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Add the ability to limit filenames to 8+3 using the

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SQLITE_ENABLE_8_3_NAMES compile-time option together with a URI
parameter of "8_3_names=1".

FossilOrigin-Name: 96d609856025919571f781207dfa6a24b1732e8d
This commit is contained in:
drh
2011-05-17 20:36:21 +00:00
parent bd69559bfd
commit 81cc516352
11 changed files with 271 additions and 26 deletions
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26
src/util.c
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@@ -1146,3 +1146,29 @@ int sqlite3AbsInt32(int x){
if( x==(int)0x80000000 ) return 0x7fffffff;
return -x;
}
#ifdef SQLITE_ENABLE_8_3_NAMES
/*
** If SQLITE_ENABLE_8_3_NAME is set at compile-time and if the database
** filename in zBaseFilename is a URI with the "8_3_names=1" parameter and
** if filename in z[] has a suffix (a.k.a. "extension") that is longer than
** three characters, then shorten the suffix on z[] to be the last three
** characters of the original suffix.
**
** Examples:
**
** test.db-journal => test.nal
** test.db-wal => test.wal
** test.db-shm => test.shm
*/
void sqlite3FileSuffix3(const char *zBaseFilename, char *z){
const char *zOk;
zOk = sqlite3_uri_parameter(zBaseFilename, "8_3_names");
if( zOk && sqlite3GetBoolean(zOk) ){
int i, sz;
sz = sqlite3Strlen30(z);
for(i=sz-1; i>0 && z[i]!='/' && z[i]!='\\' && z[i]!='.'; i--){}
if( z[i]=='.' && sz>i+4 ) memcpy(&z[i+1], &z[sz-3], 4);
}
}
#endif