user.h

   1 struct stat;
   2
   3 // system calls
   4 int fork(void);
   5 int exit(void) __attribute__((noreturn));
   6 int wait(void);
   7 int pipe(int*);
   8 int write(int, void*, int);
   9 int read(int, void*, int);
  10 int close(int);
  11 int kill(int);
  12 int exec(char*, char**);
  13 int open(char*, int);
  14 int mknod(char*, short, short);
  15 int unlink(char*);
  16 int fstat(int fd, struct stat*);
  17 int link(char*, char*);
  18 int mkdir(char*);
  19 int chdir(char*);
  20 int dup(int);
  21 int getpid(void);
  22 char* sbrk(int);
  23 int sleep(int);
  24 int uptime(void);
  25
  26 // ulib.c
  27 int stat(char*, struct stat*);
  28 char* strcpy(char*, char*);
  29 void *memmove(void*, void*, int);
  30 char* strchr(const char*, char c);
  31 int strcmp(const char*, const char*);
  32 void printf(int, char*, ...);
  33 char* gets(char*, int max);
  34 uint strlen(char*);
  35 void* memset(void*, int, uint);
  36 void* malloc(uint);
  37 void free(void*);
  38 int atoi(const char*);