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Overview
| Comment: | Fix an infinite recursion on db_err() that might occur if SQLite is unable to create the WAL file for a database due to lack of write permission on the containing directory. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA3-256: | 421fe24138cd443b0059bb51baec08f4 |
| User & Date: | drh 2017-12-13 19:16:52 |
Context
|
2017-12-13
| ||
| 20:36 | Improved error reporting when trying to write to a repository that is in a read-only directory. check-in: 500b0a2a user: drh tags: trunk | |
| 19:16 | Fix an infinite recursion on db_err() that might occur if SQLite is unable to create the WAL file for a database due to lack of write permission on the containing directory. check-in: 421fe241 user: drh tags: trunk | |
| 17:17 | Always generate timeline-data for a timeline even if the table has no check-ins and thus no graph. This causes the timeline-data scanner to continue looking for subsequent timelines. check-in: 3f316764 user: drh tags: trunk | |
Changes
Changes to src/db.c.
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** structure.
*/
struct Stmt {
Blob sql; /* The SQL for this statement */
sqlite3_stmt *pStmt; /* The results of sqlite3_prepare_v2() */
Stmt *pNext, *pPrev; /* List of all unfinalized statements */
int nStep; /* Number of sqlite3_step() calls */
};
/*
** Copy this to initialize a Stmt object to a clean/empty state. This
** is useful to help avoid assertions when performing cleanup in some
** error handling cases.
*/
................................................................................
#endif /* INTERFACE */
const struct Stmt empty_Stmt = empty_Stmt_m;
/*
** Call this routine when a database error occurs.
*/
static void db_err(const char *zFormat, ...){
va_list ap;
char *z;
int rc = 1;
va_start(ap, zFormat);
z = vmprintf(zFormat, ap);
va_end(ap);
#ifdef FOSSIL_ENABLE_JSON
if( g.json.isJsonMode ){
json_err( 0, z, 1 );
if( g.isHTTP ){
................................................................................
g.cgiOutput = 0;
cgi_printf("<h1>Database Error</h1>\n<p>%h</p>\n", z);
cgi_reply();
}else{
fprintf(stderr, "%s: %s\n", g.argv[0], z);
}
free(z);
db_force_rollback();
fossil_exit(rc);
}
/*
** All static variable that a used by only this file are gathered into
** the following structure.
................................................................................
}
rc = sqlite3_prepare_v3(g.db, zSql, -1, prepFlags, &pStmt->pStmt, 0);
if( rc!=0 && (flags & DB_PREPARE_IGNORE_ERROR)!=0 ){
db_err("%s\n%s", sqlite3_errmsg(g.db), zSql);
}
pStmt->pNext = pStmt->pPrev = 0;
pStmt->nStep = 0;
return rc;
}
int db_prepare(Stmt *pStmt, const char *zFormat, ...){
int rc;
va_list ap;
va_start(ap, zFormat);
rc = db_vprepare(pStmt, 0, zFormat, ap);
................................................................................
/*
** Step the SQL statement. Return either SQLITE_ROW or an error code
** or SQLITE_OK if the statement finishes successfully.
*/
int db_step(Stmt *pStmt){
int rc;
rc = sqlite3_step(pStmt->pStmt);
pStmt->nStep++;
return rc;
}
/*
** Print warnings if a query is inefficient.
|
> > > > > > |
52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 .. 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 .. 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 ... 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 ... 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 |
** structure.
*/
struct Stmt {
Blob sql; /* The SQL for this statement */
sqlite3_stmt *pStmt; /* The results of sqlite3_prepare_v2() */
Stmt *pNext, *pPrev; /* List of all unfinalized statements */
int nStep; /* Number of sqlite3_step() calls */
int rc; /* Error from db_vprepare() */
};
/*
** Copy this to initialize a Stmt object to a clean/empty state. This
** is useful to help avoid assertions when performing cleanup in some
** error handling cases.
*/
................................................................................
#endif /* INTERFACE */
const struct Stmt empty_Stmt = empty_Stmt_m;
/*
** Call this routine when a database error occurs.
*/
static void db_err(const char *zFormat, ...){
static int rcLooping = 0;
va_list ap;
char *z;
int rc = 1;
if( rcLooping ) exit(rcLooping);
va_start(ap, zFormat);
z = vmprintf(zFormat, ap);
va_end(ap);
#ifdef FOSSIL_ENABLE_JSON
if( g.json.isJsonMode ){
json_err( 0, z, 1 );
if( g.isHTTP ){
................................................................................
g.cgiOutput = 0;
cgi_printf("<h1>Database Error</h1>\n<p>%h</p>\n", z);
cgi_reply();
}else{
fprintf(stderr, "%s: %s\n", g.argv[0], z);
}
free(z);
rcLooping = rc;
db_force_rollback();
fossil_exit(rc);
}
/*
** All static variable that a used by only this file are gathered into
** the following structure.
................................................................................
}
rc = sqlite3_prepare_v3(g.db, zSql, -1, prepFlags, &pStmt->pStmt, 0);
if( rc!=0 && (flags & DB_PREPARE_IGNORE_ERROR)!=0 ){
db_err("%s\n%s", sqlite3_errmsg(g.db), zSql);
}
pStmt->pNext = pStmt->pPrev = 0;
pStmt->nStep = 0;
pStmt->rc = rc;
return rc;
}
int db_prepare(Stmt *pStmt, const char *zFormat, ...){
int rc;
va_list ap;
va_start(ap, zFormat);
rc = db_vprepare(pStmt, 0, zFormat, ap);
................................................................................
/*
** Step the SQL statement. Return either SQLITE_ROW or an error code
** or SQLITE_OK if the statement finishes successfully.
*/
int db_step(Stmt *pStmt){
int rc;
if( pStmt->pStmt==0 ) return pStmt->rc;
rc = sqlite3_step(pStmt->pStmt);
pStmt->nStep++;
return rc;
}
/*
** Print warnings if a query is inefficient.
|