/*
* Copyright (c) 1998, 2005, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <ctype.h>
#include "sys.h"
#include "util.h"
#if defined(LINUX) || defined(_ALLBSD_SOURCE)
/* Linux */
#define FORK() fork()
#else
/* Solaris (make sure we always get the POSIX-specified behavior) */
#define FORK() fork1()
#endif
static char *skipWhitespace(char *p) {
while ((*p != '\0') && isspace(*p)) {
p++;
}
return p;
}
static char *skipNonWhitespace(char *p) {
while ((*p != '\0') && !isspace(*p)) {
p++;
}
return p;
}
int
dbgsysExec(char *cmdLine)
{
int i;
int argc;
pid_t pid_err = (pid_t)(-1); /* this is the error return value */
pid_t pid;
char **argv = NULL;
char *p;
char *args;
/* Skip leading whitespace */
cmdLine = skipWhitespace(cmdLine);
/*LINTED*/
args = jvmtiAllocate((jint)strlen(cmdLine)+1);
if (args == NULL) {
return SYS_NOMEM;
}
(void)strcpy(args, cmdLine);
p = args;
argc = 0;
while (*p != '\0') {
p = skipNonWhitespace(p);
argc++;
if (*p == '\0') {
break;
}
p = skipWhitespace(p);
}
/*LINTED*/
argv = jvmtiAllocate((argc + 1) * (jint)sizeof(char *));
if (argv == 0) {
jvmtiDeallocate(args);
return SYS_NOMEM;
}
for (i = 0, p = args; i < argc; i++) {
argv[i] = p;
p = skipNonWhitespace(p);
*p++ = '\0';
p = skipWhitespace(p);
}
argv[i] = NULL; /* NULL terminate */
if ((pid = FORK()) == 0) {
/* Child process */
int i;
long max_fd;
/* close everything */
max_fd = sysconf(_SC_OPEN_MAX);
/*LINTED*/
for (i = 3; i < (int)max_fd; i++) {
(void)close(i);
}
(void)execvp(argv[0], argv);
exit(-1);
}
jvmtiDeallocate(args);
jvmtiDeallocate(argv);
if (pid == pid_err) {
return SYS_ERR;
} else {
return SYS_OK;
}
}