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pcsx2/plugins/CDVDlinuz/Src/ini.c

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/* ini.c
* Copyright (C) 2002-2005 PCSX2 Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* PCSX2 members can be contacted through their website at www.pcsx2.net.
*/
#include <stddef.h> // NULL
#include <stdio.h> // sprintf()
#include "logfile.h"
#include "actualfile.h"
#include "ini.h"
const char INIext[] = ".ini";
const char INInewext[] = ".new";
// Returns: position where new extensions should be added.
int INIRemoveExt(char *argname, char *tempname) {
int i;
int j;
int k;
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: RemoveExt(%s)", argname);
#endif /* VERBOSE_FUNCTION_INI */
i = 0;
while((i <= INIMAXLEN) && (*(argname + i) != 0)) {
*(tempname + i) = *(argname + i);
i++;
} // ENDWHILE- Copying the argument name into a temporary area;
*(tempname + i) = 0; // And 0-terminate
k = i;
k--;
j = 0;
while((j <= INIMAXLEN) && (INIext[j] != 0)) j++;
j--;
while((j >= 0) && (*(tempname + k) == INIext[j])) {
k--;
j--;
} // ENDWHILE- Comparing the ending characters to the INI ext.
if(j < 0) {
k++;
i = k;
*(tempname + i) = 0; // 0-terminate, cutting off ".ini"
} // ENDIF- Do we have a match? Then remove the end chars.
return(i);
} // END INIRemoveExt()
void INIAddInExt(char *tempname, int temppos) {
int i;
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: AddInExt(%s, %i)", tempname, temppos);
#endif /* VERBOSE_FUNCTION_INI */
i = 0;
while((i + temppos < INIMAXLEN) && (INIext[i] != 0)) {
*(tempname + temppos + i) = INIext[i];
i++;
} // ENDWHILE- Attaching extenstion to filename
*(tempname + temppos + i) = 0; // And 0-terminate
} // END INIAddInExt()
void INIAddOutExt(char *tempname, int temppos) {
int i;
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: AddOutExt(%s, %i)", tempname, temppos);
#endif /* VERBOSE_FUNCTION_INI */
i = 0;
while((i + temppos < INIMAXLEN) && (INInewext[i] != 0)) {
*(tempname + temppos + i) = INInewext[i];
i++;
} // ENDWHILE- Attaching extenstion to filename
*(tempname + temppos + i) = 0; // And 0-terminate
} // END INIAddInExt()
// Returns number of bytes read to get line (0 means end-of-file)
int INIReadLine(ACTUALHANDLE infile, char *buffer) {
int charcount;
int i;
char tempin[2];
int retflag;
int retval;
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: ReadLine()");
#endif /* VERBOSE_FUNCTION_INI */
charcount = 0;
i = 0;
tempin[1] = 0;
retflag = 0;
while((i < INIMAXLEN) && (retflag < 2)) {
retval = ActualFileRead(infile, 1, tempin);
charcount++;
if(retval != 1) {
retflag = 2;
charcount--;
} else if(tempin[0] == '\n') {
retflag = 2;
} else if(tempin[0] >= ' ') {
*(buffer + i) = tempin[0];
i++;
} // ENDLONGIF- How do we react to the next character?
} // ENDWHILE- Loading up on characters until an End-of-Line appears
*(buffer + i) = 0; // And 0-terminate
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: Line: %s", buffer);
#endif /* VERBOSE_FUNCTION_INI */
return(charcount);
} // END INIReadLine()
// Note: Do we need to back-skip a char if something other \n follows \r?
// Returns: number of bytes to get to start of section (or -1)
int INIFindSection(ACTUALHANDLE infile, char *section) {
int charcount;
int i;
int retflag;
int retval;
char scanbuffer[INIMAXLEN+1];
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: FindSection(%s)", section);
#endif /* VERBOSE_FUNCTION_INI */
charcount = 0;
retflag = 0;
while(retflag == 0) {
retval = INIReadLine(infile, scanbuffer);
if(retval == 0) return(-1); // EOF? Stop here.
if(scanbuffer[0] == '[') {
i = 0;
while((i < INIMAXLEN) &&
(*(section + i) != 0) &&
(*(section + i) == scanbuffer[i + 1])) i++;
if((i < INIMAXLEN - 2) && (*(section + i) == 0)) {
if((scanbuffer[i + 1] == ']') && (scanbuffer[i + 2] == 0)) {
retflag = 1;
} // ENDIF- End marks look good? Return successful.
} // ENDIF- Do we have a section match?
} // ENDIF- Does this look like a section header?
if(retflag == 0) charcount += retval;
} // ENDWHILE- Scanning lines for the correct [Section] header.
return(charcount);
} // END INIFindSection()
// Returns: number of bytes to get to start of keyword (or -1)
int INIFindKeyword(ACTUALHANDLE infile, char *keyword, char *buffer) {
int charcount;
int i;
int j;
int retflag;
int retval;
char scanbuffer[INIMAXLEN+1];
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: FindKeyword(%s)", keyword);
#endif /* VERBOSE_FUNCTION_INI */
charcount = 0;
retflag = 0;
while(retflag == 0) {
retval = INIReadLine(infile, scanbuffer);
if(retval == 0) return(-1); // EOF? Stop here.
if(scanbuffer[0] == '[') return(-1); // New section? Stop here.
i = 0;
while((i < INIMAXLEN) &&
(*(keyword + i) != 0) &&
(*(keyword + i) == scanbuffer[i])) i++;
if((i < INIMAXLEN - 2) && (*(keyword + i) == 0)) {
if(scanbuffer[i] == '=') {
retflag = 1;
if(buffer != NULL) {
i++;
j = 0;
while((i < INIMAXLEN) && (scanbuffer[i] != 0)) {
*(buffer + j) = scanbuffer[i];
i++;
j++;
} // ENDWHILE- Copying the value out to the outbound buffer.
*(buffer + j) = 0; // And 0-terminate.
} // ENDIF- Return the value as well?
} // ENDIF- End marks look good? Return successful.
} // ENDIF- Do we have a section match?
if(retflag == 0) charcount += retval;
} // ENDWHILE- Scanning lines for the correct [Section] header.
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: Value: %s", buffer);
#endif /* VERBOSE_FUNCTION_INI */
return(charcount);
} // END INIFindKeyWord()
// Returns: number of bytes left to write... (from charcount back)
int INICopy(ACTUALHANDLE infile, ACTUALHANDLE outfile, int charcount) {
char buffer[4096];
int i;
int chunk;
int retval;
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: Copy(%i)", charcount);
#endif /* VERBOSE_FUNCTION_INI */
i = charcount;
chunk = 4096;
if(i < chunk) chunk = i;
while(chunk > 0) {
retval = ActualFileRead(infile, chunk, buffer);
if(retval <= 0) return(i); // Trouble? Stop here.
if(retval < chunk) chunk = retval; // Short block? Note it.
retval = ActualFileWrite(outfile, chunk, buffer);
if(retval <= 0) return(i); // Trouble? Stop here.
i -= retval;
if(retval < chunk) return(i); // Short block written? Stop here.
chunk = 4096;
if(i < chunk) chunk = i;
} // ENDWHILE- Copying a section of file across, one chunk at a time.
return(0);
} // END INICopyToPos()
int INISaveString(char *file, char *section, char *keyword, char *value) {
char inname[INIMAXLEN+1];
char outname[INIMAXLEN+1];
int filepos;
ACTUALHANDLE infile;
ACTUALHANDLE outfile;
int i;
int retval;
char templine[INIMAXLEN+1];
if(file == NULL) return(-1);
if(section == NULL) return(-1);
if(keyword == NULL) return(-1);
if(value == NULL) return(-1);
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: SaveString(%s, %s, %s, %s)",
file, section, keyword, value);
#endif /* VERBOSE_FUNCTION_INI */
filepos = INIRemoveExt(file, inname);
for(i = 0; i <= filepos; i++) outname[i] = inname[i];
INIAddInExt(inname, filepos);
INIAddOutExt(outname, filepos);
filepos = 0;
infile = ActualFileOpenForRead(inname);
if(infile == ACTUALHANDLENULL) {
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: creating new file");
#endif /* VERBOSE_FUNCTION_INI */
outfile = ActualFileOpenForWrite(inname);
if(outfile == ACTUALHANDLENULL) return(-1); // Just a bad name? Abort.
sprintf(templine, "[%s]\r\n", section);
i = 0;
while((i < INIMAXLEN) && (templine[i] != 0)) i++;
retval = ActualFileWrite(outfile, i, templine);
if(retval < i) {
ActualFileClose(outfile);
outfile = ACTUALHANDLENULL;
ActualFileDelete(inname);
return(-1);
} // ENDIF- Trouble writing it out? Abort.
sprintf(templine, "%s=%s\r\n", keyword, value);
i = 0;
while((i < INIMAXLEN) && (templine[i] != 0)) i++;
retval = ActualFileWrite(outfile, i, templine);
ActualFileClose(outfile);
outfile = ACTUALHANDLENULL;
if(retval < i) {
ActualFileDelete(inname);
return(-1);
} // ENDIF- Trouble writing it out? Abort.
return(0);
} // ENDIF- No input file? Create a brand new .ini file then.
retval = INIFindSection(infile, section);
if(retval < 0) {
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: creating new section");
#endif /* VERBOSE_FUNCTION_INI */
outfile = ActualFileOpenForWrite(outname);
if(outfile == ACTUALHANDLENULL) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
return(-1);
} // ENDIF- Couldn't open a temp file? Abort
ActualFileSeek(infile, 0); // Move ini to beginning of file...
INICopy(infile, outfile, 0x0FFFFFFF); // Copy the whole file out...
sprintf(templine, "\r\n[%s]\r\n", section);
i = 0;
while((i < INIMAXLEN) && (templine[i] != 0)) i++;
retval = ActualFileWrite(outfile, i, templine);
if(retval < i) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
ActualFileClose(outfile);
outfile = ACTUALHANDLENULL;
ActualFileDelete(outname);
return(-1);
} // ENDIF- Trouble writing it out? Abort.
sprintf(templine, "%s=%s\r\n", keyword, value);
i = 0;
while((i < INIMAXLEN) && (templine[i] != 0)) i++;
retval = ActualFileWrite(outfile, i, templine);
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
ActualFileClose(outfile);
outfile = ACTUALHANDLENULL;
if(retval < i) {
ActualFileDelete(outname);
return(-1);
} // ENDIF- Trouble writing it out? Abort.
ActualFileDelete(inname);
ActualFileRename(outname, inname);
return(0);
} // ENDIF- Couldn't find the section? Make a new one!
filepos = retval;
ActualFileSeek(infile, filepos);
filepos += INIReadLine(infile, templine); // Get section line's byte count
retval = INIFindKeyword(infile, keyword, NULL);
if(retval < 0) {
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: creating new keyword");
#endif /* VERBOSE_FUNCTION_INI */
ActualFileSeek(infile, filepos);
retval = INIReadLine(infile, templine);
i = 0;
while((i < INIMAXLEN) && (templine[i] != 0) && (templine[i] != '=')) i++;
while((retval > 0) && (templine[i] == '=')) {
filepos += retval;
retval = INIReadLine(infile, templine);
i = 0;
while((i < INIMAXLEN) && (templine[i] != 0) && (templine[i] != '=')) i++;
} // ENDWHILE- skimming to the bottom of the section
outfile = ActualFileOpenForWrite(outname);
if(outfile == ACTUALHANDLENULL) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
return(-1);
} // ENDIF- Couldn't open a temp file? Abort
ActualFileSeek(infile, 0);
retval = INICopy(infile, outfile, filepos);
if(retval > 0) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
ActualFileClose(outfile);
outfile = ACTUALHANDLENULL;
ActualFileDelete(outname);
return(-1);
} // ENDIF- Trouble writing everything up to keyword? Abort.
sprintf(templine, "%s=%s\r\n", keyword, value);
i = 0;
while((i < INIMAXLEN) && (templine[i] != 0)) i++;
retval = ActualFileWrite(outfile, i, templine);
if(retval < i) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
ActualFileClose(outfile);
outfile = ACTUALHANDLENULL;
ActualFileDelete(outname);
return(-1);
} // ENDIF- Trouble writing it out? Abort.
} else {
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: replacing keyword");
#endif /* VERBOSE_FUNCTION_INI */
filepos += retval; // Position just before old version of keyword
outfile = ActualFileOpenForWrite(outname);
if(outfile == ACTUALHANDLENULL) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
return(-1);
} // ENDIF- Couldn't open a temp file? Abort
ActualFileSeek(infile, 0);
retval = INICopy(infile, outfile, filepos);
if(retval > 0) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
ActualFileClose(outfile);
outfile = ACTUALHANDLENULL;
ActualFileDelete(outname);
return(-1);
} // ENDIF- Trouble writing everything up to keyword? Abort.
INIReadLine(infile, templine); // Read past old keyword/value...
// Replace with new value
sprintf(templine, "%s=%s\r\n", keyword, value);
i = 0;
while((i < INIMAXLEN) && (templine[i] != 0)) i++;
retval = ActualFileWrite(outfile, i, templine);
if(retval < i) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
ActualFileClose(outfile);
outfile = ACTUALHANDLENULL;
ActualFileDelete(outname);
return(-1);
} // ENDIF- Trouble writing it out? Abort.
} // ENDIF- Need to add a new keyword?
INICopy(infile, outfile, 0xFFFFFFF); // Write out rest of file
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
ActualFileClose(outfile);
outfile = ACTUALHANDLENULL;
ActualFileDelete(inname);
ActualFileRename(outname, inname);
return(0);
} // END INISaveString()
int INILoadString(char *file, char *section, char *keyword, char *buffer) {
char inname[INIMAXLEN+1];
int filepos;
ACTUALHANDLE infile;
int retval;
if(file == NULL) return(-1);
if(section == NULL) return(-1);
if(keyword == NULL) return(-1);
if(buffer == NULL) return(-1);
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: LoadString(%s, %s, %s)",
file, section, keyword);
#endif /* VERBOSE_FUNCTION_INI */
filepos = INIRemoveExt(file, inname);
INIAddInExt(inname, filepos);
filepos = 0;
infile = ActualFileOpenForRead(inname);
if(infile == ACTUALHANDLENULL) return(-1);
retval = INIFindSection(infile, section);
if(retval < 0) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
return(-1);
} // ENDIF- Didn't find it? Abort.
retval = INIFindKeyword(infile, keyword, buffer);
if(retval < 0) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
return(-1);
} // ENDIF- Didn't find it? Abort.
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
return(0);
} // END INILoadString()
int INIRemove(char *file, char *section, char *keyword) {
char inname[INIMAXLEN+1];
char outname[INIMAXLEN+1];
int filepos;
ACTUALHANDLE infile;
ACTUALHANDLE outfile;
char templine[INIMAXLEN+1];
int i;
int retval;
if(file == NULL) return(-1);
if(section == NULL) return(-1);
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: Remove(%s, %s, %s)",
file, section, keyword);
#endif /* VERBOSE_FUNCTION_INI */
filepos = INIRemoveExt(file, inname);
for(i = 0; i <= filepos; i++) outname[i] = inname[i];
INIAddInExt(inname, filepos);
INIAddOutExt(outname, filepos);
infile = ActualFileOpenForRead(inname);
if(infile == ACTUALHANDLENULL) return(-1);
retval = INIFindSection(infile, section);
if(retval == -1) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
return(-1);
} // ENDIF- Couldn't even find the section? Abort
filepos = retval;
if(keyword == NULL) {
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: removing section");
#endif /* VERBOSE_FUNCTION_INI */
outfile = ActualFileOpenForWrite(outname);
if(outfile == ACTUALHANDLENULL) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
return(-1);
} // ENDIF- Couldn't open a temp file? Abort
ActualFileSeek(infile, 0);
retval = INICopy(infile, outfile, filepos);
if(retval > 0) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
ActualFileClose(outfile);
outfile = ACTUALHANDLENULL;
ActualFileDelete(outname);
return(-1);
} // ENDIF- Trouble writing everything up to the section? Abort.
templine[0] = 0;
retval = 1;
while((retval > 0) && (templine[0] != '[')) {
retval = INIReadLine(infile, templine);
} // ENDWHILE- Read to the start of the next section... or EOF.
if(templine[0] == '[') {
i = 0;
while((i < INIMAXLEN) && (templine[i] != 0)) i++;
retval = ActualFileWrite(outfile, i, templine);
if(retval < i) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
ActualFileClose(outfile);
outfile = ACTUALHANDLENULL;
ActualFileDelete(outname);
return(-1);
} // ENDIF- Trouble writing it out? Abort.
} // ENDIF- Are there other sections after this one? Save them then.
} else {
filepos = retval;
ActualFileSeek(infile, filepos);
filepos += INIReadLine(infile, templine); // Get section line's byte count
retval = INIFindKeyword(infile, keyword, NULL);
if(retval == -1) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
return(-1);
} // ENDIF- Couldn't find the keyword? Abort
filepos += retval;
#ifdef VERBOSE_FUNCTION_INI
PrintLog("CDVDiso ini: removing keyword");
#endif /* VERBOSE_FUNCTION_INI */
outfile = ActualFileOpenForWrite(outname);
if(outfile == ACTUALHANDLENULL) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
return(-1);
} // ENDIF- Couldn't open a temp file? Abort
ActualFileSeek(infile, 0);
retval = INICopy(infile, outfile, filepos);
if(retval > 0) {
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
ActualFileClose(outfile);
outfile = ACTUALHANDLENULL;
ActualFileDelete(outname);
return(-1);
} // ENDIF- Trouble writing everything up to keyword? Abort.
INIReadLine(infile, templine); // Read (and discard) the keyword line
} // ENDIF- Wipe out the whole section? Or just a keyword?
INICopy(infile, outfile, 0xFFFFFFF); // Write out rest of file
ActualFileClose(infile);
infile = ACTUALHANDLENULL;
ActualFileClose(outfile);
outfile = ACTUALHANDLENULL;
ActualFileDelete(inname);
ActualFileRename(outname, inname);
return(0);
} // END INIRemove()
int INISaveUInt(char *file, char *section, char *keyword, unsigned int value) {
char numvalue[INIMAXLEN+1];
sprintf(numvalue, "%u", value);
return(INISaveString(file, section, keyword, numvalue));
} // END INISaveUInt()
int INILoadUInt(char *file, char *section, char *keyword, unsigned int *buffer) {
char numvalue[INIMAXLEN+1];
int retval;
unsigned int value;
// unsigned int sign; // Not needed in unsigned numbers
int pos;
if(buffer == NULL) return(-1);
*(buffer) = 0;
retval = INILoadString(file, section, keyword, numvalue);
if(retval < 0) return(retval);
value = 0;
// sign = 1; // Start positive
pos = 0;
// Note: skip leading spaces? (Shouldn't have to, I hope)
// if(numvalue[pos] == '-') {
// pos++;
// sign = -1;
// } // ENDIF- Negative sign check
while((pos < INIMAXLEN) && (numvalue[pos] != 0)) {
if(value > (0xFFFFFFFF / 10)) return(-1); // Overflow?
if((numvalue[pos] >= '0') && (numvalue[pos] <= '9')) {
value *= 10;
value += numvalue[pos] - '0';
pos++;
} else {
numvalue[pos] = 0;
} // ENDIF- Add a digit in? Or stop searching for digits?
} // ENDWHILE- Adding digits of info to our ever-increasing value
// value *= sign
*(buffer) = value;
return(0);
} // END INILoadUInt()
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