Plan 9 from Bell Labs’s /usr/web/sources/contrib/rsc/snmp/snmpdump.c

Copyright © 2021 Plan 9 Foundation.
Distributed under the MIT License.
Download the Plan 9 distribution.


#include <u.h>
#include <libc.h>
#include <ip.h>
#include "a1.h"

int chatty = 0;

void
usage(void)
{
	fprint(2, "usage: fmt <file\n");
	exits("usage");
}

char*
ct(ulong t)
{
	char *p;

	p = ctime(t);
	if(p[strlen(p)-1] == '\n')
		p[strlen(p)-1] = '\0';
	return p;
}

void
main(int argc, char **argv)
{
	int n, m;
	uchar *p;
	uchar buf[65536];
	Snmp s;

	fmtinstall('I', eipfmt);
	fmtinstall('E', eipfmt);

	ARGBEGIN{
	default:
		usage();
	}ARGEND

	if(argc != 0)
		usage();

	n = readn(0, buf, sizeof buf);
	for(p=buf; p<buf+n; p+=m+8){
		m = nhgetl(p+4);
		print("#%ld.  %s %I/%d -> %I/%d ", p-buf, ct(nhgetl(p)),
			p+8, nhgets(p+8+16+16),
			p+8+16, nhgets(p+8+16+16+2));
		if(Sparse(p+8+36, m-36, &s) < 0)
			print("format error\n");
		else
			Sprint(&s);
	}
}

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