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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.
*/
#include <popper.h>
RCSID("$Id: pop_get_command.c,v 1.16 2002/07/04 14:09:47 joda Exp $");
/*
* get_command: Extract the command from an input line form a POP client
*/
int pop_capa (POP *p);
static state_table states[] = {
{auth1, "user", 1, 1, pop_user, {auth1, auth2}},
{auth2, "pass", 1, 99, pop_pass, {auth1, trans}},
#ifdef RPOP
{auth2, "rpop", 1, 1, pop_rpop, {auth1, trans}},
#endif /* RPOP */
{auth1, "quit", 0, 0, pop_quit, {halt, halt}},
{auth2, "quit", 0, 0, pop_quit, {halt, halt}},
#ifdef CAPA
{auth1, "capa", 0, 0, pop_capa, {auth1, auth1}},
{auth2, "capa", 0, 0, pop_capa, {auth2, auth2}},
{trans, "capa", 0, 0, pop_capa, {trans, trans}},
#endif
{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, "quit", 0, 0, pop_updt, {halt, halt}},
{trans, "help", 0, 0, pop_help, {trans, trans}},
#ifdef UIDL
{trans, "uidl", 0, 1, pop_uidl, {trans, trans}},
#endif
#ifdef XOVER
{trans, "xover", 0, 0, pop_xover, {trans, trans}},
#endif
#ifdef XDELE
{trans, "xdele", 1, 2, pop_xdele, {trans, trans}},
#endif
{(state) 0, NULL, 0, 0, NULL, {halt, halt}},
};
int
pop_capa (POP *p)
{
/* Search for the POP command in the command/state table */
pop_msg (p,POP_SUCCESS, "Capability list follows");
fprintf(p->output, "USER\r\n");
fprintf(p->output, "TOP\r\n");
fprintf(p->output, "PIPELINING\r\n");
fprintf(p->output, "EXPIRE NEVER\r\n");
fprintf(p->output, "RESP-CODES\r\n");
#ifdef UIDL
fprintf(p->output, "UIDL\r\n");
#endif
#ifdef XOVER
fprintf(p->output, "XOVER\r\n");
#endif
#ifdef XDELE
fprintf(p->output, "XDELE\r\n");
#endif
if(p->CurrentState == trans)
fprintf(p->output, "IMPLEMENTATION %s-%s\r\n", PACKAGE, VERSION);
fprintf(p->output,".\r\n");
fflush(p->output);
p->flags |= POP_FLAG_CAPA;
return(POP_SUCCESS);
}
state_table *
pop_get_command(POP *p, char *mp)
{
state_table * s;
char buf[MAXMSGLINELEN];
/* Save a copy of the original client line */
#ifdef DEBUG
if(p->debug) strlcpy (buf, mp, sizeof(buf));
#endif /* DEBUG */
/* 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 /* DEBUG */
/* 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 NULL;
}
/* 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 NULL;
}
/* 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 NULL;
}
int
pop_help (POP *p)
{
state_table *s;
pop_msg(p, POP_SUCCESS, "help");
for (s = states; s->command; s++) {
fprintf (p->output, "%s\r\n", s->command);
}
fprintf (p->output, ".\r\n");
fflush (p->output);
return POP_SUCCESS;
}
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