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/* Gwrapc.c wrap libc functions for mc.
Copyright (C) 2005-2024 Free Software Foundation, Inc.
Contributed by Gaius Mulley <gaius@glam.ac.uk>.
This file is part of GNU Modula-2.
GNU Modula-2 is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Modula-2 is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Modula-2; see the file COPYING3. If not see
<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
#include "ansidecl.h"
#include "gm2-libs-host.h"
#ifdef __cplusplus
extern "C" {
#endif
/* strtime returns the address of a string which describes the
local time. */
char *
wrapc_strtime (void)
{
#if defined(HAVE_CTIME)
time_t clock = time ((time_t *)0);
char *string = ctime (&clock);
string[24] = (char)0;
return string;
#else
return "";
#endif
}
int
wrapc_filesize (int f, unsigned int *low, unsigned int *high)
{
struct stat s;
int res = fstat (f, (struct stat *)&s);
if (res == 0)
{
*low = (unsigned int)s.st_size;
*high = (unsigned int)(s.st_size >> (sizeof (unsigned int) * 8));
}
return res;
}
/* filemtime returns the mtime of a file, f. */
int
wrapc_filemtime (int f)
{
struct stat s;
if (fstat (f, (struct stat *)&s) == 0)
return s.st_mtime;
else
return -1;
}
/* getrand returns a random number between 0..n-1 */
int
wrapc_getrand (int n)
{
return rand () % n;
}
#if defined(HAVE_PWD_H)
#include <pwd.h>
char *
wrapc_getusername (void)
{
return getpwuid (getuid ())->pw_gecos;
}
/* getnameuidgid fills in the, uid, and, gid, which represents
user, name. */
void
wrapc_getnameuidgid (char *name, int *uid, int *gid)
{
struct passwd *p = getpwnam (name);
if (p == NULL)
{
*uid = -1;
*gid = -1;
}
else
{
*uid = p->pw_uid;
*gid = p->pw_gid;
}
}
#else
char *
wrapc_getusername (void)
{
return "unknown";
}
void
wrapc_getnameuidgid (char *name, int *uid, int *gid)
{
*uid = -1;
*gid = -1;
}
#endif
int
wrapc_signbit (double r)
{
#if defined(HAVE_SIGNBIT)
/* signbit is a macro which tests its argument against sizeof(float),
sizeof(double). */
return signbit (r);
#else
return 0;
#endif
}
int
wrapc_signbitl (long double r)
{
#if defined(HAVE_SIGNBITL)
/* signbit is a macro which tests its argument against sizeof(float),
sizeof(double). */
return signbitl (r);
#else
return 0;
#endif
}
int
wrapc_signbitf (float r)
{
#if defined(HAVE_SIGNBITF)
/* signbit is a macro which tests its argument against sizeof(float),
sizeof(double). */
return signbitf (r);
#else
return 0;
#endif
}
/* SeekSet return the system libc SEEK_SET value. */
int
wrapc_SeekSet (void)
{
return SEEK_SET;
}
/* SeekEnd return the system libc SEEK_END value. */
int
wrapc_SeekEnd (void)
{
return SEEK_END;
}
/* ReadOnly return the system value of O_RDONLY. */
int
wrapc_ReadOnly (void)
{
return O_RDONLY;
}
/* WriteOnly return the system value of O_WRONLY. */
int
wrapc_WriteOnly (void)
{
return O_WRONLY;
}
/* init constructor for the module. */
void
_M2_wrapc_init ()
{
}
/* finish deconstructor for the module. */
void
_M2_wrapc_finish ()
{
}
#ifdef __cplusplus
}
#endif
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