check_syscalls.h

#ifndef CHECK_SYSCALLS_H
#define CHECK_SYSCALLS_H
#include <stdio.h>
#include <stdlib.h>
#include <inttypes.h>
#include <sys/types.h>

void system_error(char *errmsg);
FILE *check_fopen(char *filename, char *mode);
FILE *check_popen(char *command, char *mode);
void *check_realloc(void *ptr, size_t size, char *reason);
size_t check_fread(void *ptr, size_t size, size_t nitems, FILE *stream);
void check_limited_funread(void *ptr, size_t size, size_t nitems);
size_t check_fwrite(void *ptr, size_t size, size_t nitems, FILE *stream);
void check_fseeko(FILE *stream, off_t offset, int whence);
void check_lseek(int fd, off_t offset, int whence);
char *check_fgets(char *ptr, size_t size, FILE *stream);
FILE *check_rw_socket(char *command, pid_t *pid);
void rw_socket_close(FILE *res, pid_t pid);
void *check_mmap_file(char *filename, char mode, int64_t *length);
pid_t check_waitpid(pid_t pid);
void check_fskip(FILE *stream, off_t offset, char *buffer, size_t buf_size);

#define check_fprintf(file, ...) { if (fprintf(file, __VA_ARGS__) <= 0)	{  \
      fprintf(stderr, "[Error] Failed printf to fileno %d!\n", fileno(file)); \
      perror("[Error] Reason"); \
      exit(1); \
    }}

#define stringify(x) #x
#define to_string(x) stringify(x)
#define check_realloc_s(x,y,z) { (x) = check_realloc((x),((int64_t)(y))*((int64_t)(z)), "Reallocating " #x " at " __FILE__ ":" to_string(__LINE__)); }
#define check_malloc_s(x,y,z) check_realloc(NULL,((int64_t)(y))*((int64_t)(z)), "Allocating " #x " at " __FILE__ ":" to_string(__LINE__));

#define check_realloc_var(x,size,cur,new) { if (cur < new) { cur = new; check_realloc_s(x,size,new); } }
#define check_realloc_every(x,size,cur,num) { if (!((cur)%(num))) { check_realloc_s(x,size,(cur)+(num)); } }
#define check_realloc_smart(x,size,cur,new) { if (cur < new) { cur = (new)*1.05 + 1000; check_realloc_s(x,size,cur); } }

#endif /* CHECK_SYSCALLS_H */