freebsd-dev/usr.sbin/lpr/pac/pac.c
Pedro F. Giffuni 8a16b7a18f General further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 3-Clause license.

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.

Special thanks to Wind River for providing access to "The Duke of
Highlander" tool: an older (2014) run over FreeBSD tree was useful as a
starting point.
2017-11-20 19:49:47 +00:00

453 lines
10 KiB
C

/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 1983, 1993
* The Regents of the University of California. 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.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, 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 DAMAGE.
*/
#ifndef lint
static const char copyright[] =
"@(#) Copyright (c) 1983, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#if 0
#ifndef lint
static char sccsid[] = "@(#)pac.c 8.1 (Berkeley) 6/6/93";
#endif /* not lint */
#endif
#include "lp.cdefs.h" /* A cross-platform version of <sys/cdefs.h> */
__FBSDID("$FreeBSD$");
/*
* Do Printer accounting summary.
* Currently, usage is
* pac [-Pprinter] [-pprice] [-s] [-r] [-c] [-m] [user ...]
* to print the usage information for the named people.
*/
#include <sys/param.h>
#include <dirent.h>
#include <err.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include "lp.h"
#include "lp.local.h"
static char *acctfile; /* accounting file (input data) */
static int allflag = 1; /* Get stats on everybody */
static int errs;
static size_t hcount; /* Count of hash entries */
static int mflag = 0; /* disregard machine names */
static int pflag = 0; /* 1 if -p on cmd line */
static float price = 0.02; /* cost per page (or what ever) */
static int reverse; /* Reverse sort order */
static int sort; /* Sort by cost */
static char *sumfile; /* summary file */
static int summarize; /* Compress accounting file */
uid_t uid, euid;
/*
* Grossness follows:
* Names to be accumulated are hashed into the following
* table.
*/
#define HSHSIZE 97 /* Number of hash buckets */
struct hent {
struct hent *h_link; /* Forward hash link */
char *h_name; /* Name of this user */
float h_feetpages; /* Feet or pages of paper */
int h_count; /* Number of runs */
};
static struct hent *hashtab[HSHSIZE]; /* Hash table proper */
int main(int argc, char **_argv);
static void account(FILE *_acctf);
static int any(int _ch, const char _str[]);
static int chkprinter(const char *_ptrname);
static void dumpit(void);
static int hash(const char _name[]);
static struct hent *enter(const char _name[]);
static struct hent *lookup(const char _name[]);
static int qucmp(const void *_a, const void *_b);
static void rewrite(void);
static void usage(void);
int
main(int argc, char **argv)
{
FILE *acctf;
const char *cp, *printer;
printer = NULL;
euid = geteuid(); /* these aren't used in pac(1) */
uid = getuid();
while (--argc) {
cp = *++argv;
if (*cp++ == '-') {
switch(*cp++) {
case 'P':
/*
* Printer name.
*/
printer = cp;
continue;
case 'p':
/*
* get the price.
*/
price = atof(cp);
pflag = 1;
continue;
case 's':
/*
* Summarize and compress accounting file.
*/
summarize++;
continue;
case 'c':
/*
* Sort by cost.
*/
sort++;
continue;
case 'm':
/*
* disregard machine names for each user
*/
mflag = 1;
continue;
case 'r':
/*
* Reverse sorting order.
*/
reverse++;
continue;
default:
usage();
}
}
(void) enter(--cp);
allflag = 0;
}
if (printer == NULL && (printer = getenv("PRINTER")) == NULL)
printer = DEFLP;
if (!chkprinter(printer)) {
printf("pac: unknown printer %s\n", printer);
exit(2);
}
if ((acctf = fopen(acctfile, "r")) == NULL) {
perror(acctfile);
exit(1);
}
account(acctf);
fclose(acctf);
if ((acctf = fopen(sumfile, "r")) != NULL) {
account(acctf);
fclose(acctf);
}
if (summarize)
rewrite();
else
dumpit();
exit(errs);
}
static void
usage(void)
{
fprintf(stderr,
"usage: pac [-Pprinter] [-pprice] [-s] [-c] [-r] [-m] [user ...]\n");
exit(1);
}
/*
* Read the entire accounting file, accumulating statistics
* for the users that we have in the hash table. If allflag
* is set, then just gather the facts on everyone.
* Note that we must accommodate both the active and summary file
* formats here.
* Host names are ignored if the -m flag is present.
*/
static void
account(FILE *acctf)
{
char linebuf[BUFSIZ];
double t;
register char *cp, *cp2;
register struct hent *hp;
register int ic;
while (fgets(linebuf, BUFSIZ, acctf) != NULL) {
cp = linebuf;
while (any(*cp, " \t"))
cp++;
t = atof(cp);
while (any(*cp, ".0123456789"))
cp++;
while (any(*cp, " \t"))
cp++;
for (cp2 = cp; !any(*cp2, " \t\n"); cp2++)
;
ic = atoi(cp2);
*cp2 = '\0';
if (mflag && strchr(cp, ':'))
cp = strchr(cp, ':') + 1;
hp = lookup(cp);
if (hp == NULL) {
if (!allflag)
continue;
hp = enter(cp);
}
hp->h_feetpages += t;
if (ic)
hp->h_count += ic;
else
hp->h_count++;
}
}
/*
* Sort the hashed entries by name or footage
* and print it all out.
*/
static void
dumpit(void)
{
struct hent **base;
register struct hent *hp, **ap;
register int hno, runs;
size_t c;
float feet;
hp = hashtab[0];
hno = 1;
base = (struct hent **) calloc(sizeof hp, hcount);
for (ap = base, c = hcount; c--; ap++) {
while (hp == NULL)
hp = hashtab[hno++];
*ap = hp;
hp = hp->h_link;
}
qsort(base, hcount, sizeof hp, qucmp);
printf(" Login pages/feet runs price\n");
feet = 0.0;
runs = 0;
for (ap = base, c = hcount; c--; ap++) {
hp = *ap;
runs += hp->h_count;
feet += hp->h_feetpages;
printf("%-24s %7.2f %4d $%6.2f\n", hp->h_name,
hp->h_feetpages, hp->h_count, hp->h_feetpages * price);
}
if (allflag) {
printf("\n");
printf("%-24s %7.2f %4d $%6.2f\n", "total", feet,
runs, feet * price);
}
}
/*
* Rewrite the summary file with the summary information we have accumulated.
*/
static void
rewrite(void)
{
register struct hent *hp;
register int i;
FILE *acctf;
if ((acctf = fopen(sumfile, "w")) == NULL) {
warn("%s", sumfile);
errs++;
return;
}
for (i = 0; i < HSHSIZE; i++) {
hp = hashtab[i];
while (hp != NULL) {
fprintf(acctf, "%7.2f\t%s\t%d\n", hp->h_feetpages,
hp->h_name, hp->h_count);
hp = hp->h_link;
}
}
fflush(acctf);
if (ferror(acctf)) {
warn("%s", sumfile);
errs++;
}
fclose(acctf);
if ((acctf = fopen(acctfile, "w")) == NULL)
warn("%s", acctfile);
else
fclose(acctf);
}
/*
* Hashing routines.
*/
/*
* Enter the name into the hash table and return the pointer allocated.
*/
static struct hent *
enter(const char name[])
{
register struct hent *hp;
register int h;
if ((hp = lookup(name)) != NULL)
return(hp);
h = hash(name);
hcount++;
hp = (struct hent *) calloc(sizeof *hp, (size_t)1);
hp->h_name = (char *) calloc(sizeof(char), strlen(name)+1);
strcpy(hp->h_name, name);
hp->h_feetpages = 0.0;
hp->h_count = 0;
hp->h_link = hashtab[h];
hashtab[h] = hp;
return(hp);
}
/*
* Lookup a name in the hash table and return a pointer
* to it.
*/
static struct hent *
lookup(const char name[])
{
register int h;
register struct hent *hp;
h = hash(name);
for (hp = hashtab[h]; hp != NULL; hp = hp->h_link)
if (strcmp(hp->h_name, name) == 0)
return(hp);
return(NULL);
}
/*
* Hash the passed name and return the index in
* the hash table to begin the search.
*/
static int
hash(const char name[])
{
register int h;
register const char *cp;
for (cp = name, h = 0; *cp; h = (h << 2) + *cp++)
;
return((h & 0x7fffffff) % HSHSIZE);
}
/*
* Other stuff
*/
static int
any(int ch, const char str[])
{
register int c = ch;
register const char *cp = str;
while (*cp)
if (*cp++ == c)
return(1);
return(0);
}
/*
* The qsort comparison routine.
* The comparison is ascii collating order
* or by feet of typesetter film, according to sort.
*/
static int
qucmp(const void *a, const void *b)
{
register const struct hent *h1, *h2;
register int r;
h1 = *(const struct hent * const *)a;
h2 = *(const struct hent * const *)b;
if (sort)
r = h1->h_feetpages < h2->h_feetpages ?
-1 : h1->h_feetpages > h2->h_feetpages;
else
r = strcmp(h1->h_name, h2->h_name);
return(reverse ? -r : r);
}
/*
* Perform lookup for printer name or abbreviation --
*/
static int
chkprinter(const char *ptrname)
{
int stat;
struct printer myprinter, *pp = &myprinter;
init_printer(&myprinter);
stat = getprintcap(ptrname, pp);
switch(stat) {
case PCAPERR_OSERR:
printf("pac: getprintcap: %s\n", pcaperr(stat));
exit(3);
case PCAPERR_NOTFOUND:
return 0;
case PCAPERR_TCLOOP:
fatal(pp, "%s", pcaperr(stat));
}
if ((acctfile = pp->acct_file) == NULL)
errx(3, "accounting not enabled for printer %s", ptrname);
if (!pflag && pp->price100)
price = pp->price100/10000.0;
sumfile = (char *) calloc(sizeof(char), strlen(acctfile)+5);
if (sumfile == NULL)
errx(1, "calloc failed");
strcpy(sumfile, acctfile);
strcat(sumfile, "_sum");
return(1);
}