mirror of
https://github.com/dborth/vbagx.git
synced 2024-11-25 12:06:53 +01:00
code cleanup - memory leaks, buffer overrruns, etc
This commit is contained in:
parent
874525235d
commit
497274c83d
@ -372,7 +372,7 @@ getentry (int entrycount, unsigned char dvdbuffer[])
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if (entrycount >= MAXDVDFILES)
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return 0;
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if (diroffset >= 2048)
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if (diroffset >= 2048 || diroffset < 0)
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return 0;
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/** Decode this entry **/
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@ -386,7 +386,7 @@ getentry (int entrycount, unsigned char dvdbuffer[])
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/* Check for wrap round - illegal in ISO spec,
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* but certain crap writers do it! */
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if ((diroffset + dvdbuffer[diroffset]) > 2048)
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if ((diroffset + dvdbuffer[diroffset]) > 2048 || (diroffset + dvdbuffer[diroffset]) < 0)
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return 0;
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if (*filenamelength)
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@ -394,7 +394,9 @@ getentry (int entrycount, unsigned char dvdbuffer[])
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memset (&fname, 0, 512);
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if (!IsJoliet) /*** Do ISO 9660 first ***/
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strcpy (fname, filename);
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{
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strncpy (fname, filename, 512);
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}
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else
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{ /*** The more tortuous unicode joliet entries ***/
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for (j = 0; j < (*filenamelength >> 1); j++)
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@ -439,17 +441,22 @@ getentry (int entrycount, unsigned char dvdbuffer[])
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if (rr != NULL)
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*rr = 0;
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browserList = (BROWSERENTRY *)realloc(browserList, (entrycount+1) * sizeof(BROWSERENTRY));
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if(!browserList) // failed to allocate required memory
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BROWSERENTRY * newBrowserList = (BROWSERENTRY *)realloc(browserList, (entrycount+1) * sizeof(BROWSERENTRY));
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if(!newBrowserList) // failed to allocate required memory
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{
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ResetBrowser();
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WaitPrompt("Out of memory: too many files!");
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return 0;
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}
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else
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{
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browserList = newBrowserList;
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}
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memset(&(browserList[entrycount]), 0, sizeof(BROWSERENTRY)); // clear the new entry
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strcpy (browserList[entrycount].filename, fname);
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strncpy (browserList[entrycount].filename, fname, MAXJOLIET);
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StripExt(tmpname, fname); // hide file extension
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strcpy (browserList[entrycount].displayname, tmpname);
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strncpy (browserList[entrycount].displayname, tmpname, MAXDISPLAY);
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memcpy (&offset32, &dvdbuffer[diroffset + EXTENT], 4);
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@ -278,13 +278,13 @@ ParseDirectory()
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WaitPrompt(msg);
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// if we can't open the dir, open root dir
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sprintf(fulldir,"%s",rootdir);
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sprintf(browser.dir,"/");
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dir = diropen(browser.dir);
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dir = diropen(rootdir);
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if (dir == NULL)
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{
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sprintf(msg, "Error opening %s", fulldir);
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sprintf(msg, "Error opening %s", rootdir);
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WaitPrompt(msg);
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return 0;
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}
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@ -297,14 +297,19 @@ ParseDirectory()
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{
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if(strcmp(filename,".") != 0)
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{
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browserList = (BROWSERENTRY *)realloc(browserList, (entryNum+1) * sizeof(BROWSERENTRY));
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BROWSERENTRY * newBrowserList = (BROWSERENTRY *)realloc(browserList, (entryNum+1) * sizeof(BROWSERENTRY));
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if(!browserList) // failed to allocate required memory
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if(!newBrowserList) // failed to allocate required memory
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{
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ResetBrowser();
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WaitPrompt("Out of memory: too many files!");
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entryNum = 0;
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break;
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}
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else
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{
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browserList = newBrowserList;
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}
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memset(&(browserList[entryNum]), 0, sizeof(BROWSERENTRY)); // clear the new entry
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strncpy(browserList[entryNum].filename, filename, MAXJOLIET);
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@ -468,14 +468,19 @@ int SzParse(char * filepath, int method)
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if (SzF->IsDirectory)
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continue;
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browserList = (BROWSERENTRY *)realloc(browserList, (SzJ+1) * sizeof(BROWSERENTRY));
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BROWSERENTRY * newBrowserList = (BROWSERENTRY *)realloc(browserList, (SzJ+1) * sizeof(BROWSERENTRY));
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if(!browserList) // failed to allocate required memory
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if(!newBrowserList) // failed to allocate required memory
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{
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ResetBrowser();
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WaitPrompt("Out of memory: too many files!");
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nbfiles = 0;
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break;
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}
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else
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{
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browserList = newBrowserList;
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}
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memset(&(browserList[SzJ]), 0, sizeof(BROWSERENTRY)); // clear the new entry
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// parse information about this file to the dvd file list structure
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@ -44,8 +44,9 @@ void UpdateCheck()
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snprintf(url, 128, "http://vba-wii.googlecode.com/svn/trunk/update.xml");
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AllocSaveBuffer ();
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retval = http_request(url, NULL, (u8 *)savebuffer, SAVEBUFFERSIZE);
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u8 * tmpbuffer = (u8 *)malloc(32768);
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memset(tmpbuffer, 0, 32768);
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retval = http_request(url, NULL, tmpbuffer, 32768);
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memset(url, 0, 128);
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if (retval)
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@ -53,39 +54,50 @@ void UpdateCheck()
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mxml_node_t *xml;
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mxml_node_t *item;
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xml = mxmlLoadString(NULL, (char *)savebuffer, MXML_TEXT_CALLBACK);
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xml = mxmlLoadString(NULL, (char *)tmpbuffer, MXML_TEXT_CALLBACK);
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// check settings version
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item = mxmlFindElement(xml, xml, "app", "version", NULL, MXML_DESCEND);
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if(item) // a version entry exists
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if(xml)
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{
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char * version = (char *)mxmlElementGetAttr(item, "version");
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int verMajor = version[0] - '0';
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int verMinor = version[2] - '0';
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int verPoint = version[4] - '0';
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int curMajor = APPVERSION[0] - '0';
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int curMinor = APPVERSION[2] - '0';
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int curPoint = APPVERSION[4] - '0';
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// check that the versioning is valid and is a newer version
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if((verMajor >= 0 && verMajor <= 9 &&
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verMinor >= 0 && verMinor <= 9 &&
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verPoint >= 0 && verPoint <= 9) &&
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(verMajor > curMajor ||
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verMinor > curMinor ||
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verPoint > curPoint))
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// check settings version
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item = mxmlFindElement(xml, xml, "app", "version", NULL, MXML_DESCEND);
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if(item) // a version entry exists
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{
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item = mxmlFindElement(xml, xml, "file", NULL, NULL, MXML_DESCEND);
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if(item)
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const char * version = mxmlElementGetAttr(item, "version");
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if(version)
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{
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snprintf(updateURL, 128, "%s", mxmlElementGetAttr(item, "url"));
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updateFound = true;
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int verMajor = version[0] - '0';
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int verMinor = version[2] - '0';
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int verPoint = version[4] - '0';
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int curMajor = APPVERSION[0] - '0';
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int curMinor = APPVERSION[2] - '0';
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int curPoint = APPVERSION[4] - '0';
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// check that the versioning is valid and is a newer version
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if((verMajor >= 0 && verMajor <= 9 &&
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verMinor >= 0 && verMinor <= 9 &&
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verPoint >= 0 && verPoint <= 9) &&
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(verMajor > curMajor ||
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verMinor > curMinor ||
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verPoint > curPoint))
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{
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item = mxmlFindElement(xml, xml, "file", NULL, NULL, MXML_DESCEND);
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if(item)
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{
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const char * tmp = mxmlElementGetAttr(item, "url");
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if(tmp)
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{
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snprintf(updateURL, 128, "%s", tmp);
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updateFound = true;
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}
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}
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}
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}
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}
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mxmlDelete(xml);
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}
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}
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FreeSaveBuffer();
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free(tmpbuffer);
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}
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}
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@ -128,7 +140,7 @@ bool DownloadUpdate()
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retval = http_request(updateURL, hfile, NULL, (1024*1024*5));
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fclose (hfile);
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}
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ShowAction("Unzipping...");
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ShowAction("Installing...");
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bool unzipResult = unzipArchive(updateFile, (char *)"sd:/");
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remove(updateFile); // delete update file
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@ -22,18 +22,16 @@
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#include "filesel.h"
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#include "input.h"
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static char prefscomment[2][32];
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/****************************************************************************
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* Prepare Preferences Data
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*
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* This sets up the save buffer for saving.
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***************************************************************************/
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static mxml_node_t *xml;
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static mxml_node_t *data;
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static mxml_node_t *section;
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static mxml_node_t *item;
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static mxml_node_t *elem;
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static mxml_node_t *xml = NULL;
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static mxml_node_t *data = NULL;
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static mxml_node_t *section = NULL;
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static mxml_node_t *item = NULL;
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static mxml_node_t *elem = NULL;
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static char temp[20];
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@ -120,6 +118,7 @@ preparePrefsData (int method)
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memcpy (savebuffer, saveicon, offset);
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// And the comments
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char prefscomment[2][32];
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memset(prefscomment, 0, 64);
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sprintf (prefscomment[0], "%s Prefs", APPNAME);
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sprintf (prefscomment[1], "Preferences");
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@ -184,19 +183,31 @@ static void loadXMLSetting(char * var, const char * name, int maxsize)
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{
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item = mxmlFindElement(xml, xml, "setting", "name", name, MXML_DESCEND);
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if(item)
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snprintf(var, maxsize, "%s", mxmlElementGetAttr(item, "value"));
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{
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const char * tmp = mxmlElementGetAttr(item, "value");
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if(tmp)
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snprintf(var, maxsize, "%s", tmp);
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}
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}
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static void loadXMLSetting(int * var, const char * name)
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{
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item = mxmlFindElement(xml, xml, "setting", "name", name, MXML_DESCEND);
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if(item)
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*var = atoi(mxmlElementGetAttr(item, "value"));
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{
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const char * tmp = mxmlElementGetAttr(item, "value");
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if(tmp)
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*var = atoi(tmp);
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}
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}
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static void loadXMLSetting(float * var, const char * name)
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{
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item = mxmlFindElement(xml, xml, "setting", "name", name, MXML_DESCEND);
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if(item)
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*var = atof(mxmlElementGetAttr(item, "value"));
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{
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const char * tmp = mxmlElementGetAttr(item, "value");
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if(tmp)
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*var = atof(tmp);
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}
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}
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/****************************************************************************
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@ -216,7 +227,11 @@ static void loadXMLController(unsigned int controller[], const char * name)
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{
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elem = mxmlFindElement(item, xml, "button", "number", toStr(i), MXML_DESCEND);
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if(elem)
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controller[i] = atoi(mxmlElementGetAttr(elem, "assignment"));
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{
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const char * tmp = mxmlElementGetAttr(elem, "assignment");
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if(tmp)
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controller[i] = atoi(tmp);
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}
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}
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}
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}
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@ -230,80 +245,89 @@ static void loadXMLController(unsigned int controller[], const char * name)
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static bool
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decodePrefsData (int method)
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{
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bool result = false;
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int offset = 0;
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// skip save icon and comments for Memory Card saves
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if(method == METHOD_MC_SLOTA || method == METHOD_MC_SLOTB)
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{
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offset = sizeof (saveicon);
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offset += 64; // sizeof prefscomment
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offset += 64; // sizeof comments
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}
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xml = mxmlLoadString(NULL, (char *)savebuffer+offset, MXML_TEXT_CALLBACK);
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// check settings version
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char * version;
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item = mxmlFindElement(xml, xml, "file", "version", NULL, MXML_DESCEND);
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if(item) // a version entry exists
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version = (char *)mxmlElementGetAttr(item, "version");
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else // version # not found, must be invalid
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return false;
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if(xml)
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{
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// check settings version
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item = mxmlFindElement(xml, xml, "file", "version", NULL, MXML_DESCEND);
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if(item) // a version entry exists
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{
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const char * version = mxmlElementGetAttr(item, "version");
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// this code assumes version in format X.X.X
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// XX.X.X, X.XX.X, or X.X.XX will NOT work
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int verMajor = version[0] - '0';
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int verMinor = version[2] - '0';
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int verPoint = version[4] - '0';
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int curMajor = APPVERSION[0] - '0';
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int curMinor = APPVERSION[2] - '0';
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int curPoint = APPVERSION[4] - '0';
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if(version)
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{
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// this code assumes version in format X.X.X
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// XX.X.X, X.XX.X, or X.X.XX will NOT work
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int verMajor = version[0] - '0';
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int verMinor = version[2] - '0';
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int verPoint = version[4] - '0';
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int curMajor = APPVERSION[0] - '0';
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int curMinor = APPVERSION[2] - '0';
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int curPoint = APPVERSION[4] - '0';
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// first we'll check that the versioning is valid
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if(!(verMajor >= 0 && verMajor <= 9 &&
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verMinor >= 0 && verMinor <= 9 &&
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verPoint >= 0 && verPoint <= 9))
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return false;
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// first we'll check that the versioning is valid
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if(!(verMajor >= 0 && verMajor <= 9 &&
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verMinor >= 0 && verMinor <= 9 &&
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verPoint >= 0 && verPoint <= 9))
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result = false;
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else if(verPoint < 4 && verMajor == 1) // less than version 1.0.4
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result = false; // reset settings
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else if(verMajor > curMajor || verMinor > curMinor || verPoint > curPoint) // some future version
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result = false; // reset settings
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else
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result = true;
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}
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}
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if(verPoint < 4 && verMajor == 1) // less than version 1.0.4
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return false; // reset settings
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else if(verMajor > curMajor || verMinor > curMinor || verPoint > curPoint) // some future version
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return false; // reset settings
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if(result)
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{
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// File Settings
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// File Settings
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loadXMLSetting(&GCSettings.AutoLoad, "AutoLoad");
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loadXMLSetting(&GCSettings.AutoSave, "AutoSave");
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loadXMLSetting(&GCSettings.LoadMethod, "LoadMethod");
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loadXMLSetting(&GCSettings.SaveMethod, "SaveMethod");
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loadXMLSetting(GCSettings.LoadFolder, "LoadFolder", sizeof(GCSettings.LoadFolder));
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loadXMLSetting(GCSettings.SaveFolder, "SaveFolder", sizeof(GCSettings.SaveFolder));
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//loadXMLSetting(GCSettings.CheatFolder, "CheatFolder", sizeof(GCSettings.CheatFolder));
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loadXMLSetting(&GCSettings.VerifySaves, "VerifySaves");
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loadXMLSetting(&GCSettings.AutoLoad, "AutoLoad");
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loadXMLSetting(&GCSettings.AutoSave, "AutoSave");
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loadXMLSetting(&GCSettings.LoadMethod, "LoadMethod");
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loadXMLSetting(&GCSettings.SaveMethod, "SaveMethod");
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loadXMLSetting(GCSettings.LoadFolder, "LoadFolder", sizeof(GCSettings.LoadFolder));
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loadXMLSetting(GCSettings.SaveFolder, "SaveFolder", sizeof(GCSettings.SaveFolder));
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//loadXMLSetting(GCSettings.CheatFolder, "CheatFolder", sizeof(GCSettings.CheatFolder));
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loadXMLSetting(&GCSettings.VerifySaves, "VerifySaves");
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// Network Settings
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// Network Settings
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loadXMLSetting(GCSettings.smbip, "smbip", sizeof(GCSettings.smbip));
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loadXMLSetting(GCSettings.smbshare, "smbshare", sizeof(GCSettings.smbshare));
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loadXMLSetting(GCSettings.smbuser, "smbuser", sizeof(GCSettings.smbuser));
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loadXMLSetting(GCSettings.smbpwd, "smbpwd", sizeof(GCSettings.smbpwd));
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loadXMLSetting(GCSettings.smbip, "smbip", sizeof(GCSettings.smbip));
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loadXMLSetting(GCSettings.smbshare, "smbshare", sizeof(GCSettings.smbshare));
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loadXMLSetting(GCSettings.smbuser, "smbuser", sizeof(GCSettings.smbuser));
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loadXMLSetting(GCSettings.smbpwd, "smbpwd", sizeof(GCSettings.smbpwd));
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// Emulation Settings
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// Emulation Settings
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loadXMLSetting(&GCSettings.Zoom, "Zoom");
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loadXMLSetting(&GCSettings.ZoomLevel, "ZoomLevel");
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loadXMLSetting(&GCSettings.render, "render");
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loadXMLSetting(&GCSettings.widescreen, "widescreen");
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loadXMLSetting(&GCSettings.Zoom, "Zoom");
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loadXMLSetting(&GCSettings.ZoomLevel, "ZoomLevel");
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loadXMLSetting(&GCSettings.render, "render");
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loadXMLSetting(&GCSettings.widescreen, "widescreen");
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// Controller Settings
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// Controller Settings
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loadXMLController(gcpadmap, "gcpadmap");
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loadXMLController(wmpadmap, "wmpadmap");
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loadXMLController(ccpadmap, "ccpadmap");
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loadXMLController(ncpadmap, "ncpadmap");
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}
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mxmlDelete(xml);
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}
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loadXMLController(gcpadmap, "gcpadmap");
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loadXMLController(wmpadmap, "wmpadmap");
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loadXMLController(ccpadmap, "ccpadmap");
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loadXMLController(ncpadmap, "ncpadmap");
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mxmlDelete(xml);
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return true;
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return result;
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}
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/****************************************************************************
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