apps/include/stdlib.h

   1 /*
   2     meinOS - A unix-like x86 microkernel operating system
   3     Copyright (C) 2008  Janosch Gräf <janosch.graef@gmx.net>
   4
   5     This program is free software: you can redistribute it and/or modify
   6     it under the terms of the GNU Lesser General Public License as published by
   7     the Free Software Foundation, either version 3 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU Lesser General Public License for more details.
  14
  15     You should have received a copy of the GNU Lesser General Public License
  16     along with this program.  If not, see <http://www.gnu.org/licenses/>.
  17 */
  18
  19 #ifndef _STDLIB_H_
  20 #define _STDLIB_H_
  21
  22 #include <sys/types.h>
  23 #include <limits.h>
  24 #include <stdint.h>
  25 #include <malloc.h>
  26 #include <string.h>
  27
  28 #ifndef EXIT_SUCCESS
  29   #define EXIT_SUCCESS 0
  30 #endif
  31 #ifndef EXIT_FAILURE
  32   #define EXIT_FAILURE 1
  33 #endif
  34
  35 #ifndef NULL
  36   #define NULL ((void*)0)
  37 #endif
  38
  39 #define on_exit(func) atexit(func)
  40
  41 typedef struct {
  42   int quot;
  43   int rem;
  44 } div_t;
  45
  46 void exit(int result);
  47 void _Exit(int result);
  48 void abort();
  49 int atexit(void (*function)(void));
  50 int system(const char *command);
  51
  52 int atoi(const char *str);
  53
  54 #define RAND_MAX  32767
  55 int rand_seed;
  56 void srand(int newseed);
  57 int rand();
  58
  59 int   abs(int num);
  60 div_t div(int numer, int denom);
  61
  62 char *getenv(const char *name);
  63 int setenv(const char *envname, const char *envval, int overwrite);
  64 int unsetenv(const char *name);
  65
  66 void *sbrk(intptr_t size);
  67 void* memalign(size_t, size_t);
  68
  69 char *realpath(const char *file_name,char *resolved_name);
  70
  71 static inline signed long strtol(const char *nptr,char **endptr,int base) {
  72   return (signed long)strntoumax(nptr,endptr,base,~(size_t)0);
  73 }
  74
  75 static inline signed long long strtoll(const char *nptr,char **endptr,int base) {
  76   return (signed long long)strntoumax(nptr,endptr,base,~(size_t)0);
  77 }
  78
  79 static inline unsigned long strtoul(const char *nptr,char **endptr,int base) {
  80   return (unsigned long)strntoumax(nptr,endptr,base,~(size_t)0);
  81 }
  82
  83 static inline unsigned long long strtoull(const char *nptr,char **endptr,int base) {
  84   return (unsigned long long)strntoumax(nptr,endptr,base,~(size_t)0);
  85 }
  86
  87
  88 #endif