1 /**
2 * Copyright (C) 2001-2002 Artifex Software, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person
5 * obtaining a copy of this software and associated documentation
6 * files (the "Software"), to deal in the Software without
7 * restriction, including without limitation the rights to use, copy,
8 * modify, merge, publish, distribute, sublicense, and/or sell copies
9 * of the Software, and to permit persons to whom the Software is
10 * furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be
13 * included in all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 **/
24
25 #define STRICT
26 #include <windows.h>
27 #include <io.h>
28 #include <process.h>
29 #include <fcntl.h>
30 #include "ijs.h"
31 #include "ijs_client.h"
32
33 /* Start child program with redirected standard input and output */
34 int
ijs_exec_server(const char * server_cmd,int * pfd_to,int * pfd_from,int * pchild_pid)35 ijs_exec_server(const char *server_cmd, int *pfd_to, int *pfd_from,
36 int *pchild_pid)
37 {
38 SECURITY_ATTRIBUTES saAttr;
39 STARTUPINFO siStartInfo;
40 LPVOID env;
41 HANDLE hPipeTemp;
42 HANDLE hChildStdinRd = INVALID_HANDLE_VALUE;
43 HANDLE hChildStdinWr = INVALID_HANDLE_VALUE;
44 HANDLE hChildStdoutRd = INVALID_HANDLE_VALUE;
45 HANDLE hChildStdoutWr = INVALID_HANDLE_VALUE;
46 PROCESS_INFORMATION piProcInfo;
47 BOOL flag;
48 int fd_stdin_wr = -1;
49 int fd_stdout_rd = -1;
50
51 /* Set the bInheritHandle flag so pipe handles are inherited. */
52 saAttr.nLength = sizeof(SECURITY_ATTRIBUTES);
53 saAttr.bInheritHandle = TRUE;
54 saAttr.lpSecurityDescriptor = NULL;
55
56 /* Create anonymous inheritable pipes for STDIN and STDOUT
57 * for child. For each pipe, create a noninheritable duplicate handle
58 * of our end of the pipe, then close the inheritable handle.
59 * Do not redirect STDERR.
60 */
61 flag = CreatePipe(&hChildStdinRd, &hPipeTemp, &saAttr, 0);
62 if (flag) {
63 flag = DuplicateHandle(GetCurrentProcess(), hPipeTemp,
64 GetCurrentProcess(), &hChildStdinWr, 0,
65 FALSE, /* not inherited */
66 DUPLICATE_SAME_ACCESS);
67 CloseHandle(hPipeTemp);
68 }
69 if (flag)
70 flag = CreatePipe(&hPipeTemp, &hChildStdoutWr, &saAttr, 0);
71 if (flag) {
72 flag = DuplicateHandle(GetCurrentProcess(), hPipeTemp,
73 GetCurrentProcess(), &hChildStdoutRd, 0,
74 FALSE, /* not inherited */
75 DUPLICATE_SAME_ACCESS);
76 CloseHandle(hPipeTemp);
77 }
78 if (flag)
79 flag = (fd_stdin_wr = _open_osfhandle((LONG)hChildStdinWr, _O_BINARY)) != -1;
80 if (flag)
81 flag = (fd_stdout_rd = _open_osfhandle((LONG)hChildStdoutRd, _O_BINARY)) != -1;
82
83 /* Now create the child process. */
84 if (flag) {
85 /* Set up members of STARTUPINFO structure. */
86 siStartInfo.cb = sizeof(STARTUPINFO);
87 siStartInfo.lpReserved = NULL;
88 siStartInfo.lpDesktop = NULL;
89 siStartInfo.lpTitle = NULL; /* use executable name as title */
90 siStartInfo.dwX = siStartInfo.dwY = CW_USEDEFAULT; /* ignored */
91 siStartInfo.dwXSize = siStartInfo.dwYSize = CW_USEDEFAULT;/* ignored */
92 siStartInfo.dwXCountChars = 80;
93 siStartInfo.dwYCountChars = 25;
94 siStartInfo.dwFillAttribute = 0; /* ignored */
95 siStartInfo.dwFlags = STARTF_USESTDHANDLES;
96 #ifdef VERBOSE
97 siStartInfo.wShowWindow = SW_SHOWNORMAL;
98 siStartInfo.dwFlags |= STARTF_USESHOWWINDOW;
99 #else
100 siStartInfo.wShowWindow = SW_HIDE;
101 #endif
102 siStartInfo.cbReserved2 = 0;
103 siStartInfo.lpReserved2 = NULL;
104 siStartInfo.hStdInput = hChildStdinRd;
105 siStartInfo.hStdOutput = hChildStdoutWr;
106 siStartInfo.hStdError = GetStdHandle(STD_ERROR_HANDLE);
107
108 env = NULL;
109
110 /* Create the child process. */
111
112 flag = CreateProcess(server_cmd,
113 NULL, /* command line */
114 NULL, /* process security attributes */
115 NULL, /* primary thread security attributes */
116 TRUE, /* handles are inherited */
117 0, /* creation flags */
118 env, /* environment */
119 NULL, /* use parent's current directory */
120 &siStartInfo, /* STARTUPINFO pointer */
121 &piProcInfo); /* receives PROCESS_INFORMATION */
122 if (flag) {
123 CloseHandle(piProcInfo.hProcess);
124 CloseHandle(piProcInfo.hThread);
125 }
126 }
127
128 if (hChildStdinRd != INVALID_HANDLE_VALUE)
129 CloseHandle(hChildStdinRd);
130 if (hChildStdoutWr != INVALID_HANDLE_VALUE)
131 CloseHandle(hChildStdoutWr);
132
133 if (flag) {
134 *pfd_to = fd_stdin_wr;
135 *pfd_from = fd_stdout_rd;
136 *pchild_pid = (int)piProcInfo.dwProcessId;
137 }
138 else {
139 if (fd_stdin_wr != -1)
140 close(fd_stdin_wr);
141 else if (hChildStdinWr != INVALID_HANDLE_VALUE)
142 CloseHandle(hChildStdinWr);
143 if (fd_stdout_rd != -1)
144 close(fd_stdout_rd);
145 else if (hChildStdoutRd != INVALID_HANDLE_VALUE)
146 CloseHandle(hChildStdoutRd);
147 return -1;
148 }
149 return flag ? 0 : -1;
150 }
151