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#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#if 0
#include <iconv.h>
#endif
#include "common.h"
int main(int argc, char **argv)
{
SQLRETURN rc;
SQLLEN ccharlen;
SQLLEN wcharlen;
HSTMT hstmt = SQL_NULL_HSTMT;
char *sql;
int i;
char buf[1000];
SQLWCHAR wbuf[1000];
/* Enable LF -> CR+LF conversion */
test_connect_ext("CX=1");
rc = SQLAllocHandle(SQL_HANDLE_STMT, conn, &hstmt);
if (!SQL_SUCCEEDED(rc))
{
print_diag("failed to allocate stmt handle", SQL_HANDLE_DBC, conn);
exit(1);
}
/*
* Return several columns that all contain the same string, with newlines.
* We want to try getting the column contents with several different
* options, and the driver doesn't let you fetch the same column more than
* once.
*/
sql = "SELECT E'string\nwith\nnewlines', E'string\nwith\nnewlines', "
"E'string\nwith\nnewlines', E'string\nwith\nnewlines', "
"E'string\nwith\nnewlines'";
rc = SQLExecDirect(hstmt, (SQLCHAR *) sql, SQL_NTS);
CHECK_STMT_RESULT(rc, "SQLExecDirect failed", hstmt);
rc = SQLFetch(hstmt);
CHECK_STMT_RESULT(rc, "SQLFetch failed", hstmt);
printf("reading to char buffer...\n");
rc = SQLGetData(hstmt, 1, SQL_C_CHAR, buf, sizeof(buf), &ccharlen);
CHECK_STMT_RESULT(rc, "SQLGetData failed", hstmt);
printf("strlen %d, SQLGetData claims %d\n\n", (int) strlen(buf), (int) ccharlen);
printf("reading to char buffer, with truncation...\n");
rc = SQLGetData(hstmt, 2, SQL_C_CHAR, buf, 10, &ccharlen);
CHECK_STMT_RESULT(rc, "SQLGetData failed", hstmt);
printf("strlen %d, SQLGetData claims %d\n\n", (int) strlen(buf), (int) ccharlen);
printf("reading to SQLWCHAR buffer...\n");
rc = SQLGetData(hstmt, 3, SQL_C_WCHAR, wbuf, sizeof(wbuf), &wcharlen);
CHECK_STMT_RESULT(rc, "SQLGetData failed", hstmt);
/* On some platforms, SQLWCHAR != wchar_t, so we cannot use wcslen here */
for (i = 0; i < sizeof(wbuf) && wbuf[i] != 0; i++);
printf("len %d chars, SQLGetData claims %d bytes\n\n", i, (int) wcharlen);
printf("reading to SQLWCHAR buffer, with truncation...\n");
rc = SQLGetData(hstmt, 4, SQL_C_WCHAR, wbuf, 10, &wcharlen);
CHECK_STMT_RESULT(rc, "SQLGetData failed", hstmt);
for (i = 0; i < sizeof(wbuf) && wbuf[i] != 0; i++);
printf("len %d chars, SQLGetData claims %d bytes\n\n", i, (int) wcharlen);
/*
* Read into a buffer that's slightly too small, so that it would fit
* if it wasn't for the LF->CR+LF conversion.
*/
printf("reading to SQLWCHAR buffer, with LF->CR+LF conversion causing truncation...\n");
rc = SQLGetData(hstmt, 5, SQL_C_WCHAR, wbuf, 42, &wcharlen);
CHECK_STMT_RESULT(rc, "SQLGetData failed", hstmt);
for (i = 0; i < sizeof(wbuf) && wbuf[i] != 0; i++);
printf("len %d chars, SQLGetData claims %d bytes\n\n", i, (int) wcharlen);
/*
* Print out the string, but on Unix we have to convert it to UTF-8 first.
* On Windows we could just use wprintf.
*/
#if 0
{
iconv_t cd = iconv_open("UTF-8", "UCS-2");
char utf8buf[1000];
size_t l;
size_t inbytes = wcharlen;
size_t outbytes = sizeof(utf8buf);
char *obuf = utf8buf;
char *ibuf = (char *) wbuf;
l = iconv(cd, &ibuf, &inbytes, &obuf, &outbytes);
*obuf = 0;
printf("inremains %d outremains %d l: %d s: %s\n", inbytes, outbytes, l, utf8buf);
}
#endif
rc = SQLFreeStmt(hstmt, SQL_CLOSE);
CHECK_STMT_RESULT(rc, "SQLFreeStmt failed", hstmt);
/* Clean up */
test_disconnect();
return 0;
}
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