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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include "util.h"
#define BUF_SIZE 100
char* copy_achar(const char* src)
{
int len = strlen(src) + 1;
char* dest = (char*)malloc(sizeof(char)*len);
strcpy(dest, src);
return dest;
}
int load_or_save_db(sqlite3 *pInMemory, const char *zFilename, int isSave)
{
int rc; /* Function return code */
sqlite3 *pFile; /* Database connection opened on zFilename */
sqlite3_backup *pBackup; /* Backup object used to copy data */
sqlite3 *pTo; /* Database to copy to (pFile or pInMemory) */
sqlite3 *pFrom; /* Database to copy from (pFile or pInMemory) */
rc = sqlite3_open(zFilename, &pFile);
if( rc==SQLITE_OK ) {
pFrom = (isSave ? pInMemory : pFile);
pTo = (isSave ? pFile : pInMemory);
pBackup = sqlite3_backup_init(pTo, "main", pFrom, "main");
if( pBackup ) {
(void)sqlite3_backup_step(pBackup, -1);
(void)sqlite3_backup_finish(pBackup);
}
rc = sqlite3_errcode(pTo);
}
(void)sqlite3_close(pFile);
return rc;
}
unsigned int count_file_lines(FILE *file)
{
char buf[BUF_SIZE];
unsigned int counter = 0;
for(;;) {
size_t res = fread(buf, 1, BUF_SIZE, file);
if (ferror(file))
return -1;
size_t i;
for(i = 0; i < res; i++)
if (buf[i] == '\n')
counter++;
if (feof(file))
break;
}
return counter;
}
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