1 /* udis86 - udcli/udcli.c
3 * Copyright (c) 2002-2009 Vivek Thampi
6 * Redistribution and use in source and binary forms, with or without modification,
7 * are permitted provided that the following conditions are met:
9 * * Redistributions of source code must retain the above copyright notice,
10 * this list of conditions and the following disclaimer.
11 * * Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
21 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
22 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
24 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 #if defined(__amd64__) || defined(__x86_64__)
39 #if defined(__DJGPP__) || defined(_WIN32)
45 # include <unistd.h> /* for isatty() */
46 # define _setmode setmode
47 # define _fileno fileno
48 # define _O_BINARY O_BINARY
54 "Usage: %s [-option[s]] file\n"
56 " -16 : Set the disassembly mode to 16 bits. \n"
57 " -32 : Set the disassembly mode to 32 bits. (default)\n"
58 " -64 : Set the disassembly mode to 64 bits.\n"
59 " -intel : Set the output to INTEL (NASM like) syntax. (default)\n"
60 " -att : Set the output to AT&T (GAS like) syntax.\n"
61 " -v <v> : Set vendor. <v> = {intel, amd}.\n"
62 " -o <pc> : Set the value of program counter to <pc>. (default = 0)\n"
63 " -s <n> : Set the number of bytes to skip before disassembly to <n>.\n"
64 " -c <n> : Set the number of bytes to disassemble to <n>.\n"
65 " -x : Set the input mode to whitespace seperated 8-bit numbers in\n"
66 " hexadecimal representation. Example: 0f 01 ae 00\n"
67 " -noff : Do not display the offset of instructions.\n"
68 " -nohex : Do not display the hexadecimal code of instructions.\n"
69 " -h : Display this help message.\n"
70 " --version: Show version.\n"
72 "Udcli is a front-end to the Udis86 Disassembler Library.\n"
73 "http://udis86.sourceforge.net/\n"
79 unsigned char o_do_count= 0;
80 unsigned char o_do_off = 1;
81 unsigned char o_do_hex = 1;
82 unsigned char o_do_x = 0;
83 unsigned o_vendor = UD_VENDOR_AMD;
85 int input_hook_x(ud_t* u);
86 int input_hook_file(ud_t* u);
88 int main(int argc, char **argv)
90 char *prog_path = *argv;
97 ud_set_mode(&ud_obj, 32);
98 ud_set_syntax(&ud_obj, UD_SYN_INTEL);
101 if ( !isatty( fileno( stdin ) ) )
103 #if defined(__DJGPP) || defined(_WIN32)
104 _setmode(_fileno(stdin), _O_BINARY);
111 /* loop through the args */
113 if (strcmp(*argv,"-16") == 0) {
114 ud_set_mode(&ud_obj, 16);
116 } else if (strcmp(*argv,"-32") == 0) {
117 ud_set_mode(&ud_obj, 32);
119 } else if (strcmp(*argv,"-64") == 0) {
120 ud_set_mode(&ud_obj, 64);
122 } else if (strcmp(*argv,"-intel") == 0)
123 ud_set_syntax(&ud_obj, UD_SYN_INTEL);
124 else if (strcmp(*argv,"-att") == 0)
125 ud_set_syntax(&ud_obj, UD_SYN_ATT);
126 else if (strcmp(*argv,"-noff") == 0)
128 else if (strcmp(*argv,"-nohex") == 0)
130 else if (strcmp(*argv,"-x") == 0)
132 else if (strcmp(*argv,"-s") == 0)
135 if (sscanf(s, "%" FMT "d", &o_skip) == 0)
136 fprintf(stderr, "Invalid value given for -s.\n");
138 fprintf(stderr, "No value given for -s.\n");
139 printf(help, prog_path);
142 else if (strcmp(*argv,"-c") == 0)
146 if (sscanf(s, "%" FMT "d", &o_count) == 0)
147 fprintf(stderr, "Invalid value given for -c.\n");
149 fprintf(stderr, "No value given for -c.\n");
150 printf(help, prog_path);
153 else if (strcmp(*argv,"-v") == 0)
157 ud_set_vendor(&ud_obj, UD_VENDOR_INTEL);
159 fprintf(stderr, "No value given for -v.\n");
160 printf(help, prog_path);
163 else if (strcmp(*argv,"-o") == 0) {
167 if (sscanf(s, "%" FMT "x", &pc) == 0)
168 fprintf(stderr, "Invalid value given for -o.\n");
169 ud_set_pc(&ud_obj, pc);
171 fprintf(stderr, "No value given for -o.\n");
172 printf(help, prog_path);
175 } else if ( strcmp( *argv, "--version" ) == 0 ) {
176 fprintf(stderr, "%s\n", PACKAGE_STRING );
178 } else if((*argv)[0] == '-') {
179 fprintf(stderr, "Invalid option %s.\n", *argv);
180 printf(help, prog_path);
186 fprintf(stderr, "Multiple files specified.\n");
189 if ((fptr = fopen(s, "rb")) == NULL) {
190 fprintf(stderr, "Failed to open file: %s.\n", s);
198 ud_set_input_hook(&ud_obj, input_hook_x);
199 else ud_set_input_hook(&ud_obj, input_hook_file);
203 ud_input_skip(&ud_obj, o_skip);
206 /* disassembly loop */
207 while (ud_disassemble(&ud_obj)) {
209 printf("%016" FMT "x ", ud_insn_off(&ud_obj));
213 hex1 = ud_insn_hex(&ud_obj);
217 printf("%-16s %-24s", hex1, ud_insn_asm(&ud_obj));
219 if (strlen(hex1) > 16) {
222 printf("%15s -", "");
223 printf("%-16s", hex2);
226 else printf(" %-24s", ud_insn_asm(&ud_obj));
235 int input_hook_x(ud_t* u)
245 i = fscanf(fptr, "%x", &c);
250 fprintf(stderr, "Error: Invalid input, should be in hexadecimal form (8-bit).\n");
254 fprintf(stderr, "Warning: Casting non-8-bit input (%x), to %x.\n", c, c & 0xFF);
255 return (int) (c & 0xFF);
258 int input_hook_file(ud_t* u)
268 if ((c = fgetc(fptr)) == EOF)