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authorRoland McGrath <roland@gnu.org>1999-04-26 13:37:43 +0000
committerRoland McGrath <roland@gnu.org>1999-04-26 13:37:43 +0000
commit1d721dae86d18b9d79ed36e82519708eea552d79 (patch)
treee5a831646a5cb3f0da1e25513d45928ffb5da887 /hurd/get-host.c
parentfc549258a1d9d88eaa87fbd003761d37c50f1845 (diff)
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1999-04-26 Roland McGrath <roland@baalperazim.frob.com>
* hurd/get-host.c (_hurd_get_host_config): If ENOENT opening file, return success with empty value.
Diffstat (limited to 'hurd/get-host.c')
-rw-r--r--hurd/get-host.c25
1 files changed, 21 insertions, 4 deletions
diff --git a/hurd/get-host.c b/hurd/get-host.c
index e57de6a..7310d27 100644
--- a/hurd/get-host.c
+++ b/hurd/get-host.c
@@ -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);