99 o_do_off = 0;
100 else if (strcmp(*argv,"-nohex") == 0)
101 o_do_hex = 0;
102 else if (strcmp(*argv,"-x") == 0)
103 o_do_x = 1;
104 else if (strcmp(*argv,"-s") == 0)
105 if (--argc) {
106 s = *(++argv);
107 if (sscanf(s, "%" FMT "d", &o_skip) == 0)
108 fprintf(stderr, "Invalid value given for -s.\n");
109 } else {
110 fprintf(stderr, "No value given for -s.\n");
111 printf(help, prog_path);
112 exit(EXIT_FAILURE);
113 }
114 else if (strcmp(*argv,"-c") == 0)
115 if (--argc) {
116 o_do_count= 1;
117 s = *(++argv);
118 if (sscanf(s, "%" FMT "d", &o_count) == 0)
119 fprintf(stderr, "Invalid value given for -c.\n");
120 } else {
121 fprintf(stderr, "No value given for -c.\n");
122 printf(help, prog_path);
123 exit(EXIT_FAILURE);
124 }
125 else if (strcmp(*argv,"-v") == 0)
126 if (--argc) {
127 s = *(++argv);
128 if (*s == 'i')
129 ud_set_vendor(&ud_obj, UD_VENDOR_INTEL);
130 } else {
131 fprintf(stderr, "No value given for -v.\n");
132 printf(help, prog_path);
133 exit(EXIT_FAILURE);
134 }
135 else if (strcmp(*argv,"-o") == 0) {
136 if (--argc) {
137 uint64_t pc = 0;
138 s = *(++argv);
139 if (sscanf(s, "%" FMT "x", &pc) == 0)
140 fprintf(stderr, "Invalid value given for -o.\n");
141 ud_set_pc(&ud_obj, pc);
142 } else {
143 fprintf(stderr, "No value given for -o.\n");
144 printf(help, prog_path);
145 exit(EXIT_FAILURE);
146 }
147 } else if((*argv)[0] == '-') {
148 fprintf(stderr, "Invalid option %s.\n", *argv);
149 printf(help, prog_path);
150 exit(EXIT_FAILURE);
151 } else {
152 static int i = 0;
153 s = *argv;
154 if (i) {
155 fprintf(stderr, "Multiple files specified.\n");
156 exit(EXIT_FAILURE);
157 } else i = 1;
158 if ((fptr = fopen(s, "rb")) == NULL) {
159 fprintf(stderr, "Failed to open file: %s.\n", s);
160 exit(EXIT_FAILURE);
161 }
162 }
163 argv++;
164 }
165
166 if (o_do_x)
167 ud_set_input_hook(&ud_obj, input_hook_x);
168 else ud_set_input_hook(&ud_obj, input_hook_file);
169
170 if (o_skip) {
171 o_count += o_skip;
172 ud_input_skip(&ud_obj, o_skip);
173 }
174
175 /* disassembly loop */
176 while (ud_disassemble(&ud_obj)) {
177 if (o_do_off)
178 printf("%016" FMT "x ", ud_insn_off(&ud_obj));
179 if (o_do_hex) {
180 char* hex1, *hex2;
181 char c;
182 hex1 = ud_insn_hex(&ud_obj);
183 hex2 = hex1 + 16;
184 c = hex1[16];
185 hex1[16] = 0;
186 printf("%-16s %-24s", hex1, ud_insn_asm(&ud_obj));
187 hex1[16] = c;
188 if (strlen(hex1) > 16) {
189 printf("\n");
190 if (o_do_off)
191 printf("%15s -", "");
192 printf("%-16s", hex2);
193 }
194 }
195 else printf(" %-24s", ud_insn_asm(&ud_obj));
196
197 printf("\n");
198 }
199
200 exit(EXIT_SUCCESS);
201 return 0;
202 }
203
204 int input_hook_x(ud_t* u)
205 {
206 unsigned int c, i;
207
208 if (o_do_count) {
209 if (! o_count)
210 return UD_EOI;
211 else --o_count;
212 }
213
214 i = fscanf(fptr, "%x", &c);
215
216 if (i == EOF)
217 return UD_EOI;
218 if (i == 0) {
219 fprintf(stderr, "Error: Invalid input, should be in hexadecimal form (8-bit).\n");
220 return UD_EOI;
221 }
222 if (c > 0xFF)
223 fprintf(stderr, "Warning: Casting non-8-bit input (%x), to %x.\n", c, c & 0xFF);
224 return (int) (c & 0xFF);
225 }
226
227 int input_hook_file(ud_t* u)
228 {
229 int c;
230
231 if (o_do_count) {
232 if (! o_count) {
233 return -1;
234 } else o_count -- ;
235 }
236
237 if ((c = fgetc(fptr)) == EOF)
238 return UD_EOI;
239 return c;
240 }