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/*
* Jim - POSIX extension
*
* Copyright 2005 Salvatore Sanfilippo <antirez@invece.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE JIM TCL PROJECT ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* JIM TCL PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* The views and conclusions contained in the software and documentation
* are those of the authors and should not be interpreted as representing
* official policies, either expressed or implied, of the Jim Tcl Project.
*/
#include <sys/types.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include "jimautoconf.h"
#include <jim.h>
#ifdef HAVE_SYS_SYSINFO_H
#include <sys/sysinfo.h>
#endif
static void Jim_PosixSetError(Jim_Interp *interp)
{
Jim_SetResultString(interp, strerror(errno), -1);
}
#if defined(HAVE_FORK)
static int Jim_PosixForkCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
pid_t pid;
JIM_NOTUSED(argv);
if (argc != 1) {
Jim_WrongNumArgs(interp, 1, argv, "");
return JIM_ERR;
}
if ((pid = fork()) == -1) {
Jim_PosixSetError(interp);
return JIM_ERR;
}
Jim_SetResultInt(interp, (jim_wide) pid);
return JIM_OK;
}
#endif
static int Jim_PosixGetidsCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
Jim_Obj *objv[8];
if (argc != 1) {
Jim_WrongNumArgs(interp, 1, argv, "");
return JIM_ERR;
}
objv[0] = Jim_NewStringObj(interp, "uid", -1);
objv[1] = Jim_NewIntObj(interp, getuid());
objv[2] = Jim_NewStringObj(interp, "euid", -1);
objv[3] = Jim_NewIntObj(interp, geteuid());
objv[4] = Jim_NewStringObj(interp, "gid", -1);
objv[5] = Jim_NewIntObj(interp, getgid());
objv[6] = Jim_NewStringObj(interp, "egid", -1);
objv[7] = Jim_NewIntObj(interp, getegid());
Jim_SetResult(interp, Jim_NewListObj(interp, objv, 8));
return JIM_OK;
}
#define JIM_HOST_NAME_MAX 1024
static int Jim_PosixGethostnameCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
char *buf;
int rc = JIM_OK;
if (argc != 1) {
Jim_WrongNumArgs(interp, 1, argv, "");
return JIM_ERR;
}
buf = Jim_Alloc(JIM_HOST_NAME_MAX);
if (gethostname(buf, JIM_HOST_NAME_MAX) == -1) {
Jim_PosixSetError(interp);
Jim_Free(buf);
rc = JIM_ERR;
}
else {
Jim_SetResult(interp, Jim_NewStringObjNoAlloc(interp, buf, -1));
}
return rc;
}
static int Jim_PosixUptimeCommand(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
{
#ifdef HAVE_STRUCT_SYSINFO_UPTIME
struct sysinfo info;
if (argc != 1) {
Jim_WrongNumArgs(interp, 1, argv, "");
return JIM_ERR;
}
if (sysinfo(&info) == -1) {
Jim_PosixSetError(interp);
return JIM_ERR;
}
Jim_SetResultInt(interp, info.uptime);
#else
Jim_SetResultInt(interp, (long)time(NULL));
#endif
return JIM_OK;
}
int Jim_posixInit(Jim_Interp *interp)
{
if (Jim_PackageProvide(interp, "posix", "1.0", JIM_ERRMSG))
return JIM_ERR;
#ifdef HAVE_FORK
Jim_CreateCommand(interp, "os.fork", Jim_PosixForkCommand, NULL, NULL);
#endif
Jim_CreateCommand(interp, "os.getids", Jim_PosixGetidsCommand, NULL, NULL);
Jim_CreateCommand(interp, "os.gethostname", Jim_PosixGethostnameCommand, NULL, NULL);
Jim_CreateCommand(interp, "os.uptime", Jim_PosixUptimeCommand, NULL, NULL);
return JIM_OK;
}
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