0197ba465f
Changes at https://www.sqlite.org/releaselog/3_37_1.html. Merge commit '7e13a4eb402641ddf307497cc9ac7ce1ab21c2a8' into sqlite3-work2
816 lines
21 KiB
C
816 lines
21 KiB
C
/*
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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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#ifdef _MSC_VER
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#pragma comment (lib, "user32.lib")
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#pragma comment (lib, "kernel32.lib")
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#endif
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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(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, ""};
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pipeinfo Err = {INVALID_HANDLE_VALUE, ""};
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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, (LPSTR)&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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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, (LPSTR)&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 the stderr stream.
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*/
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return !(strstr(Out.buffer, "LNK1117") != NULL ||
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strstr(Err.buffer, "LNK1117") != NULL ||
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strstr(Out.buffer, "LNK4044") != NULL ||
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strstr(Err.buffer, "LNK4044") != NULL ||
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strstr(Out.buffer, "LNK4224") != NULL ||
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strstr(Err.buffer, "LNK4224") != NULL);
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}
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static DWORD WINAPI
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ReadFromPipe(
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LPVOID args)
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{
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pipeinfo *pi = (pipeinfo *) args;
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char *lastBuf = pi->buffer;
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DWORD dwRead;
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BOOL ok;
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again:
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if (lastBuf - pi->buffer + CHUNK > STATICBUFFERSIZE) {
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CloseHandle(pi->pipe);
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return (DWORD)-1;
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}
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ok = ReadFile(pi->pipe, lastBuf, CHUNK, &dwRead, 0L);
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if (!ok || dwRead == 0) {
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CloseHandle(pi->pipe);
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return 0;
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}
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lastBuf += dwRead;
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goto again;
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return 0; /* makes the compiler happy */
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}
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static int
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IsIn(
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const char *string,
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const char *substring)
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{
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return (strstr(string, substring) != NULL);
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}
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/*
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* GetVersionFromFile --
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* Looks for a match string in a file and then returns the version
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* following the match where a version is anything acceptable to
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* package provide or package ifneeded.
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*/
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static const char *
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GetVersionFromFile(
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const char *filename,
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const char *match,
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int numdots)
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{
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static char szBuffer[100];
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char *szResult = NULL;
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FILE *fp = fopen(filename, "rt");
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if (fp != NULL) {
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/*
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* Read data until we see our match string.
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*/
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while (fgets(szBuffer, sizeof(szBuffer), fp) != NULL) {
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LPSTR p, q;
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p = strstr(szBuffer, match);
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if (p != NULL) {
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/*
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* Skip to first digit after the match.
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*/
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p += strlen(match);
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while (*p && !isdigit((unsigned char)*p)) {
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++p;
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}
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/*
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* Find ending whitespace.
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*/
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q = p;
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while (*q && (strchr("0123456789.ab", *q)) && (((!strchr(".ab", *q)
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&& !strchr("ab", q[-1])) || --numdots))) {
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++q;
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}
|
||
|
||
*q = 0;
|
||
szResult = p;
|
||
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 = (list_item_t *)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)
|
||
{
|
||
static char szBuffer[1024], szCopy[1024];
|
||
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, sizeof(szBuffer), 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, sizeof(szBuffer), 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("%s", 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];
|
||
size_t dirlen;
|
||
int 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)
|
||
{
|
||
size_t i;
|
||
int 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:
|
||
*/
|