/* Copyright (C) 2008-2024 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with the GNU C Library; if not, see <https://www.gnu.org/licenses/>. */ #include <stdarg.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <wchar.h> #if __GLIBC_USE_DEPRECATED_SCANF # error "This file should not be compiled with deprecated scanf" #endif #define FAIL() \ do { \ result = 1; \ printf ("test at line %d failed\n", __LINE__); \ } while (0) static int __attribute__ ((format (scanf, 2, 3))) 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 __attribute__ ((format (scanf, 1, 2))) xscanf (const char *fmt, ...) { va_list ap; va_start (ap, fmt); int ret = vscanf (fmt, ap); va_end (ap); return ret; } static int __attribute__ ((format (scanf, 2, 3))) 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) { wchar_t *lsp; char *sp; 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", "%ms%2c", &sp, c) != 2) FAIL (); else { if (strcmp (sp, "1.25s") != 0 || memcmp (c, " x", 2) != 0) FAIL (); memset (sp, 'x', sizeof "1.25s"); free (sp); } 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", "%4mS%3c", &lsp, c) != 2) FAIL (); else { if (wcscmp (lsp, L"3.25") != 0 || memcmp (c, "S x", 3) != 0) FAIL (); memset (lsp, 'x', sizeof L"3.25"); free (lsp); } if (xsscanf ("4.25[0-9.] x", "%m[0-9.]%8c", &sp, c) != 2) FAIL (); else { if (strcmp (sp, "4.25") != 0 || memcmp (c, "[0-9.] x", 8) != 0) FAIL (); memset (sp, 'x', sizeof "4.25"); free (sp); } 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-scanf16.XXXXXX"]; sprintf (fname, "%s/tst-scanf16.XXXXXX", tmpdir); /* 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, "%ms%2c", &sp, c) != 2) FAIL (); else { if (strcmp (sp, "1.25s") != 0 || memcmp (c, " x", 2) != 0) FAIL (); memset (sp, 'x', sizeof "1.25s"); free (sp); } if (freopen (fname, "r", stdin) == NULL) FAIL (); else { if (xscanf ("%ms%2c", &sp, c) != 2) FAIL (); else { if (strcmp (sp, "1.25s") != 0 || memcmp (c, " x", 2) != 0) FAIL (); memset (sp, 'x', sizeof "1.25s"); free (sp); } } fclose (fp); } remove (fname); return result; }