samples: code style for sample_x86_32_gdt_and_seg_regs.c
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@ -103,7 +103,8 @@ do { \
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/******************************************************************************/
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/******************************************************************************/
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void hook_mem(uc_engine *uc, uc_mem_type type, uint64_t address, int size, int64_t value, void *user_data) {
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static void hook_mem(uc_engine *uc, uc_mem_type type, uint64_t address, int size, int64_t value, void *user_data)
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{
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switch(type) {
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switch(type) {
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case UC_MEM_WRITE:
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case UC_MEM_WRITE:
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printf("mem write at 0x%"PRIx64 ", size = %u, value = 0x%"PRIx64 "\n", address, size, value);
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printf("mem write at 0x%"PRIx64 ", size = %u, value = 0x%"PRIx64 "\n", address, size, value);
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@ -112,12 +113,14 @@ void hook_mem(uc_engine *uc, uc_mem_type type, uint64_t address, int size, int64
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}
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}
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}
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}
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void hook_code(uc_engine *uc, uint64_t address, uint32_t size, void *user_data) {
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static void hook_code(uc_engine *uc, uint64_t address, uint32_t size, void *user_data)
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{
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printf("Executing at 0x%"PRIx64 ", ilen = 0x%x\n", address, size);
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printf("Executing at 0x%"PRIx64 ", ilen = 0x%x\n", address, size);
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}
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}
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//VERY basic descriptor init function, sets many fields to user space sane defaults
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//VERY basic descriptor init function, sets many fields to user space sane defaults
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void init_descriptor(struct SegmentDescriptor *desc, uint32_t base, uint32_t limit, uint8_t is_code) {
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static void init_descriptor(struct SegmentDescriptor *desc, uint32_t base, uint32_t limit, uint8_t is_code)
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{
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desc->desc = 0; //clear the descriptor
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desc->desc = 0; //clear the descriptor
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desc->base0 = base & 0xffff;
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desc->base0 = base & 0xffff;
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desc->base1 = (base >> 16) & 0xff;
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desc->base1 = (base >> 16) & 0xff;
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@ -138,7 +141,9 @@ void init_descriptor(struct SegmentDescriptor *desc, uint32_t base, uint32_t lim
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desc->system = 1; //code or data
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desc->system = 1; //code or data
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}
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}
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void hex_dump(unsigned char *ptr, unsigned int len) {
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/*
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static void hex_dump(unsigned char *ptr, unsigned int len)
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{
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int i;
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int i;
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for (i = 0; i < len; i++) {
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for (i = 0; i < len; i++) {
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if (i != 0 && (i & 0xf) == 0) {
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if (i != 0 && (i & 0xf) == 0) {
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@ -148,8 +153,10 @@ void hex_dump(unsigned char *ptr, unsigned int len) {
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}
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}
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fprintf(stderr, "\n");
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fprintf(stderr, "\n");
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}
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}
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*/
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static void gdt_demo() {
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static void gdt_demo()
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{
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uc_engine *uc;
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uc_engine *uc;
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uc_hook hook1, hook2;
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uc_hook hook1, hook2;
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uc_err err;
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uc_err err;
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@ -273,12 +280,12 @@ mov dword [fs:4], 0x89abcdef
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assert(memcmp(buf, "\x67\x45\x23\x01\xef\xcd\xab\x89", 8) == 0);
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assert(memcmp(buf, "\x67\x45\x23\x01\xef\xcd\xab\x89", 8) == 0);
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uc_close(uc);
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uc_close(uc);
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}
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}
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/******************************************************************************/
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/******************************************************************************/
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int main(int argc, char **argv) {
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int main(int argc, char **argv)
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{
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gdt_demo();
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gdt_demo();
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fprintf(stderr, "success\n");
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fprintf(stderr, "success\n");
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