816 lines
21 KiB
C
816 lines
21 KiB
C
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/*
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* ----------------------------------------------------------------------------
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* nmakehlp.c --
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*
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* This is used to fix limitations within nmake and the environment.
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*
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* Copyright (c) 2002 by David Gravereaux.
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* Copyright (c) 2006 by Pat Thoyts
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*
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* See the file "license.terms" for information on usage and redistribution of
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* this file, and for a DISCLAIMER OF ALL WARRANTIES.
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* ----------------------------------------------------------------------------
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*/
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#define _CRT_SECURE_NO_DEPRECATE
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#include <windows.h>
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#pragma comment (lib, "user32.lib")
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#pragma comment (lib, "kernel32.lib")
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#include <stdio.h>
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#include <math.h>
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/*
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* This library is required for x64 builds with _some_ versions of MSVC
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*/
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#if defined(_M_IA64) || defined(_M_AMD64)
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#if _MSC_VER >= 1400 && _MSC_VER < 1500
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#pragma comment(lib, "bufferoverflowU")
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#endif
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#endif
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/* ISO hack for dumb VC++ */
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#ifdef _MSC_VER
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#define snprintf _snprintf
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#endif
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/* protos */
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static int CheckForCompilerFeature(const char *option);
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static int CheckForLinkerFeature(const char **options, int count);
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static int IsIn(const char *string, const char *substring);
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static int SubstituteFile(const char *substs, const char *filename);
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static int QualifyPath(const char *path);
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static int LocateDependency(const char *keyfile);
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static const char *GetVersionFromFile(const char *filename, const char *match, int numdots);
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static DWORD WINAPI ReadFromPipe(LPVOID args);
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/* globals */
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#define CHUNK 25
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#define STATICBUFFERSIZE 1000
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typedef struct {
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HANDLE pipe;
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char buffer[STATICBUFFERSIZE];
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} pipeinfo;
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pipeinfo Out = {INVALID_HANDLE_VALUE, '\0'};
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pipeinfo Err = {INVALID_HANDLE_VALUE, '\0'};
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/*
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* exitcodes: 0 == no, 1 == yes, 2 == error
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*/
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int
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main(
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int argc,
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char *argv[])
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{
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char msg[300];
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DWORD dwWritten;
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int chars;
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const char *s;
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/*
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* Make sure children (cl.exe and link.exe) are kept quiet.
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*/
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SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX);
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/*
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* Make sure the compiler and linker aren't effected by the outside world.
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*/
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SetEnvironmentVariable("CL", "");
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SetEnvironmentVariable("LINK", "");
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if (argc > 1 && *argv[1] == '-') {
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switch (*(argv[1]+1)) {
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case 'c':
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if (argc != 3) {
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chars = snprintf(msg, sizeof(msg) - 1,
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"usage: %s -c <compiler option>\n"
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"Tests for whether cl.exe supports an option\n"
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"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
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WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
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&dwWritten, NULL);
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return 2;
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}
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return CheckForCompilerFeature(argv[2]);
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case 'l':
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if (argc < 3) {
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chars = snprintf(msg, sizeof(msg) - 1,
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"usage: %s -l <linker option> ?<mandatory option> ...?\n"
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"Tests for whether link.exe supports an option\n"
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"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
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WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
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&dwWritten, NULL);
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return 2;
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}
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return CheckForLinkerFeature(&argv[2], argc-2);
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case 'f':
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if (argc == 2) {
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chars = snprintf(msg, sizeof(msg) - 1,
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"usage: %s -f <string> <substring>\n"
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"Find a substring within another\n"
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"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
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WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
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&dwWritten, NULL);
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return 2;
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} else if (argc == 3) {
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/*
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* If the string is blank, there is no match.
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*/
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return 0;
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} else {
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return IsIn(argv[2], argv[3]);
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}
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case 's':
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if (argc == 2) {
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chars = snprintf(msg, sizeof(msg) - 1,
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"usage: %s -s <substitutions file> <file>\n"
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"Perform a set of string map type substutitions on a file\n"
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"exitcodes: 0\n",
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argv[0]);
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WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
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&dwWritten, NULL);
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return 2;
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}
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return SubstituteFile(argv[2], argv[3]);
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case 'V':
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if (argc != 4) {
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chars = snprintf(msg, sizeof(msg) - 1,
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"usage: %s -V filename matchstring\n"
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"Extract a version from a file:\n"
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"eg: pkgIndex.tcl \"package ifneeded http\"",
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argv[0]);
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WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
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&dwWritten, NULL);
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return 0;
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}
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s = GetVersionFromFile(argv[2], argv[3], *(argv[1]+2) - '0');
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if (s && *s) {
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printf("%s\n", s);
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return 0;
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} else
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return 1; /* Version not found. Return non-0 exit code */
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case 'Q':
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if (argc != 3) {
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chars = snprintf(msg, sizeof(msg) - 1,
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"usage: %s -Q path\n"
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"Emit the fully qualified path\n"
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"exitcodes: 0 == no, 1 == yes, 2 == error\n", argv[0]);
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WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
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&dwWritten, NULL);
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return 2;
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}
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return QualifyPath(argv[2]);
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case 'L':
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if (argc != 3) {
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chars = snprintf(msg, sizeof(msg) - 1,
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"usage: %s -L keypath\n"
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"Emit the fully qualified path of directory containing keypath\n"
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"exitcodes: 0 == success, 1 == not found, 2 == error\n", argv[0]);
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WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars,
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&dwWritten, NULL);
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return 2;
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}
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return LocateDependency(argv[2]);
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}
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}
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chars = snprintf(msg, sizeof(msg) - 1,
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"usage: %s -c|-f|-l|-Q|-s|-V ...\n"
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"This is a little helper app to equalize shell differences between WinNT and\n"
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"Win9x and get nmake.exe to accomplish its job.\n",
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argv[0]);
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WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, chars, &dwWritten, NULL);
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return 2;
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}
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static int
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CheckForCompilerFeature(
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const char *option)
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{
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STARTUPINFO si;
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PROCESS_INFORMATION pi;
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SECURITY_ATTRIBUTES sa;
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DWORD threadID;
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char msg[300];
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BOOL ok;
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HANDLE hProcess, h, pipeThreads[2];
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char cmdline[100];
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hProcess = GetCurrentProcess();
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ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
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ZeroMemory(&si, sizeof(STARTUPINFO));
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si.cb = sizeof(STARTUPINFO);
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si.dwFlags = STARTF_USESTDHANDLES;
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si.hStdInput = INVALID_HANDLE_VALUE;
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ZeroMemory(&sa, sizeof(SECURITY_ATTRIBUTES));
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sa.nLength = sizeof(SECURITY_ATTRIBUTES);
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sa.lpSecurityDescriptor = NULL;
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sa.bInheritHandle = FALSE;
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/*
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* Create a non-inheritible pipe.
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*/
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CreatePipe(&Out.pipe, &h, &sa, 0);
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/*
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* Dupe the write side, make it inheritible, and close the original.
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*/
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DuplicateHandle(hProcess, h, hProcess, &si.hStdOutput, 0, TRUE,
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DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
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/*
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* Same as above, but for the error side.
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*/
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CreatePipe(&Err.pipe, &h, &sa, 0);
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DuplicateHandle(hProcess, h, hProcess, &si.hStdError, 0, TRUE,
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DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
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/*
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* Base command line.
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*/
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lstrcpy(cmdline, "cl.exe -nologo -c -TC -Zs -X -Fp.\\_junk.pch ");
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/*
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* Append our option for testing
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*/
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lstrcat(cmdline, option);
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/*
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* Filename to compile, which exists, but is nothing and empty.
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*/
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lstrcat(cmdline, " .\\nul");
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ok = CreateProcess(
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NULL, /* Module name. */
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cmdline, /* Command line. */
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NULL, /* Process handle not inheritable. */
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NULL, /* Thread handle not inheritable. */
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TRUE, /* yes, inherit handles. */
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DETACHED_PROCESS, /* No console for you. */
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NULL, /* Use parent's environment block. */
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NULL, /* Use parent's starting directory. */
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&si, /* Pointer to STARTUPINFO structure. */
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&pi); /* Pointer to PROCESS_INFORMATION structure. */
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if (!ok) {
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DWORD err = GetLastError();
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int chars = snprintf(msg, sizeof(msg) - 1,
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"Tried to launch: \"%s\", but got error [%u]: ", cmdline, err);
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FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS|
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FORMAT_MESSAGE_MAX_WIDTH_MASK, 0L, err, 0, (LPVOID)&msg[chars],
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(300-chars), 0);
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WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, lstrlen(msg), &err,NULL);
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return 2;
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}
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/*
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* Close our references to the write handles that have now been inherited.
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*/
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CloseHandle(si.hStdOutput);
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CloseHandle(si.hStdError);
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WaitForInputIdle(pi.hProcess, 5000);
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CloseHandle(pi.hThread);
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/*
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* Start the pipe reader threads.
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*/
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pipeThreads[0] = CreateThread(NULL, 0, ReadFromPipe, &Out, 0, &threadID);
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pipeThreads[1] = CreateThread(NULL, 0, ReadFromPipe, &Err, 0, &threadID);
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/*
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* Block waiting for the process to end.
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*/
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WaitForSingleObject(pi.hProcess, INFINITE);
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CloseHandle(pi.hProcess);
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/*
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* Wait for our pipe to get done reading, should it be a little slow.
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*/
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WaitForMultipleObjects(2, pipeThreads, TRUE, 500);
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CloseHandle(pipeThreads[0]);
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CloseHandle(pipeThreads[1]);
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/*
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* Look for the commandline warning code in both streams.
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* - in MSVC 6 & 7 we get D4002, in MSVC 8 we get D9002.
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*/
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return !(strstr(Out.buffer, "D4002") != NULL
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|| strstr(Err.buffer, "D4002") != NULL
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|| strstr(Out.buffer, "D9002") != NULL
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|| strstr(Err.buffer, "D9002") != NULL
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|| strstr(Out.buffer, "D2021") != NULL
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|| strstr(Err.buffer, "D2021") != NULL);
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}
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static int
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CheckForLinkerFeature(
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const char **options,
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int count)
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{
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STARTUPINFO si;
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PROCESS_INFORMATION pi;
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SECURITY_ATTRIBUTES sa;
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DWORD threadID;
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char msg[300];
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BOOL ok;
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HANDLE hProcess, h, pipeThreads[2];
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int i;
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char cmdline[255];
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hProcess = GetCurrentProcess();
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ZeroMemory(&pi, sizeof(PROCESS_INFORMATION));
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ZeroMemory(&si, sizeof(STARTUPINFO));
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si.cb = sizeof(STARTUPINFO);
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si.dwFlags = STARTF_USESTDHANDLES;
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si.hStdInput = INVALID_HANDLE_VALUE;
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ZeroMemory(&sa, sizeof(SECURITY_ATTRIBUTES));
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sa.nLength = sizeof(SECURITY_ATTRIBUTES);
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sa.lpSecurityDescriptor = NULL;
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sa.bInheritHandle = TRUE;
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/*
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* Create a non-inheritible pipe.
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*/
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CreatePipe(&Out.pipe, &h, &sa, 0);
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/*
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* Dupe the write side, make it inheritible, and close the original.
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*/
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DuplicateHandle(hProcess, h, hProcess, &si.hStdOutput, 0, TRUE,
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DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
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/*
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* Same as above, but for the error side.
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*/
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CreatePipe(&Err.pipe, &h, &sa, 0);
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DuplicateHandle(hProcess, h, hProcess, &si.hStdError, 0, TRUE,
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DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
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/*
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* Base command line.
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*/
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lstrcpy(cmdline, "link.exe -nologo ");
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/*
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* Append our option for testing.
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*/
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for (i = 0; i < count; i++) {
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lstrcat(cmdline, " \"");
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lstrcat(cmdline, options[i]);
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lstrcat(cmdline, "\"");
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}
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ok = CreateProcess(
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NULL, /* Module name. */
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cmdline, /* Command line. */
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NULL, /* Process handle not inheritable. */
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NULL, /* Thread handle not inheritable. */
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TRUE, /* yes, inherit handles. */
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DETACHED_PROCESS, /* No console for you. */
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NULL, /* Use parent's environment block. */
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NULL, /* Use parent's starting directory. */
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&si, /* Pointer to STARTUPINFO structure. */
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&pi); /* Pointer to PROCESS_INFORMATION structure. */
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if (!ok) {
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DWORD err = GetLastError();
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int chars = snprintf(msg, sizeof(msg) - 1,
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"Tried to launch: \"%s\", but got error [%u]: ", cmdline, err);
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FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM|FORMAT_MESSAGE_IGNORE_INSERTS|
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FORMAT_MESSAGE_MAX_WIDTH_MASK, 0L, err, 0, (LPVOID)&msg[chars],
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(300-chars), 0);
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WriteFile(GetStdHandle(STD_ERROR_HANDLE), msg, lstrlen(msg), &err,NULL);
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return 2;
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}
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/*
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* Close our references to the write handles that have now been inherited.
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*/
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CloseHandle(si.hStdOutput);
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|
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 ||
|
|||
|
strstr(Out.buffer, "LNK4044") != NULL ||
|
|||
|
strstr(Err.buffer, "LNK4044") != NULL ||
|
|||
|
strstr(Out.buffer, "LNK4224") != NULL ||
|
|||
|
strstr(Err.buffer, "LNK4224") != NULL);
|
|||
|
}
|
|||
|
|
|||
|
static DWORD WINAPI
|
|||
|
ReadFromPipe(
|
|||
|
LPVOID args)
|
|||
|
{
|
|||
|
pipeinfo *pi = (pipeinfo *) args;
|
|||
|
char *lastBuf = pi->buffer;
|
|||
|
DWORD dwRead;
|
|||
|
BOOL ok;
|
|||
|
|
|||
|
again:
|
|||
|
if (lastBuf - pi->buffer + CHUNK > STATICBUFFERSIZE) {
|
|||
|
CloseHandle(pi->pipe);
|
|||
|
return (DWORD)-1;
|
|||
|
}
|
|||
|
ok = ReadFile(pi->pipe, lastBuf, CHUNK, &dwRead, 0L);
|
|||
|
if (!ok || dwRead == 0) {
|
|||
|
CloseHandle(pi->pipe);
|
|||
|
return 0;
|
|||
|
}
|
|||
|
lastBuf += dwRead;
|
|||
|
goto again;
|
|||
|
|
|||
|
return 0; /* makes the compiler happy */
|
|||
|
}
|
|||
|
|
|||
|
static int
|
|||
|
IsIn(
|
|||
|
const char *string,
|
|||
|
const char *substring)
|
|||
|
{
|
|||
|
return (strstr(string, substring) != NULL);
|
|||
|
}
|
|||
|
|
|||
|
/*
|
|||
|
* GetVersionFromFile --
|
|||
|
* Looks for a match string in a file and then returns the version
|
|||
|
* following the match where a version is anything acceptable to
|
|||
|
* package provide or package ifneeded.
|
|||
|
*/
|
|||
|
|
|||
|
static const char *
|
|||
|
GetVersionFromFile(
|
|||
|
const char *filename,
|
|||
|
const char *match,
|
|||
|
int numdots)
|
|||
|
{
|
|||
|
size_t cbBuffer = 100;
|
|||
|
static char szBuffer[100];
|
|||
|
char *szResult = NULL;
|
|||
|
FILE *fp = fopen(filename, "rt");
|
|||
|
|
|||
|
if (fp != NULL) {
|
|||
|
/*
|
|||
|
* Read data until we see our match string.
|
|||
|
*/
|
|||
|
|
|||
|
while (fgets(szBuffer, cbBuffer, fp) != NULL) {
|
|||
|
LPSTR p, q;
|
|||
|
|
|||
|
p = strstr(szBuffer, match);
|
|||
|
if (p != NULL) {
|
|||
|
/*
|
|||
|
* Skip to first digit after the match.
|
|||
|
*/
|
|||
|
|
|||
|
p += strlen(match);
|
|||
|
while (*p && !isdigit(*p)) {
|
|||
|
++p;
|
|||
|
}
|
|||
|
|
|||
|
/*
|
|||
|
* Find ending whitespace.
|
|||
|
*/
|
|||
|
|
|||
|
q = p;
|
|||
|
while (*q && (strchr("0123456789.ab", *q)) && ((!strchr(".ab", *q)
|
|||
|
&& (!strchr("ab", q[-1])) || --numdots))) {
|
|||
|
++q;
|
|||
|
}
|
|||
|
|
|||
|
memcpy(szBuffer, p, q - p);
|
|||
|
szBuffer[q-p] = 0;
|
|||
|
szResult = szBuffer;
|
|||
|
break;
|
|||
|
}
|
|||
|
}
|
|||
|
fclose(fp);
|
|||
|
}
|
|||
|
return szResult;
|
|||
|
}
|
|||
|
|
|||
|
/*
|
|||
|
* List helpers for the SubstituteFile function
|
|||
|
*/
|
|||
|
|
|||
|
typedef struct list_item_t {
|
|||
|
struct list_item_t *nextPtr;
|
|||
|
char * key;
|
|||
|
char * value;
|
|||
|
} list_item_t;
|
|||
|
|
|||
|
/* insert a list item into the list (list may be null) */
|
|||
|
static list_item_t *
|
|||
|
list_insert(list_item_t **listPtrPtr, const char *key, const char *value)
|
|||
|
{
|
|||
|
list_item_t *itemPtr = malloc(sizeof(list_item_t));
|
|||
|
if (itemPtr) {
|
|||
|
itemPtr->key = strdup(key);
|
|||
|
itemPtr->value = strdup(value);
|
|||
|
itemPtr->nextPtr = NULL;
|
|||
|
|
|||
|
while(*listPtrPtr) {
|
|||
|
listPtrPtr = &(*listPtrPtr)->nextPtr;
|
|||
|
}
|
|||
|
*listPtrPtr = itemPtr;
|
|||
|
}
|
|||
|
return itemPtr;
|
|||
|
}
|
|||
|
|
|||
|
static void
|
|||
|
list_free(list_item_t **listPtrPtr)
|
|||
|
{
|
|||
|
list_item_t *tmpPtr, *listPtr = *listPtrPtr;
|
|||
|
while (listPtr) {
|
|||
|
tmpPtr = listPtr;
|
|||
|
listPtr = listPtr->nextPtr;
|
|||
|
free(tmpPtr->key);
|
|||
|
free(tmpPtr->value);
|
|||
|
free(tmpPtr);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
/*
|
|||
|
* SubstituteFile --
|
|||
|
* As windows doesn't provide anything useful like sed and it's unreliable
|
|||
|
* to use the tclsh you are building against (consider x-platform builds -
|
|||
|
* eg compiling AMD64 target from IX86) we provide a simple substitution
|
|||
|
* option here to handle autoconf style substitutions.
|
|||
|
* The substitution file is whitespace and line delimited. The file should
|
|||
|
* consist of lines matching the regular expression:
|
|||
|
* \s*\S+\s+\S*$
|
|||
|
*
|
|||
|
* Usage is something like:
|
|||
|
* nmakehlp -S << $** > $@
|
|||
|
* @PACKAGE_NAME@ $(PACKAGE_NAME)
|
|||
|
* @PACKAGE_VERSION@ $(PACKAGE_VERSION)
|
|||
|
* <<
|
|||
|
*/
|
|||
|
|
|||
|
static int
|
|||
|
SubstituteFile(
|
|||
|
const char *substitutions,
|
|||
|
const char *filename)
|
|||
|
{
|
|||
|
size_t cbBuffer = 1024;
|
|||
|
static char szBuffer[1024], szCopy[1024];
|
|||
|
char *szResult = NULL;
|
|||
|
list_item_t *substPtr = NULL;
|
|||
|
FILE *fp, *sp;
|
|||
|
|
|||
|
fp = fopen(filename, "rt");
|
|||
|
if (fp != NULL) {
|
|||
|
|
|||
|
/*
|
|||
|
* Build a list of substutitions from the first filename
|
|||
|
*/
|
|||
|
|
|||
|
sp = fopen(substitutions, "rt");
|
|||
|
if (sp != NULL) {
|
|||
|
while (fgets(szBuffer, cbBuffer, sp) != NULL) {
|
|||
|
unsigned char *ks, *ke, *vs, *ve;
|
|||
|
ks = (unsigned char*)szBuffer;
|
|||
|
while (ks && *ks && isspace(*ks)) ++ks;
|
|||
|
ke = ks;
|
|||
|
while (ke && *ke && !isspace(*ke)) ++ke;
|
|||
|
vs = ke;
|
|||
|
while (vs && *vs && isspace(*vs)) ++vs;
|
|||
|
ve = vs;
|
|||
|
while (ve && *ve && !(*ve == '\r' || *ve == '\n')) ++ve;
|
|||
|
*ke = 0, *ve = 0;
|
|||
|
list_insert(&substPtr, (char*)ks, (char*)vs);
|
|||
|
}
|
|||
|
fclose(sp);
|
|||
|
}
|
|||
|
|
|||
|
/* debug: dump the list */
|
|||
|
#ifndef NDEBUG
|
|||
|
{
|
|||
|
int n = 0;
|
|||
|
list_item_t *p = NULL;
|
|||
|
for (p = substPtr; p != NULL; p = p->nextPtr, ++n) {
|
|||
|
fprintf(stderr, "% 3d '%s' => '%s'\n", n, p->key, p->value);
|
|||
|
}
|
|||
|
}
|
|||
|
#endif
|
|||
|
|
|||
|
/*
|
|||
|
* Run the substitutions over each line of the input
|
|||
|
*/
|
|||
|
|
|||
|
while (fgets(szBuffer, cbBuffer, fp) != NULL) {
|
|||
|
list_item_t *p = NULL;
|
|||
|
for (p = substPtr; p != NULL; p = p->nextPtr) {
|
|||
|
char *m = strstr(szBuffer, p->key);
|
|||
|
if (m) {
|
|||
|
char *cp, *op, *sp;
|
|||
|
cp = szCopy;
|
|||
|
op = szBuffer;
|
|||
|
while (op != m) *cp++ = *op++;
|
|||
|
sp = p->value;
|
|||
|
while (sp && *sp) *cp++ = *sp++;
|
|||
|
op += strlen(p->key);
|
|||
|
while (*op) *cp++ = *op++;
|
|||
|
*cp = 0;
|
|||
|
memcpy(szBuffer, szCopy, sizeof(szCopy));
|
|||
|
}
|
|||
|
}
|
|||
|
printf(szBuffer);
|
|||
|
}
|
|||
|
|
|||
|
list_free(&substPtr);
|
|||
|
}
|
|||
|
fclose(fp);
|
|||
|
return 0;
|
|||
|
}
|
|||
|
|
|||
|
BOOL FileExists(LPCTSTR szPath)
|
|||
|
{
|
|||
|
#ifndef INVALID_FILE_ATTRIBUTES
|
|||
|
#define INVALID_FILE_ATTRIBUTES ((DWORD)-1)
|
|||
|
#endif
|
|||
|
DWORD pathAttr = GetFileAttributes(szPath);
|
|||
|
return (pathAttr != INVALID_FILE_ATTRIBUTES &&
|
|||
|
!(pathAttr & FILE_ATTRIBUTE_DIRECTORY));
|
|||
|
}
|
|||
|
|
|||
|
|
|||
|
/*
|
|||
|
* QualifyPath --
|
|||
|
*
|
|||
|
* This composes the current working directory with a provided path
|
|||
|
* and returns the fully qualified and normalized path.
|
|||
|
* Mostly needed to setup paths for testing.
|
|||
|
*/
|
|||
|
|
|||
|
static int
|
|||
|
QualifyPath(
|
|||
|
const char *szPath)
|
|||
|
{
|
|||
|
char szCwd[MAX_PATH + 1];
|
|||
|
|
|||
|
GetFullPathName(szPath, sizeof(szCwd)-1, szCwd, NULL);
|
|||
|
printf("%s\n", szCwd);
|
|||
|
return 0;
|
|||
|
}
|
|||
|
|
|||
|
/*
|
|||
|
* Implements LocateDependency for a single directory. See that command
|
|||
|
* for an explanation.
|
|||
|
* Returns 0 if found after printing the directory.
|
|||
|
* Returns 1 if not found but no errors.
|
|||
|
* Returns 2 on any kind of error
|
|||
|
* Basically, these are used as exit codes for the process.
|
|||
|
*/
|
|||
|
static int LocateDependencyHelper(const char *dir, const char *keypath)
|
|||
|
{
|
|||
|
HANDLE hSearch;
|
|||
|
char path[MAX_PATH+1];
|
|||
|
int dirlen, keylen, ret;
|
|||
|
WIN32_FIND_DATA finfo;
|
|||
|
|
|||
|
if (dir == NULL || keypath == NULL)
|
|||
|
return 2; /* Have no real error reporting mechanism into nmake */
|
|||
|
dirlen = strlen(dir);
|
|||
|
if ((dirlen + 3) > sizeof(path))
|
|||
|
return 2;
|
|||
|
strncpy(path, dir, dirlen);
|
|||
|
strncpy(path+dirlen, "\\*", 3); /* Including terminating \0 */
|
|||
|
keylen = strlen(keypath);
|
|||
|
|
|||
|
#if 0 /* This function is not available in Visual C++ 6 */
|
|||
|
/*
|
|||
|
* Use numerics 0 -> FindExInfoStandard,
|
|||
|
* 1 -> FindExSearchLimitToDirectories,
|
|||
|
* as these are not defined in Visual C++ 6
|
|||
|
*/
|
|||
|
hSearch = FindFirstFileEx(path, 0, &finfo, 1, NULL, 0);
|
|||
|
#else
|
|||
|
hSearch = FindFirstFile(path, &finfo);
|
|||
|
#endif
|
|||
|
if (hSearch == INVALID_HANDLE_VALUE)
|
|||
|
return 1; /* Not found */
|
|||
|
|
|||
|
/* Loop through all subdirs checking if the keypath is under there */
|
|||
|
ret = 1; /* Assume not found */
|
|||
|
do {
|
|||
|
int sublen;
|
|||
|
/*
|
|||
|
* We need to check it is a directory despite the
|
|||
|
* FindExSearchLimitToDirectories in the above call. See SDK docs
|
|||
|
*/
|
|||
|
if ((finfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) == 0)
|
|||
|
continue;
|
|||
|
sublen = strlen(finfo.cFileName);
|
|||
|
if ((dirlen+1+sublen+1+keylen+1) > sizeof(path))
|
|||
|
continue; /* Path does not fit, assume not matched */
|
|||
|
strncpy(path+dirlen+1, finfo.cFileName, sublen);
|
|||
|
path[dirlen+1+sublen] = '\\';
|
|||
|
strncpy(path+dirlen+1+sublen+1, keypath, keylen+1);
|
|||
|
if (FileExists(path)) {
|
|||
|
/* Found a match, print to stdout */
|
|||
|
path[dirlen+1+sublen] = '\0';
|
|||
|
QualifyPath(path);
|
|||
|
ret = 0;
|
|||
|
break;
|
|||
|
}
|
|||
|
} while (FindNextFile(hSearch, &finfo));
|
|||
|
FindClose(hSearch);
|
|||
|
return ret;
|
|||
|
}
|
|||
|
|
|||
|
/*
|
|||
|
* LocateDependency --
|
|||
|
*
|
|||
|
* Locates a dependency for a package.
|
|||
|
* keypath - a relative path within the package directory
|
|||
|
* that is used to confirm it is the correct directory.
|
|||
|
* The search path for the package directory is currently only
|
|||
|
* the parent and grandparent of the current working directory.
|
|||
|
* If found, the command prints
|
|||
|
* name_DIRPATH=<full path of located directory>
|
|||
|
* and returns 0. If not found, does not print anything and returns 1.
|
|||
|
*/
|
|||
|
static int LocateDependency(const char *keypath)
|
|||
|
{
|
|||
|
int i, ret;
|
|||
|
static const char *paths[] = {"..", "..\\..", "..\\..\\.."};
|
|||
|
|
|||
|
for (i = 0; i < (sizeof(paths)/sizeof(paths[0])); ++i) {
|
|||
|
ret = LocateDependencyHelper(paths[i], keypath);
|
|||
|
if (ret == 0)
|
|||
|
return ret;
|
|||
|
}
|
|||
|
return ret;
|
|||
|
}
|
|||
|
|
|||
|
|
|||
|
/*
|
|||
|
* Local variables:
|
|||
|
* mode: c
|
|||
|
* c-basic-offset: 4
|
|||
|
* fill-column: 78
|
|||
|
* indent-tabs-mode: t
|
|||
|
* tab-width: 8
|
|||
|
* End:
|
|||
|
*/
|