diff options
Diffstat (limited to 'appl/popper/pop_auth.c')
| -rw-r--r-- | appl/popper/pop_auth.c | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/appl/popper/pop_auth.c b/appl/popper/pop_auth.c deleted file mode 100644 index 2c352b1a9cc9..000000000000 --- a/appl/popper/pop_auth.c +++ /dev/null @@ -1,183 +0,0 @@ -/* - * Copyright (c) 2004 Kungliga Tekniska Högskolan - * (Royal Institute of Technology, Stockholm, Sweden). - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * 3. Neither the name of the Institute nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <popper.h> -#ifdef SASL -#include <base64.h> -#include <pop_auth.h> -RCSID("$Id$"); - -/* - * auth: RFC1734 - */ - -static char * -getline(POP *p) -{ - char *buf = NULL; - size_t size = 1024; - buf = malloc(size); - if(buf == NULL) - return NULL; - *buf = '\0'; - while(fgets(buf + strlen(buf), size - strlen(buf), p->input) != NULL) { - char *p; - if((p = strchr(buf, '\n')) != NULL) { - while(p > buf && p[-1] == '\r') - p--; - *p = '\0'; - return buf; - } - /* just assume we ran out of buffer space, we'll catch eof - next round */ - size += 1024; - p = realloc(buf, size); - if(p == NULL) - break; - buf = p; - } - free(buf); - return NULL; -} - -static char auth_msg[128]; -void -pop_auth_set_error(const char *message) -{ - strlcpy(auth_msg, message, sizeof(auth_msg)); -} - -static struct auth_mech *methods[] = { -#ifdef KRB5 - &gssapi_mech, -#endif - NULL -}; - -static int -auth_execute(POP *p, struct auth_mech *m, void *state, const char *line) -{ - void *input, *output; - size_t input_length, output_length; - int status; - - if(line == NULL) { - input = NULL; - input_length = 0; - } else { - input = strdup(line); - if(input == NULL) { - pop_auth_set_error("out of memory"); - return POP_AUTH_FAILURE; - } - input_length = base64_decode(line, input); - if(input_length == (size_t)-1) { - pop_auth_set_error("base64 decode error"); - return POP_AUTH_FAILURE; - } - } - output = NULL; output_length = 0; - status = (*m->loop)(p, state, input, input_length, &output, &output_length); - if(output_length > 0) { - char *s; - base64_encode(output, output_length, &s); - fprintf(p->output, "+ %s\r\n", s); - fflush(p->output); - free(output); - free(s); - } - return status; -} - -static int -auth_loop(POP *p, struct auth_mech *m) -{ - int status; - void *state = NULL; - char *line; - - status = (*m->init)(p, &state); - - status = auth_execute(p, m, state, p->pop_parm[2]); - - while(status == POP_AUTH_CONTINUE) { - line = getline(p); - if(line == NULL) { - (*m->cleanup)(p, state); - return pop_msg(p, POP_FAILURE, "error reading data"); - } - if(strcmp(line, "*") == 0) { - (*m->cleanup)(p, state); - return pop_msg(p, POP_FAILURE, "terminated by client"); - } - status = auth_execute(p, m, state, line); - free(line); - } - - - (*m->cleanup)(p, state); - if(status == POP_AUTH_FAILURE) - return pop_msg(p, POP_FAILURE, "%s", auth_msg); - - status = login_user(p); - if(status != POP_SUCCESS) - return status; - return pop_msg(p, POP_SUCCESS, "authentication complete"); -} - -int -pop_auth (POP *p) -{ - int i; - - for (i = 0; methods[i] != NULL; ++i) - if (strcasecmp(p->pop_parm[1], methods[i]->name) == 0) - return auth_loop(p, methods[i]); - return pop_msg(p, POP_FAILURE, - "Authentication method %s unknown", p->pop_parm[1]); -} - -void -pop_capa_sasl(POP *p) -{ - int i; - - if(methods[0] == NULL) - return; - - fprintf(p->output, "SASL"); - for (i = 0; methods[i] != NULL; ++i) - fprintf(p->output, " %s", methods[i]->name); - fprintf(p->output, "\r\n"); -} -#endif |