/* ----------------------------------------------------------------------------
* nmakehlp.c --
*
* This is used to fix limitations within nmake and the environment.
*
* Copyright (c) 2002 by David Gravereaux.
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* ----------------------------------------------------------------------------
* RCS: @(#) $Id: nmakehlp.c,v 1.1 2002/03/28 23:23:03 davygrvy Exp $
* ----------------------------------------------------------------------------
*/
#include <windows.h>
#pragma comment (lib, "user32.lib")
#pragma comment (lib, "kernel32.lib")
/* protos */
int CheckForCompilerFeature (const char *option);
int CheckForLinkerFeature (const char *option);
int IsIn (const char *string, const char *substring);
DWORD WINAPI ReadFromPipe (LPVOID args);
/* globals */
typedef struct {
HANDLE pipe;
char buffer[1000];
} pipeinfo;
pipeinfo Out = {INVALID_HANDLE_VALUE, '\0'};
pipeinfo Err = {INVALID_HANDLE_VALUE, '\0'};
/* exitcodes: 0 == no, 1 == yes, 2 == error */
int
main (int argc, char *argv[])
{
char msg[300];
DWORD dwWritten;
int chars;
if (argc > 1 && *argv[1] == '-') {
switch (*(argv[1]+1)) {
case 'c':
if (argc != 3) {
chars = wsprintf(msg, "usage: %s -c <compiler option>\n"
"Tests for whether cl.exe supports an option\n"
"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars, &dwWritten, NULL);
return 2;
}
return CheckForCompilerFeature(argv[2]);
case 'l':
if (argc != 3) {
chars = wsprintf(msg, "usage: %s -l <linker option>\n"
"Tests for whether link.exe supports an option\n"
"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars, &dwWritten, NULL);
return 2;
}
return CheckForLinkerFeature(argv[2]);
case 'f':
if (argc == 2) {
chars = wsprintf(msg, "usage: %s -f <string> <substring>\n"
"Find a substring within another\n"
"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars, &dwWritten, NULL);
return 2;
} else if (argc == 3) {
/* if the string is blank, there is no match */
return 0;
} else {
return IsIn(argv[2], argv[3]);
}
}
}
chars = wsprintf(msg, "usage: %s -c|-l|-f ...\n"
"This is a little helper app to equalize shell differences between WinNT and\n"
"Win9x and get nmake.exe to accomplish its job.\n",
argv[0]);
WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars, &dwWritten, NULL);
return 2;
}
int
CheckForCompilerFeature (const char *option)
{
STARTUPINFO si;
PROCESS_INFORMATION pi;
SECURITY_ATTRIBUTES sa;
DWORD threadID;
char msg[300];
BOOL ok;
HANDLE hProcess, h, pipeThreads[2];
char cmdline[100];
hProcess = GetCurrentProcess();
ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
ZeroMemory(&si, sizeof(STARTUPINFO));
si.cb = sizeof(STARTUPINFO);
si.dwFlags = STARTF_USESTDHANDLES;
si.hStdInput = INVALID_HANDLE_VALUE;
ZeroMemory(&sa, sizeof(SECURITY_ATTRIBUTES));
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = FALSE;
/* create a non-inheritible pipe. */
CreatePipe(&Out.pipe, &h, &sa, 0);
/* dupe the write side, make it inheritible, and close the original. */
DuplicateHandle(hProcess, h, hProcess, &si.hStdOutput,
0, TRUE, DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
/* Same as above, but for the error side. */
CreatePipe(&Err.pipe, &h, &sa, 0);
DuplicateHandle(hProcess, h, hProcess, &si.hStdError,
0, TRUE, DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
/* base command line */
strcpy(cmdline, "cl.exe -nologo -c -TC -Fdtemp ");
/* append our option for testing */
strcat(cmdline, option);
/* filename to compile, which exists, but is nothing and empty. */
strcat(cmdline, " nul");
ok = CreateProcess(
NULL, /* Module name. */
cmdline, /* Command line. */
NULL, /* Process handle not inheritable. */
NULL, /* Thread handle not inheritable. */
TRUE, /* yes, inherit handles. */
DETACHED_PROCESS, /* No console for you. */
NULL, /* Use parent's environment block. */
NULL, /* Use parent's starting directory. */
&si, /* Pointer to STARTUPINFO structure. */
&pi); /* Pointer to PROCESS_INFORMATION structure. */
if (!ok) {
DWORD err = GetLastError();
int chars = wsprintf(msg, "Tried to launch: \"%s\", but got error [%u]: ", cmdline, err);
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS |
FORMAT_MESSAGE_MAX_WIDTH_MASK, 0L, err, 0, (LPVOID) &msg[chars],
(300-chars), 0);
WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, strlen(msg), &err, NULL);
return 2;
}
/* close our references to the write handles that have now been inherited. */
CloseHandle(si.hStdOutput);
CloseHandle(si.hStdError);
WaitForInputIdle(pi.hProcess, 5000);
CloseHandle(pi.hThread);
/* start the pipe reader threads. */
pipeThreads[0] = CreateThread(NULL, 0, ReadFromPipe, &Out, 0, &threadID);
pipeThreads[1] = CreateThread(NULL, 0, ReadFromPipe, &Err, 0, &threadID);
/* block waiting for the process to end. */
WaitForSingleObject(pi.hProcess, INFINITE);
CloseHandle(pi.hProcess);
/* clean up temporary files before returning */
DeleteFile("temp.idb");
DeleteFile("temp.pdb");
/* wait for our pipe to get done reading, should it be a little slow. */
WaitForMultipleObjects(2, pipeThreads, TRUE, 500);
CloseHandle(pipeThreads[0]);
CloseHandle(pipeThreads[1]);
/* look for the commandline warning code in both streams. */
return !(strstr(Out.buffer, "D4002") != NULL || strstr(Err.buffer, "D4002") != NULL);
}
int
CheckForLinkerFeature (const char *option)
{
STARTUPINFO si;
PROCESS_INFORMATION pi;
SECURITY_ATTRIBUTES sa;
DWORD threadID;
char msg[300];
BOOL ok;
HANDLE hProcess, h, pipeThreads[2];
char cmdline[100];
hProcess = GetCurrentProcess();
ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
ZeroMemory(&si, sizeof(STARTUPINFO));
si.cb = sizeof(STARTUPINFO);
si.dwFlags = STARTF_USESTDHANDLES;
si.hStdInput = INVALID_HANDLE_VALUE;
ZeroMemory(&sa, sizeof(SECURITY_ATTRIBUTES));
sa.nLength = sizeof(SECURITY_ATTRIBUTES);
sa.lpSecurityDescriptor = NULL;
sa.bInheritHandle = TRUE;
/* create a non-inheritible pipe. */
CreatePipe(&Out.pipe, &h, &sa, 0);
/* dupe the write side, make it inheritible, and close the original. */
DuplicateHandle(hProcess, h, hProcess, &si.hStdOutput,
0, TRUE, DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
/* Same as above, but for the error side. */
CreatePipe(&Err.pipe, &h, &sa, 0);
DuplicateHandle(hProcess, h, hProcess, &si.hStdError,
0, TRUE, DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
/* base command line */
strcpy(cmdline, "link.exe -nologo ");
/* append our option for testing */
strcat(cmdline, option);
/* filename to compile, which exists, but is nothing and empty. */
// strcat(cmdline, " nul");
ok = CreateProcess(
NULL, /* Module name. */
cmdline, /* Command line. */
NULL, /* Process handle not inheritable. */
NULL, /* Thread handle not inheritable. */
TRUE, /* yes, inherit handles. */
DETACHED_PROCESS, /* No console for you. */
NULL, /* Use parent's environment block. */
NULL, /* Use parent's starting directory. */
&si, /* Pointer to STARTUPINFO structure. */
&pi); /* Pointer to PROCESS_INFORMATION structure. */
if (!ok) {
DWORD err = GetLastError();
int chars = wsprintf(msg, "Tried to launch: \"%s\", but got error [%u]: ", cmdline, err);
FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS |
FORMAT_MESSAGE_MAX_WIDTH_MASK, 0L, err, 0, (LPVOID) &msg[chars],
(300-chars), 0);
WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, strlen(msg), &err, NULL);
return 2;
}
/* close our references to the write handles that have now been inherited. */
CloseHandle(si.hStdOutput);
CloseHandle(si.hStdError);
WaitForInputIdle(pi.hProcess, 5000);
CloseHandle(pi.hThread);
/* start the pipe reader threads. */
pipeThreads[0] = CreateThread(NULL, 0, ReadFromPipe, &Out, 0, &threadID);
pipeThreads[1] = CreateThread(NULL, 0, ReadFromPipe, &Err, 0, &threadID);
/* block waiting for the process to end. */
WaitForSingleObject(pi.hProcess, INFINITE);
CloseHandle(pi.hProcess);
/* wait for our pipe to get done reading, should it be a little slow. */
WaitForMultipleObjects(2, pipeThreads, TRUE, 500);
CloseHandle(pipeThreads[0]);
CloseHandle(pipeThreads[1]);
/* look for the commandline warning code in the stderr stream. */
return !(strstr(Out.buffer, "LNK1117") != NULL || strstr(Err.buffer, "LNK1117") != NULL);
}
DWORD WINAPI
ReadFromPipe (LPVOID args)
{
pipeinfo *pi = (pipeinfo *) args;
char *lastBuf = pi->buffer;
DWORD dwRead;
BOOL ok;
again:
ok = ReadFile(pi->pipe, lastBuf, 25, &dwRead, 0L);
if (!ok || dwRead == 0) {
CloseHandle(pi->pipe);
return 0;
}
lastBuf += dwRead;
goto again;
return 0; /* makes the compiler happy */
}
int
IsIn (const char *string, const char *substring)
{
return (strstr(string, substring) != NULL);
}