mboxgrep/src/main.c

376 lines
7.7 KiB
C

/* -*- C -*-
mboxgrep - scan mailbox for messages matching a regular expression
Copyright (C) 2000, 2001, 2002, 2003 Daniel Spiljar
Mboxgrep is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
Mboxgrep is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with mboxgrep; if not, write to the Free Software Foundation,
Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
$Id: main.c,v 1.32 2003/08/24 19:23:50 dspiljar Exp $ */
#include <config.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <regex.h>
#include <stdlib.h>
#include <unistd.h>
#ifdef HAVE_LIBPCRE
#include <pcre.h>
#endif /* HAVE_LIBPCRE */
#ifdef HAVE_LIBZ
#include <zlib.h>
#endif /* HAVE_LIBZ */
#include "getopt.h"
#include "mboxgrep.h"
#include "misc.h"
#include "info.h"
#include "mbox.h"
#include "mh.h"
#include "scan.h"
#include "wrap.h" /* xcalloc() et cetera */
#ifdef HAVE_LIBDMALLOC
#include <dmalloc.h>
#endif /* HAVE_LIBDMALLOC */
regex_t posix_pattern;
#ifdef HAVE_LIBPCRE
pcre *pcre_pattern;
pcre_extra *hints;
#endif /* HAVE_LIBPCRE */
char *boxname, *outboxname, *pipecmd, *tmpfilename;
int maildir_count = 0;
int count = 0;
void *tmpp;
checksum_t *cs;
int
main (int argc, char **argv)
/* {{{ */
{
int option_index = 0;
int c;
#ifdef HAVE_LIBPCRE
int errptr;
const char *error;
#endif /* HAVE_LIBPCRE */
int haveregex = 0, havemailbox = 0;
static char *regex_s;
int singlefile = 0;
int errcode = 0;
char errbuf[BUFSIZ];
static struct option long_options[] =
/* {{{ */
{
{"count", 0, 0, 'c'},
{"delete", 0, 0, 'd'},
/* {"date", 1, 0, 'D'}, */
{"extended-regexp", 0, 0, 'E'},
{"basic-regexp", 0, 0, 'G'},
{"perl-regexp", 0, 0, 'P'},
{"help", 0, 0, 'h'},
{"ignore-case", 0, 0, 'i'},
{"mailbox-format", 1, 0, 'm'},
{"no", 1, 0, 'n' },
{"pipe", 1, 0, 'p'},
{"regexp", 1, 0, 'e'},
{"invert-match", 0, 0, 'v'},
{"version", 0, 0, 'V'},
{"headers", 0, 0, 'H'},
{"body", 0, 0, 'B'},
{"no-messages", 0, 0, 's'},
{"output", 1, 0, 'o'},
{"no-duplicates", 0, 0, 200},
{"no-file-lock", 0, 0, 201},
{"file-lock", 1, 0, 'l'},
{"recursive", 0, 0, 'r'},
{0, 0, 0, 0}
};
/* }}} */
config.perl = 0;
config.extended = 1;
config.invert = 0;
config.headers = 0;
config.body = 0;
config.action = DISPLAY;
config.dedup = 0;
config.recursive = 0;
config.ignorecase = 0;
config.format = MBOX; /* default mailbox format */
config.lock = FCNTL; /* default file locking method */
config.merr = 1; /* report errors by default */
while (1)
{
c = getopt_long (argc, argv, "BcdEe:GHhil:m:n:o:Pp:rsVv", long_options,
&option_index);
if (c == -1)
break;
switch (c)
/* {{{ */
{
case '?':
usage();
case 'c':
config.action = COUNT;
break;
case 'd':
config.action = DELETE;
break;
case 'e':
regex_s = xstrdup (optarg);
haveregex = 1;
break;
case 'o':
outboxname = xstrdup (optarg);
config.action = WRITE;
break;
case 'E':
config.extended = 1;
break;
case 'G':
config.extended = 0;
break;
case 'P':
#ifdef HAVE_LIBPCRE
config.extended = 0;
config.perl = 1;
#else
fprintf(stderr,
"%s: Support for Perl regular expressions not "
"compiled in\n");
exit(2);
#endif /* HAVE_LIBPCRE */
break;
case 'h':
help ();
break;
case 'i':
config.ignorecase = 1;
break;
case 'm':
config.format = folder_format (optarg);
break;
case 'l':
config.lock = lock_method (optarg);
break;
case 'p':
config.action = PIPE;
pipecmd = xstrdup (optarg);
break;
case 'V':
version ();
break;
case 'v':
config.invert = 1;
break;
case 'H':
config.headers = 1;
break;
case 'B':
config.body = 1;
break;
case 's':
config.merr = 0;
break;
case 201:
config.lock = 0;
break;
case 'r':
config.recursive = 1;
break;
case 200:
config.dedup = 1;
break;
case 'n':
{
switch (optarg[0])
{
case 'd':
config.dedup = 1;
break;
case 'l':
config.lock = 0;
break;
default:
fprintf(stderr, "%s: invalid option -- n%c\n",
APPNAME, optarg[0]);
exit(2);
}
}
} /* switch */
/* }}} */
} /* while */
if ((config.body == 0) && (config.headers == 0))
{
config.body = 1;
config.headers = 1;
}
if (config.format == MAILDIR && config.action == WRITE)
{
gethostname (config.hostname, HOST_NAME_SIZE);
config.pid = (int) getpid ();
}
cs = (checksum_t *) xmalloc (sizeof (checksum_t));
cs->md5 = (char **) xcalloc (1, sizeof (char **));
cs->n = 0;
if (optind < argc && ! haveregex)
{
regex_s = xstrdup (argv[optind]);
haveregex = 1;
++optind;
} /* if */
if (haveregex)
{
#ifdef HAVE_LIBPCRE
if (config.perl)
/* {{{ */
{
pcre_pattern = pcre_compile (regex_s,
(config.ignorecase ? PCRE_CASELESS : 0),
&error, &errptr, NULL);
if (pcre_pattern == NULL)
{
if (config.merr)
fprintf (stderr, "%s: %s: %s\n", APPNAME, regex_s, error);
exit(2);
}
}
/* }}} */
else
#endif /* HAVE_LIBPCRE */
/* {{{ */
{
int flag1 = 0, flag2 = 0;
if (config.ignorecase)
flag1 = REG_ICASE;
if (config.extended)
flag2 = REG_EXTENDED;
errcode = regcomp (&posix_pattern, regex_s,
(flag1 | flag2 | REG_NEWLINE ));
if (0 != errcode)
{
if (config.merr)
{
regerror (errcode, &posix_pattern, errbuf, BUFSIZ);
fprintf (stderr, "%s: %s: %s\n", APPNAME, regex_s, errbuf);
}
exit (2);
} /* if */
} /* if */
/* }}} */
} /* if */
else
usage ();
if (optind == (argc - 1))
singlefile = 1;
while (optind < argc)
/* {{{ */
{
if (config.action == DELETE) {
tmpp = tmpfile_open (argv[optind]);
/* If we're root, copy {owner, group, perms} of mailbox to the tmpfile
* so rename() will thus retain the original's ownership & permissions.
*/
if (geteuid() == 0) {
struct stat s;
if (stat(argv[optind], &s) != -1) {
if (fchown(fileno(tmpp), s.st_uid, s.st_gid) == -1)
if (config.merr) perror(tmpfilename);
if (fchmod(fileno(tmpp), s.st_mode) == -1)
if (config.merr) perror(tmpfilename);
}
else if (config.merr) perror(argv[optind]);
}
}
boxname = xstrdup (argv[optind]);
if (config.recursive)
recursive_scan (argv[optind]);
else
scan_mailbox (argv[optind]);
havemailbox = 1;
if (config.action == COUNT)
{
if (singlefile)
fprintf (stdout, "%i\n", count);
else
{
if (0 == strcmp ("-", argv[optind]))
fprintf (stdout, "(standard input):%i\n", count);
else
fprintf (stdout, "%s:%i\n", argv[optind], count);
}
}
if (config.action == DELETE)
{
#ifdef HAVE_LIBZ
if (config.format == ZMBOX)
gzclose (tmpp);
#endif /* HAVE_LIBZ */
if (config.format == MBOX)
fclose (tmpp);
rename (tmpfilename, argv[optind]);
}
++optind;
} /* while */
/* }}} */
if (! havemailbox)
/* {{{ */
{
config.format = MBOX;
scan_mailbox ("-");
if (config.action == COUNT)
fprintf (stdout, "%i\n", count);
}
/* }}} */
return 0;
} /* main */
/* }}} */