J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-2005 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #include <stdlib.h> |
| 27 | #include <unistd.h> |
| 28 | #include <string.h> |
| 29 | #include <ctype.h> |
| 30 | #include "sys.h" |
| 31 | #include "util.h" |
| 32 | |
| 33 | #ifdef LINUX |
| 34 | /* Linux */ |
| 35 | #define FORK() fork() |
| 36 | #else |
| 37 | /* Solaris (make sure we always get the POSIX-specified behavior) */ |
| 38 | #define FORK() fork1() |
| 39 | #endif |
| 40 | |
| 41 | static char *skipWhitespace(char *p) { |
| 42 | while ((*p != '\0') && isspace(*p)) { |
| 43 | p++; |
| 44 | } |
| 45 | return p; |
| 46 | } |
| 47 | |
| 48 | static char *skipNonWhitespace(char *p) { |
| 49 | while ((*p != '\0') && !isspace(*p)) { |
| 50 | p++; |
| 51 | } |
| 52 | return p; |
| 53 | } |
| 54 | |
| 55 | int |
| 56 | dbgsysExec(char *cmdLine) |
| 57 | { |
| 58 | int i; |
| 59 | int argc; |
| 60 | pid_t pid_err = (pid_t)(-1); /* this is the error return value */ |
| 61 | pid_t pid; |
| 62 | char **argv = NULL; |
| 63 | char *p; |
| 64 | char *args; |
| 65 | |
| 66 | /* Skip leading whitespace */ |
| 67 | cmdLine = skipWhitespace(cmdLine); |
| 68 | |
| 69 | /*LINTED*/ |
| 70 | args = jvmtiAllocate((jint)strlen(cmdLine)+1); |
| 71 | if (args == NULL) { |
| 72 | return SYS_NOMEM; |
| 73 | } |
| 74 | (void)strcpy(args, cmdLine); |
| 75 | |
| 76 | p = args; |
| 77 | |
| 78 | argc = 0; |
| 79 | while (*p != '\0') { |
| 80 | p = skipNonWhitespace(p); |
| 81 | argc++; |
| 82 | if (*p == '\0') { |
| 83 | break; |
| 84 | } |
| 85 | p = skipWhitespace(p); |
| 86 | } |
| 87 | |
| 88 | /*LINTED*/ |
| 89 | argv = jvmtiAllocate((argc + 1) * (jint)sizeof(char *)); |
| 90 | if (argv == 0) { |
| 91 | jvmtiDeallocate(args); |
| 92 | return SYS_NOMEM; |
| 93 | } |
| 94 | |
| 95 | for (i = 0, p = args; i < argc; i++) { |
| 96 | argv[i] = p; |
| 97 | p = skipNonWhitespace(p); |
| 98 | *p++ = '\0'; |
| 99 | p = skipWhitespace(p); |
| 100 | } |
| 101 | argv[i] = NULL; /* NULL terminate */ |
| 102 | |
| 103 | if ((pid = FORK()) == 0) { |
| 104 | /* Child process */ |
| 105 | int i; |
| 106 | long max_fd; |
| 107 | |
| 108 | /* close everything */ |
| 109 | max_fd = sysconf(_SC_OPEN_MAX); |
| 110 | /*LINTED*/ |
| 111 | for (i = 3; i < (int)max_fd; i++) { |
| 112 | (void)close(i); |
| 113 | } |
| 114 | |
| 115 | (void)execvp(argv[0], argv); |
| 116 | |
| 117 | exit(-1); |
| 118 | } |
| 119 | jvmtiDeallocate(args); |
| 120 | jvmtiDeallocate(argv); |
| 121 | if (pid == pid_err) { |
| 122 | return SYS_ERR; |
| 123 | } else { |
| 124 | return SYS_OK; |
| 125 | } |
| 126 | } |