diff options
Diffstat (limited to 'posix')
| -rw-r--r-- | posix/Makefile | 3 | ||||
| -rw-r--r-- | posix/Versions | 6 | ||||
| -rw-r--r-- | posix/streams-compat.c | 101 |
3 files changed, 109 insertions, 1 deletions
diff --git a/posix/Makefile b/posix/Makefile index 93c3a290d7..8ac6743ad7 100644 --- a/posix/Makefile +++ b/posix/Makefile @@ -64,7 +64,8 @@ routines := \ spawnattr_getsigmask spawnattr_getschedpolicy spawnattr_getschedparam \ spawnattr_setsigmask spawnattr_setschedpolicy spawnattr_setschedparam \ posix_madvise \ - get_child_max sched_cpucount sched_cpualloc sched_cpufree + get_child_max sched_cpucount sched_cpualloc sched_cpufree \ + streams-compat aux := init-posix environ tests := test-errno tstgetopt testfnm runtests runptests \ diff --git a/posix/Versions b/posix/Versions index ad693ae9a7..7d06a6d0c0 100644 --- a/posix/Versions +++ b/posix/Versions @@ -80,6 +80,10 @@ libc { # w* waitid; wordexp; wordfree; } + GLIBC_2.1 { + # Compat symbols for the obsolete, unimplemented XSI streams extension. + fattach; fdetach; getmsg; getpmsg; isastream; putmsg; putpmsg; + } GLIBC_2.1.2 { # functions used in other libraries __vfork; @@ -141,6 +145,8 @@ libc { posix_spawn_file_actions_addchdir_np; posix_spawn_file_actions_addfchdir_np; } + GLIBC_2.30 { + } GLIBC_PRIVATE { __libc_fork; __libc_pread; __libc_pwrite; __nanosleep_nocancel; __pause_nocancel; diff --git a/posix/streams-compat.c b/posix/streams-compat.c new file mode 100644 index 0000000000..30e9b5743a --- /dev/null +++ b/posix/streams-compat.c @@ -0,0 +1,101 @@ +/* Compatibility symbols for the unimplemented XSI STREAMS extension. + Copyright (C) 1998-2019 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 <shlib-compat.h> + +#if SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_30) + +# include <errno.h> +# include <fcntl.h> + +struct strbuf; + +int +attribute_compat_text_section +fattach (int fildes, const char *path) +{ + __set_errno (ENOSYS); + return -1; +} +compat_symbol (libc, fattach, fattach, GLIBC_2_1); + +int +attribute_compat_text_section +fdetach (const char *path) +{ + __set_errno (ENOSYS); + return -1; +} +compat_symbol (libc, fdetach, fdetach, GLIBC_2_1); + + +int +attribute_compat_text_section +getmsg (int fildes, struct strbuf *ctlptr, struct strbuf *dataptr, int *flagsp) +{ + __set_errno (ENOSYS); + return -1; +} +compat_symbol (libc, getmsg, getmsg, GLIBC_2_1); + +int +attribute_compat_text_section +getpmsg (int fildes, struct strbuf *ctlptr, struct strbuf *dataptr, int *bandp, + int *flagsp) +{ + __set_errno (ENOSYS); + return -1; +} +compat_symbol (libc, getpmsg, getpmsg, GLIBC_2_1); + +int +attribute_compat_text_section +isastream (int fildes) +{ + /* In general we do not have a STREAMS implementation and therefore + return 0. But for invalid file descriptors we have to return an + error. */ + if (__fcntl (fildes, F_GETFD) < 0) + return -1; + + /* No STREAM. */ + return 0; +} +compat_symbol (libc, isastream, isastream, GLIBC_2_1); + +int +attribute_compat_text_section +putmsg (int fildes, const struct strbuf *ctlptr, const struct strbuf *dataptr, + int flags) +{ + __set_errno (ENOSYS); + return -1; +} +compat_symbol (libc, putmsg, putmsg, GLIBC_2_1); + +int +attribute_compat_text_section +putpmsg (int fildes, const struct strbuf *ctlptr, const struct strbuf *dataptr, + int band, int flags) +{ + __set_errno (ENOSYS); + return -1; +} +compat_symbol (libc, putpmsg, putpmsg, GLIBC_2_1); + +#endif /* SHLIB_COMPAT */ |