/* Copyright (C) 1991-2015 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 <http://www.gnu.org/licenses/>. */ #ifdef BSD #include </usr/include/stdio.h> #else #include <stdio.h> #endif #include <math.h> #include <stdlib.h> #include <string.h> int main (int argc, char **argv) { char buf[BUFSIZ]; FILE *in = stdin, *out = stdout; int x; int result = 0; if (sscanf ("0", "%d", &x) != 1) { fputs ("test failed!\n", stdout); result = 1; } if (sscanf ("08905x", "%9[0-9]", buf) != 1 || strcmp (buf, "08905") != 0) { fputs ("test failed!\n", stdout); result = 1; } if (sscanf ("", "%10[a-z]", buf) != EOF) { fputs ("test failed!\n", stdout); result = 1; } sscanf ("conversion] Zero flag Ze]ro#\n", "%*[^]] %[^#]\n", buf); if (strcmp (buf, "] Zero flag Ze]ro") != 0) { fputs ("test failed!\n", stdout); result = 1; } if (argc == 2 && !strcmp (argv[1], "-opipe")) { out = popen ("/bin/cat", "w"); if (out == NULL) { perror ("popen: /bin/cat"); result = 1; } } else if (argc == 3 && !strcmp (argv[1], "-ipipe")) { sprintf (buf, "/bin/cat %s", argv[2]); in = popen (buf, "r"); if (in == NULL) { perror ("popen: /bin/cat"); result = 1; } } { char name[50]; fprintf (out, "sscanf (\"thompson\", \"%%s\", name) == %d, name == \"%s\"\n", sscanf ("thompson", "%s", name), name); if (strcmp (name, "thompson") != 0) { fputs ("test failed!\n", stdout); result = 1; } } fputs ("Testing scanf (vfscanf)\n", out); fputs ("Test 1:\n", out); { int n, i; float x; char name[50]; n = fscanf (in, "%d%f%s", &i, &x, name); fprintf (out, "n = %d, i = %d, x = %f, name = \"%.50s\"\n", n, i, x, name); if (n != 3 || i != 25 || x != 5.432F || strcmp (name, "thompson")) { fputs ("test failed!\n", stdout); result = 1; } } fprintf (out, "Residual: \"%s\"\n", fgets (buf, sizeof (buf), in)); if (strcmp (buf, "\n")) { fputs ("test failed!\n", stdout); result = 1; } fputs ("Test 2:\n", out); { int i; float x; char name[50]; (void) fscanf (in, "%2d%f%*d %[0123456789]", &i, &x, name); fprintf (out, "i = %d, x = %f, name = \"%.50s\"\n", i, x, name); if (i != 56 || x != 789.0F || strcmp (name, "56")) { fputs ("test failed!\n", stdout); result = 1; } } fprintf (out, "Residual: \"%s\"\n", fgets (buf, sizeof (buf), in)); if (strcmp (buf, "a72\n")) { fputs ("test failed!\n", stdout); result = 1; } fputs ("Test 3:\n", out); { static struct { int count; float quant; const char *units; const char *item; } ok[] = { { 3, 2.0F, "quarts", "oil" }, { 2, -12.8F, "degrees", "" }, { 0, 0.0F, "", "" }, { 3, 10.0F, "LBS", "fertilizer" }, { 3, 100.0F, "rgs", "energy" }, { -1, 0.0F, "", "" }}; size_t rounds = 0; float quant; char units[21], item[21]; while (!feof (in) && !ferror (in)) { int count; if (rounds++ >= sizeof (ok) / sizeof (ok[0])) { fputs ("test failed!\n", stdout); result = 1; } quant = 0.0; units[0] = item[0] = '\0'; count = fscanf (in, "%f%20s of %20s", &quant, units, item); (void) fscanf (in, "%*[^\n]"); fprintf (out, "count = %d, quant = %f, item = %.21s, units = %.21s\n", count, quant, item, units); if (count != ok[rounds-1].count || quant != ok[rounds-1].quant || strcmp (item, ok[rounds-1].item) || strcmp (units, ok[rounds-1].units)) { fputs ("test failed!\n", stdout); result = 1; } } } buf[0] = '\0'; fprintf (out, "Residual: \"%s\"\n", fgets (buf, sizeof (buf), in)); if (strcmp (buf, "")) { fputs ("test failed!\n", stdout); result = 1; } if (out != stdout) pclose (out); fputs ("Test 4:\n", out); { int res, val, n; res = sscanf ("-242", "%3o%n", &val, &n); printf ("res = %d, val = %d, n = %d\n", res, val, n); if (res != 1 || val != -20 || n != 3) { fputs ("test failed!\n", stdout); result = 1; } } fputs ("Test 5:\n", out); { double a = 0, b = 0; int res, n; res = sscanf ("1234567", "%3lg%3lg%n", &a, &b, &n); printf ("res = %d, a = %g, b = %g, n = %d\n", res, a, b, n); if (res != 2 || a != 123 || b != 456 || n != 6) { fputs ("test failed!\n", stdout); result = 1; } res = sscanf ("0", "%lg", &a); printf ("res = %d, a = %g\n", res, a); if (res != 1 || a != 0) { fputs ("test failed!\n", stdout); result = 1; } res = sscanf ("1e3", "%lg%n", &a, &n); printf ("res = %d, a = %g, n = %d\n", res, a, n); if (res != 1 || a != 1000 || n != 3) { fputs ("test failed!\n", stdout); result = 1; } } fputs ("Test 6:\n", stdout); { char *p = (char *) -1; int res; sprintf (buf, "%p", NULL); res = sscanf (buf, "%p", &p); printf ("sscanf (\"%s\", \"%%p\", &p) = %d, p == %p\n", buf, res, p); if (res != 1 || p != NULL) { fputs ("test failed!\n", stdout); result = 1; } } fputs ("Test 7:\n", stdout); { short a[2] = { -1, -1 }; int res; res = sscanf ("32767 1234", "%hd %hd", &a[0], &a[1]); printf ("res = %d, a[0] = %d, a[1] = %d\n", res, a[0], a[1]); if (res != 2 || a[0] != 32767 || a[1] != 1234) { fputs ("test failed!\n", stdout); result = 1; } } fputs ("Test 8:\n", stdout); { double d = 123456.789; int res; res = sscanf ("0x1234", "%lf", &d); printf ("res = %d, d = %f\n", res, d); if (res != 1 || d != 4660) { fputs ("test failed!\n", stdout); result = 1; } } fputs ("Test 9:\n", stdout); { /* From PR libc/1313 reported by Ben Caradoc-Davies <bmcd@physics.otago.ac.nz>. */ float value; int res; res = sscanf ("0123", "%2f", &value); if (res != 1 || value != 1.0) { fputs ("test failed!\n", stdout); result = 1; } } fputs ("Test 10:\n", stdout); { float value; int res; res = sscanf ("--", "%f", &value); if (res != 0) { fputs ("test failed!\n", stdout); result = 1; } } fputs ("Test 11:\n", stdout); { char uart[50]; int res; res = sscanf ("uart:16550A tx:0", "uart:%31s tx:%*u", uart); if (res != 1) { fputs ("test failed!\n", stdout); result = 1; } } fputs ("Test 12:\n", stdout); { char uart[50]; int res; res = sscanf ("uart:16550A", "uart:%31s tx:%*u", uart); if (res != 1) { fputs ("test failed!\n", stdout); result = 1; } } fputs ("Test 13:\n", stdout); { float value; int res; res = sscanf ("-InF", "%f", &value); if (res != 1 || isinf (value) != -1) { fputs ("test failed!\n", stdout); result = 1; } res = sscanf ("+InfiNiTY", "%f", &value); if (res != 1 || isinf (value) != 1) { fputs ("test failed!\n", stdout); result = 1; } } return result; }