119 lines
3.7 KiB
C
119 lines
3.7 KiB
C
/*
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* Copyright (c) 1989 Regents of the University of California.
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* All rights reserved. The Berkeley software License Agreement
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* specifies the terms and conditions for redistribution.
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*/
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#include <popper.h>
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RCSID("$Id: pop_get_command.c,v 1.1.1.1 2000/06/16 18:46:25 thorpej Exp $");
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/*
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* get_command: Extract the command from an input line form a POP client
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*/
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static state_table states[] = {
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{auth1, "user", 1, 1, pop_user, {auth1, auth2}},
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{auth2, "pass", 1, 99, pop_pass, {auth1, trans}},
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#ifdef RPOP
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{auth2, "rpop", 1, 1, pop_rpop, {auth1, trans}},
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#endif /* RPOP */
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{auth1, "quit", 0, 0, pop_quit, {halt, halt}},
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{auth2, "quit", 0, 0, pop_quit, {halt, halt}},
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{trans, "stat", 0, 0, pop_stat, {trans, trans}},
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{trans, "list", 0, 1, pop_list, {trans, trans}},
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{trans, "retr", 1, 1, pop_send, {trans, trans}},
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{trans, "dele", 1, 1, pop_dele, {trans, trans}},
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{trans, "noop", 0, 0, NULL, {trans, trans}},
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{trans, "rset", 0, 0, pop_rset, {trans, trans}},
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{trans, "top", 2, 2, pop_send, {trans, trans}},
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{trans, "last", 0, 0, pop_last, {trans, trans}},
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{trans, "quit", 0, 0, pop_updt, {halt, halt}},
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{trans, "help", 0, 0, pop_help, {trans, trans}},
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#ifdef UIDL
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{trans, "uidl", 0, 1, pop_uidl, {trans, trans}},
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#endif
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#ifdef XOVER
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{trans, "xover", 0, 0, pop_xover, {trans, trans}},
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#endif
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#ifdef XDELE
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{trans, "xdele", 1, 2, pop_xdele, {trans, trans}},
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#endif
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{(state) 0, NULL, 0, 0, NULL, {halt, halt}},
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};
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state_table *
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pop_get_command(POP *p, char *mp)
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{
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state_table * s;
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char buf[MAXMSGLINELEN];
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/* Save a copy of the original client line */
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#ifdef DEBUG
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if(p->debug) strlcpy (buf, mp, sizeof(buf));
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#endif /* DEBUG */
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/* Parse the message into the parameter array */
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if ((p->parm_count = pop_parse(p,mp)) < 0) return(NULL);
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/* Do not log cleartext passwords */
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#ifdef DEBUG
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if(p->debug){
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if(strcmp(p->pop_command,"pass") == 0)
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pop_log(p,POP_DEBUG,"Received: \"%s xxxxxxxxx\"",p->pop_command);
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else {
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/* Remove trailing <LF> */
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buf[strlen(buf)-2] = '\0';
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pop_log(p,POP_DEBUG,"Received: \"%s\"",buf);
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}
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}
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#endif /* DEBUG */
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/* Search for the POP command in the command/state table */
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for (s = states; s->command; s++) {
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/* Is this a valid command for the current operating state? */
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if (strcmp(s->command,p->pop_command) == 0
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&& s->ValidCurrentState == p->CurrentState) {
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/* Were too few parameters passed to the command? */
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if (p->parm_count < s->min_parms) {
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pop_msg(p,POP_FAILURE,
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"Too few arguments for the %s command.",
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p->pop_command);
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return NULL;
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}
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/* Were too many parameters passed to the command? */
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if (p->parm_count > s->max_parms) {
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pop_msg(p,POP_FAILURE,
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"Too many arguments for the %s command.",
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p->pop_command);
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return NULL;
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}
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/* Return a pointer to the entry for this command in
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the command/state table */
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return (s);
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}
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}
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/* The client command was not located in the command/state table */
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pop_msg(p,POP_FAILURE,
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"Unknown command: \"%s\".",p->pop_command);
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return NULL;
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}
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int
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pop_help (POP *p)
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{
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state_table *s;
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pop_msg(p, POP_SUCCESS, "help");
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for (s = states; s->command; s++) {
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fprintf (p->output, "%s\r\n", s->command);
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}
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fprintf (p->output, ".\r\n");
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fflush (p->output);
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return POP_SUCCESS;
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}
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