** This function does the work for the writefile() UDF. Refer to ** header comments at the top of this file for details. */
| 5824 | ** header comments at the top of this file for details. |
| 5825 | */ |
| 5826 | static int writeFile( |
| 5827 | sqlite3_context *pCtx, /* Context to return bytes written in */ |
| 5828 | const char *zFile, /* File to write */ |
| 5829 | sqlite3_value *pData, /* Data to write */ |
| 5830 | mode_t mode, /* MODE parameter passed to writefile() */ |
| 5831 | sqlite3_int64 mtime /* MTIME parameter (or -1 to not set time) */ |
| 5832 | ){ |
| 5833 | if( zFile==0 ) return 1; |
| 5834 | #if !defined(_WIN32) && !defined(WIN32) |
| 5835 | if( S_ISLNK(mode) ){ |
| 5836 | const char *zTo = (const char*)sqlite3_value_text(pData); |
| 5837 | if( zTo==0 || symlink(zTo, zFile)<0 ) return 1; |
| 5838 | }else |
| 5839 | #endif |
| 5840 | { |
| 5841 | if( S_ISDIR(mode) ){ |
| 5842 | if( mkdir(zFile, mode) ){ |
| 5843 | /* The mkdir() call to create the directory failed. This might not |
| 5844 | ** be an error though - if there is already a directory at the same |
| 5845 | ** path and either the permissions already match or can be changed |
| 5846 | ** to do so using chmod(), it is not an error. */ |
| 5847 | struct stat sStat; |
| 5848 | if( errno!=EEXIST |
| 5849 | || 0!=fileStat(zFile, &sStat) |
| 5850 | || !S_ISDIR(sStat.st_mode) |
| 5851 | || ((sStat.st_mode&0777)!=(mode&0777) && 0!=chmod(zFile, mode&0777)) |
| 5852 | ){ |
| 5853 | return 1; |
| 5854 | } |
| 5855 | } |
| 5856 | }else{ |
| 5857 | sqlite3_int64 nWrite = 0; |
| 5858 | const char *z; |
| 5859 | int rc = 0; |
| 5860 | FILE *out = fopen(zFile, "wb"); |
| 5861 | if( out==0 ) return 1; |
| 5862 | z = (const char*)sqlite3_value_blob(pData); |
| 5863 | if( z ){ |
| 5864 | sqlite3_int64 n = fwrite(z, 1, sqlite3_value_bytes(pData), out); |
| 5865 | nWrite = sqlite3_value_bytes(pData); |
| 5866 | if( nWrite!=n ){ |
| 5867 | rc = 1; |
| 5868 | } |
| 5869 | } |
| 5870 | fclose(out); |
| 5871 | if( rc==0 && mode && chmod(zFile, mode & 0777) ){ |
| 5872 | rc = 1; |
| 5873 | } |
| 5874 | if( rc ) return 2; |
| 5875 | sqlite3_result_int64(pCtx, nWrite); |
| 5876 | } |
| 5877 | } |
| 5878 | |
| 5879 | if( mtime>=0 ){ |
| 5880 | #if defined(_WIN32) |
| 5881 | #if !SQLITE_OS_WINRT |
| 5882 | /* Windows */ |
| 5883 | FILETIME lastAccess; |
no test coverage detected