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Overview
| Comment: | Provide the SQLITE_FILE_HEADER command-line option for changing the text that appears at the beginning of databases. (CVS 2515) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: | 3d7ee5b92d7e30f90cb7a8b3efd649b3 |
| User & Date: | drh 2005-06-14 16:04:06 |
Context
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2005-06-14
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| 17:47 | Fix an NDEBUG versus SQLITE_DEBUG confusion issue. (CVS 2516) check-in: 833c0160 user: drh tags: trunk | |
| 16:04 | Provide the SQLITE_FILE_HEADER command-line option for changing the text that appears at the beginning of databases. (CVS 2515) check-in: 3d7ee5b9 user: drh tags: trunk | |
| 02:24 | Fix a bug in the default busy handler for systems that lack usleep(). Ticket #1284. (CVS 2514) check-in: a42cb81d user: drh tags: trunk | |
Changes
Changes to src/btree.c.
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** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** $Id: btree.c,v 1.261 2005/05/24 20:19:58 drh Exp $ ** ** This file implements a external (disk-based) database using BTrees. ** For a detailed discussion of BTrees, refer to ** ** Donald E. Knuth, THE ART OF COMPUTER PROGRAMMING, Volume 3: ** "Sorting And Searching", pages 473-480. Addison-Wesley ** Publishing Company, Reading, Massachusetts. ................................................................................ /* Forward declarations */ typedef struct MemPage MemPage; /* ** This is a magic string that appears at the beginning of every ** SQLite database in order to identify the file as a real database. ** 123456789 123456 */ static const char zMagicHeader[] = "SQLite format 3"; /* ** Page type flags. An ORed combination of these flags appear as the ** first byte of every BTree page. */ #define PTF_INTKEY 0x01 #define PTF_ZERODATA 0x02 |
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** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ************************************************************************* ** $Id: btree.c,v 1.262 2005/06/14 16:04:06 drh Exp $ ** ** This file implements a external (disk-based) database using BTrees. ** For a detailed discussion of BTrees, refer to ** ** Donald E. Knuth, THE ART OF COMPUTER PROGRAMMING, Volume 3: ** "Sorting And Searching", pages 473-480. Addison-Wesley ** Publishing Company, Reading, Massachusetts. ................................................................................ /* Forward declarations */ typedef struct MemPage MemPage; /* ** This is a magic string that appears at the beginning of every ** SQLite database in order to identify the file as a real database. ** ** You can change this value at compile-time by specifying a ** -DSQLITE_FILE_HEADER="..." on the compiler command-line. The ** header must be exactly 16 bytes including the zero-terminator so ** the string itself should be 15 characters long. If you change ** the header, then your custom library will not be able to read ** databases generated by the standard tools and the standard tools ** will not be able to read databases created by your custom library. */ #ifndef SQLITE_FILE_HEADER /* 123456789 123456 */ # define SQLITE_FILE_HEADER "SQLite format 3" #endif static const char zMagicHeader[] = SQLITE_FILE_HEADER; /* ** Page type flags. An ORed combination of these flags appear as the ** first byte of every BTree page. */ #define PTF_INTKEY 0x01 #define PTF_ZERODATA 0x02 |
Changes to src/util.c.
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** ************************************************************************* ** Utility functions used throughout sqlite. ** ** This file contains functions for allocating memory, comparing ** strings, and stuff like that. ** ** $Id: util.c,v 1.136 2005/06/06 15:06:39 drh Exp $ */ #include "sqliteInt.h" #include <stdarg.h> #include <ctype.h> #if SQLITE_MEMDEBUG>2 && defined(__GLIBC__) #include <execinfo.h> ................................................................................ *zResult = 0; va_start(ap, pz); while( (z = va_arg(ap, const char*))!=0 ){ strcpy(zResult, z); zResult += strlen(zResult); } va_end(ap); #ifdef SQLITE_DEBUG #if SQLITE_DEBUG>1 fprintf(stderr,"string at 0x%x is %s\n", (int)*pz, *pz); #endif #endif } /* ** Set the most recent error code and error string for the sqlite |
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** ************************************************************************* ** Utility functions used throughout sqlite. ** ** This file contains functions for allocating memory, comparing ** strings, and stuff like that. ** ** $Id: util.c,v 1.137 2005/06/14 16:04:06 drh Exp $ */ #include "sqliteInt.h" #include <stdarg.h> #include <ctype.h> #if SQLITE_MEMDEBUG>2 && defined(__GLIBC__) #include <execinfo.h> ................................................................................ *zResult = 0; va_start(ap, pz); while( (z = va_arg(ap, const char*))!=0 ){ strcpy(zResult, z); zResult += strlen(zResult); } va_end(ap); #ifdef SQLITE_MEMDEBUG #if SQLITE_MEMDEBUG>1 fprintf(stderr,"string at 0x%x is %s\n", (int)*pz, *pz); #endif #endif } /* ** Set the most recent error code and error string for the sqlite |