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/*
* SCCS: @(#)syscall.c 1.5 (97/07/21)
*
* UniSoft Ltd., London, England
*
* (C) Copyright 1996 X/Open Company Limited
*
* All rights reserved. No part of this source code may be reproduced,
* stored in a retrieval system, or transmitted, in any form or by any
* means, electronic, mechanical, photocopying, recording or otherwise,
* except as stated in the end-user licence agreement, without the prior
* permission of the copyright owners.
* A copy of the end-user licence agreement is contained in the file
* Licence which accompanies this distribution.
*
* X/Open and the 'X' symbol are trademarks of X/Open Company Limited in
* the UK and other countries.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
/************************************************************************
SCCS: @(#)syscall.c 1.5 97/07/21 TETware release 3.3
NAME: syscall.c
PRODUCT: TETware
AUTHOR: Andrew Dingwall, UniSoft Ltd.
DATE CREATED: August 1996
DESCRIPTION:
functions which look like system calls
in TETware-Lite, each function invokes a system call on the
local system
in fully-featured TETware, each function invokes a server
interface function which instructs a TCCD to perform the
required action
MODIFICATIONS:
************************************************************************/
#include <stdio.h>
#include <sys/types.h>
#include <time.h>
#include <errno.h>
#ifdef TET_LITE /* -LITE-CUT-LINE- */
# include <sys/stat.h>
# include <unistd.h>
# include <signal.h>
# include <sys/wait.h>
#endif /* TET_LITE */ /* -LITE-CUT-LINE- */
#include "dtmac.h"
#include "dtmsg.h"
#include "error.h"
#include "servlib.h"
#include "dtetlib.h"
#include "tcc.h"
#include "tcclib.h"
#ifndef NOTRACE
#include "ltoa.h"
#endif
#ifdef TET_LITE /* -LITE-CUT-LINE- */
/* mode for created directories */
# define MODEANY ((mode_t) (S_IRWXU | S_IRWXG | S_IRWXO))
int tet_tcerrno; /* fake TCCD reply code */
#endif /* -LITE-CUT-LINE- */
/*
** all these functions set tet_tcerrno on return
**
** if an error is returned:
** if the error is a system error, errno is set to indicate
** the cause of the error;
** otherwise, errno is set to 0 and tet_tcerrno is set to
** indicate the cause of the error
*/
#ifdef TET_LITE /* -LITE-CUT-LINE- */
/* ARGSUSED */
#endif /* TET_LITE */ /* -LITE-CUT-LINE- */
int tcc_access(sysid, path, mode)
int sysid, mode;
char *path;
{
register int rc;
#ifdef TET_LITE /* -LITE-CUT-LINE- */
rc = tet_eaccess(path, mode);
tet_tcerrno = rc < 0 ? tet_maperrno(errno) : ER_OK;
#else /* -START-LITE-CUT- */
rc = tet_tcaccess(sysid, path, mode);
if (!IS_ER_ERRNO(tet_tcerrno))
errno = 0;
#endif /* -END-LITE-CUT- */
return(rc);
}
#ifdef TET_LITE /* -LITE-CUT-LINE- */
/* ARGSUSED */
#endif /* TET_LITE */ /* -LITE-CUT-LINE- */
int tcc_mkdir(sysid, dir)
int sysid;
char *dir;
{
register int rc;
#ifdef TET_LITE /* -LITE-CUT-LINE- */
rc = tet_mkdir(dir, MODEANY);
tet_tcerrno = rc < 0 ? tet_maperrno(errno) : ER_OK;
#else /* -START-LITE-CUT- */
rc = tet_tcmkdir(sysid, dir);
if (!IS_ER_ERRNO(tet_tcerrno))
errno = 0;
#endif /* -END-LITE-CUT- */
return(rc);
}
#ifdef TET_LITE /* -LITE-CUT-LINE- */
/* ARGSUSED */
#endif /* TET_LITE */ /* -LITE-CUT-LINE- */
int tcc_rmdir(sysid, dir)
int sysid;
char *dir;
{
register int rc;
#ifdef TET_LITE /* -LITE-CUT-LINE- */
rc = tet_rmdir(dir);
tet_tcerrno = rc < 0 ? tet_maperrno(errno) : ER_OK;
#else /* -START-LITE-CUT- */
rc = tet_tcrmdir(sysid, dir);
if (!IS_ER_ERRNO(tet_tcerrno))
errno = 0;
#endif /* -END-LITE-CUT- */
return(rc);
}
#ifdef TET_LITE /* -LITE-CUT-LINE- */
/* ARGSUSED */
#endif /* TET_LITE */ /* -LITE-CUT-LINE- */
int tcc_chdir(sysid, dir)
int sysid;
char *dir;
{
register int rc;
#ifdef TET_LITE /* -LITE-CUT-LINE- */
rc = CHDIR(dir);
tet_tcerrno = rc < 0 ? tet_maperrno(errno) : ER_OK;
#else /* -START-LITE-CUT- */
rc = tet_tcchdir(sysid, dir);
if (!IS_ER_ERRNO(tet_tcerrno))
errno = 0;
#endif /* -END-LITE-CUT- */
return(rc);
}
#ifdef TET_LITE /* -LITE-CUT-LINE- */
/* ARGSUSED */
#endif /* TET_LITE */ /* -LITE-CUT-LINE- */
int tcc_unlink(sysid, fname)
int sysid;
char *fname;
{
register int rc;
#ifdef TET_LITE /* -LITE-CUT-LINE- */
rc = UNLINK(fname);
tet_tcerrno = rc < 0 ? tet_maperrno(errno) : ER_OK;
#else /* -START-LITE-CUT- */
rc = tet_tcunlink(sysid, fname);
if (!IS_ER_ERRNO(tet_tcerrno))
errno = 0;
#endif /* -END-LITE-CUT- */
return(rc);
}
int tcc_kill(sysid, pid, signum)
int sysid, signum;
long pid;
{
register int rc;
TRACE4(tet_Ttcc, 4, "sending signal %s to pid %s on system %s",
tet_i2a(signum), tet_l2a(pid), tet_i2a(sysid));
#ifdef TET_LITE /* -LITE-CUT-LINE- */
rc = KILL(pid, signum);
tet_tcerrno = rc < 0 ? tet_maperrno(errno) : ER_OK;
#else /* -START-LITE-CUT- */
rc = tet_tckill(sysid, pid, signum);
if (!IS_ER_ERRNO(tet_tcerrno))
errno = 0;
#endif /* -END-LITE-CUT- */
return(rc);
}
int tcc_waitnohang(sysid, remid, statp)
int sysid, *statp;
long remid;
{
register int rc;
register int errsave;
#ifdef TET_LITE /* -LITE-CUT-LINE- */
pid_t pid;
int status;
#endif /* TET_LITE */ /* -LITE-CUT-LINE- */
TRACE3(tet_Ttcc, 4, "wait for pid %s on system %s",
tet_l2a(remid), tet_i2a(sysid));
#ifdef TET_LITE /* -LITE-CUT-LINE- */
if ((pid = waitpid((pid_t) remid, &status, WNOHANG)) == (pid_t) 0) {
tet_tcerrno = ER_WAIT;
rc = -1;
}
else if (pid == (pid_t) -1) {
tet_tcerrno = (errno == ECHILD) ? ER_PID : ER_ERR;
rc = -1;
}
else {
ASSERT(pid == (pid_t) remid);
tet_tcerrno = ER_OK;
*statp = tet_mapstatus(status);
rc = 0;
}
#else /* TET_LITE */ /* -START-LITE-CUT- */
rc = tet_tcwait(sysid, remid, 0, statp);
if (!IS_ER_ERRNO(tet_tcerrno))
errno = 0;
#endif /* TET_LITE */ /* -END-LITE-CUT- */
errsave = errno;
TRACE4(tet_Ttcc, 4, "wait returns %s, %s = %s", tet_i2a(rc),
rc < 0 ? "tet_tcerrno" : "status",
rc < 0 ? tet_ptrepcode(tet_tcerrno) : tet_i2x(*statp));
errno = errsave;
return(rc);
}
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