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/* Copyright 1993-95 by Carl Harris, Jr. Copyright 1996 by Eric S. Raymond
* All rights reserved.
* For license terms, see the file COPYING in this directory.
*/
/***********************************************************************
module: options.c
project: fetchmail
programmer: Carl Harris, ceharris@mal.com
description: command-line option processing
***********************************************************************/
#include <config.h>
#include <stdio.h>
#include <pwd.h>
#include "getopt.h"
#include "fetchmail.h"
#define LA_VERSION 1
#define LA_ALL 2
#define LA_KILL 3
#define LA_KEEP 4
#define LA_VERBOSE 5
#define LA_SILENT 6
#define LA_STDOUT 7
#define LA_FLUSH 8
#define LA_PROTOCOL 9
#define LA_DAEMON 10
#define LA_RCFILE 11
#define LA_USERNAME 12
#define LA_REMOTEFILE 13
#define LA_PORT 14
#define LA_SMTPHOST 15
#define LA_MDA 16
#define LA_LOGFILE 17
#define LA_QUIT 18
#define LA_NOREWRITE 19
#define LA_CHECK 20
#define LA_HELP 21
#define LA_YYDEBUG 22
static char *shortoptions = "P:p:VaKkvS:m:sFd:f:u:r:L:qN?";
static struct option longoptions[] = {
{"version", no_argument, (int *) 0, LA_VERSION },
{"all", no_argument, (int *) 0, LA_ALL },
{"kill", no_argument, (int *) 0, LA_KILL },
{"keep", no_argument, (int *) 0, LA_KEEP },
{"verbose", no_argument, (int *) 0, LA_VERBOSE },
{"silent", no_argument, (int *) 0, LA_SILENT },
{"flush", no_argument, (int *) 0, LA_FLUSH },
{"protocol", required_argument, (int *) 0, LA_PROTOCOL },
{"proto", required_argument, (int *) 0, LA_PROTOCOL },
{"daemon", required_argument, (int *) 0, LA_DAEMON },
{"fetchmailrc",required_argument,(int *) 0, LA_RCFILE },
{"user", required_argument, (int *) 0, LA_USERNAME },
{"username", required_argument, (int *) 0, LA_USERNAME },
{"remote", required_argument, (int *) 0, LA_REMOTEFILE },
{"port", required_argument, (int *) 0, LA_PORT },
{"smtphost", required_argument, (int *) 0, LA_SMTPHOST },
{"mda", required_argument, (int *) 0, LA_MDA },
{"logfile", required_argument, (int *) 0, LA_LOGFILE },
{"quit", no_argument, (int *) 0, LA_QUIT },
{"norewrite", no_argument, (int *) 0, LA_NOREWRITE },
{"check", no_argument, (int *) 0, LA_CHECK },
{"help", no_argument, (int *) 0, LA_HELP },
{"yydebug", no_argument, (int *) 0, LA_YYDEBUG },
{(char *) 0, no_argument, (int *) 0, 0 }
};
/*********************************************************************
function: parsecmdline
description: parse/validate the command line options.
arguments:
argc argument count.
argv argument strings.
queryctl pointer to a struct hostrec to receive the parsed
options.
return value: if positive, argv index of last parsed option + 1
(presumes one or more server names follows).
if zero, the command line switches are such that
no server names are required (e.g. --version).
if negative, the command line is has one or more
syntax errors.
calls: none.
globals: writes outlevel, versioninfo, yydebug, logfile,
poll_interval, quitmode, rcfile
*********************************************************************/
int parsecmdline (argc,argv,queryctl)
int argc;
char **argv;
struct hostrec *queryctl;
{
int c,i;
int fflag = 0; /* TRUE when -o or -c has been specified */
int errflag = 0; /* TRUE when a syntax error is detected */
int option_index;
int got_kill = 0; /* TRUE when --kill is specified */
extern int optind, opterr; /* defined in getopt(2) */
extern char *optarg; /* defined in getopt(2) */
memset(queryctl, '\0', sizeof(struct hostrec)); /* start clean */
while (!errflag &&
(c = getopt_long(argc,argv,shortoptions,
longoptions,&option_index)) != -1) {
switch (c) {
case 'V':
case LA_VERSION:
versioninfo = !0;
break;
case 'a':
case LA_ALL:
queryctl->fetchall = !0;
break;
case 'K':
case LA_KILL:
queryctl->keep = 0;
got_kill = 1;
break;
case 'k':
case LA_KEEP:
queryctl->keep = !0;
got_kill = 0;
break;
case 'v':
case LA_VERBOSE:
outlevel = O_VERBOSE;
break;
case 's':
case LA_SILENT:
outlevel = O_SILENT;
break;
case 'F':
case LA_FLUSH:
queryctl->flush = !0;
break;
case 'p':
case LA_PROTOCOL:
/* XXX -- should probably use a table lookup here */
if (strcasecmp(optarg,"pop2") == 0)
queryctl->protocol = P_POP2;
else if (strcasecmp(optarg,"pop3") == 0)
queryctl->protocol = P_POP3;
else if (strcasecmp(optarg,"imap") == 0)
queryctl->protocol = P_IMAP;
else if (strcasecmp(optarg,"apop") == 0)
queryctl->protocol = P_APOP;
else if (strcasecmp(optarg,"kpop") == 0)
queryctl->protocol = P_KPOP;
else {
fprintf(stderr,"Invalid protocol '%s'\n specified.\n", optarg);
errflag++;
}
break;
case 'd':
case LA_DAEMON:
poll_interval = atoi(optarg);
break;
case 'f':
case LA_RCFILE:
rcfile = (char *) xmalloc(strlen(optarg)+1);
strcpy(rcfile,optarg);
break;
case 'u':
case LA_USERNAME:
strncpy(queryctl->remotename,optarg,sizeof(queryctl->remotename)-1);
break;
case 'r':
case LA_REMOTEFILE:
strncpy(queryctl->mailbox,optarg,sizeof(queryctl->mailbox)-1);
break;
case 'm':
case LA_MDA:
strncpy(queryctl->mda,optarg,sizeof(queryctl->mda));
break;
case 'P':
case LA_PORT:
queryctl->port = atoi(optarg);
break;
case 'S':
case LA_SMTPHOST:
if (fflag)
errflag++;
else {
fflag++;
strncpy(queryctl->smtphost,optarg,sizeof(queryctl->smtphost)-1);
}
break;
case 'L':
case LA_LOGFILE:
logfile = optarg;
break;
case 'q':
case LA_QUIT:
quitmode = 1;
break;
case 'N':
case LA_NOREWRITE:
queryctl->norewrite = 1;
break;
case 'c':
case LA_CHECK:
check_only = 1;
break;
case LA_YYDEBUG:
yydebug = 1;
break;
case '?':
case LA_HELP:
default:
errflag++;
}
}
if (errflag) {
/* squawk if syntax errors were detected */
fputs("usage: fetchmail [options] [server ...]\n", stderr);
fputs(" Options are as follows:\n",stderr);
fputs(" -?, --help display this option help\n", stderr);
fputs(" -p, --protocol specify pop2, pop3, imap, apop, rpop, kpop\n", stderr);
fputs(" -V, --version display version info\n", stderr);
fputs(" -a, --all retrieve old and new messages\n", stderr);
fputs(" -F, --flush delete old messages from server\n", stderr);
fputs(" -K, --kill delete new messages after retrieval\n", stderr);
fputs(" -k, --keep save new messages after retrieval\n", stderr);
fputs(" -S, --smtphost set SMTP forwarding host\n", stderr);
fputs(" -q, --quit kill daemon process\n", stderr);
fputs(" -s, --silent work silently\n", stderr);
fputs(" -v, --verbose work noisily (diagnostic output)\n", stderr);
fputs(" -d, --daemon run as a daemon once per n seconds\n", stderr);
fputs(" -f, --fetchmailrc specify alternate run control file\n", stderr);
fputs(" -u, --username specify users's login on server\n", stderr);
fputs(" -r, --remote specify remote folder name\n", stderr);
fputs(" -L, --logfile specify logfile name\n", stderr);
fputs(" -c, --check check for messages without retrieving\n", stderr);
return(-1);
}
return(optind);
}
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