upscheme/c/os_unix.c

100 lines
1.8 KiB
C

#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <limits.h>
#include <math.h>
#include <setjmp.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "dtypes.h"
#include "utils.h"
#include "utf8.h"
#include "ios.h"
#include "socket.h"
#include "timefuncs.h"
#include "hashing.h"
#include "htable.h"
#include "htableh_inc.h"
#include "bitvector.h"
#include "os.h"
#include "random.h"
#include "llt.h"
#include "flisp.h"
#include "argcount.h"
#include "os.h"
void path_to_dirname(char *path)
{
char *p;
if (!(p = strrchr(path, '/'))) {
p = path;
}
*p = '\0';
}
void get_cwd(char *buf, size_t size) { getcwd(buf, size); }
int set_cwd(char *buf)
{
if (chdir(buf) == -1)
return 1;
return 0;
}
value_t builtin_pid(value_t *args, uint32_t nargs)
{
(void)args;
argcount("pid", nargs, 0);
return fixnum(getpid());
}
value_t builtin_parent_pid(value_t *args, uint32_t nargs)
{
(void)args;
argcount("parent-pid", nargs, 0);
return fixnum(getppid());
}
value_t builtin_process_group(value_t *args, uint32_t nargs)
{
(void)args;
argcount("process-group", nargs, 0);
return fixnum(getpgid(0));
}
value_t builtin_user_effective_gid(value_t *args, uint32_t nargs)
{
(void)args;
argcount("user-effective-gid", nargs, 0);
return fixnum(getegid());
}
value_t builtin_user_effective_uid(value_t *args, uint32_t nargs)
{
(void)args;
argcount("user-effective-uid", nargs, 0);
return fixnum(geteuid());
}
value_t builtin_user_real_gid(value_t *args, uint32_t nargs)
{
(void)args;
argcount("user-real-gid", nargs, 0);
return fixnum(getgid());
}
value_t builtin_user_real_uid(value_t *args, uint32_t nargs)
{
(void)args;
argcount("user-real-uid", nargs, 0);
return fixnum(getuid());
}