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/**************************************************************
* db.execute driver=name database=name [input=filename]
*
*
* process one non-select sql statement.
* errors cause an error message to be printed to stderr and exit(1)
* successful execution results in exit(0)
****************************************************************/
#include <stdlib.h>
#include <string.h>
#include "gis.h"
#include "dbmi.h"
#include "codes.h"
#include "glocale.h"
struct {
char *driver, *database, *input;
int i;
} parms;
void parse_command_line();
int get_stmt( FILE *fd, dbString *stmt);
int stmt_is_empty( dbString *stmt );
int
main( int argc, char *argv[] )
{
dbString stmt;
dbDriver *driver;
dbHandle handle;
int ret;
FILE *fd;
int error = 0;
parse_command_line (argc, argv);
if (parms.input)
{
fd = fopen (parms.input, "r");
if (fd == NULL)
{
perror (parms.input);
exit(ERROR);
}
}
else
fd = stdin;
driver = db_start_driver(parms.driver);
if (driver == NULL)
G_fatal_error(_("No db connection for driver <%s> defined. Run db.connect"), parms.driver);
db_init_handle (&handle);
db_set_handle (&handle, parms.database, NULL);
if (db_open_database(driver, &handle) != DB_OK)
exit(ERROR);
while( get_stmt(fd, &stmt) )
{
if(!stmt_is_empty(&stmt)) {
G_debug (3, "sql: %s", db_get_string(&stmt) );
ret = db_execute_immediate (driver, &stmt);
if ( ret != DB_OK ) {
if (parms.i){ /* ignore SQL errors */
G_warning ( _("Error while executing: \"%s\"\n"), db_get_string( &stmt ) );
error++;
}
else
G_fatal_error ( _("Error while executing: \"%s\"\n"), db_get_string( &stmt ) );
}
}
}
db_close_database(driver);
db_shutdown_driver(driver);
exit(error);
}
void
parse_command_line(argc, argv) char *argv[];
{
struct Option *driver, *database, *input;
struct Flag *i;
struct GModule *module;
char *drv, *db;
/* Initialize the GIS calls */
G_gisinit(argv[0]) ;
driver = G_define_option();
driver->key = "driver";
driver->type = TYPE_STRING;
driver->options = db_list_drivers();
driver->required = NO;
driver->description = "driver name";
if ( (drv=db_get_default_driver_name()) )
driver->answer = drv;
database = G_define_option();
database->key = "database";
database->type = TYPE_STRING;
database->required = NO;
database->description = "database name";
if ( (db=db_get_default_database_name()) )
database->answer = db;
input = G_define_option();
input->key = "input";
input->key_desc = "filename";
input->type = TYPE_STRING;
input->required = NO;
input->description = "filename with sql statement";
input->gisprompt = "file,file,file";
i = G_define_flag();
i->key = 'i';
i->description = _("ignore SQL errors and continue");
/* Set description */
module = G_define_module();
module->description = ""\
"Execute any SQL statement.";
if(G_parser(argc, argv))
exit(ERROR);
parms.driver = driver->answer;
parms.database = database->answer;
parms.input = input->answer;
parms.i = i->answer;
}
int
get_stmt(fd, stmt)
FILE *fd;
dbString *stmt;
{
char buf[4000], buf2[4000];
int len, row = 0;
db_init_string (stmt);
while ( fgets (buf, 4000, fd) != NULL ) {
strcpy ( buf2, buf );
G_chop (buf2);
len = strlen (buf2);
len = strlen (buf2);
if ( buf2[ len - 1 ] == ';' ) { /* end of statement */
buf2 [len - 1] = 0; /* truncate ';' */
db_append_string (stmt, buf2); /* append truncated */
return 1;
} else {
db_append_string (stmt, buf); /* append not truncated string (\n may be part of value) */
}
row++;
}
if ( row > 0 ) return 1;
return 0;
}
int
stmt_is_empty(stmt)
dbString *stmt;
{
char dummy[2];
return (sscanf (db_get_string(stmt), "%1s", dummy) != 1);
}
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