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source: trunk/dll/pathutil.c@ 1750

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Last change on this file since 1750 was 1750, checked in by John Small, 11 years ago

Ticket #524: Made "searchapath" thread-safe. Function names and signatures were changed.

So calls to these functions, direct and indirect, had to be changed.

Property svn:keywords set to Author Date Id Revision

File size: 11.7 KB

Rev	Line
[907]	1
	2	/***********************************************************************
	3
[1323]	4	$Id: pathutil.c 1750 2014-03-01 13:55:57Z jbs $
[907]	5
	6	Path handling utility functions
	7
	8	Copyright (c) 1993-98 M. Kimes
[1394]	9	Copyright (c) 2001, 2009 Steven H. Levine
[907]	10
	11	05 Jan 08 SHL Move from arccnrs.c and comp.c to here
[920]	12	06 Jan 08 GKY Add NormalizeCmdLine to check program strings on entry
[985]	13	29 Feb 08 GKY Changes to enable user settable command line length
[1699]	14	15 Oct 08 GKY Fix NormalizeCmdLine to check all 5 executable extensions when no extension provided;
[1394]	15	use searchapath to check for existance of file types not checked by DosQAppType;
[1439]	16	close DosFind.
	17	28 Jun 09 GKY Added AddBackslashToPath() to remove repeatative code
[1480]	18	12 Jul 09 GKY Add xDosQueryAppType and xDosAlloc... to allow FM/2 to load in high memory
[1545]	19	23 Oct 10 GKY Add ForwardslashToBackslash function to streamline code
[1632]	20	17 Sep 11 GKY Fix commandline quoting issues
[1750]	21	01 Mar 14 JBS Ticket #524: Made "searchapath" thread-safe. Function names and signatures were changed.
	22	So calls to these functions had to be changed.
[907]	23
	24	***********************************************************************/
	25
[1039]	26	#include <stdlib.h>
[907]	27	#include <string.h>
	28
	29	#define INCL_WIN
[920]	30	#define INCL_DOS
[907]	31	#define INCL_LONGLONG
	32
[1185]	33	#include "fm3dll.h" // needs_quoting
[1211]	34	#include "notebook.h" // Data declaration(s)
	35	#include "init.h" // Data declaration(s)
[1185]	36	#include "fm3str.h"
[1750]	37	#include "srchpath.h" // SearchPathForFile
[907]	38	#include "pathutil.h"
[1161]	39	#include "strips.h" // remove_first_occurence_of_character
[1185]	40	#include "valid.h" // needs_quoting
[920]	41	#include "errutil.h" // Dos_Error...
	42	#include "strutil.h" // GetPString
[1185]	43	#include "wrappers.h" // xmalloc
[1039]	44	#include "fortify.h"
[1398]	45	#include "stristr.h" //stristr
[907]	46
[985]	47	static PSZ pszSrcFile = __FILE__;
	48
[1545]	49	PSZ ForwardslashToBackslash(PSZ pszPathName)
	50	{
	51	CHAR *p;
	52
	53	p = pszPathName;
	54	while (*p) {
	55	if (*p == '/')
	56	*p = '\\';
	57	p++;
	58	}
	59	return pszPathName;
	60	}
	61
[1438]	62	PSZ AddBackslashToPath(PSZ pszPathName)
	63	{
	64	if (pszPathName[strlen(pszPathName) - 1] != '\\')
	65	strcat(pszPathName, PCSZ_BACKSLASH);
	66	return pszPathName;
	67	}
	68
[907]	69	// #pragma data_seg(DATA1)
	70
	71	/**
	72	* Build full path name in callers buffer given directory
	73	* name and filename
	74	* @param pszPathName points to drive/directory if not NULL
	75	* @returns pointer to full path name in caller's buffer
	76	* @note OK for pszFullPathName and pszPathName to point to same buffer
	77	*
	78	*/
	79
[1398]	80	PSZ BldFullPathName(PSZ pszFullPathName, PCSZ pszPathName, PCSZ pszFileName)
[907]	81	{
	82	UINT c = pszPathName ? strlen(pszPathName) : 0;
	83	if (c > 0) {
[1568]	84	if (pszFullPathName != pszPathName)
	85	memcpy(pszFullPathName, pszPathName, c);
[907]	86	if (pszFullPathName[c - 1] != '\\')
	87	pszFullPathName[c++] = '\\';
	88	}
	89	strcpy(pszFullPathName + c, pszFileName);
	90	return pszFullPathName;
	91	}
	92
	93	/**
	94	* Build quoted full path name in callers buffer given
	95	* directory name and filename
	96	* @param pszPathName points to drive/directory if not NULL
	97	* @returns pointer to quoted path name in caller's buffer
	98	*/
	99
[1398]	100	PSZ BldQuotedFullPathName(PSZ pszFullPathName, PCSZ pszPathName, PCSZ pszFileName)
[907]	101	{
	102	UINT c = pszPathName ? strlen(pszPathName) : 0;
[1161]	103	BOOL q = needs_quoting(pszPathName) \|\| needs_quoting(pszFileName);
[907]	104	PSZ psz = pszFullPathName;
	105
	106	if (q)
	107	*psz++ = '"';
	108	if (c > 0) {
	109	memcpy(psz, pszPathName, c);
	110	psz += c;
	111	if (*(psz - 1) != '\\')
	112	*psz++ = '\\';
	113	}
	114	strcpy(psz, pszFileName);
	115	if (q) {
	116	psz += strlen(psz);
	117	*psz++ = '"';
	118	*psz = 0;
	119	}
	120	return pszFullPathName;
	121	}
	122
	123	/**
	124	* Build quoted full path name in callers buffer given a filename
	125	* @returns pointer to quoted file name in caller's buffer
	126	*/
	127
[1394]	128	PSZ BldQuotedFileName(PSZ pszQuotedFileName, PCSZ pszFileName)
[907]	129	{
	130	BOOL q = needs_quoting(pszFileName);
	131	PSZ psz = pszQuotedFileName;
	132
	133	if (q)
	134	*psz++ = '"';
	135	strcpy(psz, pszFileName);
	136	if (q) {
	137	psz += strlen(psz);
	138	*psz++ = '"';
	139	*psz = 0;
	140	}
	141	return pszQuotedFileName;
	142	}
	143
[920]	144	/** NormalizeCmdLine
	145	* Checks a command line for common errors (missing quotes, missing extension,
[1248]	146	* no space between exe and args etc) Also check for the existance of the file
	147	* and checks .com and .exe file headers.
[920]	148	* Command line passed as pszCmdLine_
[985]	149	* A pointer to a buffer of the size MaxComLineStrg should be supplied in
[920]	150	* pszWorkBuf. This is where the quoted etc as necessary command
	151	* line string will be returned.
	152	*/
	153
	154	PCSZ NormalizeCmdLine(PSZ pszWorkBuf, PSZ pszCmdLine_)
	155	{
[985]	156	char szCmdLine, szArgs;
[920]	157	char offset = '\0', offsetexe, offsetcom, offsetcmd, offsetbtm, offsetbat;
	158	APIRET ret;
	159	ULONG ulAppType;
	160	char *pszChar;
	161	PSZ pszNewCmdLine = pszWorkBuf;
	162
[985]	163	szCmdLine = xmalloc(MaxComLineStrg, pszSrcFile, __LINE__);
	164	if (!szCmdLine)
	165	return pszCmdLine_; //already complained
	166	szArgs = xmalloc(MaxComLineStrg, pszSrcFile, __LINE__);
	167	if (!szArgs) {
[1039]	168	free(szCmdLine);
[985]	169	return pszCmdLine_; //already complained
	170	}
[920]	171	bstrip(pszCmdLine_);
[985]	172	memset(pszWorkBuf, 0, MaxComLineStrg);
[920]	173	strcpy(szCmdLine, pszCmdLine_);
	174	if (szCmdLine[0] != '\0') {
[1398]	175	offsetexe = stristr(pszCmdLine_, PCSZ_DOTEXE);
	176	offsetcmd = stristr(pszCmdLine_, PCSZ_DOTCMD);
	177	offsetcom = stristr(pszCmdLine_, PCSZ_DOTCOM);
	178	offsetbtm = stristr(pszCmdLine_, PCSZ_DOTBTM);
	179	offsetbat = stristr(pszCmdLine_, PCSZ_DOTBAT);
[920]	180	if (offsetexe)
	181	offset = offsetexe;
	182	else {
	183	if (offsetcom)
	184	offset = offsetcom;
	185	else {
	186	if (offsetcmd)
	187	offset = offsetcmd;
	188	else {
	189	if (offsetbtm)
	190	offset = offsetbtm;
	191	else {
	192	if (offsetbat)
	193	offset = offsetexe;
	194	}
	195	}
	196	}
	197	}
	198	if (offset) {
	199	szCmdLine[offset + 4 - pszCmdLine_] = '\0';
	200	strcpy(szArgs, &pszCmdLine_[offset + 4 - pszCmdLine_]);
	201	while (strchr(szCmdLine, '\"'))
	202	remove_first_occurence_of_character("\"", szCmdLine);
	203	if ((szArgs[0] == '\"' && szArgs[1] == ' ') \|\|
[1631]	204	(!strstr(pszCmdLine_, "\\:") && strchr(szArgs, '\"') &&
	205	strchr(szArgs, '\"') == strrchr(szArgs, '\"')))
[920]	206	remove_first_occurence_of_character("\"", szArgs);
	207	if (strchr(szArgs, '\"') != strrchr(szArgs, '\"'))
	208	saymsg(MB_OK, HWND_DESKTOP,
	209	NullStr,
	210	GetPString(IDS_QUOTESINARGSTEXT),
	211	pszCmdLine_);
[1247]	212	if (!offsetexe && !offsetcom) {
[1750]	213	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL))
	214	ret = 0;
[920]	215	}
	216	else
[1439]	217	ret = xDosQueryAppType(szCmdLine, &ulAppType);
[920]	218	BldQuotedFileName(pszNewCmdLine, szCmdLine);
	219	if (ret) {
[1394]	220	ret = saymsg(MB_YESNO,
	221	HWND_DESKTOP,
	222	NullStr,
	223	GetPString(IDS_PROGRAMNOTFOUNDTEXT),
	224	pszCmdLine_);
	225	if (ret == MBID_YES){
	226	if (szArgs[0] != ' ')
	227	strcat(pszNewCmdLine, " ");
	228	strcat(pszNewCmdLine, szArgs);
[920]	229	}
[1394]	230	else{
	231	fCancelAction = TRUE;
	232	pszNewCmdLine = pszCmdLine_;
	233	}
[920]	234	}
	235	else{
[1394]	236	if (szArgs[0] != ' ')
	237	strcat(pszNewCmdLine, " ");
	238	strcat(pszNewCmdLine, szArgs);
[920]	239	}
	240
	241	}
[1247]	242	// if it doesn't have an extension try it with all the standard ones and add if found
[920]	243	else if (szCmdLine && (!strchr(szCmdLine, '.') \|\|
[1247]	244	strrchr(szCmdLine, '.' ) < strrchr(szCmdLine, '\\'))) {
[920]	245	if (!strchr(szCmdLine, ' ')) {
[1394]	246	// strip quotes readded by BuildQuotedFileName
[920]	247	while (strchr(szCmdLine, '\"'))
	248	remove_first_occurence_of_character("\"", szCmdLine);
[1439]	249	ret = xDosQueryAppType(szCmdLine, &ulAppType); // exe automatically appended
[1394]	250	if (!ret)
[1398]	251	strcat(szCmdLine, PCSZ_DOTEXE);
[1394]	252	else {
[1398]	253	strcat(szCmdLine, PCSZ_DOTCOM);
[1439]	254	ret = xDosQueryAppType(szCmdLine, &ulAppType);
[1394]	255	if (ret) {
	256	offset = strrchr(szCmdLine, '.' );
	257	*offset = 0;
[1398]	258	strcat(szCmdLine, PCSZ_DOTCMD);
[1750]	259	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL))
[1394]	260	ret = 0;
	261	else {
	262	*offset = 0;
[1398]	263	strcat(szCmdLine, PCSZ_DOTBAT);
[1750]	264	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL))
[1394]	265	ret = 0;
	266	else {
	267	*offset = 0;
[1398]	268	strcat(szCmdLine, PCSZ_DOTBTM);
[1750]	269	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL))
[1394]	270	ret = 0;
	271	}
	272	}
	273	}
	274	}
[920]	275	}
	276	else {
	277	pszChar = szCmdLine;
	278	while (pszChar) {
	279	while (strchr(szCmdLine, '\"'))
	280	remove_first_occurence_of_character("\"", szCmdLine);
[1247]	281	if (*pszChar == ' ') { //test at every space for the end of the filename
[920]	282	*pszChar = '\0';
[1439]	283	ret = xDosQueryAppType(szCmdLine, &ulAppType);
[1394]	284	if (!ret) {
[1398]	285	strcat(szCmdLine, PCSZ_DOTEXE);
[1394]	286	break;
	287	}
	288	else {
[1398]	289	strcat(szCmdLine, PCSZ_DOTCOM);
[1439]	290	ret = xDosQueryAppType(szCmdLine, &ulAppType);
[1394]	291	if (ret) {
	292	offset = strrchr(szCmdLine, '.' );
	293	*offset = 0;
[1398]	294	strcat(szCmdLine, PCSZ_DOTCMD);
[1750]	295	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL)) {
[1394]	296	ret = 0;
	297	break;
	298	}
	299	else {
	300	*offset = 0;
[1398]	301	strcat(szCmdLine, PCSZ_DOTBAT);
[1750]	302	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL)) {
[1394]	303	ret = 0;
	304	break;
	305	}
	306	else {
	307	*offset = 0;
[1398]	308	strcat(szCmdLine, PCSZ_DOTBTM);
[1750]	309	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL)) {
[1394]	310	ret = 0;
	311	break;
	312	}
	313	}
	314	}
	315	}
	316	else
	317	break;
	318	}
[920]	319	}
	320	strcpy(szCmdLine, pszCmdLine_);
	321	pszChar++;
	322	}
	323	}
	324	if (!ret){
[1394]	325	BldQuotedFileName(pszNewCmdLine, szCmdLine);
	326	strcpy(szArgs, pszCmdLine_ + strlen(szCmdLine) - 3);
	327	if ((szArgs[0] == '\"' && szArgs[1] == ' ') \|\|
	328	!strstr(pszCmdLine_, "\\:" ) \|\|
	329	strchr(szArgs, '\"') == strrchr(szArgs, '\"'))
	330	remove_first_occurence_of_character("\"", szArgs);
	331	if (strchr(szArgs, '\"') != strrchr(szArgs, '\"'))
	332	saymsg(MB_OK, HWND_DESKTOP,
	333	NullStr,
	334	GetPString(IDS_QUOTESINARGSTEXT),
	335	pszCmdLine_);
	336	if (szArgs[0] != ' ')
	337	strcat(pszNewCmdLine, " ");
	338	strcat(pszNewCmdLine, szArgs);
[920]	339	}
[1248]	340	else { // fail if no extension can be found runemf2 requires one
[1394]	341	ret = saymsg(MB_OK,
	342	HWND_DESKTOP,
	343	NullStr,
	344	GetPString(IDS_PROGRAMNOTEXE2TEXT),
	345	pszCmdLine_);
	346	fCancelAction = TRUE;
	347	pszNewCmdLine = pszCmdLine_;
[920]	348	}
	349	}
[1699]	350	else { // file has a nonstandard extension for executable
[920]	351	pszChar = strrchr(szCmdLine, '.');
	352	while (pszChar && *pszChar !=' ') {
	353	pszChar++;
	354	}
	355	*pszChar = '\0';
	356	strcpy (szArgs, pszCmdLine_ + strlen(szCmdLine));
	357	while (strchr(szCmdLine, '\"'))
	358	remove_first_occurence_of_character("\"", szCmdLine);
	359	if ((szArgs[0] == '\"' && szArgs[1] == ' ') \|\|
	360	!strstr(pszCmdLine_, "\\:")\|\|
	361	strchr(szArgs, '\"') == strrchr(szArgs, '\"'))
	362	remove_first_occurence_of_character("\"", szArgs);
	363	if (strchr(szArgs, '\"') != strrchr(szArgs, '\"'))
	364	saymsg(MB_OK, HWND_DESKTOP,
	365	NullStr,
	366	GetPString(IDS_QUOTESINARGSTEXT),
	367	pszCmdLine_);
	368	BldQuotedFileName(pszNewCmdLine, szCmdLine);
[1750]	369	if (SearchPathForFile(PCSZ_PATH, szCmdLine, NULL)) {
[920]	370	ret = saymsg(MB_YESNO,
	371	HWND_DESKTOP,
	372	NullStr,
	373	GetPString(IDS_PROGRAMNOTFOUNDTEXT),
	374	pszCmdLine_);
	375	if (ret == MBID_YES) {
[1394]	376	if (szArgs[0] != ' ')
	377	strcat(pszNewCmdLine, " ");
	378	strcat(pszNewCmdLine, szArgs);
[920]	379	}
	380	else {
	381	fCancelAction = TRUE;
	382	pszWorkBuf = pszCmdLine_;
	383	}
	384	}
[1248]	385	else {
	386	ret = saymsg(MB_YESNOCANCEL,
[1394]	387	HWND_DESKTOP,
	388	NullStr,
	389	GetPString(IDS_PROGRAMNOTEXE3TEXT),
	390	pszCmdLine_, pszNewCmdLine);
	391	if (ret == MBID_YES){
	392	if (szArgs[0] != ' ')
	393	strcat(pszNewCmdLine, " ");
	394	strcat(pszNewCmdLine, szArgs);
	395	}
	396	if (ret == MBID_CANCEL){
	397	fCancelAction = TRUE;
	398	pszNewCmdLine = pszCmdLine_;
	399	}
[920]	400	}
	401	}
	402	}
[1039]	403	free(szArgs);
	404	free(szCmdLine);
[920]	405	return pszWorkBuf;
	406	}
	407
[907]	408	#pragma alloc_text(PATHUTIL,BldFullPathName)
	409	#pragma alloc_text(PATHUTIL,BldQuotedFileName)
	410	#pragma alloc_text(PATHUTIL,BldQuotedFullPathName)
[920]	411	#pragma alloc_text(PATHUTIL,NormalizeCmdLine)

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