tcache answer - plan9port - [fork] Plan 9 from user space
HTML git clone git://src.adamsgaard.dk/plan9port
DIR Log
DIR Files
DIR Refs
DIR README
DIR LICENSE
---
DIR commit 70723aae3c508956008f10d0e98a5bb0604c4975
DIR parent a1d42887d63ed853e07242d76b38614ad4eb2c76
HTML Author: rsc <devnull@localhost>
Date: Tue, 4 Jan 2005 22:19:25 +0000
cache answer
Diffstat:
M src/lib9/sysname.c | 31 +++++++++++++++++++------------
1 file changed, 19 insertions(+), 12 deletions(-)
---
DIR diff --git a/src/lib9/sysname.c b/src/lib9/sysname.c
t@@ -4,20 +4,27 @@
char*
sysname(void)
{
- char buf[300], *p, *q;
+ static char buf[512];
+ char *p, *q;
- if((q = getenv("sysname")) == nil){
- if(gethostname(buf, sizeof buf) < 0)
- goto err;
+ if(buf[0])
+ return buf;
+
+ if((q = getenv("sysname")) != nil && q[0] != 0){
+ utfecpy(buf, buf+sizeof buf, q);
+ free(q);
+ return buf;
+ }
+ if(q)
+ free(q);
+
+ if(gethostname(buf, sizeof buf) >= 0){
buf[sizeof buf-1] = 0;
- q = strdup(buf);
- if(q == nil)
- goto err;
+ if((p = strchr(buf, '.')) != nil)
+ *p = 0;
+ return buf;
}
- if((p = strchr(q, '.')) != nil)
- *p = 0;
- return q;
-err:
- return "gnot";
+ strcpy(buf, "gnot");
+ return buf;
}