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Overview
| Comment: | Fix test for buffer overrun in unixGettempname(). Fix for #3091. (CVS 5069) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
fc0ca647bd1c7c953bb0f3eb7d347157 |
| User & Date: | danielk1977 2008-04-30 08:56:10 |
Context
|
2008-04-30
| ||
| 15:55 | Improved option handling in speedtest8.c. Added -quiet and -priority options. Added reporting of total user and system time. (CVS 5070) check-in: aa59974e user: shane tags: trunk | |
| 08:56 | Fix test for buffer overrun in unixGettempname(). Fix for #3091. (CVS 5069) check-in: fc0ca647 user: danielk1977 tags: trunk | |
|
2008-04-29
| ||
| 15:38 | Zero the per-pager temporary space allocation to avoid warnings from valgrind. (CVS 5068) check-in: f854ae57 user: drh tags: trunk | |
Changes
Changes to src/os_unix.c.
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if( azDirs[i]==0 ) continue;
if( stat(azDirs[i], &buf) ) continue;
if( !S_ISDIR(buf.st_mode) ) continue;
if( access(azDirs[i], 07) ) continue;
zDir = azDirs[i];
break;
}
if( strlen(zDir) - sizeof(SQLITE_TEMP_FILE_PREFIX) - 17 <=0 ){
return SQLITE_ERROR;
}
do{
assert( pVfs->mxPathname==MAX_PATHNAME );
sqlite3_snprintf(nBuf-17, zBuf, "%s/"SQLITE_TEMP_FILE_PREFIX, zDir);
j = strlen(zBuf);
sqlite3_randomness(15, &zBuf[j]);
for(i=0; i<15; i++, j++){
zBuf[j] = (char)zChars[ ((unsigned char)zBuf[j])%(sizeof(zChars)-1) ];
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> > > > | > |
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if( azDirs[i]==0 ) continue;
if( stat(azDirs[i], &buf) ) continue;
if( !S_ISDIR(buf.st_mode) ) continue;
if( access(azDirs[i], 07) ) continue;
zDir = azDirs[i];
break;
}
/* Check that the output buffer is large enough for the temporary file
** name. If it is not, return SQLITE_ERROR.
*/
if( (strlen(zDir) + strlen(SQLITE_TEMP_FILE_PREFIX) + 17) >= nBuf ){
return SQLITE_ERROR;
}
do{
assert( pVfs->mxPathname==MAX_PATHNAME );
sqlite3_snprintf(nBuf-17, zBuf, "%s/"SQLITE_TEMP_FILE_PREFIX, zDir);
j = strlen(zBuf);
sqlite3_randomness(15, &zBuf[j]);
for(i=0; i<15; i++, j++){
zBuf[j] = (char)zChars[ ((unsigned char)zBuf[j])%(sizeof(zChars)-1) ];
|