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mirror of https://git.FreeBSD.org/src.git synced 2024-12-15 10:17:20 +00:00
freebsd/lib/libbsdstat/bsdstat.c
Pedro F. Giffuni 5e53a4f90f lib: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-26 02:00:33 +00:00

209 lines
5.2 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2002-2007 Sam Leffler, Errno Consulting
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer,
* without modification.
* 2. Redistributions in binary form must reproduce at minimum a disclaimer
* similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
* redistribution must be conditioned upon including a substantially
* similar Disclaimer requirement for further binary redistribution.
*
* NO WARRANTY
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
* OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGES.
*
* $FreeBSD$
*/
#include <stdio.h>
#include <string.h>
#include "bsdstat.h"
static void
bsdstat_setfmt(struct bsdstat *sf, const char *fmt0)
{
#define N(a) (sizeof(a)/sizeof(a[0]))
char fmt[4096];
char *fp, *tok;
int i, j;
j = 0;
strlcpy(fmt, fmt0, sizeof(fmt));
for (fp = fmt; (tok = strsep(&fp, ", ")) != NULL;) {
for (i = 0; i < sf->nstats; i++)
if (strcasecmp(tok, sf->stats[i].name) == 0)
break;
if (i >= sf->nstats) {
fprintf(stderr, "%s: unknown statistic name \"%s\" "
"skipped\n", sf->name, tok);
continue;
}
if (j+4 > (int) sizeof(sf->fmts)) {
fprintf(stderr, "%s: not enough room for all stats; "
"stopped at %s\n", sf->name, tok);
break;
}
if (j != 0)
sf->fmts[j++] = ' ';
sf->fmts[j++] = FMTS_IS_STAT;
sf->fmts[j++] = i & 0xff;
sf->fmts[j++] = (i >> 8) & 0xff;
}
sf->fmts[j] = '\0';
#undef N
}
static void
bsdstat_collect(struct bsdstat *sf)
{
fprintf(stderr, "%s: don't know how to collect data\n", sf->name);
}
static void
bsdstat_update_tot(struct bsdstat *sf)
{
fprintf(stderr, "%s: don't know how to update total data\n", sf->name);
}
static int
bsdstat_get(struct bsdstat *sf, int s, char b[] __unused, size_t bs __unused)
{
fprintf(stderr, "%s: don't know how to get stat #%u\n", sf->name, s);
return 0;
}
static void
bsdstat_print_header(struct bsdstat *sf, FILE *fd)
{
const unsigned char *cp;
int i;
const struct fmt *f;
for (cp = sf->fmts; *cp != '\0'; cp++) {
if (*cp == FMTS_IS_STAT) {
i = *(++cp);
i |= ((int) *(++cp)) << 8;
f = &sf->stats[i];
fprintf(fd, "%*s", f->width, f->label);
} else
putc(*cp, fd);
}
putc('\n', fd);
}
static void
bsdstat_print_current(struct bsdstat *sf, FILE *fd)
{
char buf[32];
const unsigned char *cp;
int i;
const struct fmt *f;
for (cp = sf->fmts; *cp != '\0'; cp++) {
if (*cp == FMTS_IS_STAT) {
i = *(++cp);
i |= ((int) *(++cp)) << 8;
f = &sf->stats[i];
if (sf->get_curstat(sf, i, buf, sizeof(buf)))
fprintf(fd, "%*s", f->width, buf);
} else
putc(*cp, fd);
}
putc('\n', fd);
}
static void
bsdstat_print_total(struct bsdstat *sf, FILE *fd)
{
char buf[32];
const unsigned char *cp;
const struct fmt *f;
int i;
for (cp = sf->fmts; *cp != '\0'; cp++) {
if (*cp == FMTS_IS_STAT) {
i = *(++cp);
i |= ((int) *(++cp)) << 8;
f = &sf->stats[i];
if (sf->get_totstat(sf, i, buf, sizeof(buf)))
fprintf(fd, "%*s", f->width, buf);
} else
putc(*cp, fd);
}
putc('\n', fd);
}
static void
bsdstat_print_verbose(struct bsdstat *sf, FILE *fd)
{
const struct fmt *f;
char s[32];
int i, width;
width = 0;
for (i = 0; i < sf->nstats; i++) {
f = &sf->stats[i];
if (f->width > width)
width = f->width;
}
for (i = 0; i < sf->nstats; i++) {
f = &sf->stats[i];
if (sf->get_totstat(sf, i, s, sizeof(s)) && strcmp(s, "0"))
fprintf(fd, "%-*s %s\n", width, s, f->desc);
}
}
static void
bsdstat_print_fields(struct bsdstat *sf, FILE *fd)
{
int i, w, width;
width = 0;
for (i = 0; i < sf->nstats; i++) {
w = strlen(sf->stats[i].name);
if (w > width)
width = w;
}
for (i = 0; i < sf->nstats; i++) {
const struct fmt *f = &sf->stats[i];
if (f->width != 0)
fprintf(fd, "%-*s %s\n", width, f->name, f->desc);
}
}
void
bsdstat_init(struct bsdstat *sf, const char *name, const struct fmt *stats, int nstats)
{
sf->name = name;
sf->stats = stats;
sf->nstats = nstats;
sf->setfmt = bsdstat_setfmt;
sf->collect_cur = bsdstat_collect;
sf->collect_tot = bsdstat_collect;
sf->update_tot = bsdstat_update_tot;
sf->get_curstat = bsdstat_get;
sf->get_totstat = bsdstat_get;
sf->print_header = bsdstat_print_header;
sf->print_current = bsdstat_print_current;
sf->print_total = bsdstat_print_total;
sf->print_verbose = bsdstat_print_verbose;
sf->print_fields = bsdstat_print_fields;
}