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1999-04-26 Roland McGrath <roland@baalperazim.frob.com>

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* hurd/get-host.c (_hurd_get_host_config): If ENOENT opening file, 
return success with empty value.
This commit is contained in:
Roland McGrath 1999-04-26 13:37:43 +00:00
parent fc549258a1
commit 1d721dae86
1 changed files with 21 additions and 4 deletions
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25
hurd/get-host.c
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@ -1,5 +1,5 @@
/* Get a host configuration item kept as the whole contents of a file.
Copyright (C) 1996, 1997 Free Software Foundation, Inc.
Copyright (C) 1996, 1997, 1999 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
@ -27,9 +27,26 @@ _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;
file_t config;
err = __hurd_file_name_lookup (&_hurd_ports_use, &__getdport, 0,
item, O_RDONLY, 0, &config);
switch (err)
{
case 0: /* Success; read file contents below. */
break;
case ENOENT: /* ? Others? All errors? */
/* The file does not exist, so no value has been set. Rather than
causing gethostname et al to fail with ENOENT, give an empty value
as other systems do before sethostname has been called. */
if (buflen != 0)
*buf = '\0';
return 0;
default:
return __hurd_fail (err);
}
data = buf;
err = __io_read (config, &data, &nread, -1, buflen);