in sqlite/shell.c [20842:21388]
int SQLITE_CDECL wmain(int argc, wchar_t **wargv){
char **argv;
#endif
char *zErrMsg = 0;
ShellState data;
const char *zInitFile = 0;
int i;
int rc = 0;
int warnInmemoryDb = 0;
int readStdin = 1;
int nCmd = 0;
char **azCmd = 0;
const char *zVfs = 0; /* Value of -vfs command-line option */
#if !SQLITE_SHELL_IS_UTF8
char **argvToFree = 0;
int argcToFree = 0;
#endif
setBinaryMode(stdin, 0);
setvbuf(stderr, 0, _IONBF, 0); /* Make sure stderr is unbuffered */
stdin_is_interactive = isatty(0);
stdout_is_console = isatty(1);
#ifdef SQLITE_DEBUG
registerOomSimulator();
#endif
#if !defined(_WIN32_WCE)
if( getenv("SQLITE_DEBUG_BREAK") ){
if( isatty(0) && isatty(2) ){
fprintf(stderr,
"attach debugger to process %d and press any key to continue.\n",
GETPID());
fgetc(stdin);
}else{
#if defined(_WIN32) || defined(WIN32)
#if SQLITE_OS_WINRT
__debugbreak();
#else
DebugBreak();
#endif
#elif defined(SIGTRAP)
raise(SIGTRAP);
#endif
}
}
#endif
#if USE_SYSTEM_SQLITE+0!=1
if( strncmp(sqlite3_sourceid(),SQLITE_SOURCE_ID,60)!=0 ){
utf8_printf(stderr, "SQLite header and source version mismatch\n%s\n%s\n",
sqlite3_sourceid(), SQLITE_SOURCE_ID);
exit(1);
}
#endif
main_init(&data);
/* On Windows, we must translate command-line arguments into UTF-8.
** The SQLite memory allocator subsystem has to be enabled in order to
** do this. But we want to run an sqlite3_shutdown() afterwards so that
** subsequent sqlite3_config() calls will work. So copy all results into
** memory that does not come from the SQLite memory allocator.
*/
#if !SQLITE_SHELL_IS_UTF8
sqlite3_initialize();
argvToFree = malloc(sizeof(argv[0])*argc*2);
argcToFree = argc;
argv = argvToFree + argc;
if( argv==0 ) shell_out_of_memory();
for(i=0; i<argc; i++){
char *z = sqlite3_win32_unicode_to_utf8(wargv[i]);
int n;
if( z==0 ) shell_out_of_memory();
n = (int)strlen(z);
argv[i] = malloc( n+1 );
if( argv[i]==0 ) shell_out_of_memory();
memcpy(argv[i], z, n+1);
argvToFree[i] = argv[i];
sqlite3_free(z);
}
sqlite3_shutdown();
#endif
assert( argc>=1 && argv && argv[0] );
Argv0 = argv[0];
/* Make sure we have a valid signal handler early, before anything
** else is done.
*/
#ifdef SIGINT
signal(SIGINT, interrupt_handler);
#elif (defined(_WIN32) || defined(WIN32)) && !defined(_WIN32_WCE)
SetConsoleCtrlHandler(ConsoleCtrlHandler, TRUE);
#endif
#ifdef SQLITE_SHELL_DBNAME_PROC
{
/* If the SQLITE_SHELL_DBNAME_PROC macro is defined, then it is the name
** of a C-function that will provide the name of the database file. Use
** this compile-time option to embed this shell program in larger
** applications. */
extern void SQLITE_SHELL_DBNAME_PROC(const char**);
SQLITE_SHELL_DBNAME_PROC(&data.zDbFilename);
warnInmemoryDb = 0;
}
#endif
/* Do an initial pass through the command-line argument to locate
** the name of the database file, the name of the initialization file,
** the size of the alternative malloc heap,
** and the first command to execute.
*/
verify_uninitialized();
for(i=1; i<argc; i++){
char *z;
z = argv[i];
if( z[0]!='-' ){
if( data.zDbFilename==0 ){
data.zDbFilename = z;
}else{
/* Excesss arguments are interpreted as SQL (or dot-commands) and
** mean that nothing is read from stdin */
readStdin = 0;
nCmd++;
azCmd = realloc(azCmd, sizeof(azCmd[0])*nCmd);
if( azCmd==0 ) shell_out_of_memory();
azCmd[nCmd-1] = z;
}
}
if( z[1]=='-' ) z++;
if( strcmp(z,"-separator")==0
|| strcmp(z,"-nullvalue")==0
|| strcmp(z,"-newline")==0
|| strcmp(z,"-cmd")==0
){
(void)cmdline_option_value(argc, argv, ++i);
}else if( strcmp(z,"-init")==0 ){
zInitFile = cmdline_option_value(argc, argv, ++i);
}else if( strcmp(z,"-batch")==0 ){
/* Need to check for batch mode here to so we can avoid printing
** informational messages (like from process_sqliterc) before
** we do the actual processing of arguments later in a second pass.
*/
stdin_is_interactive = 0;
}else if( strcmp(z,"-heap")==0 ){
#if defined(SQLITE_ENABLE_MEMSYS3) || defined(SQLITE_ENABLE_MEMSYS5)
const char *zSize;
sqlite3_int64 szHeap;
zSize = cmdline_option_value(argc, argv, ++i);
szHeap = integerValue(zSize);
if( szHeap>0x7fff0000 ) szHeap = 0x7fff0000;
sqlite3_config(SQLITE_CONFIG_HEAP, malloc((int)szHeap), (int)szHeap, 64);
#else
(void)cmdline_option_value(argc, argv, ++i);
#endif
}else if( strcmp(z,"-pagecache")==0 ){
sqlite3_int64 n, sz;
sz = integerValue(cmdline_option_value(argc,argv,++i));
if( sz>70000 ) sz = 70000;
if( sz<0 ) sz = 0;
n = integerValue(cmdline_option_value(argc,argv,++i));
if( sz>0 && n>0 && 0xffffffffffffLL/sz<n ){
n = 0xffffffffffffLL/sz;
}
sqlite3_config(SQLITE_CONFIG_PAGECACHE,
(n>0 && sz>0) ? malloc(n*sz) : 0, sz, n);
data.shellFlgs |= SHFLG_Pagecache;
}else if( strcmp(z,"-lookaside")==0 ){
int n, sz;
sz = (int)integerValue(cmdline_option_value(argc,argv,++i));
if( sz<0 ) sz = 0;
n = (int)integerValue(cmdline_option_value(argc,argv,++i));
if( n<0 ) n = 0;
sqlite3_config(SQLITE_CONFIG_LOOKASIDE, sz, n);
if( sz*n==0 ) data.shellFlgs &= ~SHFLG_Lookaside;
#ifdef SQLITE_ENABLE_VFSTRACE
}else if( strcmp(z,"-vfstrace")==0 ){
extern int vfstrace_register(
const char *zTraceName,
const char *zOldVfsName,
int (*xOut)(const char*,void*),
void *pOutArg,
int makeDefault
);
vfstrace_register("trace",0,(int(*)(const char*,void*))fputs,stderr,1);
#endif
#ifdef SQLITE_ENABLE_MULTIPLEX
}else if( strcmp(z,"-multiplex")==0 ){
extern int sqlite3_multiple_initialize(const char*,int);
sqlite3_multiplex_initialize(0, 1);
#endif
}else if( strcmp(z,"-mmap")==0 ){
sqlite3_int64 sz = integerValue(cmdline_option_value(argc,argv,++i));
sqlite3_config(SQLITE_CONFIG_MMAP_SIZE, sz, sz);
#ifdef SQLITE_ENABLE_SORTER_REFERENCES
}else if( strcmp(z,"-sorterref")==0 ){
sqlite3_int64 sz = integerValue(cmdline_option_value(argc,argv,++i));
sqlite3_config(SQLITE_CONFIG_SORTERREF_SIZE, (int)sz);
#endif
}else if( strcmp(z,"-vfs")==0 ){
zVfs = cmdline_option_value(argc, argv, ++i);
#ifdef SQLITE_HAVE_ZLIB
}else if( strcmp(z,"-zip")==0 ){
data.openMode = SHELL_OPEN_ZIPFILE;
#endif
}else if( strcmp(z,"-append")==0 ){
data.openMode = SHELL_OPEN_APPENDVFS;
#ifdef SQLITE_ENABLE_DESERIALIZE
}else if( strcmp(z,"-deserialize")==0 ){
data.openMode = SHELL_OPEN_DESERIALIZE;
}else if( strcmp(z,"-maxsize")==0 && i+1<argc ){
data.szMax = integerValue(argv[++i]);
#endif
}else if( strcmp(z,"-readonly")==0 ){
data.openMode = SHELL_OPEN_READONLY;
}else if( strcmp(z,"-nofollow")==0 ){
data.openFlags = SQLITE_OPEN_NOFOLLOW;
#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB)
}else if( strncmp(z, "-A",2)==0 ){
/* All remaining command-line arguments are passed to the ".archive"
** command, so ignore them */
break;
#endif
}else if( strcmp(z, "-memtrace")==0 ){
sqlite3MemTraceActivate(stderr);
}else if( strcmp(z,"-bail")==0 ){
bail_on_error = 1;
}
}
verify_uninitialized();
#ifdef SQLITE_SHELL_INIT_PROC
{
/* If the SQLITE_SHELL_INIT_PROC macro is defined, then it is the name
** of a C-function that will perform initialization actions on SQLite that
** occur just before or after sqlite3_initialize(). Use this compile-time
** option to embed this shell program in larger applications. */
extern void SQLITE_SHELL_INIT_PROC(void);
SQLITE_SHELL_INIT_PROC();
}
#else
/* All the sqlite3_config() calls have now been made. So it is safe
** to call sqlite3_initialize() and process any command line -vfs option. */
sqlite3_initialize();
#endif
if( zVfs ){
sqlite3_vfs *pVfs = sqlite3_vfs_find(zVfs);
if( pVfs ){
sqlite3_vfs_register(pVfs, 1);
}else{
utf8_printf(stderr, "no such VFS: \"%s\"\n", argv[i]);
exit(1);
}
}
if( data.zDbFilename==0 ){
#ifndef SQLITE_OMIT_MEMORYDB
data.zDbFilename = ":memory:";
warnInmemoryDb = argc==1;
#else
utf8_printf(stderr,"%s: Error: no database filename specified\n", Argv0);
return 1;
#endif
}
data.out = stdout;
sqlite3_appendvfs_init(0,0,0);
/* Go ahead and open the database file if it already exists. If the
** file does not exist, delay opening it. This prevents empty database
** files from being created if a user mistypes the database name argument
** to the sqlite command-line tool.
*/
if( access(data.zDbFilename, 0)==0 ){
open_db(&data, 0);
}
/* Process the initialization file if there is one. If no -init option
** is given on the command line, look for a file named ~/.sqliterc and
** try to process it.
*/
process_sqliterc(&data,zInitFile);
/* Make a second pass through the command-line argument and set
** options. This second pass is delayed until after the initialization
** file is processed so that the command-line arguments will override
** settings in the initialization file.
*/
for(i=1; i<argc; i++){
char *z = argv[i];
if( z[0]!='-' ) continue;
if( z[1]=='-' ){ z++; }
if( strcmp(z,"-init")==0 ){
i++;
}else if( strcmp(z,"-html")==0 ){
data.mode = MODE_Html;
}else if( strcmp(z,"-list")==0 ){
data.mode = MODE_List;
}else if( strcmp(z,"-quote")==0 ){
data.mode = MODE_Quote;
sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator, SEP_Comma);
sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator, SEP_Row);
}else if( strcmp(z,"-line")==0 ){
data.mode = MODE_Line;
}else if( strcmp(z,"-column")==0 ){
data.mode = MODE_Column;
}else if( strcmp(z,"-json")==0 ){
data.mode = MODE_Json;
}else if( strcmp(z,"-markdown")==0 ){
data.mode = MODE_Markdown;
}else if( strcmp(z,"-table")==0 ){
data.mode = MODE_Table;
}else if( strcmp(z,"-box")==0 ){
data.mode = MODE_Box;
}else if( strcmp(z,"-csv")==0 ){
data.mode = MODE_Csv;
memcpy(data.colSeparator,",",2);
#ifdef SQLITE_HAVE_ZLIB
}else if( strcmp(z,"-zip")==0 ){
data.openMode = SHELL_OPEN_ZIPFILE;
#endif
}else if( strcmp(z,"-append")==0 ){
data.openMode = SHELL_OPEN_APPENDVFS;
#ifdef SQLITE_ENABLE_DESERIALIZE
}else if( strcmp(z,"-deserialize")==0 ){
data.openMode = SHELL_OPEN_DESERIALIZE;
}else if( strcmp(z,"-maxsize")==0 && i+1<argc ){
data.szMax = integerValue(argv[++i]);
#endif
}else if( strcmp(z,"-readonly")==0 ){
data.openMode = SHELL_OPEN_READONLY;
}else if( strcmp(z,"-nofollow")==0 ){
data.openFlags |= SQLITE_OPEN_NOFOLLOW;
}else if( strcmp(z,"-ascii")==0 ){
data.mode = MODE_Ascii;
sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator, SEP_Unit);
sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator, SEP_Record);
}else if( strcmp(z,"-tabs")==0 ){
data.mode = MODE_List;
sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator, SEP_Tab);
sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator, SEP_Row);
}else if( strcmp(z,"-separator")==0 ){
sqlite3_snprintf(sizeof(data.colSeparator), data.colSeparator,
"%s",cmdline_option_value(argc,argv,++i));
}else if( strcmp(z,"-newline")==0 ){
sqlite3_snprintf(sizeof(data.rowSeparator), data.rowSeparator,
"%s",cmdline_option_value(argc,argv,++i));
}else if( strcmp(z,"-nullvalue")==0 ){
sqlite3_snprintf(sizeof(data.nullValue), data.nullValue,
"%s",cmdline_option_value(argc,argv,++i));
}else if( strcmp(z,"-header")==0 ){
data.showHeader = 1;
}else if( strcmp(z,"-noheader")==0 ){
data.showHeader = 0;
}else if( strcmp(z,"-echo")==0 ){
ShellSetFlag(&data, SHFLG_Echo);
}else if( strcmp(z,"-eqp")==0 ){
data.autoEQP = AUTOEQP_on;
}else if( strcmp(z,"-eqpfull")==0 ){
data.autoEQP = AUTOEQP_full;
}else if( strcmp(z,"-stats")==0 ){
data.statsOn = 1;
}else if( strcmp(z,"-scanstats")==0 ){
data.scanstatsOn = 1;
}else if( strcmp(z,"-backslash")==0 ){
/* Undocumented command-line option: -backslash
** Causes C-style backslash escapes to be evaluated in SQL statements
** prior to sending the SQL into SQLite. Useful for injecting
** crazy bytes in the middle of SQL statements for testing and debugging.
*/
ShellSetFlag(&data, SHFLG_Backslash);
}else if( strcmp(z,"-bail")==0 ){
/* No-op. The bail_on_error flag should already be set. */
}else if( strcmp(z,"-version")==0 ){
printf("%s %s\n", sqlite3_libversion(), sqlite3_sourceid());
return 0;
}else if( strcmp(z,"-interactive")==0 ){
stdin_is_interactive = 1;
}else if( strcmp(z,"-batch")==0 ){
stdin_is_interactive = 0;
}else if( strcmp(z,"-heap")==0 ){
i++;
}else if( strcmp(z,"-pagecache")==0 ){
i+=2;
}else if( strcmp(z,"-lookaside")==0 ){
i+=2;
}else if( strcmp(z,"-mmap")==0 ){
i++;
}else if( strcmp(z,"-memtrace")==0 ){
i++;
#ifdef SQLITE_ENABLE_SORTER_REFERENCES
}else if( strcmp(z,"-sorterref")==0 ){
i++;
#endif
}else if( strcmp(z,"-vfs")==0 ){
i++;
#ifdef SQLITE_ENABLE_VFSTRACE
}else if( strcmp(z,"-vfstrace")==0 ){
i++;
#endif
#ifdef SQLITE_ENABLE_MULTIPLEX
}else if( strcmp(z,"-multiplex")==0 ){
i++;
#endif
}else if( strcmp(z,"-help")==0 ){
usage(1);
}else if( strcmp(z,"-cmd")==0 ){
/* Run commands that follow -cmd first and separately from commands
** that simply appear on the command-line. This seems goofy. It would
** be better if all commands ran in the order that they appear. But
** we retain the goofy behavior for historical compatibility. */
if( i==argc-1 ) break;
z = cmdline_option_value(argc,argv,++i);
if( z[0]=='.' ){
rc = do_meta_command(z, &data);
if( rc && bail_on_error ) return rc==2 ? 0 : rc;
}else{
open_db(&data, 0);
rc = shell_exec(&data, z, &zErrMsg);
if( zErrMsg!=0 ){
utf8_printf(stderr,"Error: %s\n", zErrMsg);
if( bail_on_error ) return rc!=0 ? rc : 1;
}else if( rc!=0 ){
utf8_printf(stderr,"Error: unable to process SQL \"%s\"\n", z);
if( bail_on_error ) return rc;
}
}
#if !defined(SQLITE_OMIT_VIRTUALTABLE) && defined(SQLITE_HAVE_ZLIB)
}else if( strncmp(z, "-A", 2)==0 ){
if( nCmd>0 ){
utf8_printf(stderr, "Error: cannot mix regular SQL or dot-commands"
" with \"%s\"\n", z);
return 1;
}
open_db(&data, OPEN_DB_ZIPFILE);
if( z[2] ){
argv[i] = &z[2];
arDotCommand(&data, 1, argv+(i-1), argc-(i-1));
}else{
arDotCommand(&data, 1, argv+i, argc-i);
}
readStdin = 0;
break;
#endif
}else{
utf8_printf(stderr,"%s: Error: unknown option: %s\n", Argv0, z);
raw_printf(stderr,"Use -help for a list of options.\n");
return 1;
}
data.cMode = data.mode;
}
if( !readStdin ){
/* Run all arguments that do not begin with '-' as if they were separate
** command-line inputs, except for the argToSkip argument which contains
** the database filename.
*/
for(i=0; i<nCmd; i++){
if( azCmd[i][0]=='.' ){
rc = do_meta_command(azCmd[i], &data);
if( rc ){
free(azCmd);
return rc==2 ? 0 : rc;
}
}else{
open_db(&data, 0);
rc = shell_exec(&data, azCmd[i], &zErrMsg);
if( zErrMsg || rc ){
if( zErrMsg!=0 ){
utf8_printf(stderr,"Error: %s\n", zErrMsg);
}else{
utf8_printf(stderr,"Error: unable to process SQL: %s\n", azCmd[i]);
}
sqlite3_free(zErrMsg);
free(azCmd);
return rc!=0 ? rc : 1;
}
}
}
}else{
/* Run commands received from standard input
*/
if( stdin_is_interactive ){
char *zHome;
char *zHistory;
int nHistory;
printf(
"SQLite version %s %.19s\n" /*extra-version-info*/
"Enter \".help\" for usage hints.\n",
sqlite3_libversion(), sqlite3_sourceid()
);
if( warnInmemoryDb ){
printf("Connected to a ");
printBold("transient in-memory database");
printf(".\nUse \".open FILENAME\" to reopen on a "
"persistent database.\n");
}
zHistory = getenv("SQLITE_HISTORY");
if( zHistory ){
zHistory = strdup(zHistory);
}else if( (zHome = find_home_dir(0))!=0 ){
nHistory = strlen30(zHome) + 20;
if( (zHistory = malloc(nHistory))!=0 ){
sqlite3_snprintf(nHistory, zHistory,"%s/.sqlite_history", zHome);
}
}
if( zHistory ){ shell_read_history(zHistory); }
#if HAVE_READLINE || HAVE_EDITLINE
rl_attempted_completion_function = readline_completion;
#elif HAVE_LINENOISE
linenoiseSetCompletionCallback(linenoise_completion);
#endif
data.in = 0;
rc = process_input(&data);
if( zHistory ){
shell_stifle_history(2000);
shell_write_history(zHistory);
free(zHistory);
}
}else{
data.in = stdin;
rc = process_input(&data);
}
}
free(azCmd);
set_table_name(&data, 0);
if( data.db ){
session_close_all(&data);
close_db(data.db);
}
sqlite3_free(data.zFreeOnClose);
find_home_dir(1);
output_reset(&data);
data.doXdgOpen = 0;
clearTempFile(&data);
#if !SQLITE_SHELL_IS_UTF8
for(i=0; i<argcToFree; i++) free(argvToFree[i]);
free(argvToFree);
#endif
free(data.colWidth);
/* Clear the global data structure so that valgrind will detect memory
** leaks */
memset(&data, 0, sizeof(data));
return rc;
}