Mercurial > hg > octave-lojdl > gnulib-hg
changeset 9154:0a3b6ec42c55
Another lseek bug on BeOS.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Sun, 19 Aug 2007 09:10:56 +0000 |
| parents | f03082407073 |
| children | 37e28ffbab9e |
| files | ChangeLog doc/functions/lseek.texi tests/test-lseek.c |
| diffstat | 3 files changed, 19 insertions(+), 1 deletions(-) [+] |
line wrap: on
line diff
--- a/ChangeLog +++ b/ChangeLog @@ -1,4 +1,9 @@ -2007-08-18 Bruno Haible <bruno@clisp.org> +2007-08-19 Bruno Haible <bruno@clisp.org> + + * tests/test-lseek.c (main): Disable a test for BeOS. + * doc/functions/lseek.texi: Document the BeOS bug. + +2007-08-19 Bruno Haible <bruno@clisp.org> Eric Blake <ebb9@byu.net> * lib/lseek.c: Include <sys/stat.h>.
--- a/doc/functions/lseek.texi +++ b/doc/functions/lseek.texi @@ -27,4 +27,9 @@ @code{errno} to @code{EINVAL} and return -1, but in this situation a @code{SIGSYS} signal is raised on some platforms: IRIX 6.5. +@item +When the @code{lseek} function fails, POSIX says that the file offset remains +unchanged. But on some platforms, attempting to set a negative file offset +fails and sets the file offset to 0: +BeOS. @end itemize
--- a/tests/test-lseek.c +++ b/tests/test-lseek.c @@ -49,7 +49,11 @@ ASSERT (lseek (0, (off_t)-4, SEEK_CUR) == -1); ASSERT (errno == EINVAL); errno = 0; +#if ! defined __BEOS__ + /* POSIX says that the last lseek call, when failing, does not change + the current offset. But BeOS sets it to 0. */ ASSERT (lseek (0, (off_t)0, SEEK_CUR) == 2); +#endif #if 0 /* leads to SIGSYS on IRIX 6.5 */ ASSERT (lseek (0, (off_t)0, (SEEK_SET | SEEK_CUR | SEEK_END) + 1) == -1); ASSERT (errno == EINVAL); @@ -59,7 +63,11 @@ ASSERT (lseek (1, (off_t)-4, SEEK_CUR) == -1); ASSERT (errno == EINVAL); errno = 0; +#if ! defined __BEOS__ + /* POSIX says that the last lseek call, when failing, does not change + the current offset. But BeOS sets it to 0. */ ASSERT (lseek (1, (off_t)0, SEEK_CUR) == 2); +#endif #if 0 /* leads to SIGSYS on IRIX 6.5 */ ASSERT (lseek (1, (off_t)0, (SEEK_SET | SEEK_CUR | SEEK_END) + 1) == -1); ASSERT (errno == EINVAL);