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