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      1 /*
      2  * stdlib.h
      3  */
      4 
      5 #ifndef _STDLIB_H
      6 #define _STDLIB_H
      7 
      8 #include <klibc/extern.h>
      9 #include <klibc/compiler.h>
     10 #include <stddef.h>
     11 
     12 #define EXIT_FAILURE 1
     13 #define EXIT_SUCCESS 0
     14 
     15 __extern __noreturn abort(void);
     16 static __inline__ int abs(int __n)
     17 {
     18     return (__n < 0) ? -__n : __n;
     19 }
     20 
     21 __extern int atexit(void (*)(void));
     22 __extern int on_exit(void (*)(int, void *), void *);
     23 __extern int atoi(const char *);
     24 __extern long atol(const char *);
     25 __extern long long atoll(const char *);
     26 __extern __noreturn exit(int);
     27 __extern __noreturn _Exit(int);
     28 __extern void free(void *);
     29 static __inline__ long labs(long __n)
     30 {
     31     return (__n < 0L) ? -__n : __n;
     32 }
     33 
     34 static __inline__ long long llabs(long long __n)
     35 {
     36     return (__n < 0LL) ? -__n : __n;
     37 }
     38 
     39 __extern __mallocfunc void *malloc(size_t);
     40 __extern __mallocfunc void *zalloc(size_t);
     41 __extern __mallocfunc void *calloc(size_t, size_t);
     42 __extern __mallocfunc void *realloc(void *, size_t);
     43 __extern long strtol(const char *, char **, int);
     44 __extern long long strtoll(const char *, char **, int);
     45 __extern unsigned long strtoul(const char *, char **, int);
     46 __extern unsigned long long strtoull(const char *, char **, int);
     47 
     48 static __inline__ char *getenv(const char *name)
     49 {
     50     (void)name;
     51     return NULL;
     52 }
     53 
     54 __extern int putenv(const char *);
     55 __extern int setenv(const char *, const char *, int);
     56 __extern int unsetenv(const char *);
     57 
     58 __extern void qsort(void *, size_t, size_t,
     59 		    int (*)(const void *, const void *));
     60 
     61 __extern long jrand48(unsigned short *);
     62 __extern long mrand48(void);
     63 __extern long nrand48(unsigned short *);
     64 __extern long lrand48(void);
     65 __extern unsigned short *seed48(const unsigned short *);
     66 __extern void srand48(long);
     67 
     68 #define RAND_MAX 0x7fffffff
     69 static __inline__ int rand(void)
     70 {
     71     return (int)lrand48();
     72 }
     73 
     74 static __inline__ void srand(unsigned int __s)
     75 {
     76     srand48(__s);
     77 }
     78 
     79 static __inline__ long random(void)
     80 {
     81     return lrand48();
     82 }
     83 
     84 static __inline__ void srandom(unsigned int __s)
     85 {
     86     srand48(__s);
     87 }
     88 
     89 /* Basic PTY functions.  These only work if devpts is mounted! */
     90 
     91 __extern int unlockpt(int);
     92 __extern char *ptsname(int);
     93 __extern int getpt(void);
     94 
     95 static __inline__ int grantpt(int __fd)
     96 {
     97     (void)__fd;
     98     return 0;			/* devpts does this all for us! */
     99 }
    100 
    101 #endif /* _STDLIB_H */
    102