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Overview
| Comment: | Return a suitable error message if the mode= argument to a URI specifies a higher mode than what is allowed by context. Other minor cleanups for the URI parsing logic. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
d9bc1c7fe0ca5f6973a85827330958f4 |
| User & Date: | drh 2011-05-09 19:20:17 |
Context
|
2011-05-10
| ||
| 17:31 | Add experimental support for read-only connections to WAL databases. check-in: bb59f986 user: dan tags: wal-readonly | |
| 10:17 | Add new documentation keywords to the sqlite3_vfs description. check-in: ad3389a9 user: drh tags: trunk | |
|
2011-05-09
| ||
| 19:20 | Return a suitable error message if the mode= argument to a URI specifies a higher mode than what is allowed by context. Other minor cleanups for the URI parsing logic. check-in: d9bc1c7f user: drh tags: trunk | |
|
2011-05-07
| ||
| 18:40 | Set the sqlite3.mallocFailed flag if sqlite3ParseUri fails with SQLITE_NOMEM. check-in: ca3797d4 user: drh tags: trunk | |
Changes
Changes to src/main.c.
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char **pzFile, /* OUT: Filename component of URI */
char **pzErrMsg /* OUT: Error message (if rc!=SQLITE_OK) */
){
int rc = SQLITE_OK;
unsigned int flags = *pFlags;
const char *zVfs = zDefaultVfs;
char *zFile;
int nUri = sqlite3Strlen30(zUri);
assert( *pzErrMsg==0 );
if( ((flags & SQLITE_OPEN_URI) || sqlite3GlobalConfig.bOpenUri)
&& nUri>=5 && memcmp(zUri, "file:", 5)==0
){
................................................................................
** on the parsing context. As follows:
**
** 0: Parsing file-name.
** 1: Parsing name section of a name=value query parameter.
** 2: Parsing value section of a name=value query parameter.
*/
eState = 0;
while( zUri[iIn] && zUri[iIn]!='#' ){
char c = zUri[iIn++];
if( c=='%'
&& sqlite3Isxdigit(zUri[iIn])
&& sqlite3Isxdigit(zUri[iIn+1])
){
int octet = (sqlite3HexToInt(zUri[iIn++]) << 4);
octet += sqlite3HexToInt(zUri[iIn++]);
assert( octet>=0 && octet<256 );
if( octet==0 ){
/* This branch is taken when "%00" appears within the URI. In this
** case we ignore all text in the remainder of the path, name or
** value currently being parsed. So ignore the current character
** and skip to the next "?", "=" or "&", as appropriate. */
while( zUri[iIn] && zUri[iIn]!='#'
&& (eState!=0 || zUri[iIn]!='?')
&& (eState!=1 || (zUri[iIn]!='=' && zUri[iIn]!='&'))
&& (eState!=2 || zUri[iIn]!='&')
){
iIn++;
}
continue;
}
c = octet;
}else if( eState==1 && (c=='&' || c=='=') ){
................................................................................
}
if( mode==0 ){
*pzErrMsg = sqlite3_mprintf("no such %s mode: %s", zModeType, zVal);
rc = SQLITE_ERROR;
goto parse_uri_out;
}
if( mode>limit ){
rc = SQLITE_PERM;
goto parse_uri_out;
}
flags = (flags & ~mask) | mode;
}
}
|
> | | | | | | > > |
1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 .... 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 .... 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 |
char **pzFile, /* OUT: Filename component of URI */
char **pzErrMsg /* OUT: Error message (if rc!=SQLITE_OK) */
){
int rc = SQLITE_OK;
unsigned int flags = *pFlags;
const char *zVfs = zDefaultVfs;
char *zFile;
char c;
int nUri = sqlite3Strlen30(zUri);
assert( *pzErrMsg==0 );
if( ((flags & SQLITE_OPEN_URI) || sqlite3GlobalConfig.bOpenUri)
&& nUri>=5 && memcmp(zUri, "file:", 5)==0
){
................................................................................
** on the parsing context. As follows:
**
** 0: Parsing file-name.
** 1: Parsing name section of a name=value query parameter.
** 2: Parsing value section of a name=value query parameter.
*/
eState = 0;
while( (c = zUri[iIn])!=0 && c!='#' ){
iIn++;
if( c=='%'
&& sqlite3Isxdigit(zUri[iIn])
&& sqlite3Isxdigit(zUri[iIn+1])
){
int octet = (sqlite3HexToInt(zUri[iIn++]) << 4);
octet += sqlite3HexToInt(zUri[iIn++]);
assert( octet>=0 && octet<256 );
if( octet==0 ){
/* This branch is taken when "%00" appears within the URI. In this
** case we ignore all text in the remainder of the path, name or
** value currently being parsed. So ignore the current character
** and skip to the next "?", "=" or "&", as appropriate. */
while( (c = zUri[iIn])!=0 && c!='#'
&& (eState!=0 || c!='?')
&& (eState!=1 || (c!='=' && c!='&'))
&& (eState!=2 || c!='&')
){
iIn++;
}
continue;
}
c = octet;
}else if( eState==1 && (c=='&' || c=='=') ){
................................................................................
}
if( mode==0 ){
*pzErrMsg = sqlite3_mprintf("no such %s mode: %s", zModeType, zVal);
rc = SQLITE_ERROR;
goto parse_uri_out;
}
if( mode>limit ){
*pzErrMsg = sqlite3_mprintf("%s mode not allowed: %s",
zModeType, zVal);
rc = SQLITE_PERM;
goto parse_uri_out;
}
flags = (flags & ~mask) | mode;
}
}
|