Get all output from sqlite3 in C - c

Question

I have a table with 2 entry :
id hostname ip port
1 Raspberry pi 192.168.1.49 22
2 Test 127.0.0.1 22
In my code i get only the first entry with sqlite3.
I have :
{"id": "1", "hostname": "Raspberry pi", "ip": "192.168.1.49", "port": "22"}
Where is the second entry ?
I tried with printf and get the same problem it's not json issue.
There is the code :
#include <stdarg.h> /* va_list */
#include <stddef.h> /* NULL */
#include <stdint.h> /* int64_t */
#include <stdlib.h>
#include <string.h> /* memset */
#include <stdio.h>
#include <sqlite3.h>
#include <kcgi.h>
#include <kcgihtml.h>
#include <kcgijson.h>
static int callback(void *ptr, int argc, char **argv, char **azColName) {
struct kjsonreq *req = (struct kjsonreq *)ptr;
struct khtmlreq r;
int i;
for(i=0; i<argc; i++){
kjson_putstringp(req, azColName[i], argv[i] ? argv[i] : "NULL");
}
}
int
main(void)
{
struct kreq r;
struct kjsonreq req;
const char *page = "index";
if (khttp_parse(&r, NULL, 0, &page, 1, 0) != KCGI_OK)
return EXIT_FAILURE;
khttp_head(&r, kresps[KRESP_STATUS],
"%s", khttps[KHTTP_200]);
khttp_head(&r, kresps[KRESP_CONTENT_TYPE],
"%s", kmimetypes[r.mime]);
khttp_body(&r);
kjson_open(&req, &r);
kjson_obj_open(&req);
sqlite3 *db;
char *zErrMsg = 0;
int rc;
rc = sqlite3_open("/var/www/MaSSH/databases/massh.db", &db);
if(rc){
sqlite3_close(db);
}
rc = sqlite3_exec(db, "SELECT * FROM hosts;", callback, &req, &zErrMsg);
if(rc!= SQLITE_OK){
sqlite3_free(zErrMsg);
}
sqlite3_close(db);
kjson_obj_close(&req);
kjson_close(&req);
khttp_free(&r);
return EXIT_SUCCESS;
}

Answer 1

#include <sys/types.h> /* size_t, ssize_t */
#include <stdarg.h> /* va_list */
#include <stddef.h> /* NULL */
#include <stdint.h> /* int64_t */
#include <stdlib.h>
#include <string.h> /* memset */
#include <stdio.h>
#include <sqlite3.h>
#include <kcgi.h>
#include <kcgihtml.h>
#include <kcgijson.h>
int
main(void)
{
struct kreq r;
struct kjsonreq req;
const char *page = "index";
if (khttp_parse(&r, NULL, 0, &page, 1, 0) != KCGI_OK)
return EXIT_FAILURE;
khttp_head(&r, kresps[KRESP_STATUS],
"%s", khttps[KHTTP_200]);
khttp_head(&r, kresps[KRESP_CONTENT_TYPE],
"%s", kmimetypes[r.mime]);
khttp_body(&r);
kjson_open(&req, &r);
kjson_obj_open(&req);
sqlite3 *db;
sqlite3_stmt *res;
int rc;
rc = sqlite3_open("/var/www/MaSSH/databases/massh.db", &db);
if(rc){
sqlite3_close(db);
}
rc = sqlite3_prepare_v2(db, "SELECT * FROM hosts;", -1, &res, 0);
while((rc = sqlite3_step(res)) == SQLITE_ROW){
kjson_objp_open(&req, "host");
kjson_putstringp(&req, "id", sqlite3_column_text(res,0));
kjson_putstringp(&req, "hostname", sqlite3_column_text(res,1));
kjson_putstringp(&req, "ip", sqlite3_column_text(res,2));
kjson_putstringp(&req, "port", sqlite3_column_text(res,3));
kjson_obj_close(&req);
}
sqlite3_close(db);
kjson_obj_close(&req);
kjson_close(&req);
khttp_free(&r);
return EXIT_SUCCESS;
}