diff options
Diffstat (limited to 'REORG.TODO/stdio-common/tst-fmemopen.c')
| -rw-r--r-- | REORG.TODO/stdio-common/tst-fmemopen.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/REORG.TODO/stdio-common/tst-fmemopen.c b/REORG.TODO/stdio-common/tst-fmemopen.c new file mode 100644 index 0000000000..0f90f40bdb --- /dev/null +++ b/REORG.TODO/stdio-common/tst-fmemopen.c @@ -0,0 +1,165 @@ +/* basic fmemopen interface testing. + Copyright (C) 2014-2017 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/>. */ + +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/mman.h> +#include <sys/stat.h> +#include <sys/types.h> + +static char *test_file; + +static void +do_prepare (int argc, char *argv[]) +{ + /* Construct the test file name based on ARGV[0], which will be + an absolute file name in the build directory. Don't touch the + source directory, which might be read-only. */ + if (asprintf (&test_file, "%s.test", argv[0]) < 0) + { + puts ("asprintf failed\n"); + exit (EXIT_FAILURE); + } +} + +static int +do_test (void) +{ + const char blah[] = "BLAH"; + FILE *fp; + char *mmap_data; + int ch, fd; + struct stat fs; + const char *cp; + + /* setup the physical file, and use it */ + if ((fp = fopen (test_file, "w+")) == NULL) + return 1; + if (fwrite (blah, 1, strlen (blah), fp) != strlen (blah)) + { + fclose (fp); + return 2; + } + + rewind (fp); + printf ("file: "); + cp = blah; + while ((ch = getc (fp)) != EOF) + { + fputc (ch, stdout); + if (ch != *cp) + { + printf ("\ncharacter %td: '%c' instead of '%c'\n", + cp - blah, ch, *cp); + fclose (fp); + return 1; + } + ++cp; + } + fputc ('\n', stdout); + if (ferror (fp)) + { + puts ("fp: error"); + fclose (fp); + return 1; + } + if (feof (fp)) + printf ("fp: EOF\n"); + else + { + puts ("not EOF"); + fclose (fp); + return 1; + } + fclose (fp); + + /* Now, mmap the file into a buffer, and do that too */ + if ((fd = open (test_file, O_RDONLY)) == -1) + { + printf ("open (%s, O_RDONLY) failed\n", test_file); + return 3; + } + if (fstat (fd, &fs) == -1) + { + printf ("stat (%i)\n", fd); + return 4; + } + + if ((mmap_data = (char *) mmap (NULL, fs.st_size, PROT_READ, + MAP_SHARED, fd, 0)) == MAP_FAILED) + { + printf ("mmap (NULL, %zu, PROT_READ, MAP_SHARED, %i, 0) failed\n", + (size_t) fs.st_size, fd); + return 5; + } + + if ((fp = fmemopen (mmap_data, fs.st_size, "r")) == NULL) + { + printf ("fmemopen (%p, %zu) failed\n", mmap_data, (size_t) fs.st_size); + return 1; + } + + printf ("mem: "); + cp = blah; + while ((ch = getc (fp)) != EOF) + { + fputc (ch, stdout); + if (ch != *cp) + { + printf ("%td character: '%c' instead of '%c'\n", + cp - blah, ch, *cp); + fclose (fp); + return 1; + } + ++cp; + } + + fputc ('\n', stdout); + + if (ferror (fp)) + { + puts ("fp: error"); + fclose (fp); + return 1; + } + if (feof (fp)) + printf ("fp: EOF\n"); + else + { + puts ("not EOF"); + fclose (fp); + return 1; + } + + fclose (fp); + + munmap (mmap_data, fs.st_size); + + unlink (test_file); + free (test_file); + + return 0; +} + +#define PREPARE(argc, argv) do_prepare (argc, argv) +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |