/* Copyright (C) 2004-2024 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 <stdio.h> #include <string.h> #include <wchar.h> static int do_test (void) { FILE *f = popen ("echo test", "r"); int result = 0, ret; char *line = NULL; size_t len = 0; if (f == NULL) { printf ("popen failed %m"); return 1; } /* POSIX says that pipe streams are byte-oriented. */ if (fwide (f, 0) >= 0) { puts ("popen did not return byte-oriented stream"); result = 1; } if (getline (&line, &len, f) != 5) { puts ("could not read line from popen"); result = 1; } else if (strcmp (line, "test\n") != 0) { printf ("read \"%s\"\n", line); result = 1; } if (getline (&line, &len, f) != -1) { puts ("second getline did not return -1"); result = 1; } ret = pclose (f); if (ret != 0) { printf ("pclose returned %d\n", ret); result = 1; } return result; } #define TEST_FUNCTION do_test () #include "../test-skeleton.c"