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Overview
Comment:Improve the error message that comes back when sqlite3_load_extension() fails because the named file exists but is not a valid shared library.
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SHA3-256: 05fee1a21ea398f1e4d6f1cf361657eff25ed6cd8f85ab398262dcfd30da57e9
User & Date: drh 2017-12-23 13:55:43
References
2018-05-07
02:50
Backout change [05fee1a21ea398f1e4d6f1cf3] because it does not take into account the LD_LIBRARY_PATH environment variable used by dl_open(). (check-in: b348d119 user: drh tags: trunk)
Context
2017-12-23
14:39
Simplification to the error handling logic in the extension loader. (check-in: 07c77314 user: drh tags: trunk)
13:55
Improve the error message that comes back when sqlite3_load_extension() fails because the named file exists but is not a valid shared library. (check-in: 05fee1a2 user: drh tags: trunk)
12:33
Move the generation of output column names earlier in the case of a CREATE TABLE AS. This is a fix for ticket [3b4450072511e62] and a continuation of check-in [ade7ddf1998190b2b63] that fixes cases of ticket [de3403bf5ae5f72ed6] that were missed previously. (check-in: 6b2ff26c user: drh tags: trunk)
Changes
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Changes to src/loadext.c.

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  zEntry = zProc ? zProc : "sqlite3_extension_init";

  handle = sqlite3OsDlOpen(pVfs, zFile);
#if SQLITE_OS_UNIX || SQLITE_OS_WIN
  for(ii=0; ii<ArraySize(azEndings) && handle==0; ii++){
    char *zAltFile = sqlite3_mprintf("%s.%s", zFile, azEndings[ii]);

    if( zAltFile==0 ) return SQLITE_NOMEM_BKPT;



    handle = sqlite3OsDlOpen(pVfs, zAltFile);

    sqlite3_free(zAltFile);
  }
#endif
  if( handle==0 ){
    if( pzErrMsg ){
      *pzErrMsg = zErrmsg = sqlite3_malloc64(nMsg);
      if( zErrmsg ){








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  zEntry = zProc ? zProc : "sqlite3_extension_init";

  handle = sqlite3OsDlOpen(pVfs, zFile);
#if SQLITE_OS_UNIX || SQLITE_OS_WIN
  for(ii=0; ii<ArraySize(azEndings) && handle==0; ii++){
    char *zAltFile = sqlite3_mprintf("%s.%s", zFile, azEndings[ii]);
    int bOk = 0;
    if( zAltFile==0 ) return SQLITE_NOMEM_BKPT;
    if( sqlite3OsAccess(pVfs,zAltFile,SQLITE_ACCESS_EXISTS,&bOk)==SQLITE_OK
     && bOk
    ){
      handle = sqlite3OsDlOpen(pVfs, zAltFile);
    }
    sqlite3_free(zAltFile);
  }
#endif
  if( handle==0 ){
    if( pzErrMsg ){
      *pzErrMsg = zErrmsg = sqlite3_malloc64(nMsg);
      if( zErrmsg ){
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