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/*
* UNIX An implementation of the AF_UNIX network domain for the
* LINUX operating system. UNIX is implemented using the
* BSD Socket interface as the means of communication with
* the user level.
*
* The functions in this file provide an interface between
* the PROC file system and the "unix" family of networking
* protocols. It is mainly used for debugging and statistics.
*
* Version: @(#)proc.c 1.0.4 05/23/93
*
* Authors: Ross Biro, <bir7@leland.Stanford.Edu>
* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
* Gerald J. Heim, <heim@peanuts.informatik.uni-tuebingen.de>
* Fred Baumgarten, <dc6iq@insu1.etec.uni-kalrsruhe.de>
*
* Fixes:
* Dmitry Gorodchanin : /proc locking fix
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/autoconf.h>
#include <linux/sched.h>
#include <linux/string.h>
#include <linux/socket.h>
#include <linux/net.h>
#include <linux/ddi.h>
#include <linux/un.h>
#include <linux/param.h>
#include "unix.h"
/* Called from PROCfs. */
int unix_get_info(char *buffer)
{
char *pos;
int i;
pos = buffer;
pos += sprintf(pos, "Num RefCount Protocol Flags Type St Path\n");
for(i = 0; i < NSOCKETS; i++) {
if (unix_datas[i].refcnt>0) {
pos += sprintf(pos, "%2d: %08X %08X %08lX %04X %02X", i,
unix_datas[i].refcnt,
unix_datas[i].protocol,
unix_datas[i].socket->flags,
unix_datas[i].socket->type,
unix_datas[i].socket->state
);
/* If socket is bound to a filename, we'll print it. */
if(unix_datas[i].sockaddr_len>0) {
pos += sprintf(pos, " %s\n",
unix_datas[i].sockaddr_un.sun_path);
} else { /* just add a newline */
*pos='\n';
pos++;
*pos='\0';
}
/*
* Check whether buffer _may_ overflow in the next loop.
* Since sockets may have very very long paths, we make
* PATH_MAX+80 the minimum space left for a new line.
*/
if (pos > buffer+PAGE_SIZE-80-PATH_MAX) {
printk("UNIX: netinfo: oops, too many sockets.\n");
return(pos - buffer);
}
}
}
return(pos - buffer);
}