72 lines
1.2 KiB
C
72 lines
1.2 KiB
C
/*
|
|
@file generation.c
|
|
*/
|
|
#include <errno.h>
|
|
#include <malloc.h>
|
|
#include <string.h>
|
|
#include <sys/mman.h>
|
|
#include <unistd.h>
|
|
|
|
int reproduce(void *pic_address, int *pic_size)
|
|
{
|
|
int status = 0;
|
|
|
|
printf("{\"address\": \"%p\",\"length\": \"%d\"}\n", pic_address,
|
|
*pic_size);
|
|
|
|
status = 1;
|
|
CLONE_CLEANUP:
|
|
|
|
return status;
|
|
}
|
|
|
|
int generation(void *child, int *child_len)
|
|
{
|
|
int status = 0;
|
|
|
|
int prot = (PROT_READ | PROT_WRITE | PROT_EXEC);
|
|
int flags = (MAP_ANON | MAP_PRIVATE);
|
|
void *pic_buffer = mmap(NULL, child_len, prot, flags, -1, 0);
|
|
|
|
if (MAP_FAILED == pic_buffer)
|
|
{
|
|
status = errno;
|
|
goto GEN_CLEANUP;
|
|
}
|
|
|
|
memcpy(child, pic_buffer, *child_len);
|
|
|
|
int (*reproduce_function)(void *, int) = reproduce;
|
|
void (*pic_function)(void *, int *, void *) = pic_buffer;
|
|
|
|
pic_function(pic_buffer, child_len, reproduce_function);
|
|
|
|
status = 1;
|
|
GEN_CLEANUP:
|
|
|
|
return status;
|
|
}
|
|
|
|
int gen_fork(void *child, int *child_len)
|
|
{
|
|
pid_t process_id;
|
|
int status = 0;
|
|
|
|
*child_len = 999;
|
|
|
|
return 0;
|
|
|
|
process_id = fork();
|
|
|
|
if (0 == process_id)
|
|
{
|
|
status = generation(child, child_len);
|
|
if (status)
|
|
{
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
return 0;
|
|
}
|