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source: trunk/dll/pathutil.c@ 1782

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Last change on this file since 1782 was 1782, checked in by Gregg Young, 11 years ago
Addition code issues found based on cppcheck warnings
Property svn:keywords set to `Author Date Id Revision`
File size: 12.4 KB

Rev	Line
[907]	1
	2	/***********************************************************************
	3
[1323]	4	$Id: pathutil.c 1782 2014-06-28 21:34:01Z gyoung $
[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;
[1761]	16	close DosFind.
[1439]	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.
[1761]	22	So calls to these functions had to be changed.
	23	21 Mar 14 SHL Add IsAbsolutePath
[1782]	24	28 Jun 14 GKY Fix errors identified with CPPCheck;
[907]	25
	26	***********************************************************************/
	27
[1039]	28	#include <stdlib.h>
[907]	29	#include <string.h>
[1761]	30	#include <ctype.h>
[907]	31
	32	#define INCL_WIN
[920]	33	#define INCL_DOS
[907]	34	#define INCL_LONGLONG
	35
[1185]	36	#include "fm3dll.h" // needs_quoting
[1211]	37	#include "notebook.h" // Data declaration(s)
	38	#include "init.h" // Data declaration(s)
[1185]	39	#include "fm3str.h"
[1750]	40	#include "srchpath.h" // SearchPathForFile
[907]	41	#include "pathutil.h"
[1161]	42	#include "strips.h" // remove_first_occurence_of_character
[1185]	43	#include "valid.h" // needs_quoting
[920]	44	#include "errutil.h" // Dos_Error...
	45	#include "strutil.h" // GetPString
[1185]	46	#include "wrappers.h" // xmalloc
[1039]	47	#include "fortify.h"
[1398]	48	#include "stristr.h" //stristr
[907]	49
[985]	50	static PSZ pszSrcFile = __FILE__;
	51
[1545]	52	PSZ ForwardslashToBackslash(PSZ pszPathName)
	53	{
	54	CHAR *p;
	55
	56	p = pszPathName;
	57	while (*p) {
	58	if (*p == '/')
	59	*p = '\\';
	60	p++;
	61	}
	62	return pszPathName;
	63	}
	64
[1438]	65	PSZ AddBackslashToPath(PSZ pszPathName)
	66	{
	67	if (pszPathName[strlen(pszPathName) - 1] != '\\')
	68	strcat(pszPathName, PCSZ_BACKSLASH);
	69	return pszPathName;
	70	}
	71
[907]	72	// #pragma data_seg(DATA1)
	73
	74	/**
	75	* Build full path name in callers buffer given directory
	76	* name and filename
	77	* @param pszPathName points to drive/directory if not NULL
	78	* @returns pointer to full path name in caller's buffer
	79	* @note OK for pszFullPathName and pszPathName to point to same buffer
	80	*
	81	*/
	82
[1398]	83	PSZ BldFullPathName(PSZ pszFullPathName, PCSZ pszPathName, PCSZ pszFileName)
[907]	84	{
	85	UINT c = pszPathName ? strlen(pszPathName) : 0;
	86	if (c > 0) {
[1568]	87	if (pszFullPathName != pszPathName)
	88	memcpy(pszFullPathName, pszPathName, c);
[907]	89	if (pszFullPathName[c - 1] != '\\')
	90	pszFullPathName[c++] = '\\';
	91	}
	92	strcpy(pszFullPathName + c, pszFileName);
	93	return pszFullPathName;
	94	}
	95
	96	/**
	97	* Build quoted full path name in callers buffer given
	98	* directory name and filename
	99	* @param pszPathName points to drive/directory if not NULL
	100	* @returns pointer to quoted path name in caller's buffer
	101	*/
	102
[1398]	103	PSZ BldQuotedFullPathName(PSZ pszFullPathName, PCSZ pszPathName, PCSZ pszFileName)
[907]	104	{
	105	UINT c = pszPathName ? strlen(pszPathName) : 0;
[1161]	106	BOOL q = needs_quoting(pszPathName) \|\| needs_quoting(pszFileName);
[907]	107	PSZ psz = pszFullPathName;
	108
	109	if (q)
	110	*psz++ = '"';
	111	if (c > 0) {
	112	memcpy(psz, pszPathName, c);
	113	psz += c;
	114	if (*(psz - 1) != '\\')
	115	*psz++ = '\\';
	116	}
	117	strcpy(psz, pszFileName);
	118	if (q) {
	119	psz += strlen(psz);
	120	*psz++ = '"';
	121	*psz = 0;
	122	}
	123	return pszFullPathName;
	124	}
	125
	126	/**
	127	* Build quoted full path name in callers buffer given a filename
	128	* @returns pointer to quoted file name in caller's buffer
	129	*/
	130
[1394]	131	PSZ BldQuotedFileName(PSZ pszQuotedFileName, PCSZ pszFileName)
[907]	132	{
	133	BOOL q = needs_quoting(pszFileName);
	134	PSZ psz = pszQuotedFileName;
	135
	136	if (q)
	137	*psz++ = '"';
	138	strcpy(psz, pszFileName);
	139	if (q) {
	140	psz += strlen(psz);
	141	*psz++ = '"';
	142	*psz = 0;
	143	}
	144	return pszQuotedFileName;
	145	}
	146
[1761]	147	/**
	148	* Return TRUE if absolute path name
	149	* @param pszPathName points to path name
	150	* @returns TRUE if absolute path, with or without drive letter
	151	* @note Odd inputs return FALSE
	152	*
	153	*/
	154
	155	BOOL IsAbsolutePath(PCSZ pszPathName)
	156	{
	157	return pszPathName &&
	158	pszPathName[0] &&
	159	((pszPathName[0] == '\\' \|\| pszPathName[0] == '/') \|\|
	160	(toupper(pszPathName[0]) >= 'A' &&
	161	toupper(pszPathName[0]) <= 'Z' &&
	162	pszPathName[1] &&
	163	pszPathName[1] == ':' &&
	164	(pszPathName[2] == '\\' \|\| pszPathName[2] == '/')));
	165	}
	166
[920]	167	/** NormalizeCmdLine
	168	* Checks a command line for common errors (missing quotes, missing extension,
[1248]	169	* no space between exe and args etc) Also check for the existance of the file
	170	* and checks .com and .exe file headers.
[920]	171	* Command line passed as pszCmdLine_
[985]	172	* A pointer to a buffer of the size MaxComLineStrg should be supplied in
[920]	173	* pszWorkBuf. This is where the quoted etc as necessary command
	174	* line string will be returned.
	175	*/
	176
	177	PCSZ NormalizeCmdLine(PSZ pszWorkBuf, PSZ pszCmdLine_)
	178	{
[985]	179	char szCmdLine, szArgs;
[920]	180	char offset = '\0', offsetexe, offsetcom, offsetcmd, offsetbtm, offsetbat;
	181	APIRET ret;
	182	ULONG ulAppType;
	183	char *pszChar;
	184	PSZ pszNewCmdLine = pszWorkBuf;
	185
[985]	186	szCmdLine = xmalloc(MaxComLineStrg, pszSrcFile, __LINE__);
	187	if (!szCmdLine)
	188	return pszCmdLine_; //already complained
	189	szArgs = xmalloc(MaxComLineStrg, pszSrcFile, __LINE__);
	190	if (!szArgs) {
[1039]	191	free(szCmdLine);
[985]	192	return pszCmdLine_; //already complained
	193	}
[920]	194	bstrip(pszCmdLine_);
[985]	195	memset(pszWorkBuf, 0, MaxComLineStrg);
[920]	196	strcpy(szCmdLine, pszCmdLine_);
	197	if (szCmdLine[0] != '\0') {
[1398]	198	offsetexe = stristr(pszCmdLine_, PCSZ_DOTEXE);
	199	offsetcmd = stristr(pszCmdLine_, PCSZ_DOTCMD);
	200	offsetcom = stristr(pszCmdLine_, PCSZ_DOTCOM);
	201	offsetbtm = stristr(pszCmdLine_, PCSZ_DOTBTM);
	202	offsetbat = stristr(pszCmdLine_, PCSZ_DOTBAT);
[920]	203	if (offsetexe)
	204	offset = offsetexe;
	205	else {
	206	if (offsetcom)
	207	offset = offsetcom;
	208	else {
	209	if (offsetcmd)
	210	offset = offsetcmd;
	211	else {
	212	if (offsetbtm)
	213	offset = offsetbtm;
	214	else {
	215	if (offsetbat)
	216	offset = offsetexe;
	217	}
	218	}
	219	}
	220	}
	221	if (offset) {
	222	szCmdLine[offset + 4 - pszCmdLine_] = '\0';
	223	strcpy(szArgs, &pszCmdLine_[offset + 4 - pszCmdLine_]);
	224	while (strchr(szCmdLine, '\"'))
	225	remove_first_occurence_of_character("\"", szCmdLine);
	226	if ((szArgs[0] == '\"' && szArgs[1] == ' ') \|\|
[1631]	227	(!strstr(pszCmdLine_, "\\:") && strchr(szArgs, '\"') &&
	228	strchr(szArgs, '\"') == strrchr(szArgs, '\"')))
[920]	229	remove_first_occurence_of_character("\"", szArgs);
	230	if (strchr(szArgs, '\"') != strrchr(szArgs, '\"'))
	231	saymsg(MB_OK, HWND_DESKTOP,
	232	NullStr,
	233	GetPString(IDS_QUOTESINARGSTEXT),
	234	pszCmdLine_);
[1247]	235	if (!offsetexe && !offsetcom) {
[1761]	236	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL))
	237	ret = 0;
[920]	238	}
	239	else
[1439]	240	ret = xDosQueryAppType(szCmdLine, &ulAppType);
[920]	241	BldQuotedFileName(pszNewCmdLine, szCmdLine);
	242	if (ret) {
[1394]	243	ret = saymsg(MB_YESNO,
	244	HWND_DESKTOP,
	245	NullStr,
	246	GetPString(IDS_PROGRAMNOTFOUNDTEXT),
	247	pszCmdLine_);
	248	if (ret == MBID_YES){
	249	if (szArgs[0] != ' ')
	250	strcat(pszNewCmdLine, " ");
	251	strcat(pszNewCmdLine, szArgs);
[920]	252	}
[1394]	253	else{
	254	fCancelAction = TRUE;
	255	pszNewCmdLine = pszCmdLine_;
	256	}
[920]	257	}
	258	else{
[1394]	259	if (szArgs[0] != ' ')
	260	strcat(pszNewCmdLine, " ");
	261	strcat(pszNewCmdLine, szArgs);
[920]	262	}
	263
	264	}
[1247]	265	// if it doesn't have an extension try it with all the standard ones and add if found
[1782]	266	else if (!strchr(szCmdLine, '.') \|\|
	267	strrchr(szCmdLine, '.' ) < strrchr(szCmdLine, '\\')) {
[920]	268	if (!strchr(szCmdLine, ' ')) {
[1394]	269	// strip quotes readded by BuildQuotedFileName
[920]	270	while (strchr(szCmdLine, '\"'))
	271	remove_first_occurence_of_character("\"", szCmdLine);
[1439]	272	ret = xDosQueryAppType(szCmdLine, &ulAppType); // exe automatically appended
[1394]	273	if (!ret)
[1398]	274	strcat(szCmdLine, PCSZ_DOTEXE);
[1394]	275	else {
[1398]	276	strcat(szCmdLine, PCSZ_DOTCOM);
[1439]	277	ret = xDosQueryAppType(szCmdLine, &ulAppType);
[1394]	278	if (ret) {
	279	offset = strrchr(szCmdLine, '.' );
	280	*offset = 0;
[1398]	281	strcat(szCmdLine, PCSZ_DOTCMD);
[1750]	282	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL))
[1394]	283	ret = 0;
	284	else {
	285	*offset = 0;
[1398]	286	strcat(szCmdLine, PCSZ_DOTBAT);
[1750]	287	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL))
[1394]	288	ret = 0;
	289	else {
	290	*offset = 0;
[1398]	291	strcat(szCmdLine, PCSZ_DOTBTM);
[1750]	292	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL))
[1394]	293	ret = 0;
	294	}
	295	}
	296	}
	297	}
[920]	298	}
	299	else {
	300	pszChar = szCmdLine;
	301	while (pszChar) {
	302	while (strchr(szCmdLine, '\"'))
	303	remove_first_occurence_of_character("\"", szCmdLine);
[1247]	304	if (*pszChar == ' ') { //test at every space for the end of the filename
[920]	305	*pszChar = '\0';
[1439]	306	ret = xDosQueryAppType(szCmdLine, &ulAppType);
[1394]	307	if (!ret) {
[1398]	308	strcat(szCmdLine, PCSZ_DOTEXE);
[1394]	309	break;
	310	}
	311	else {
[1398]	312	strcat(szCmdLine, PCSZ_DOTCOM);
[1439]	313	ret = xDosQueryAppType(szCmdLine, &ulAppType);
[1394]	314	if (ret) {
	315	offset = strrchr(szCmdLine, '.' );
	316	*offset = 0;
[1398]	317	strcat(szCmdLine, PCSZ_DOTCMD);
[1750]	318	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL)) {
[1394]	319	ret = 0;
	320	break;
	321	}
	322	else {
	323	*offset = 0;
[1398]	324	strcat(szCmdLine, PCSZ_DOTBAT);
[1750]	325	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL)) {
[1394]	326	ret = 0;
	327	break;
	328	}
	329	else {
	330	*offset = 0;
[1398]	331	strcat(szCmdLine, PCSZ_DOTBTM);
[1750]	332	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL)) {
[1394]	333	ret = 0;
	334	break;
	335	}
	336	}
	337	}
	338	}
	339	else
	340	break;
	341	}
[920]	342	}
	343	strcpy(szCmdLine, pszCmdLine_);
	344	pszChar++;
	345	}
	346	}
	347	if (!ret){
[1394]	348	BldQuotedFileName(pszNewCmdLine, szCmdLine);
	349	strcpy(szArgs, pszCmdLine_ + strlen(szCmdLine) - 3);
	350	if ((szArgs[0] == '\"' && szArgs[1] == ' ') \|\|
	351	!strstr(pszCmdLine_, "\\:" ) \|\|
	352	strchr(szArgs, '\"') == strrchr(szArgs, '\"'))
	353	remove_first_occurence_of_character("\"", szArgs);
	354	if (strchr(szArgs, '\"') != strrchr(szArgs, '\"'))
	355	saymsg(MB_OK, HWND_DESKTOP,
	356	NullStr,
	357	GetPString(IDS_QUOTESINARGSTEXT),
	358	pszCmdLine_);
	359	if (szArgs[0] != ' ')
	360	strcat(pszNewCmdLine, " ");
	361	strcat(pszNewCmdLine, szArgs);
[920]	362	}
[1248]	363	else { // fail if no extension can be found runemf2 requires one
[1394]	364	ret = saymsg(MB_OK,
	365	HWND_DESKTOP,
	366	NullStr,
	367	GetPString(IDS_PROGRAMNOTEXE2TEXT),
	368	pszCmdLine_);
	369	fCancelAction = TRUE;
	370	pszNewCmdLine = pszCmdLine_;
[920]	371	}
	372	}
[1699]	373	else { // file has a nonstandard extension for executable
[920]	374	pszChar = strrchr(szCmdLine, '.');
	375	while (pszChar && *pszChar !=' ') {
	376	pszChar++;
	377	}
	378	*pszChar = '\0';
	379	strcpy (szArgs, pszCmdLine_ + strlen(szCmdLine));
	380	while (strchr(szCmdLine, '\"'))
	381	remove_first_occurence_of_character("\"", szCmdLine);
	382	if ((szArgs[0] == '\"' && szArgs[1] == ' ') \|\|
	383	!strstr(pszCmdLine_, "\\:")\|\|
	384	strchr(szArgs, '\"') == strrchr(szArgs, '\"'))
	385	remove_first_occurence_of_character("\"", szArgs);
	386	if (strchr(szArgs, '\"') != strrchr(szArgs, '\"'))
	387	saymsg(MB_OK, HWND_DESKTOP,
	388	NullStr,
	389	GetPString(IDS_QUOTESINARGSTEXT),
	390	pszCmdLine_);
	391	BldQuotedFileName(pszNewCmdLine, szCmdLine);
[1750]	392	if (SearchPathForFile(PCSZ_PATH, szCmdLine, NULL)) {
[920]	393	ret = saymsg(MB_YESNO,
	394	HWND_DESKTOP,
	395	NullStr,
	396	GetPString(IDS_PROGRAMNOTFOUNDTEXT),
	397	pszCmdLine_);
	398	if (ret == MBID_YES) {
[1394]	399	if (szArgs[0] != ' ')
	400	strcat(pszNewCmdLine, " ");
	401	strcat(pszNewCmdLine, szArgs);
[920]	402	}
	403	else {
	404	fCancelAction = TRUE;
	405	pszWorkBuf = pszCmdLine_;
	406	}
	407	}
[1248]	408	else {
	409	ret = saymsg(MB_YESNOCANCEL,
[1394]	410	HWND_DESKTOP,
	411	NullStr,
	412	GetPString(IDS_PROGRAMNOTEXE3TEXT),
	413	pszCmdLine_, pszNewCmdLine);
	414	if (ret == MBID_YES){
	415	if (szArgs[0] != ' ')
	416	strcat(pszNewCmdLine, " ");
	417	strcat(pszNewCmdLine, szArgs);
	418	}
	419	if (ret == MBID_CANCEL){
	420	fCancelAction = TRUE;
	421	pszNewCmdLine = pszCmdLine_;
	422	}
[920]	423	}
	424	}
	425	}
[1039]	426	free(szArgs);
	427	free(szCmdLine);
[920]	428	return pszWorkBuf;
	429	}
	430
[907]	431	#pragma alloc_text(PATHUTIL,BldFullPathName)
	432	#pragma alloc_text(PATHUTIL,BldQuotedFileName)
	433	#pragma alloc_text(PATHUTIL,BldQuotedFullPathName)
[920]	434	#pragma alloc_text(PATHUTIL,NormalizeCmdLine)
[1761]	435	#pragma alloc_text(PATHUTIL,IsAbsolutePath)

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