toolkit/crashreporter/google-breakpad/src/third_party/libdisasm/x86_imm.c@6474c204b198
toolkit/crashreporter/google-breakpad/src/third_party/libdisasm/x86_imm.c
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
1 #include "qword.h"
2 #include "x86_imm.h"
4 #include <stdio.h>
6 unsigned int x86_imm_signsized( unsigned char * buf, size_t buf_len,
7 void *dest, unsigned int size ) {
8 signed char *cp = (signed char *) dest;
9 signed short *sp = (signed short *) dest;
10 int32_t *lp = (int32_t *) dest;
11 qword_t *qp = (qword_t *) dest;
13 if ( size > buf_len ) {
14 return 0;
15 }
17 /* Copy 'size' bytes from *buf to *op
18 * return number of bytes copied */
19 switch (size) {
20 case 1: /* BYTE */
21 *cp = *((signed char *) buf);
22 break;
23 case 2: /* WORD */
24 *sp = *((signed short *) buf);
25 break;
26 case 6:
27 case 8: /* QWORD */
28 *qp = *((qword_t *) buf);
29 break;
30 case 4: /* DWORD */
31 default:
32 *lp = *((int32_t *) buf);
33 break;
34 }
35 return (size);
36 }
38 unsigned int x86_imm_sized( unsigned char * buf, size_t buf_len, void *dest,
39 unsigned int size ) {
40 unsigned char *cp = (unsigned char *) dest;
41 unsigned short *sp = (unsigned short *) dest;
42 uint32_t *lp = (uint32_t *) dest;
43 qword_t *qp = (qword_t *) dest;
45 if ( size > buf_len ) {
46 return 0;
47 }
49 /* Copy 'size' bytes from *buf to *op
50 * return number of bytes copied */
51 switch (size) {
52 case 1: /* BYTE */
53 *cp = *((unsigned char *) buf);
54 break;
55 case 2: /* WORD */
56 *sp = *((unsigned short *) buf);
57 break;
58 case 6:
59 case 8: /* QWORD */
60 *qp = *((qword_t *) buf);
61 break;
62 case 4: /* DWORD */
63 default:
64 *lp = *((uint32_t *) buf);
65 break;
66 }
68 return (size);
69 }
