Mercurial > hg > octave-nkf > gnulib-hg
changeset 8872:dfee3b4fd46c
Fix lseek on mingw.
* modules/lseek: New module.
* m4/lseek.m4: New file.
* lib/lseek.c: New file.
* modules/lseek-tests: New file.
* tests/test-lseek.c: New file.
* tests/test-lseek.sh: New file.
* MODULES.html.sh: Document lseek module.
* modules/fflush (Depends-on): Add lseek, fseeko.
* modules/fseeko (Depends-on): Likewise.
* modules/ftello (Depends-on): Likewise.
* m4/fseeko.m4 (gl_FUNC_FSEEKO): Replace fseek[o] if lseek is
broken.
* m4/ftello.m4 (gl_FUNC_FTELLO): Replace ftell[o] if lseek is
broken.
* m4/fflush.m4 (gl_REPLACE_FFLUSH): Trigger fseeko module.
* lib/fseeko.c (rpl_fseeko): Quit early on non-seekable files.
* lib/ftello.c (rpl_ftello): Likewise.
* tests/test-fseeko.c (main): Test this.
* tests/test-fseeko.sh: Likewise.
* tests/test-ftello.c (main): Likewise.
* tests/test-ftello.sh: Likewise.
* lib/stdio_.h (fseek, ftell): Simplify, since missing fseeko now
implies replacing fseek.
* modules/stdio (Makefile.am): No longer need HAVE_FSEEKO,
HAVE_FTELLO.
* m4/unistd_h.m4 (gl_UNISTD_H_DEFAULTS): Add lseek info.
* modules/unistd (Makefile.am): Likewise.
* lib/unistd_.h (lseek): Declare a replacement.
* doc/functions/lseek.texi (lseek): Document this fix.
* doc/functions/fseek.texi (fseek): Likewise.
* doc/functions/ftell.texi (ftell): Likewise.
author | Eric Blake <ebb9@byu.net> |
---|---|
date | Thu, 24 May 2007 16:59:20 +0000 |
parents | 8015a071250c |
children | 25ee90a28a16 |
files | ChangeLog MODULES.html.sh doc/functions/fseek.texi doc/functions/ftell.texi doc/functions/lseek.texi lib/fseeko.c lib/ftello.c lib/lseek.c lib/stdio_.h lib/unistd_.h m4/fflush.m4 m4/fseeko.m4 m4/ftello.m4 m4/lseek.m4 m4/unistd_h.m4 modules/fflush modules/fseeko modules/ftello modules/lseek modules/lseek-tests modules/stdio modules/unistd tests/test-fseeko.c tests/test-fseeko.sh tests/test-ftello.c tests/test-ftello.sh tests/test-lseek.c tests/test-lseek.sh |
diffstat | 28 files changed, 280 insertions(+), 43 deletions(-) [+] |
line wrap: on
line diff
--- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,38 @@ +2007-05-24 Eric Blake <ebb9@byu.net> + + Fix lseek on mingw. + * modules/lseek: New module. + * m4/lseek.m4: New file. + * lib/lseek.c: New file. + * modules/lseek-tests: New file. + * tests/test-lseek.c: New file. + * tests/test-lseek.sh: New file. + * MODULES.html.sh: Document lseek module. + * modules/fflush (Depends-on): Add lseek, fseeko. + * modules/fseeko (Depends-on): Likewise. + * modules/ftello (Depends-on): Likewise. + * m4/fseeko.m4 (gl_FUNC_FSEEKO): Replace fseek[o] if lseek is + broken. + * m4/ftello.m4 (gl_FUNC_FTELLO): Replace ftell[o] if lseek is + broken. + * m4/fflush.m4 (gl_REPLACE_FFLUSH): Trigger fseeko module. + * lib/fseeko.c (rpl_fseeko): Quit early on non-seekable files. + * lib/ftello.c (rpl_ftello): Likewise. + * tests/test-fseeko.c (main): Test this. + * tests/test-fseeko.sh: Likewise. + * tests/test-ftello.c (main): Likewise. + * tests/test-ftello.sh: Likewise. + * lib/stdio_.h (fseek, ftell): Simplify, since missing fseeko now + implies replacing fseek. + * modules/stdio (Makefile.am): No longer need HAVE_FSEEKO, + HAVE_FTELLO. + * m4/unistd_h.m4 (gl_UNISTD_H_DEFAULTS): Add lseek info. + * modules/unistd (Makefile.am): Likewise. + * lib/unistd_.h (lseek): Declare a replacement. + * doc/functions/lseek.texi (lseek): Document this fix. + * doc/functions/fseek.texi (fseek): Likewise. + * doc/functions/ftell.texi (ftell): Likewise. + 2007-05-24 Bruno Haible <bruno@clisp.org> * tests/test-vasnprintf-posix.c (test_function): Allow up to 50 bytes
--- a/MODULES.html.sh +++ b/MODULES.html.sh @@ -2029,13 +2029,14 @@ func_module gettimeofday func_module inet_ntop func_module inet_pton + func_module lseek + func_module lstat func_module mkdir func_module mkdtemp func_module mkstemp func_module poll + func_module printf-posix func_module readlink - func_module lstat - func_module printf-posix func_module snprintf-posix func_module sprintf-posix func_module string
--- a/doc/functions/fseek.texi +++ b/doc/functions/fseek.texi @@ -4,10 +4,12 @@ POSIX specification: @url{http://www.opengroup.org/susv3xsh/fseek.html} -Gnulib module: --- +Gnulib module: fseeko Portability problems fixed by Gnulib: @itemize +@item +This function mistakenly succeeds on non-seekable files: mingw. @end itemize Portability problems not fixed by Gnulib: @@ -15,4 +17,7 @@ @item On Windows platforms (excluding Cygwin), this function does not set @code{errno} upon failure. +@item +On platforms where @code{off_t} is a 32-bit type, @code{fseek} does not work +correctly with files larger than 2 GB. The fix is to use fseeko instead. @end itemize
--- a/doc/functions/ftell.texi +++ b/doc/functions/ftell.texi @@ -4,10 +4,12 @@ POSIX specification: @url{http://www.opengroup.org/susv3xsh/ftell.html} -Gnulib module: --- +Gnulib module: ftello Portability problems fixed by Gnulib: @itemize +@item +This function mistakenly succeeds on non-seekable files: mingw. @end itemize Portability problems not fixed by Gnulib: @@ -16,4 +18,7 @@ @code{fflush}, @code{ftell}, @code{ftello}, @code{fgetpos} behave incorrectly on input streams that are opened in @code{O_TEXT} mode and whose contents contains Unix line terminators (LF), on some platforms: mingw. +@item +On platforms where @code{off_t} is a 32-bit type, @code{ftell} does not work +correctly with files larger than 2 GB. The fix is to use ftello instead. @end itemize
--- a/doc/functions/lseek.texi +++ b/doc/functions/lseek.texi @@ -4,10 +4,12 @@ POSIX specification: @url{http://www.opengroup.org/susv3xsh/lseek.html} -Gnulib module: --- +Gnulib module: lseek Portability problems fixed by Gnulib: @itemize +@item +This function mistakenly succeeds on non-seekable files: mingw. @end itemize Portability problems not fixed by Gnulib:
--- a/lib/fseeko.c +++ b/lib/fseeko.c @@ -25,12 +25,19 @@ #undef fseeko #if !HAVE_FSEEKO +# undef fseek # define fseeko fseek #endif int rpl_fseeko (FILE *fp, off_t offset, int whence) { +#if LSEEK_PIPE_BROKEN + /* mingw gives bogus answers rather than failure on non-seekable files. */ + if (lseek (fileno (fp), 0, SEEK_CUR) == -1) + return EOF; +#endif + /* These tests are based on fpurge.c. */ #if defined _IO_ferror_unlocked /* GNU libc, BeOS */ if (fp->_IO_read_end == fp->_IO_read_ptr
--- a/lib/ftello.c +++ b/lib/ftello.c @@ -20,14 +20,24 @@ /* Specification. */ #include <stdio.h> +/* Get lseek. */ +#include <unistd.h> + #undef ftello #if !HAVE_FTELLO +# undef ftell # define ftello ftell #endif off_t rpl_ftello (FILE *fp) { +#if LSEEK_PIPE_BROKEN + /* mingw gives bogus answers rather than failure on non-seekable files. */ + if (lseek (fileno (fp), 0, SEEK_CUR) == -1) + return -1; +#endif + #if defined __SL64 && defined __SCLE /* Cygwin */ if ((fp->_flags & __SL64) == 0) {
new file mode 100644 --- /dev/null +++ b/lib/lseek.c @@ -0,0 +1,40 @@ +/* An lseek() function that detects pipes. + Copyright (C) 2007 Free Software Foundation, Inc. + + 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 2, 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, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +#include <config.h> + +/* Specification. */ +#include <unistd.h> + +/* Get GetFileType. The replacement lseek is only used on mingw, so + this include can be unconditional. */ +#include <windows.h> +#include <errno.h> + +#undef lseek + +off_t +rpl_lseek (int fd, off_t offset, int whence) +{ + /* mingw lseek mistakenly succeeds on pipes, sockets, and terminals. */ + if (GetFileType ((HANDLE) _get_osfhandle (fd)) != FILE_TYPE_DISK) + { + errno = ESPIPE; + return -1; + } + return lseek (fd, offset, whence); +}
--- a/lib/stdio_.h +++ b/lib/stdio_.h @@ -42,9 +42,7 @@ #include <stdarg.h> #include <stddef.h> -#if (@GNULIB_FFLUSH@ && @REPLACE_FFLUSH@) \ - || (@GNULIB_FSEEKO@ && (!@HAVE_FSEEKO@ || @REPLACE_FSEEKO@)) \ - || (@GNULIB_FTELLO@ && (!@HAVE_FTELLO@ || @REPLACE_FTELLO@)) +#if (@GNULIB_FSEEKO@ && @REPLACE_FSEEKO@) || (@GNULIB_FTELLO@ && @REPLACE_FTELLO@) /* Get off_t. */ # include <sys/types.h> #endif @@ -218,16 +216,13 @@ # endif #endif -#if (@GNULIB_FFLUSH@ && @REPLACE_FFLUSH@) || (@GNULIB_FSEEKO@ && @REPLACE_FSEEKO@) -/* Provide fseek, fseeko functions that are aware of a preceding fflush(). */ -# define fseeko rpl_fseeko +#if @GNULIB_FSEEKO@ +# if @REPLACE_FSEEKO@ +/* Provide fseek, fseeko functions that are aware of a preceding + fflush(), and which detect pipes. */ +# define fseeko rpl_fseeko extern int fseeko (FILE *fp, off_t offset, int whence); -# define fseek(fp, offset, whence) fseeko (fp, (off_t)(offset), whence) -#elif @GNULIB_FSEEKO@ -# if !@HAVE_FSEEKO@ -/* Assume 'off_t' is the same type as 'long'. */ -typedef int verify_fseeko_types[2 * (sizeof (off_t) == sizeof (long)) - 1]; -# define fseeko fseek +# define fseek(fp, offset, whence) fseeko (fp, (off_t)(offset), whence) # endif #elif defined GNULIB_POSIXCHECK # undef fseeko @@ -248,13 +243,10 @@ #endif #if @GNULIB_FTELLO@ -# if !@HAVE_FTELLO@ -/* Assume 'off_t' is the same type as 'long'. */ -typedef int verify_ftello_types[2 * (sizeof (off_t) == sizeof (long)) - 1]; -# define ftello ftell -# elif @REPLACE_FTELLO@ +# if @REPLACE_FTELLO@ # define ftello rpl_ftello extern off_t ftello (FILE *fp); +# define ftell(fp) ftello (fp) # endif #elif defined GNULIB_POSIXCHECK # undef ftello
--- a/lib/unistd_.h +++ b/lib/unistd_.h @@ -176,6 +176,25 @@ #endif +#if @GNULIB_LSEEK@ +# if @REPLACE_LSEEK@ +/* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END. + Return the new offset if successful, otherwise -1 and errno set. + See the POSIX:2001 specification + <http://www.opengroup.org/susv3xsh/lseek.html>. */ +# define lseek rpl_lseek + extern off_t lseek (int fd, off_t offset, int whence); +# endif +#elif defined GNULIB_POSIXCHECK +# undef lseek +# define lseek(f,o,w) \ + (GL_LINK_WARNING ("lseek does not fail with ESPIPE on non-seekable " \ + "files on some systems - " \ + "use gnulib module lseek for portability"), \ + lseek (f, o, w)) +#endif + + #if @GNULIB_READLINK@ /* Read the contents of the symbolic link FILE and place the first BUFSIZE bytes of it into BUF. Return the number of bytes placed into BUF if
--- a/m4/fflush.m4 +++ b/m4/fflush.m4 @@ -1,4 +1,4 @@ -#serial 3 +# fflush.m4 serial 4 # Copyright (C) 2007 Free Software Foundation, Inc. # This file is free software; the Free Software Foundation @@ -20,9 +20,9 @@ #include <stdio.h> #include <unistd.h> ]], [[FILE *f = fopen ("conftest.txt", "r"); - char buffer[10]; + char buffer[10]; int fd = fileno (f); - if (!f || 0 > fd || fread (buffer, 1, 5, f) != 5) + if (!f || 0 > fd || fread (buffer, 1, 5, f) != 5) return 2; /* For deterministic results, ensure f read a bigger buffer. */ if (lseek (fd, 0, SEEK_CUR) == 5) @@ -48,4 +48,5 @@ AC_LIBOBJ([fseeko]) AC_REQUIRE([gl_STDIO_H_DEFAULTS]) REPLACE_FFLUSH=1 + REPLACE_FSEEKO=1 ])
--- a/m4/fseeko.m4 +++ b/m4/fseeko.m4 @@ -1,4 +1,4 @@ -# fseeko.m4 serial 2 +# fseeko.m4 serial 3 dnl Copyright (C) 2007 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -12,10 +12,11 @@ AC_CACHE_CHECK([for fseeko], [gl_cv_func_fseeko], [ AC_TRY_LINK([#include <stdio.h>], [fseeko (stdin, 0, 0);], - [gl_cv_func_fseeko=yes], [gl_cv_func_fseeko=no]) + [gl_cv_func_fseeko=yes], [gl_cv_func_fseeko=no]) ]) if test $gl_cv_func_fseeko = no; then HAVE_FSEEKO=0 + gl_REPLACE_FSEEKO elif test $gl_cv_var_stdin_large_offset = no; then gl_REPLACE_FSEEKO fi
--- a/m4/ftello.m4 +++ b/m4/ftello.m4 @@ -1,4 +1,4 @@ -# ftello.m4 serial 2 +# ftello.m4 serial 3 dnl Copyright (C) 2007 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -12,10 +12,11 @@ AC_CACHE_CHECK([for ftello], [gl_cv_func_ftello], [ AC_TRY_LINK([#include <stdio.h>], [ftello (stdin);], - [gl_cv_func_ftello=yes], [gl_cv_func_ftello=no]) + [gl_cv_func_ftello=yes], [gl_cv_func_ftello=no]) ]) if test $gl_cv_func_ftello = no; then HAVE_FTELLO=0 + gl_REPLACE_FTELLO elif test $gl_cv_var_stdin_large_offset = no; then gl_REPLACE_FTELLO fi
new file mode 100644 --- /dev/null +++ b/m4/lseek.m4 @@ -0,0 +1,30 @@ +# lseek.m4 serial 1 +dnl Copyright (C) 2007 Free Software Foundation, Inc. +dnl This file is free software; the Free Software Foundation +dnl gives unlimited permission to copy and/or distribute it, +dnl with or without modifications, as long as this notice is preserved. + +AC_DEFUN([gl_FUNC_LSEEK], +[ + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + AC_REQUIRE([AC_PROG_CC]) + AC_CACHE_CHECK([whether lseek detects pipes], [gl_cv_func_lseek_pipe], + [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <unistd.h>], +[#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__ +/* mingw mistakenly returns 0 when trying to seek on pipes. */ + Choke me. +#endif])], + [gl_cv_func_lseek_pipe=yes], [gl_cv_func_lseek_pipe=no])]) + if test $gl_cv_func_lseek_pipe = no; then + gl_REPLACE_LSEEK + fi +]) + +AC_DEFUN([gl_REPLACE_LSEEK], +[ + AC_LIBOBJ([lseek]) + AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) + REPLACE_LSEEK=1 + AC_DEFINE([LSEEK_PIPE_BROKEN], [1], + [Define to 1 if lseek does not detect pipes.]) +])
--- a/m4/unistd_h.m4 +++ b/m4/unistd_h.m4 @@ -1,4 +1,4 @@ -# unistd_h.m4 serial 6 +# unistd_h.m4 serial 7 dnl Copyright (C) 2006-2007 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -39,6 +39,7 @@ GNULIB_FTRUNCATE=0; AC_SUBST([GNULIB_FTRUNCATE]) GNULIB_GETCWD=0; AC_SUBST([GNULIB_GETCWD]) GNULIB_GETLOGIN_R=0; AC_SUBST([GNULIB_GETLOGIN_R]) + GNULIB_LSEEK=0; AC_SUBST([GNULIB_LSEEK]) GNULIB_READLINK=0; AC_SUBST([GNULIB_READLINK]) GNULIB_SLEEP=0; AC_SUBST([GNULIB_SLEEP]) dnl Assume proper GNU behavior unless another module says otherwise. @@ -50,4 +51,5 @@ REPLACE_CHOWN=0; AC_SUBST([REPLACE_CHOWN]) REPLACE_FCHDIR=0; AC_SUBST([REPLACE_FCHDIR]) REPLACE_GETCWD=0; AC_SUBST([REPLACE_GETCWD]) + REPLACE_LSEEK=0; AC_SUBST([REPLACE_LSEEK]) ])
--- a/modules/fflush +++ b/modules/fflush @@ -3,16 +3,16 @@ Files: lib/fflush.c -lib/fseeko.c m4/fflush.m4 -m4/fseeko.m4 Depends-on: fpurge ftello freading +lseek stdio unistd +fseeko configure.ac-early: AC_REQUIRE([AC_FUNC_FSEEKO])
--- a/modules/fseeko +++ b/modules/fseeko @@ -6,6 +6,7 @@ m4/fseeko.m4 Depends-on: +lseek stdio configure.ac-early:
--- a/modules/ftello +++ b/modules/ftello @@ -6,6 +6,7 @@ m4/ftello.m4 Depends-on: +lseek stdio configure.ac-early:
new file mode 100644 --- /dev/null +++ b/modules/lseek @@ -0,0 +1,24 @@ +Description: +lseek() function: Reposition a file descriptor. + +Files: +lib/lseek.c +m4/lseek.m4 + +Depends-on: +unistd + +configure.ac: +gl_FUNC_LSEEK +gl_UNISTD_MODULE_INDICATOR([lseek]) + +Makefile.am: + +Include: +<unistd.h> + +License: +LGPL + +Maintainer: +Eric Blake
new file mode 100644 --- /dev/null +++ b/modules/lseek-tests @@ -0,0 +1,13 @@ +Files: +tests/test-lseek.c +tests/test-lseek.sh + +Depends-on: + +configure.ac: + +Makefile.am: +TESTS += test-lseek.sh +TESTS_ENVIRONMENT += EXEEXT='@EXEEXT@' srcdir='$(srcdir)' +check_PROGRAMS += test-lseek +EXTRA_DIST += test-lseek.sh
--- a/modules/stdio +++ b/modules/stdio @@ -46,9 +46,7 @@ -e 's|@''REPLACE_VSPRINTF''@|$(REPLACE_VSPRINTF)|g' \ -e 's|@''HAVE_VASPRINTF''@|$(HAVE_VASPRINTF)|g' \ -e 's|@''REPLACE_VASPRINTF''@|$(REPLACE_VASPRINTF)|g' \ - -e 's|@''HAVE_FSEEKO''@|$(HAVE_FSEEKO)|g' \ -e 's|@''REPLACE_FSEEKO''@|$(REPLACE_FSEEKO)|g' \ - -e 's|@''HAVE_FTELLO''@|$(HAVE_FTELLO)|g' \ -e 's|@''REPLACE_FTELLO''@|$(REPLACE_FTELLO)|g' \ -e 's|@''REPLACE_FFLUSH''@|$(REPLACE_FFLUSH)|g' \ -e '/definition of GL_LINK_WARNING/r $(LINK_WARNING_H)' \
--- a/modules/unistd +++ b/modules/unistd @@ -29,6 +29,7 @@ -e 's|@''GNULIB_FTRUNCATE''@|$(GNULIB_FTRUNCATE)|g' \ -e 's|@''GNULIB_GETCWD''@|$(GNULIB_GETCWD)|g' \ -e 's|@''GNULIB_GETLOGIN_R''@|$(GNULIB_GETLOGIN_R)|g' \ + -e 's|@''GNULIB_LSEEK''@|$(GNULIB_LSEEK)|g' \ -e 's|@''GNULIB_READLINK''@|$(GNULIB_READLINK)|g' \ -e 's|@''GNULIB_SLEEP''@|$(GNULIB_SLEEP)|g' \ -e 's|@''HAVE_DUP2''@|$(HAVE_DUP2)|g' \ @@ -39,6 +40,7 @@ -e 's|@''REPLACE_CHOWN''@|$(REPLACE_CHOWN)|g' \ -e 's|@''REPLACE_FCHDIR''@|$(REPLACE_FCHDIR)|g' \ -e 's|@''REPLACE_GETCWD''@|$(REPLACE_GETCWD)|g' \ + -e 's|@''REPLACE_LSEEK''@|$(REPLACE_LSEEK)|g' \ < $(srcdir)/unistd_.h; \ } > $@-t mv $@-t $@
--- a/tests/test-fseeko.c +++ b/tests/test-fseeko.c @@ -25,8 +25,12 @@ #include <sys/types.h> int -main () +main (int argc, char **argv) { - /* This test assumes stdin is seekable. */ - return fseeko (stdin, (off_t)0, SEEK_CUR) != 0; + /* Assume stdin is seekable iff argc > 1. */ + int expected = argc > 1 ? 0 : -1; + /* Exit with success only if fseek/fseeko agree. */ + int r1 = fseeko (stdin, (off_t)0, SEEK_CUR); + int r2 = fseek (stdin, (long)0, SEEK_CUR); + return ! (r1 == r2 && r1 == expected); }
--- a/tests/test-fseeko.sh +++ b/tests/test-fseeko.sh @@ -1,3 +1,5 @@ #!/bin/sh -./test-fseeko${EXEEXT} < "$srcdir/test-fseeko.sh" +./test-fseeko${EXEEXT} 1 < "$srcdir/test-fseeko.sh" || exit 1 +echo hi | ./test-fseeko${EXEEXT} || exit 1 +exit 0
--- a/tests/test-ftello.c +++ b/tests/test-ftello.c @@ -25,9 +25,12 @@ #include <sys/types.h> int -main () +main (int argc, char **argv) { - /* This test assumes stdin is seekable. */ - off_t pos = ftello (stdin); - return pos < 0; + /* Assume stdin is seekable iff argc > 1. */ + int expected = argc > 1 ? 0 : -1; + /* Exit with success only if ftell/ftello agree. */ + off_t pos1 = ftello (stdin); + long pos2 = ftell (stdin); + return ! (pos1 == pos2 && pos1 == expected); }
--- a/tests/test-ftello.sh +++ b/tests/test-ftello.sh @@ -1,3 +1,5 @@ #!/bin/sh -./test-ftello${EXEEXT} < "$srcdir/test-ftello.sh" +./test-ftello${EXEEXT} 1 < "$srcdir/test-ftello.sh" || exit 1 +echo hi | ./test-ftello${EXEEXT} || exit 1 +exit 0
new file mode 100644 --- /dev/null +++ b/tests/test-lseek.c @@ -0,0 +1,29 @@ +/* Test of lseek() function. + Copyright (C) 2007 Free Software Foundation, Inc. + + 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 2, 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, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* Written by Eric Blake, 2007. */ + +#include <config.h> + +#include <unistd.h> + +int +main () +{ + /* Exit with success only if stdin is seekable. */ + return lseek (0, (off_t)0, SEEK_CUR) < 0; +}