52 lines
1.3 KiB
C
52 lines
1.3 KiB
C
#pragma once
|
|
|
|
#include <unistd.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <dlfcn.h>
|
|
|
|
#include "log.h"
|
|
|
|
// Check Memory Allocation
|
|
#define ALLOC_CHECK(obj) \
|
|
{ \
|
|
if (obj == NULL) { \
|
|
ERR("(%s:%i) Memory Allocation Failed", __FILE__, __LINE__); \
|
|
} \
|
|
}
|
|
|
|
// Hook Library Function
|
|
#define HOOK(name, return_type, args) \
|
|
typedef return_type (*name##_t)args; \
|
|
static name##_t real_##name = NULL; \
|
|
\
|
|
__attribute__((__unused__)) static void ensure_##name() { \
|
|
if (!real_##name) { \
|
|
dlerror(); \
|
|
real_##name = (name##_t) dlsym(RTLD_NEXT, #name); \
|
|
if (!real_##name) { \
|
|
ERR("Error Resolving Symbol: "#name": %s", dlerror()); \
|
|
} \
|
|
} \
|
|
}; \
|
|
\
|
|
__attribute__((__used__)) return_type name args
|
|
|
|
// Macro To Reset Environmental Variables To Pre-MCPI State
|
|
#define RESET_ENVIRONMENTAL_VARIABLE(name) \
|
|
{ \
|
|
char *original_env_value = getenv("ORIGINAL_" name); \
|
|
if (original_env_value != NULL) { \
|
|
setenv(name, original_env_value, 1); \
|
|
} else { \
|
|
unsetenv(name); \
|
|
} \
|
|
}
|
|
|
|
// Safe Version Of pipe()
|
|
static inline void safe_pipe2(int pipefd[2], int flags) {
|
|
if (pipe2(pipefd, flags) != 0) {
|
|
ERR("Unable To Create Pipe: %s", strerror(errno));
|
|
}
|
|
}
|