From a06ac93dcf311dac3943cb5d96ad47625d413c2d Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 5 May 2024 20:46:38 +0200 Subject: Adding upstream version 8.30. Signed-off-by: Daniel Baumann --- gnulib-tests/test-read-file.c | 111 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 111 insertions(+) create mode 100644 gnulib-tests/test-read-file.c (limited to 'gnulib-tests/test-read-file.c') diff --git a/gnulib-tests/test-read-file.c b/gnulib-tests/test-read-file.c new file mode 100644 index 0000000..aa0cd60 --- /dev/null +++ b/gnulib-tests/test-read-file.c @@ -0,0 +1,111 @@ +/* + * Copyright (C) 2006-2007, 2010-2018 Free Software Foundation, Inc. + * Written by Simon Josefsson + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * This program 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . */ + +#include + +#include "read-file.h" + +#include +#include +#include + +#define FILE1 "/etc/resolv.conf" +#define FILE2 "/dev/null" + +int +main (void) +{ + struct stat statbuf; + int err = 0; + + /* We can perform the test only if the file exists and is readable. + Test whether it exists, then assume it is world-readable. */ + if (stat (FILE1, &statbuf) >= 0) + { + size_t len; + char *out = read_file (FILE1, &len); + + if (!out) + { + perror ("Could not read file"); + err = 1; + } + else + { + if (out[len] != '\0') + { + perror ("BAD: out[len] not zero"); + err = 1; + } + + if (S_ISREG (statbuf.st_mode)) + { + /* FILE1 is a regular file or a symlink to a regular file. */ + if (len != statbuf.st_size) + { + fprintf (stderr, "Read %lu from %s...\n", + (unsigned long) len, FILE1); + err = 1; + } + } + else + { + /* Assume FILE1 is not empty. */ + if (len == 0) + { + fprintf (stderr, "Read nothing from %s\n", FILE1); + err = 1; + } + } + free (out); + } + } + + /* We can perform the test only if the file exists and is readable. + Test whether it exists, then assume it is world-readable. */ + if (stat (FILE2, &statbuf) >= 0) + { + size_t len; + char *out = read_file (FILE2, &len); + + if (!out) + { + perror ("Could not read file"); + err = 1; + } + else + { + if (out[len] != '\0') + { + perror ("BAD: out[len] not zero"); + err = 1; + } + + /* /dev/null should always be empty. Ignore statbuf.st_size, since it + is not a regular file. */ + if (len != 0) + { + fprintf (stderr, "Read %lu from %s...\n", + (unsigned long) len, FILE2); + err = 1; + } + free (out); + } + } + + return err; +} -- cgit v1.2.3