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Overview
| Comment: | Enforce the run-time sqlite3_limit() length limit on zeroblob(), not just the compile-time SQLITE_MAX_LENGTH limit. (CVS 6433) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | a04f9e7959325da18f66a1aa4ead1c50993807cb |
| User & Date: | drh 2009-04-02 09:07:13 |
Context
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2009-04-02
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| 10:16 | In the built-in SQL function implementations, improve some comments, fix an off-by-one error in detecting over-size strings, and add testcase() macros to verify that boundary values have been tested. (CVS 6434) check-in: 868a487f user: drh tags: trunk | |
| 09:07 | Enforce the run-time sqlite3_limit() length limit on zeroblob(), not just the compile-time SQLITE_MAX_LENGTH limit. (CVS 6433) check-in: a04f9e79 user: drh tags: trunk | |
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2009-04-01
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| 23:49 | Increase test coverage of bitvec.c slightly. Fix the line length on a comment in bitvec.c. (CVS 6432) check-in: ca3aa3ba user: drh tags: trunk | |
Changes
Changes to src/func.c.
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** This file contains the C functions that implement various SQL ** functions of SQLite. ** ** There is only one exported symbol in this file - the function ** sqliteRegisterBuildinFunctions() found at the bottom of the file. ** All other code has file scope. ** ** $Id: func.c,v 1.226 2009/04/01 16:33:38 drh Exp $ */ #include "sqliteInt.h" #include <stdlib.h> #include <assert.h> #include "vdbeInt.h" /* ................................................................................ /* ** Allocate nByte bytes of space using sqlite3_malloc(). If the ** allocation fails, call sqlite3_result_error_nomem() to notify ** the database handle that malloc() has failed. */ static void *contextMalloc(sqlite3_context *context, i64 nByte){ char *z; if( nByte>sqlite3_context_db_handle(context)->aLimit[SQLITE_LIMIT_LENGTH] ){ sqlite3_result_error_toobig(context); z = 0; }else{ z = sqlite3Malloc((int)nByte); if( !z && nByte>0 ){ sqlite3_result_error_nomem(context); } } return z; } /* ................................................................................ int argc, sqlite3_value **argv ){ i64 n; assert( argc==1 ); UNUSED_PARAMETER(argc); n = sqlite3_value_int64(argv[0]); if( n>SQLITE_MAX_LENGTH ){ sqlite3_result_error_toobig(context); }else{ sqlite3_result_zeroblob(context, (int)n); } } /* |
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** This file contains the C functions that implement various SQL ** functions of SQLite. ** ** There is only one exported symbol in this file - the function ** sqliteRegisterBuildinFunctions() found at the bottom of the file. ** All other code has file scope. ** ** $Id: func.c,v 1.227 2009/04/02 09:07:13 drh Exp $ */ #include "sqliteInt.h" #include <stdlib.h> #include <assert.h> #include "vdbeInt.h" /* ................................................................................ /* ** Allocate nByte bytes of space using sqlite3_malloc(). If the ** allocation fails, call sqlite3_result_error_nomem() to notify ** the database handle that malloc() has failed. */ static void *contextMalloc(sqlite3_context *context, i64 nByte){ char *z; assert( nByte>0 ); if( nByte>sqlite3_context_db_handle(context)->aLimit[SQLITE_LIMIT_LENGTH] ){ sqlite3_result_error_toobig(context); z = 0; }else{ z = sqlite3Malloc((int)nByte); if( !z ){ sqlite3_result_error_nomem(context); } } return z; } /* ................................................................................ int argc, sqlite3_value **argv ){ i64 n; assert( argc==1 ); UNUSED_PARAMETER(argc); n = sqlite3_value_int64(argv[0]); if( n>sqlite3_context_db_handle(context)->aLimit[SQLITE_LIMIT_LENGTH] ){ sqlite3_result_error_toobig(context); }else{ sqlite3_result_zeroblob(context, (int)n); } } /* |