jimzah/freebsd-src
1
0
Fork 0
mirror of https://github.com/freebsd/freebsd-src.git synced 2024-12-02 10:42:45 +00:00
Code Issues Actions 2 Packages Projects Releases Wiki Activity

Added dev_linkf() function (dev_link() + printf-style arguments)

Browse Source 
Reviewed by:	julian@freebsd.org
This commit is contained in:
Marc G. Fournier 1996-03-28 14:32:27 +00:00
parent 734daefc97
commit 0d5b12e38e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=14876
1 changed files with 54 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
sys/miscfs/devfs/devfs_tree.c
View File

@ -2,7 +2,7 @@
/*
* Written by Julian Elischer (julian@DIALix.oz.au)
*
* $Header: /home/ncvs/src/sys/miscfs/devfs/devfs_tree.c,v 1.18 1996/02/18 07:29:53 julian Exp $
* $Header: /home/ncvs/src/sys/miscfs/devfs/devfs_tree.c,v 1.19 1996/03/25 21:56:59 julian Exp $
*/
#include "param.h"
@ -1017,3 +1017,56 @@ void *dev_link(char *path, char *name, void *original)
return new_dev;
}
/***********************************************************************\
* Add the named device entry into the given directory, and make it *
* a link to the already created device given as an arg.. *
* this function is exported.. see sys/devfsext.h *
\***********************************************************************/
void *dev_linkf(void *original, char *fmt, ...)
{
devnm_p new_dev;
devnm_p orig = (devnm_p) original;
dn_p dirnode; /* devnode for parent directory */
int retval;
int major ;
union typeinfo by;
va_list ap;
char *p, buf[256]; /* XXX */
int i;
va_start(ap, fmt);
i = kvprintf(fmt, NULL, (void*)buf, 32, ap);
va_end(ap);
buf[i] = '\0';
p = NULL;
for(i=strlen(buf); i>0; i--)
if(buf[i] == '/') {
p=&buf[i];
buf[i]=0;
break;
}
DBPRINT(("dev_add\n"));
/*
* The DEV_CDEV below is not used other than it must NOT be DEV_DIR
* the correctness of original shuold be checked..
*/
if (p) {
*p++ = '\0';
retval = dev_finddir(buf,NULL,1,&dirnode);
if (retval) return 0;
if( dev_add_name(p, dirnode, NULL, orig->dnp, &new_dev))
return NULL;
} else {
retval = dev_finddir("/",NULL,1,&dirnode);
if (retval) return 0;
if( dev_add_name(buf, dirnode, NULL, orig->dnp, &new_dev))
return NULL;
}
return new_dev;
}