imapfilter/imapfilter/imapfilter.c

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <limits.h>
#include <errno.h>

#include "config.h"
#include "imapfilter.h"
#include "data.h"


extern account_t *accounts;
extern filter_t *filters;

unsigned int options;           /* Program options. */
unsigned int capabilities;      /* Capabilities of mail server. */
char logfile[PATH_MAX];         /* Log file. */
char *home = NULL;              /* User's home directory. */
uid_t ruid, euid;               /* Real and effective UID. */


/*
 * In the beginning there was main()...
 */
int main(int argc, char *argv[])
{
    int c, r;
    char *confile = NULL;       /* Configuration file. */
    account_t *ca;              /* Current account. */
    mbox_t *cm;                 /* Current mailbox. */
    
    ruid = getuid();
    euid = geteuid();

    seteuid(ruid);              /* Drop root privileges. */
    
    corefile_disable();
    
    options = (OPTION_DETAILS_NORMAL | OPTION_NAMESPACE);
    *logfile = 0;
    home = getenv("HOME");
    
#ifndef ENCRYPTED_PASSWORDS
    while ((c = getopt(argc, argv, "c:hl:qv")) != -1) {
#else
    while ((c = getopt(argc, argv, "c:hl:pqv")) != -1) {
#endif
        switch (c) {
        case 'c':
            confile = optarg;
            break;
        case 'h':
            usage();
            exit(ERROR_UNDEFINED);
            break;
        case 'l':
            strncat(logfile, optarg, PATH_MAX - 1);
            break;
#ifdef ENCRYPTED_PASSWORDS
        case 'p':
            options |= OPTION_PASSWORD_EDITOR;
            break;
#endif
        case 'q':
            options &= OPTION_DETAILS_CLEAR;
            options |= OPTION_DETAILS_QUIET;
            break;
        case 'v':
            options &= OPTION_DETAILS_CLEAR;
            options |= OPTION_DETAILS_VERBOSE;
            break;
        default:
            usage();
            exit(ERROR_UNDEFINED);
            break;
        }
    }

    tty_store();
    catch_signals();

    create_homedir();

    read_config(confile);
    open_logfile();

#ifdef ENCRYPTED_PASSWORDS
    read_passwords();
    
    if ((options & OPTION_PASSWORD_EDITOR))
        password_editor();
#endif
    
    setuid(ruid);               /* Capability to regain root privileges
                                   will not be needed any more. */
    

    for (ca = accounts; ca; ca = ca->next) {

#ifndef SSL_TLS
        if (init_connection(ca->server, ca->port))
#else
        if (init_connection(ca->server, ca->port, ca->ssl))
#endif
            continue;

        r = greeting_response();

        if (r == RESPONSE_BYE || check_capabilities())
            continue;

#ifdef DEBUG
        test();
#endif

        if (r != RESPONSE_PREAUTH) {
            if (ca->passwdattr == PASSWORD_NONE) {
                printf("Enter password for %s@%s: ", ca->username, ca->server);
                get_password(ca->password, PASSWORD_LEN);
            }
            if (login(ca->username, ca->password))
                continue;
        }
        check_namespace();

        for (cm = ca->mboxes; cm; cm = cm->next)
            if (!*cm->filters)
                mailbox_status(cm->name);
            else if (!select_mailbox(cm->name)) {
                apply_filters(cm->filters);
                close_mailbox();
            }
        logout();

        close_connection();
    }

    secmem_clear();
    close_logfile();
    corefile_restore();

    exit(0);
}


/*
 * Print a very brief usage message.
 */
void usage(void)
{
    fprintf(stderr,
            "usage: imapfilter [-h"
#ifdef ENCRYPTED_PASSWORDS
            "p"
#endif      
            "qv] [-c configfile] [-l logfile]\n");
}
1	#include <stdio.h>
2	#include <stdlib.h>
3	#include <unistd.h>
4	#include <string.h>
5	#include <limits.h>
6	#include <errno.h>
7
8	#include "config.h"
9	#include "imapfilter.h"
10	#include "data.h"
11
12
13	extern account_t *accounts;
14	extern filter_t *filters;
15
16	unsigned int options; /* Program options. */
17	unsigned int capabilities; /* Capabilities of mail server. */
18	char logfile[PATH_MAX]; /* Log file. */
19	char home = NULL; / User's home directory. */
20	uid_t ruid, euid; /* Real and effective UID. */
21
22
23	/*
24	* In the beginning there was main()...
25	*/
26	int main(int argc, char *argv[])
27	{
28	int c, r;
29	char confile = NULL; / Configuration file. */
30	account_t ca; / Current account. */
31	mbox_t cm; / Current mailbox. */
32
33	ruid = getuid();
34	euid = geteuid();
35
36	seteuid(ruid); /* Drop root privileges. */
37
38	corefile_disable();
39
40	options = (OPTION_DETAILS_NORMAL \| OPTION_NAMESPACE);
41	*logfile = 0;
42	home = getenv("HOME");
43
44	#ifndef ENCRYPTED_PASSWORDS
45	while ((c = getopt(argc, argv, "c:hl:qv")) != -1) {
46	#else
47	while ((c = getopt(argc, argv, "c:hl:pqv")) != -1) {
48	#endif
49	switch (c) {
50	case 'c':
51	confile = optarg;
52	break;
53	case 'h':
54	usage();
55	exit(ERROR_UNDEFINED);
56	break;
57	case 'l':
58	strncat(logfile, optarg, PATH_MAX - 1);
59	break;
60	#ifdef ENCRYPTED_PASSWORDS
61	case 'p':
62	options \|= OPTION_PASSWORD_EDITOR;
63	break;
64	#endif
65	case 'q':
66	options &= OPTION_DETAILS_CLEAR;
67	options \|= OPTION_DETAILS_QUIET;
68	break;
69	case 'v':
70	options &= OPTION_DETAILS_CLEAR;
71	options \|= OPTION_DETAILS_VERBOSE;
72	break;
73	default:
74	usage();
75	exit(ERROR_UNDEFINED);
76	break;
77	}
78	}
79
80	tty_store();
81	catch_signals();
82
83	create_homedir();
84
85	read_config(confile);
86	open_logfile();
87
88	#ifdef ENCRYPTED_PASSWORDS
89	read_passwords();
90
91	if ((options & OPTION_PASSWORD_EDITOR))
92	password_editor();
93	#endif
94
95	setuid(ruid); /* Capability to regain root privileges
96	will not be needed any more. */
97
98
99	for (ca = accounts; ca; ca = ca->next) {
100
101	#ifndef SSL_TLS
102	if (init_connection(ca->server, ca->port))
103	#else
104	if (init_connection(ca->server, ca->port, ca->ssl))
105	#endif
106	continue;
107
108	r = greeting_response();
109
110	if (r == RESPONSE_BYE \|\| check_capabilities())
111	continue;
112
113	#ifdef DEBUG
114	test();
115	#endif
116
117	if (r != RESPONSE_PREAUTH) {
118	if (ca->passwdattr == PASSWORD_NONE) {
119	printf("Enter password for %s@%s: ", ca->username, ca->server);
120	get_password(ca->password, PASSWORD_LEN);
121	}
122	if (login(ca->username, ca->password))
123	continue;
124	}
125	check_namespace();
126
127	for (cm = ca->mboxes; cm; cm = cm->next)
128	if (!*cm->filters)
129	mailbox_status(cm->name);
130	else if (!select_mailbox(cm->name)) {
131	apply_filters(cm->filters);
132	close_mailbox();
133	}
134	logout();
135
136	close_connection();
137	}
138
139	secmem_clear();
140	close_logfile();
141	corefile_restore();
142
143	exit(0);
144	}
145
146
147	/*
148	* Print a very brief usage message.
149	*/
150	void usage(void)
151	{
152	fprintf(stderr,
153	"usage: imapfilter [-h"
154	#ifdef ENCRYPTED_PASSWORDS
155	"p"
156	#endif
157	"qv] [-c configfile] [-l logfile]\n");
158	}