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pathutil.c@ 1908

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Last change on this file since 1908 was 1880, checked in by Gregg Young, 10 years ago
Remove dead code and comments from remaining c files. #if 0 and #if NEVER were not addressed
Property svn:keywords set to `Author Date Id Revision`
File size: 12.3 KB

Rev	Line
[907]	1
	2	/***********************************************************************
	3
[1323]	4	$Id: pathutil.c 1880 2015-10-12 18:26:16Z 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	/**
	73	* Build full path name in callers buffer given directory
	74	* name and filename
	75	* @param pszPathName points to drive/directory if not NULL
	76	* @returns pointer to full path name in caller's buffer
	77	* @note OK for pszFullPathName and pszPathName to point to same buffer
	78	*
	79	*/
	80
[1398]	81	PSZ BldFullPathName(PSZ pszFullPathName, PCSZ pszPathName, PCSZ pszFileName)
[907]	82	{
	83	UINT c = pszPathName ? strlen(pszPathName) : 0;
	84	if (c > 0) {
[1568]	85	if (pszFullPathName != pszPathName)
	86	memcpy(pszFullPathName, pszPathName, c);
[907]	87	if (pszFullPathName[c - 1] != '\\')
	88	pszFullPathName[c++] = '\\';
	89	}
	90	strcpy(pszFullPathName + c, pszFileName);
	91	return pszFullPathName;
	92	}
	93
	94	/**
	95	* Build quoted full path name in callers buffer given
	96	* directory name and filename
	97	* @param pszPathName points to drive/directory if not NULL
	98	* @returns pointer to quoted path name in caller's buffer
	99	*/
	100
[1398]	101	PSZ BldQuotedFullPathName(PSZ pszFullPathName, PCSZ pszPathName, PCSZ pszFileName)
[907]	102	{
	103	UINT c = pszPathName ? strlen(pszPathName) : 0;
[1161]	104	BOOL q = needs_quoting(pszPathName) \|\| needs_quoting(pszFileName);
[907]	105	PSZ psz = pszFullPathName;
	106
	107	if (q)
	108	*psz++ = '"';
	109	if (c > 0) {
	110	memcpy(psz, pszPathName, c);
	111	psz += c;
	112	if (*(psz - 1) != '\\')
	113	*psz++ = '\\';
	114	}
	115	strcpy(psz, pszFileName);
	116	if (q) {
	117	psz += strlen(psz);
	118	*psz++ = '"';
	119	*psz = 0;
	120	}
	121	return pszFullPathName;
	122	}
	123
	124	/**
	125	* Build quoted full path name in callers buffer given a filename
	126	* @returns pointer to quoted file name in caller's buffer
	127	*/
	128
[1394]	129	PSZ BldQuotedFileName(PSZ pszQuotedFileName, PCSZ pszFileName)
[907]	130	{
	131	BOOL q = needs_quoting(pszFileName);
	132	PSZ psz = pszQuotedFileName;
	133
	134	if (q)
	135	*psz++ = '"';
	136	strcpy(psz, pszFileName);
	137	if (q) {
	138	psz += strlen(psz);
	139	*psz++ = '"';
	140	*psz = 0;
	141	}
	142	return pszQuotedFileName;
	143	}
	144
[1761]	145	/**
	146	* Return TRUE if absolute path name
	147	* @param pszPathName points to path name
	148	* @returns TRUE if absolute path, with or without drive letter
	149	* @note Odd inputs return FALSE
	150	*
	151	*/
	152
	153	BOOL IsAbsolutePath(PCSZ pszPathName)
	154	{
	155	return pszPathName &&
	156	pszPathName[0] &&
	157	((pszPathName[0] == '\\' \|\| pszPathName[0] == '/') \|\|
	158	(toupper(pszPathName[0]) >= 'A' &&
	159	toupper(pszPathName[0]) <= 'Z' &&
	160	pszPathName[1] &&
	161	pszPathName[1] == ':' &&
	162	(pszPathName[2] == '\\' \|\| pszPathName[2] == '/')));
	163	}
	164
[920]	165	/** NormalizeCmdLine
	166	* Checks a command line for common errors (missing quotes, missing extension,
[1248]	167	* no space between exe and args etc) Also check for the existance of the file
	168	* and checks .com and .exe file headers.
[920]	169	* Command line passed as pszCmdLine_
[985]	170	* A pointer to a buffer of the size MaxComLineStrg should be supplied in
[920]	171	* pszWorkBuf. This is where the quoted etc as necessary command
	172	* line string will be returned.
	173	*/
	174
	175	PCSZ NormalizeCmdLine(PSZ pszWorkBuf, PSZ pszCmdLine_)
	176	{
[985]	177	char szCmdLine, szArgs;
[920]	178	char offset = '\0', offsetexe, offsetcom, offsetcmd, offsetbtm, offsetbat;
	179	APIRET ret;
	180	ULONG ulAppType;
	181	char *pszChar;
	182	PSZ pszNewCmdLine = pszWorkBuf;
	183
[985]	184	szCmdLine = xmalloc(MaxComLineStrg, pszSrcFile, __LINE__);
	185	if (!szCmdLine)
	186	return pszCmdLine_; //already complained
	187	szArgs = xmalloc(MaxComLineStrg, pszSrcFile, __LINE__);
	188	if (!szArgs) {
[1039]	189	free(szCmdLine);
[985]	190	return pszCmdLine_; //already complained
	191	}
[920]	192	bstrip(pszCmdLine_);
[985]	193	memset(pszWorkBuf, 0, MaxComLineStrg);
[920]	194	strcpy(szCmdLine, pszCmdLine_);
	195	if (szCmdLine[0] != '\0') {
[1398]	196	offsetexe = stristr(pszCmdLine_, PCSZ_DOTEXE);
	197	offsetcmd = stristr(pszCmdLine_, PCSZ_DOTCMD);
	198	offsetcom = stristr(pszCmdLine_, PCSZ_DOTCOM);
	199	offsetbtm = stristr(pszCmdLine_, PCSZ_DOTBTM);
	200	offsetbat = stristr(pszCmdLine_, PCSZ_DOTBAT);
[920]	201	if (offsetexe)
	202	offset = offsetexe;
	203	else {
	204	if (offsetcom)
	205	offset = offsetcom;
	206	else {
	207	if (offsetcmd)
	208	offset = offsetcmd;
	209	else {
	210	if (offsetbtm)
	211	offset = offsetbtm;
	212	else {
	213	if (offsetbat)
	214	offset = offsetexe;
	215	}
	216	}
	217	}
	218	}
	219	if (offset) {
	220	szCmdLine[offset + 4 - pszCmdLine_] = '\0';
	221	strcpy(szArgs, &pszCmdLine_[offset + 4 - pszCmdLine_]);
	222	while (strchr(szCmdLine, '\"'))
	223	remove_first_occurence_of_character("\"", szCmdLine);
	224	if ((szArgs[0] == '\"' && szArgs[1] == ' ') \|\|
[1631]	225	(!strstr(pszCmdLine_, "\\:") && strchr(szArgs, '\"') &&
	226	strchr(szArgs, '\"') == strrchr(szArgs, '\"')))
[920]	227	remove_first_occurence_of_character("\"", szArgs);
	228	if (strchr(szArgs, '\"') != strrchr(szArgs, '\"'))
	229	saymsg(MB_OK, HWND_DESKTOP,
	230	NullStr,
	231	GetPString(IDS_QUOTESINARGSTEXT),
	232	pszCmdLine_);
[1247]	233	if (!offsetexe && !offsetcom) {
[1761]	234	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL))
	235	ret = 0;
[920]	236	}
	237	else
[1439]	238	ret = xDosQueryAppType(szCmdLine, &ulAppType);
[920]	239	BldQuotedFileName(pszNewCmdLine, szCmdLine);
	240	if (ret) {
[1394]	241	ret = saymsg(MB_YESNO,
	242	HWND_DESKTOP,
	243	NullStr,
	244	GetPString(IDS_PROGRAMNOTFOUNDTEXT),
	245	pszCmdLine_);
	246	if (ret == MBID_YES){
	247	if (szArgs[0] != ' ')
	248	strcat(pszNewCmdLine, " ");
	249	strcat(pszNewCmdLine, szArgs);
[920]	250	}
[1394]	251	else{
	252	fCancelAction = TRUE;
	253	pszNewCmdLine = pszCmdLine_;
	254	}
[920]	255	}
	256	else{
[1394]	257	if (szArgs[0] != ' ')
	258	strcat(pszNewCmdLine, " ");
	259	strcat(pszNewCmdLine, szArgs);
[920]	260	}
	261
	262	}
[1247]	263	// if it doesn't have an extension try it with all the standard ones and add if found
[1782]	264	else if (!strchr(szCmdLine, '.') \|\|
	265	strrchr(szCmdLine, '.' ) < strrchr(szCmdLine, '\\')) {
[920]	266	if (!strchr(szCmdLine, ' ')) {
[1394]	267	// strip quotes readded by BuildQuotedFileName
[920]	268	while (strchr(szCmdLine, '\"'))
	269	remove_first_occurence_of_character("\"", szCmdLine);
[1439]	270	ret = xDosQueryAppType(szCmdLine, &ulAppType); // exe automatically appended
[1394]	271	if (!ret)
[1398]	272	strcat(szCmdLine, PCSZ_DOTEXE);
[1394]	273	else {
[1398]	274	strcat(szCmdLine, PCSZ_DOTCOM);
[1439]	275	ret = xDosQueryAppType(szCmdLine, &ulAppType);
[1394]	276	if (ret) {
	277	offset = strrchr(szCmdLine, '.' );
	278	*offset = 0;
[1398]	279	strcat(szCmdLine, PCSZ_DOTCMD);
[1750]	280	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL))
[1394]	281	ret = 0;
	282	else {
	283	*offset = 0;
[1398]	284	strcat(szCmdLine, PCSZ_DOTBAT);
[1750]	285	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL))
[1394]	286	ret = 0;
	287	else {
	288	*offset = 0;
[1398]	289	strcat(szCmdLine, PCSZ_DOTBTM);
[1750]	290	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL))
[1394]	291	ret = 0;
	292	}
	293	}
	294	}
	295	}
[920]	296	}
	297	else {
	298	pszChar = szCmdLine;
	299	while (pszChar) {
	300	while (strchr(szCmdLine, '\"'))
	301	remove_first_occurence_of_character("\"", szCmdLine);
[1247]	302	if (*pszChar == ' ') { //test at every space for the end of the filename
[920]	303	*pszChar = '\0';
[1439]	304	ret = xDosQueryAppType(szCmdLine, &ulAppType);
[1394]	305	if (!ret) {
[1398]	306	strcat(szCmdLine, PCSZ_DOTEXE);
[1394]	307	break;
	308	}
	309	else {
[1398]	310	strcat(szCmdLine, PCSZ_DOTCOM);
[1439]	311	ret = xDosQueryAppType(szCmdLine, &ulAppType);
[1394]	312	if (ret) {
	313	offset = strrchr(szCmdLine, '.' );
	314	*offset = 0;
[1398]	315	strcat(szCmdLine, PCSZ_DOTCMD);
[1750]	316	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL)) {
[1394]	317	ret = 0;
	318	break;
	319	}
	320	else {
	321	*offset = 0;
[1398]	322	strcat(szCmdLine, PCSZ_DOTBAT);
[1750]	323	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL)) {
[1394]	324	ret = 0;
	325	break;
	326	}
	327	else {
	328	*offset = 0;
[1398]	329	strcat(szCmdLine, PCSZ_DOTBTM);
[1750]	330	if (!SearchPathForFile(PCSZ_PATH, szCmdLine, NULL)) {
[1394]	331	ret = 0;
	332	break;
	333	}
	334	}
	335	}
	336	}
	337	else
	338	break;
	339	}
[920]	340	}
	341	strcpy(szCmdLine, pszCmdLine_);
	342	pszChar++;
	343	}
	344	}
	345	if (!ret){
[1394]	346	BldQuotedFileName(pszNewCmdLine, szCmdLine);
	347	strcpy(szArgs, pszCmdLine_ + strlen(szCmdLine) - 3);
	348	if ((szArgs[0] == '\"' && szArgs[1] == ' ') \|\|
	349	!strstr(pszCmdLine_, "\\:" ) \|\|
	350	strchr(szArgs, '\"') == strrchr(szArgs, '\"'))
	351	remove_first_occurence_of_character("\"", szArgs);
	352	if (strchr(szArgs, '\"') != strrchr(szArgs, '\"'))
	353	saymsg(MB_OK, HWND_DESKTOP,
	354	NullStr,
	355	GetPString(IDS_QUOTESINARGSTEXT),
	356	pszCmdLine_);
	357	if (szArgs[0] != ' ')
	358	strcat(pszNewCmdLine, " ");
	359	strcat(pszNewCmdLine, szArgs);
[920]	360	}
[1248]	361	else { // fail if no extension can be found runemf2 requires one
[1394]	362	ret = saymsg(MB_OK,
	363	HWND_DESKTOP,
	364	NullStr,
	365	GetPString(IDS_PROGRAMNOTEXE2TEXT),
	366	pszCmdLine_);
	367	fCancelAction = TRUE;
	368	pszNewCmdLine = pszCmdLine_;
[920]	369	}
	370	}
[1699]	371	else { // file has a nonstandard extension for executable
[920]	372	pszChar = strrchr(szCmdLine, '.');
	373	while (pszChar && *pszChar !=' ') {
	374	pszChar++;
	375	}
	376	*pszChar = '\0';
	377	strcpy (szArgs, pszCmdLine_ + strlen(szCmdLine));
	378	while (strchr(szCmdLine, '\"'))
	379	remove_first_occurence_of_character("\"", szCmdLine);
	380	if ((szArgs[0] == '\"' && szArgs[1] == ' ') \|\|
	381	!strstr(pszCmdLine_, "\\:")\|\|
	382	strchr(szArgs, '\"') == strrchr(szArgs, '\"'))
	383	remove_first_occurence_of_character("\"", szArgs);
	384	if (strchr(szArgs, '\"') != strrchr(szArgs, '\"'))
	385	saymsg(MB_OK, HWND_DESKTOP,
	386	NullStr,
	387	GetPString(IDS_QUOTESINARGSTEXT),
	388	pszCmdLine_);
	389	BldQuotedFileName(pszNewCmdLine, szCmdLine);
[1750]	390	if (SearchPathForFile(PCSZ_PATH, szCmdLine, NULL)) {
[920]	391	ret = saymsg(MB_YESNO,
	392	HWND_DESKTOP,
	393	NullStr,
	394	GetPString(IDS_PROGRAMNOTFOUNDTEXT),
	395	pszCmdLine_);
	396	if (ret == MBID_YES) {
[1394]	397	if (szArgs[0] != ' ')
	398	strcat(pszNewCmdLine, " ");
	399	strcat(pszNewCmdLine, szArgs);
[920]	400	}
	401	else {
	402	fCancelAction = TRUE;
	403	pszWorkBuf = pszCmdLine_;
	404	}
	405	}
[1248]	406	else {
	407	ret = saymsg(MB_YESNOCANCEL,
[1394]	408	HWND_DESKTOP,
	409	NullStr,
	410	GetPString(IDS_PROGRAMNOTEXE3TEXT),
	411	pszCmdLine_, pszNewCmdLine);
	412	if (ret == MBID_YES){
	413	if (szArgs[0] != ' ')
	414	strcat(pszNewCmdLine, " ");
	415	strcat(pszNewCmdLine, szArgs);
	416	}
	417	if (ret == MBID_CANCEL){
	418	fCancelAction = TRUE;
	419	pszNewCmdLine = pszCmdLine_;
	420	}
[920]	421	}
	422	}
	423	}
[1039]	424	free(szArgs);
	425	free(szCmdLine);
[920]	426	return pszWorkBuf;
	427	}
	428
[907]	429	#pragma alloc_text(PATHUTIL,BldFullPathName)
	430	#pragma alloc_text(PATHUTIL,BldQuotedFileName)
	431	#pragma alloc_text(PATHUTIL,BldQuotedFullPathName)
[920]	432	#pragma alloc_text(PATHUTIL,NormalizeCmdLine)
[1761]	433	#pragma alloc_text(PATHUTIL,IsAbsolutePath)

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