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9c38a68999
2000-07-20 Ulrich Drepper <drepper@redhat.com> * libio/Makefile (tests): Add tst_wprintf2. (tst_wprintf2-ARGS): Define. * libio/tst_wprintf2.c: New file. Based on a test case by Yoshito Kawada <KAWADA@jp.ibm.com>. * libio/wfiledoalloc.c: Only allocate external buffer if this hasn't happened yet. * libio/wfileops.c (_IO_wdo_write): Overflow only if there is really something in the buffer. gconv call can write up to end of the buffer, not only _IO_write_end. (_IO_wfile_overflow): Allocate also external buffer. * stdio-common/vfprintf.c (process_string_arg): Handle multibyte strings with precision in vfwprintf correctly. * stdio-common/vfprintf.c: Fix completely broken handling of unbuffered wide character streams. Reported by Yoshito Kawada <KAWADA@jp.ibm.com>.
105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
/* Test case by Yoshito Kawada <KAWADA@jp.ibm.com>. */
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#include <errno.h>
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#include <error.h>
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#include <fcntl.h>
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#include <locale.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <wchar.h>
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int
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main (int argc, char *argv[])
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{
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int a = 3;
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int fd;
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char name[] = "/tmp/wprintf.out.XXXXXX";
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FILE *fp;
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char buf[100];
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size_t len;
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int res = 0;
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fd = mkstemp (name);
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if (fd == -1)
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error (EXIT_FAILURE, errno, "cannot open temporary file");
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unlink (name);
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setlocale (LC_ALL, "");
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fp = fdopen (dup (fd), "w");
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if (fp == NULL)
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error (EXIT_FAILURE, errno, "fdopen(,\"w\")");
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fwprintf (fp, L"test start");
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fwprintf (fp, L" int %d\n", a);
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/* String with precision. */
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fwprintf (fp, L"1[%6.3s]\n", argv[1]);
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fclose (fp);
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fp = fdopen (dup (fd), "a");
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if (fp == NULL)
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error (EXIT_FAILURE, errno, "fdopen(,\"a\")");
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setvbuf (fp, NULL, _IONBF, 0);
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/* fwprintf to unbuffered stream. */
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fwprintf (fp, L"hello.\n");
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fclose (fp);
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/* Now read it back in. This time using multibyte functions. */
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lseek (fd, SEEK_SET, 0);
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fp = fdopen (fd, "r");
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if (fp == NULL)
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error (EXIT_FAILURE, errno, "fdopen(,\"r\")");
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if (fgets (buf, sizeof buf, fp) != buf)
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error (EXIT_FAILURE, errno, "first fgets");
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len = strlen (buf);
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if (buf[len - 1] == '\n')
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--len;
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else
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{
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puts ("newline missing after first line");
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res = 1;
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}
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printf ("1st line: \"%.*s\" -> %s\n", (int) len, buf,
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strncmp (buf, "test start int 3", len) == 0 ? "OK" : "FAIL");
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res |= strncmp (buf, "test start int 3", len) != 0;
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if (fgets (buf, sizeof buf, fp) != buf)
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error (EXIT_FAILURE, errno, "second fgets");
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len = strlen (buf);
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if (buf[len - 1] == '\n')
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--len;
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else
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{
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puts ("newline missing after second line");
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res = 1;
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}
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printf ("2nd line: \"%.*s\" -> %s\n", (int) len, buf,
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strncmp (buf, "1[ Som]", len) == 0 ? "OK" : "FAIL");
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res |= strncmp (buf, "1[ Som]", len) != 0;
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if (fgets (buf, sizeof buf, fp) != buf)
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error (EXIT_FAILURE, errno, "third fgets");
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len = strlen (buf);
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if (buf[len - 1] == '\n')
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--len;
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else
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{
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puts ("newline missing after third line");
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res = 1;
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}
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printf ("3rd line: \"%.*s\" -> %s\n", (int) len, buf,
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strncmp (buf, "hello.", len) == 0 ? "OK" : "FAIL");
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res |= strncmp (buf, "hello.", len) != 0;
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return res;
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}
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