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/*
* Copyright (c) 1989 Regents of the University of California.
* All rights reserved. The Berkeley software License Agreement
* specifies the terms and conditions for redistribution.
*/
#ifndef lint
static char copyright[] = "Copyright (c) 1990 Regents of the University of California.\nAll rights reserved.\n";
static char SccsId[] = "@(#)@(#)pop_get_command.c 2.1 2.1 3/18/91";
#endif
#include <stdio.h>
#include <sys/types.h>
#if defined(SOLARIS2) || defined(SYSV) || defined(AIX)
#include <string.h>
#else
#include <strings.h>
#endif
#include "popper.h"
/*
* get_command: Extract the command from an input line form a POP client
*/
static state_table states[] = {
auth1, "user", 1, 1, pop_user, {auth1, auth2},
auth2, "pass", 1, 1, pop_pass, {halt, trans},
auth1, "auth", 1, 2, pop_auth, {auth1, auth1},
#ifdef RPOP
auth2, "rpop", 1, 1, pop_rpop, {halt, trans},
#endif
#ifdef APOP
auth1, "apop", 2, 2, pop_apop, {halt, trans},
#endif
auth1, "quit", 0, 0, pop_quit, {halt, halt},
auth2, "quit", 0, 0, pop_quit, {halt, halt},
trans, "stat", 0, 0, pop_stat, {trans, trans},
trans, "list", 0, 1, pop_list, {trans, trans},
trans, "retr", 1, 1, pop_send, {trans, trans},
trans, "dele", 1, 1, pop_dele, {trans, trans},
trans, "noop", 0, 0, NULL, {trans, trans},
trans, "rset", 0, 0, pop_rset, {trans, trans},
trans, "top", 2, 2, pop_send, {trans, trans},
trans, "last", 0, 0, pop_last, {trans, trans},
trans, "xtnd", 1, 99, pop_xtnd, {trans, trans},
trans, "uidl", 0, 1, pop_uidl, {trans, trans},
trans, "euidl",0, 1, pop_euidl, {trans, trans},
trans, "quit", 0, 0, pop_updt, {halt, halt},
(state) 0, NULL, 0, 0, NULL, {halt, halt},
};
state_table *pop_get_command(p,mp)
POP * p;
register char * mp; /* Pointer to unparsed line
received from the client */
{
state_table * s;
char buf[MAXMSGLINELEN];
/* Save a copy of the original client line */
#ifdef DEBUG
if(p->debug) strncpy(buf, mp, sizeof(buf));
#endif
/* Parse the message into the parameter array */
if ((p->parm_count = pop_parse(p,mp)) < 0) return(NULL);
/* Do not log cleartext passwords */
#ifdef DEBUG
if(p->debug){
if(strcmp(p->pop_command,"pass") == 0)
pop_log(p,POP_DEBUG,"Received: \"%s xxxxxxxxx\"",p->pop_command);
else {
/* Remove trailing <LF> */
buf[strlen(buf)-2] = '\0';
pop_log(p,POP_DEBUG,"Received: \"%s\"",buf);
}
}
#endif
/* Search for the POP command in the command/state table */
for (s = states; s->command; s++) {
/* Is this a valid command for the current operating state? */
if (strcmp(s->command,p->pop_command) == 0
&& s->ValidCurrentState == p->CurrentState) {
/* Were too few parameters passed to the command? */
if (p->parm_count < s->min_parms) {
pop_msg(p,POP_FAILURE,
"Too few arguments for the %s command.",p->pop_command);
return((state_table *)0);
}
/* Were too many parameters passed to the command? */
if (p->parm_count > s->max_parms) {
pop_msg(p,POP_FAILURE,
"Too many arguments for the %s command.",p->pop_command);
return((state_table *)0);
}
/* Return a pointer to the entry for this command in
the command/state table */
return (s);
}
}
/* The client command was not located in the command/state table */
pop_msg(p,POP_FAILURE,"Unknown command: \"%s\".",p->pop_command);
return((state_table *)0);
}
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