NetBSD/gnu/dist/sendmail/makemap/makemap.c

573 lines
11 KiB
C

/*
* Copyright (c) 1998-2000 Sendmail, Inc. and its suppliers.
* All rights reserved.
* Copyright (c) 1992 Eric P. Allman. All rights reserved.
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* By using this file, you agree to the terms and conditions set
* forth in the LICENSE file which can be found at the top level of
* the sendmail distribution.
*
*/
#ifndef lint
static char copyright[] =
"@(#) Copyright (c) 1998-2000 Sendmail, Inc. and its suppliers.\n\
All rights reserved.\n\
Copyright (c) 1992 Eric P. Allman. All rights reserved.\n\
Copyright (c) 1992, 1993\n\
The Regents of the University of California. All rights reserved.\n";
#endif /* ! lint */
#ifndef lint
static char id[] = "@(#)Id: makemap.c,v 8.135.4.13 2000/10/05 23:00:50 gshapiro Exp";
#endif /* ! lint */
#include <sys/types.h>
#ifndef ISC_UNIX
# include <sys/file.h>
#endif /* ! ISC_UNIX */
#include <ctype.h>
#include <stdlib.h>
#include <unistd.h>
#ifdef EX_OK
# undef EX_OK /* unistd.h may have another use for this */
#endif /* EX_OK */
#include <sysexits.h>
#include <sendmail/sendmail.h>
#include <sendmail/pathnames.h>
#include <libsmdb/smdb.h>
uid_t RealUid;
gid_t RealGid;
char *RealUserName;
uid_t RunAsUid;
uid_t RunAsGid;
char *RunAsUserName;
int Verbose = 2;
bool DontInitGroups = FALSE;
uid_t TrustedUid = 0;
BITMAP256 DontBlameSendmail;
#define BUFSIZE 1024
#if _FFR_DELIM
# define ISSEP(c) ((sep == '\0' && isascii(c) && isspace(c)) || (c) == sep)
#else /* _FFR_DELIM */
# define ISSEP(c) (isascii(c) && isspace(c))
#endif /* _FFR_DELIM */
static void
usage(progname)
char *progname;
{
fprintf(stderr,
"Usage: %s [-C cffile] [-N] [-c cachesize] [-d] [-e] [-f] [-l] [-o] [-r] [-s] %s[-u] [-v] type mapname\n",
progname,
#if _FFR_DELIM
"[-t delimiter] "
#else /* _FFR_DELIM */
""
#endif /* _FFR_DELIM */
);
exit(EX_USAGE);
}
int
main(argc, argv)
int argc;
char **argv;
{
char *progname;
char *cfile;
bool inclnull = FALSE;
bool notrunc = FALSE;
bool allowreplace = FALSE;
bool allowempty = FALSE;
bool verbose = FALSE;
bool foldcase = TRUE;
bool unmake = FALSE;
#if _FFR_DELIM
char sep = '\0';
#endif /* _FFR_DELIM */
int exitstat;
int opt;
char *typename = NULL;
char *mapname = NULL;
int lineno;
int st;
int mode;
int smode;
int putflags = 0;
long sff = SFF_ROOTOK|SFF_REGONLY;
struct passwd *pw;
SMDB_DATABASE *database;
SMDB_CURSOR *cursor;
SMDB_DBENT db_key, db_val;
SMDB_DBPARAMS params;
SMDB_USER_INFO user_info;
char ibuf[BUFSIZE];
#if HASFCHOWN
FILE *cfp;
char buf[MAXLINE];
#endif /* HASFCHOWN */
static char rnamebuf[MAXNAME]; /* holds RealUserName */
extern char *optarg;
extern int optind;
memset(&params, '\0', sizeof params);
params.smdbp_cache_size = 1024 * 1024;
progname = strrchr(argv[0], '/');
if (progname != NULL)
progname++;
else
progname = argv[0];
cfile = _PATH_SENDMAILCF;
clrbitmap(DontBlameSendmail);
RunAsUid = RealUid = getuid();
RunAsGid = RealGid = getgid();
pw = getpwuid(RealUid);
if (pw != NULL)
(void) strlcpy(rnamebuf, pw->pw_name, sizeof rnamebuf);
else
(void) snprintf(rnamebuf, sizeof rnamebuf, "Unknown UID %d",
(int) RealUid);
RunAsUserName = RealUserName = rnamebuf;
user_info.smdbu_id = RunAsUid;
user_info.smdbu_group_id = RunAsGid;
(void) strlcpy(user_info.smdbu_name, RunAsUserName,
SMDB_MAX_USER_NAME_LEN);
#define OPTIONS "C:Nc:t:deflorsuv"
while ((opt = getopt(argc, argv, OPTIONS)) != -1)
{
switch (opt)
{
case 'C':
cfile = optarg;
break;
case 'N':
inclnull = TRUE;
break;
case 'c':
params.smdbp_cache_size = atol(optarg);
break;
case 'd':
params.smdbp_allow_dup = TRUE;
break;
case 'e':
allowempty = TRUE;
break;
case 'f':
foldcase = FALSE;
break;
case 'l':
smdb_print_available_types();
exit(EX_OK);
break;
case 'o':
notrunc = TRUE;
break;
case 'r':
allowreplace = TRUE;
break;
case 's':
setbitn(DBS_MAPINUNSAFEDIRPATH, DontBlameSendmail);
setbitn(DBS_WRITEMAPTOHARDLINK, DontBlameSendmail);
setbitn(DBS_WRITEMAPTOSYMLINK, DontBlameSendmail);
setbitn(DBS_LINKEDMAPINWRITABLEDIR, DontBlameSendmail);
break;
#if _FFR_DELIM
case 't':
if (optarg == NULL || *optarg == '\0')
{
fprintf(stderr, "Invalid separator\n");
break;
}
sep = *optarg;
break;
#endif /* _FFR_DELIM */
case 'u':
unmake = TRUE;
break;
case 'v':
verbose = TRUE;
break;
default:
usage(progname);
/* NOTREACHED */
}
}
if (!bitnset(DBS_WRITEMAPTOSYMLINK, DontBlameSendmail))
sff |= SFF_NOSLINK;
if (!bitnset(DBS_WRITEMAPTOHARDLINK, DontBlameSendmail))
sff |= SFF_NOHLINK;
if (!bitnset(DBS_LINKEDMAPINWRITABLEDIR, DontBlameSendmail))
sff |= SFF_NOWLINK;
argc -= optind;
argv += optind;
if (argc != 2)
{
usage(progname);
/* NOTREACHED */
}
else
{
typename = argv[0];
mapname = argv[1];
}
#if HASFCHOWN
/* Find TrustedUser value in sendmail.cf */
if ((cfp = fopen(cfile, "r")) == NULL)
{
fprintf(stderr, "makemap: %s: %s", cfile, errstring(errno));
exit(EX_NOINPUT);
}
while (fgets(buf, sizeof(buf), cfp) != NULL)
{
register char *b;
if ((b = strchr(buf, '\n')) != NULL)
*b = '\0';
b = buf;
switch (*b++)
{
case 'O': /* option */
if (strncasecmp(b, " TrustedUser", 12) == 0 &&
!(isascii(b[12]) && isalnum(b[12])))
{
b = strchr(b, '=');
if (b == NULL)
continue;
while (isascii(*++b) && isspace(*b))
continue;
if (isascii(*b) && isdigit(*b))
TrustedUid = atoi(b);
else
{
TrustedUid = 0;
pw = getpwnam(b);
if (pw == NULL)
fprintf(stderr,
"TrustedUser: unknown user %s\n", b);
else
TrustedUid = pw->pw_uid;
}
# ifdef UID_MAX
if (TrustedUid > UID_MAX)
{
fprintf(stderr,
"TrustedUser: uid value (%ld) > UID_MAX (%ld)",
(long) TrustedUid,
(long) UID_MAX);
TrustedUid = 0;
}
# endif /* UID_MAX */
break;
}
default:
continue;
}
}
(void) fclose(cfp);
#endif /* HASFCHOWN */
if (!params.smdbp_allow_dup && !allowreplace)
putflags = SMDBF_NO_OVERWRITE;
if (unmake)
{
mode = O_RDONLY;
smode = S_IRUSR;
}
else
{
mode = O_RDWR;
if (!notrunc)
{
mode |= O_CREAT|O_TRUNC;
sff |= SFF_CREAT;
}
smode = S_IWUSR;
}
params.smdbp_num_elements = 4096;
errno = smdb_open_database(&database, mapname, mode, smode, sff,
typename, &user_info, &params);
if (errno != SMDBE_OK)
{
char *hint;
if (errno == SMDBE_UNSUPPORTED_DB_TYPE &&
(hint = smdb_db_definition(typename)) != NULL)
fprintf(stderr,
"%s: Need to recompile with -D%s for %s support\n",
progname, hint, typename);
else
fprintf(stderr,
"%s: error opening type %s map %s: %s\n",
progname, typename, mapname, errstring(errno));
exit(EX_CANTCREAT);
}
(void) database->smdb_sync(database, 0);
if (!unmake && geteuid() == 0 && TrustedUid != 0)
{
errno = database->smdb_set_owner(database, TrustedUid, -1);
if (errno != SMDBE_OK)
{
fprintf(stderr,
"WARNING: ownership change on %s failed %s",
mapname, errstring(errno));
}
}
/*
** Copy the data
*/
exitstat = EX_OK;
if (unmake)
{
errno = database->smdb_cursor(database, &cursor, 0);
if (errno != SMDBE_OK)
{
fprintf(stderr,
"%s: cannot make cursor for type %s map %s\n",
progname, typename, mapname);
exit(EX_SOFTWARE);
}
memset(&db_key, '\0', sizeof db_key);
memset(&db_val, '\0', sizeof db_val);
for (lineno = 0; ; lineno++)
{
errno = cursor->smdbc_get(cursor, &db_key, &db_val,
SMDB_CURSOR_GET_NEXT);
if (errno != SMDBE_OK)
break;
printf("%.*s\t%.*s\n",
(int) db_key.size,
(char *) db_key.data,
(int) db_val.size,
(char *)db_val.data);
}
(void) cursor->smdbc_close(cursor);
}
else
{
lineno = 0;
while (fgets(ibuf, sizeof ibuf, stdin) != NULL)
{
register char *p;
lineno++;
/*
** Parse the line.
*/
p = strchr(ibuf, '\n');
if (p != NULL)
*p = '\0';
else if (!feof(stdin))
{
fprintf(stderr,
"%s: %s: line %d: line too long (%ld bytes max)\n",
progname, mapname, lineno, (long) sizeof ibuf);
exitstat = EX_DATAERR;
continue;
}
if (ibuf[0] == '\0' || ibuf[0] == '#')
continue;
if (
#if _FFR_DELIM
sep == '\0' &&
#endif /* _FFR_DELIM */
isascii(ibuf[0]) && isspace(ibuf[0]))
{
fprintf(stderr,
"%s: %s: line %d: syntax error (leading space)\n",
progname, mapname, lineno);
exitstat = EX_DATAERR;
continue;
}
memset(&db_key, '\0', sizeof db_key);
memset(&db_val, '\0', sizeof db_val);
db_key.data = ibuf;
for (p = ibuf; *p != '\0' && !(ISSEP(*p)); p++)
{
if (foldcase && isascii(*p) && isupper(*p))
*p = tolower(*p);
}
db_key.size = p - ibuf;
if (inclnull)
db_key.size++;
if (*p != '\0')
*p++ = '\0';
while (ISSEP(*p))
p++;
if (!allowempty && *p == '\0')
{
fprintf(stderr,
"%s: %s: line %d: no RHS for LHS %s\n",
progname, mapname, lineno,
(char *) db_key.data);
exitstat = EX_DATAERR;
continue;
}
db_val.data = p;
db_val.size = strlen(p);
if (inclnull)
db_val.size++;
/*
** Do the database insert.
*/
if (verbose)
{
printf("key=`%s', val=`%s'\n",
(char *) db_key.data,
(char *) db_val.data);
}
errno = database->smdb_put(database, &db_key, &db_val,
putflags);
switch (errno)
{
case SMDBE_KEY_EXIST:
st = 1;
break;
case 0:
st = 0;
break;
default:
st = -1;
break;
}
if (st < 0)
{
fprintf(stderr,
"%s: %s: line %d: key %s: put error: %s\n",
progname, mapname, lineno,
(char *) db_key.data,
errstring(errno));
exitstat = EX_IOERR;
}
else if (st > 0)
{
fprintf(stderr,
"%s: %s: line %d: key %s: duplicate key\n",
progname, mapname,
lineno, (char *) db_key.data);
exitstat = EX_DATAERR;
}
}
}
/*
** Now close the database.
*/
errno = database->smdb_close(database);
if (errno != SMDBE_OK)
{
fprintf(stderr, "%s: close(%s): %s\n",
progname, mapname, errstring(errno));
exitstat = EX_IOERR;
}
smdb_free_database(database);
exit(exitstat);
/* NOTREACHED */
return exitstat;
}
/*VARARGS1*/
void
#ifdef __STDC__
message(const char *msg, ...)
#else /* __STDC__ */
message(msg, va_alist)
const char *msg;
va_dcl
#endif /* __STDC__ */
{
const char *m;
VA_LOCAL_DECL
m = msg;
if (isascii(m[0]) && isdigit(m[0]) &&
isascii(m[1]) && isdigit(m[1]) &&
isascii(m[2]) && isdigit(m[2]) && m[3] == ' ')
m += 4;
VA_START(msg);
(void) vfprintf(stderr, m, ap);
VA_END;
(void) fprintf(stderr, "\n");
}
/*VARARGS1*/
void
#ifdef __STDC__
syserr(const char *msg, ...)
#else /* __STDC__ */
syserr(msg, va_alist)
const char *msg;
va_dcl
#endif /* __STDC__ */
{
const char *m;
VA_LOCAL_DECL
m = msg;
if (isascii(m[0]) && isdigit(m[0]) &&
isascii(m[1]) && isdigit(m[1]) &&
isascii(m[2]) && isdigit(m[2]) && m[3] == ' ')
m += 4;
VA_START(msg);
(void) vfprintf(stderr, m, ap);
VA_END;
(void) fprintf(stderr, "\n");
}