Permalink
Cannot retrieve contributors at this time
Name already in use
A tag already exists with the provided branch name. Many Git commands accept both tag and branch names, so creating this branch may cause unexpected behavior. Are you sure you want to create this branch?
glibc/stdio-common/scanf17.c
Go to fileThis commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
130 lines (116 sloc)
2.71 KB
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#undef _GNU_SOURCE | |
#define _XOPEN_SOURCE 600 | |
#undef _LIBC | |
#undef _IO_MTSAFE_IO | |
/* The following macro definitions are a hack. They word around disabling | |
the GNU extension while still using a few internal headers. */ | |
#define u_char unsigned char | |
#define u_short unsigned short | |
#define u_int unsigned int | |
#define u_long unsigned long | |
#include <stdarg.h> | |
#include <stdio.h> | |
#include <stdlib.h> | |
#include <string.h> | |
#include <wchar.h> | |
#define FAIL() \ | |
do { \ | |
result = 1; \ | |
printf ("test at line %d failed\n", __LINE__); \ | |
} while (0) | |
static int | |
xsscanf (const char *str, const char *fmt, ...) | |
{ | |
va_list ap; | |
va_start (ap, fmt); | |
int ret = vsscanf (str, fmt, ap); | |
va_end (ap); | |
return ret; | |
} | |
static int | |
xscanf (const char *fmt, ...) | |
{ | |
va_list ap; | |
va_start (ap, fmt); | |
int ret = vscanf (fmt, ap); | |
va_end (ap); | |
return ret; | |
} | |
static int | |
xfscanf (FILE *f, const char *fmt, ...) | |
{ | |
va_list ap; | |
va_start (ap, fmt); | |
int ret = vfscanf (f, fmt, ap); | |
va_end (ap); | |
return ret; | |
} | |
int | |
main (void) | |
{ | |
float f; | |
double d; | |
char c[8]; | |
int result = 0; | |
if (xsscanf (" 0.25s x", "%e%3c", &f, c) != 2) | |
FAIL (); | |
else if (f != 0.25 || memcmp (c, "s x", 3) != 0) | |
FAIL (); | |
if (xsscanf (" 1.25s x", "%as%2c", &f, c) != 2) | |
FAIL (); | |
else if (f != 1.25 || memcmp (c, " x", 2) != 0) | |
FAIL (); | |
if (xsscanf (" 2.25s x", "%las%2c", &d, c) != 2) | |
FAIL (); | |
else if (d != 2.25 || memcmp (c, " x", 2) != 0) | |
FAIL (); | |
if (xsscanf (" 3.25S x", "%4aS%2c", &f, c) != 2) | |
FAIL (); | |
else if (f != 3.25 || memcmp (c, " x", 2) != 0) | |
FAIL (); | |
if (xsscanf (" 4.25[0-9.] x", "%a[0-9.]%2c", &f, c) != 2) | |
FAIL (); | |
else if (f != 4.25 || memcmp (c, " x", 2) != 0) | |
FAIL (); | |
if (xsscanf (" 5.25[0-9.] x", "%la[0-9.]%2c", &d, c) != 2) | |
FAIL (); | |
else if (d != 5.25 || memcmp (c, " x", 2) != 0) | |
FAIL (); | |
const char *tmpdir = getenv ("TMPDIR"); | |
if (tmpdir == NULL || tmpdir[0] == '\0') | |
tmpdir = "/tmp"; | |
char fname[strlen (tmpdir) + sizeof "/tst-scanf17.XXXXXX"]; | |
sprintf (fname, "%s/tst-scanf17.XXXXXX", tmpdir); | |
if (fname == NULL) | |
FAIL (); | |
/* Create a temporary file. */ | |
int fd = mkstemp (fname); | |
if (fd == -1) | |
FAIL (); | |
FILE *fp = fdopen (fd, "w+"); | |
if (fp == NULL) | |
FAIL (); | |
else | |
{ | |
if (fputs (" 1.25s x", fp) == EOF) | |
FAIL (); | |
if (fseek (fp, 0, SEEK_SET) != 0) | |
FAIL (); | |
if (xfscanf (fp, "%as%2c", &f, c) != 2) | |
FAIL (); | |
else if (f != 1.25 || memcmp (c, " x", 2) != 0) | |
FAIL (); | |
if (freopen (fname, "r", stdin) == NULL) | |
FAIL (); | |
else | |
{ | |
if (xscanf ("%as%2c", &f, c) != 2) | |
FAIL (); | |
else if (f != 1.25 || memcmp (c, " x", 2) != 0) | |
FAIL (); | |
} | |
fclose (fp); | |
} | |
remove (fname); | |
return result; | |
} |