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experiment: translation from standard notations to plan 9 in netmkaddr

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rsc 2006-07-23 02:56:37 +00:00
parent 73a5509ae9
commit 6215fd56f1
3 changed files with 36 additions and 13 deletions
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16
man/man3/dial.3
View file

@ -162,6 +162,22 @@ It takes an address along with a default network and service to use
if they are not specified in the address.
It returns a pointer to static data holding the actual address to use.
.PP
.I Netmkaddr
also translates Unix conventions into Plan 9 syntax.
If
.I addr
is the name of a local file or Unix domain socket,
.I netmkaddr
will return
.IB unix ! addr \fR.
If
.I addr
is of the form
.IB host : port \fR,
.I netmkaddr
will return
.IB net ! host ! port \fR.
.PP
.I Dialparse
parses a network address as described above
into a network name, a Unix domain socket address,

3
src/lib9/dial.c
View file

@ -118,6 +118,9 @@ Unix:
free(buf);
return -1;
}
/* Allow regular files in addition to Unix sockets. */
if((s = open(unix, ORDWR)) >= 0)
return s;
memset(&su, 0, sizeof su);
su.sun_family = AF_UNIX;
if(strlen(unix)+1 > sizeof su.sun_path){

30
src/lib9/netmkaddr.c
View file

@ -16,21 +16,25 @@ netmkaddr(char *linear, char *defnet, char *defsrv)
*/
cp = strchr(linear, '!');
if(cp == 0){
if(defnet==0){
if(defsrv)
snprint(addr, sizeof(addr), "net!%s!%s",
linear, defsrv);
else
snprint(addr, sizeof(addr), "net!%s", linear);
if(defnet == 0)
defnet = "net";
/* allow unix sockets to omit unix! prefix */
if(access(linear, 0) >= 0){
snprint(addr, sizeof(addr), "unix!%s", linear);
return addr;
}
else {
if(defsrv)
snprint(addr, sizeof(addr), "%s!%s!%s", defnet,
linear, defsrv);
else
snprint(addr, sizeof(addr), "%s!%s", defnet,
linear);
/* allow host:service in deference to Unix convention */
if((cp = strchr(linear, ':')) != nil){
snprint(addr, sizeof(addr), "%s!%.*s!%s",
defnet, utfnlen(linear, cp-linear),
linear, cp+1);
return addr;
}
if(defsrv)
snprint(addr, sizeof(addr), "%s!%s!%s",
defnet, linear, defsrv);
else
snprint(addr, sizeof(addr), "%s!%s", defnet, linear);
return addr;
}