OpenBSD-4.6/usr.sbin/amd/mk-amd-map/mk-amd-map.c
/*
* Copyright (c) 1990, 1993 Jan-Simon Pendry
* Copyright (c) 1990 Imperial College of Science, Technology & Medicine
* Copyright (c) 1990, 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Jan-Simon Pendry at Imperial College, London.
*
* 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.
*
* from: @(#)mk-amd-map.c 8.1 (Berkeley) 6/28/93
* $Id: mk-amd-map.c,v 1.9 2007/03/20 04:00:32 tedu Exp $
*/
/*
* Convert a file map into an ndbm map
*/
#ifndef lint
char copyright[] = "\
@(#)Copyright (c) 1990, 1993 Jan-Simon Pendry\n\
@(#)Copyright (c) 1990 Imperial College of Science, Technology & Medicine\n\
@(#)Copyright (c) 1990, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* not lint */
#ifndef lint
static char rcsid[] = "$Id: mk-amd-map.c,v 1.9 2007/03/20 04:00:32 tedu Exp $";
static char sccsid[] = "@(#)mk-amd-map.c 8.1 (Berkeley) 6/28/93";
#endif /* not lint */
#include "am.h"
#ifndef SIGINT
#include <signal.h>
#endif
#include <unistd.h>
#ifdef OS_HAS_NDBM
#define HAS_DATABASE
#include <ndbm.h>
#ifdef DBM_SUFFIX
#define USING_DB
#endif
#define create_database(name) dbm_open(name, O_RDWR|O_CREAT, 0644)
static int
store_data(void *db, char *k, char *v)
{
datum key, val;
key.dptr = k; val.dptr = v;
key.dsize = strlen(k) + 1;
val.dsize = strlen(v) + 1;
return dbm_store((DBM *) db, key, val, DBM_INSERT);
}
#endif /* OS_HAS_NDBM */
#ifdef HAS_DATABASE
#include <fcntl.h>
#include <ctype.h>
static int
read_line(char *buf, int size, FILE *fp)
{
int done = 0;
do {
while (fgets(buf, size, fp)) {
int len = strlen(buf);
done += len;
if (len > 1 && buf[len-2] == '\\' &&
buf[len-1] == '\n') {
int ch;
buf += len - 2;
size -= len - 2;
*buf = '\n'; buf[1] = '\0';
/*
* Skip leading white space on next line
*/
while ((ch = getc(fp)) != EOF &&
isascii(ch) && isspace(ch))
;
(void) ungetc(ch, fp);
} else {
return done;
}
}
} while (size > 0 && !feof(fp));
return done;
}
/*
* Read through a map
*/
static int
read_file(FILE *fp, char *map, void *db)
{
char key_val[2048];
int chuck = 0;
int line_no = 0;
int errs = 0;
while (read_line(key_val, sizeof(key_val), fp)) {
char *kp;
char *cp;
char *hash;
int len = strlen(key_val);
line_no++;
/*
* Make sure we got the whole line
*/
if (key_val[len-1] != '\n') {
fprintf(stderr, "line %d in \"%s\" is too long", line_no, map);
chuck = 1;
} else {
key_val[len-1] = '\0';
}
/*
* Strip comments
*/
hash = strchr(key_val, '#');
if (hash)
*hash = '\0';
/*
* Find start of key
*/
for (kp = key_val; isascii(*kp) && isspace(*kp); kp++)
;
/*
* Ignore blank lines
*/
if (!*kp)
goto again;
/*
* Find end of key
*/
for (cp = kp; *cp&&(!isascii(*cp)||!isspace(*cp)); cp++)
;
/*
* Check whether key matches, or whether
* the entry is a wildcard entry.
*/
if (*cp)
*cp++ = '\0';
while (isascii(*cp) && isspace(*cp))
cp++;
if (*kp == '+') {
fprintf(stderr, "Can't interpolate %s\n", kp);
errs++;
} else if (*cp) {
if (db) {
if (store_data(db, kp, cp) < 0) {
fprintf(stderr, "Could store %s -> %s\n", kp, cp);
errs++;
}
} else {
printf("%s\t%s\n", kp, cp);
}
} else {
fprintf(stderr, "%s: line %d has no value field", map, line_no);
errs++;
}
again:
/*
* If the last read didn't get a whole line then
* throw away the remainder before continuing...
*/
if (chuck) {
while (fgets(key_val, sizeof(key_val), fp) &&
!strchr(key_val, '\n'))
;
chuck = 0;
}
}
return errs;
}
static int
remove_file(char *f)
{
if (unlink(f) < 0 && errno != ENOENT)
return -1;
return 0;
}
int
main(int argc, char *argv[])
{
FILE *mapf;
char *map;
int rc = 0;
DBM *mapd;
static char maptmp[] = "dbmXXXXXXXXXX";
char maptpag[16];
char *mappag;
#ifndef USING_DB
char maptdir[16];
char *mapdir;
#endif
int len;
char *sl;
int printit = 0;
int usage = 0;
int ch;
extern int optind;
while ((ch = getopt(argc, argv, "p")) != -1)
switch (ch) {
case 'p':
printit = 1;
break;
default:
usage++;
break;
}
if (usage || optind != (argc - 1)) {
fputs("Usage: mk-amd-map [-p] file-map\n", stderr);
exit(1);
}
map = argv[optind];
sl = strrchr(map, '/');
if (sl) {
*sl = '\0';
if (chdir(map) < 0) {
fputs("Can't chdir to ", stderr);
perror(map);
exit(1);
}
map = sl + 1;
}
if (!printit) {
#ifdef USING_DB
len = strlen(map) + 4;
mappag = (char *) malloc(len);
if (!mappag) {
perror("mk-amd-map: malloc");
exit(1);
}
mktemp(maptmp);
snprintf(maptpag, sizeof(maptpag), "%s.db", maptmp);
if (remove_file(maptpag) < 0) {
fprintf(stderr, "Can't remove existing temporary file");
perror(maptpag);
exit(1);
}
#else
len = strlen(map) + 5;
mappag = (char *) malloc(len);
mapdir = (char *) malloc(len);
if (!mappag || !mapdir) {
perror("mk-amd-map: malloc");
exit(1);
}
mktemp(maptmp);
snprintf(maptpag, sizeof(maptpag), "%s.pag", maptmp);
snprintf(maptdir, sizeof(maptdir), "%s.dir", maptmp);
if (remove_file(maptpag) < 0 || remove_file(maptdir) < 0) {
fprintf(stderr, "Can't remove existing temporary files; %s and", maptpag);
perror(maptdir);
exit(1);
}
#endif
}
mapf = fopen(map, "r");
if (mapf && !printit)
mapd = create_database(maptmp);
else
mapd = 0;
#ifndef DEBUG
signal(SIGINT, SIG_IGN);
#endif
if (mapd || printit) {
int error = read_file(mapf, map, mapd);
if (mapd)
dbm_close(mapd);
(void) fclose(mapf);
if (printit) {
if (error) {
fprintf(stderr, "Error creating ndbm map for %s\n", map);
rc = 1;
}
} else {
if (error) {
fprintf(stderr, "Error reading source file %s\n", map);
rc = 1;
} else {
#ifdef USING_DB
snprintf(mappag, len, "%s.db", map);
if (rename(maptpag, mappag) < 0) {
fprintf(stderr, "Couldn't rename %s to ", maptpag);
perror(mappag);
/* Throw away the temporary map */
unlink(maptpag);
rc = 1;
}
#else
snprintf(mappag, len, "%s.pag", map);
snprintf(mapdir, len, "%s.dir", map);
if (rename(maptpag, mappag) < 0) {
fprintf(stderr, "Couldn't rename %s to ", maptpag);
perror(mappag);
/* Throw away the temporary map */
unlink(maptpag);
unlink(maptdir);
rc = 1;
} else if (rename(maptdir, mapdir) < 0) {
fprintf(stderr, "Couldn't rename %s to ", maptdir);
perror(mapdir);
/* Put the .pag file back */
rename(mappag, maptpag);
/* Throw away remaining part of original map */
unlink(mapdir);
fprintf(stderr,
"WARNING: existing map \"%s.{dir,pag}\" destroyed\n",
map);
rc = 1;
}
#endif
}
}
} else {
fprintf(stderr, "Can't open \"%s.{dir,pag}\" for ", map);
perror("writing");
rc = 1;
}
exit(rc);
}
#else
main()
{
fputs("mk-amd-map: This system does not support hashed database files\n", stderr);
exit(1);
}
#endif /* HAS_DATABASE */