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author | Roland McGrath <roland@gnu.org> | 1996-06-16 03:49:40 +0000 |
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committer | Roland McGrath <roland@gnu.org> | 1996-06-16 03:49:40 +0000 |
commit | 5fbef188648f5150617e0a14f1011e600f1b3a0f (patch) | |
tree | 81334ea044e87bc2cf489cc8cb49adab73b9d6dd /hurd/get-host.c | |
parent | f9496a7b54c27580d4b30cc2b2b40e86738b2b81 (diff) | |
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* hurd/Makefile (routines): Add get-host, set-host.
(distribute): Add hurdhost.h.
* hurd/hurdhost.h: New file.
* sysdeps/mach/hurd/gethostname.c: Use _hurd_get_host_config.
* sysdeps/mach/hurd/gethostid.c: Likewise.
* sysdeps/mach/hurd/sethostname.c: Use _hurd_set_host_config.
* sysdeps/mach/hurd/sethostid.c: Likewise.
* hurd/get-host.c: New file.
* hurd/set-host.c: New file.
* math/Makefile (headers): Add fpu_control.h.
(aux): New variable, list fpu_control and setfpucw.
* sysdeps/generic/fpu_control.c: New file.
* sysdeps/stub/fpu_control.h: New file.
* sysdeps/unix/sysv/linux/m68k/fpu_control.h: Moved to ...
* sysdeps/m68k/fpu_control.h: here.
* sysdeps/unix/sysv/linux/i386/fpu_control.h: Moved to ...
* sysdeps/i386/fpu_control.h: here.
* sysdeps/unix/sysv/linux/alpha/fpu_control.h: Moved to ...
* sysdeps/alpha/fpu/fpu_control.h: here. Fixed copyright.
* sysdeps/unix/sysv/linux/alpha/Makefile (sysdep_routines): Remove
setfpucw, fpu_control.
* sysdeps/unix/sysv/linux/alpha/fpu_control.c: File removed.
* sysdeps/unix/sysv/linux/setfpucw.c: Moved to ...
* sysdeps/generic/setfpucw.c: here.
(__fpu_control): Variable removed.
(__setfpucw): Use SET even if zero.
Diffstat (limited to 'hurd/get-host.c')
-rw-r--r-- | hurd/get-host.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/hurd/get-host.c b/hurd/get-host.c new file mode 100644 index 0000000000..231ee59d88 --- /dev/null +++ b/hurd/get-host.c @@ -0,0 +1,57 @@ +/* Get a host configuration item kept as the whole contents of a file. +Copyright (C) 1996 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 Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <hurd.h> +#include "hurdhost.h" + +ssize_t +_hurd_get_host_config (const char *item, char *buf, size_t buflen) +{ + error_t err; + char *data; + mach_msg_type_number_t nread, more; + file_t config = __file_name_lookup (item, O_RDONLY, 0); + if (config == MACH_PORT_NULL) + return -1; + + data = buf; + err = __io_read (config, &data, &nread, -1, buflen); + if (! err) + /* Check if there is more in the file we didn't read. */ + err = __io_readable (config, &more); + __mach_port_deallocate (__mach_task_self (), config); + if (err) + return __hurd_fail (err); + if (data != buf) + { + memcpy (buf, data, nread); + __vm_deallocate (__mach_task_self (), (vm_address_t) data, nread); + } + + /* Remove newlines in case someone wrote the file by hand. */ + while (buf[nread - 1] == '\n') + buf[--nread] = '\0'; + + if (more) + /* If we didn't read the whole file, tell the caller to use a bigger + buffer next time. */ + return __hurd_fail (ENAMETOOLONG); + + return nread; +} |