diff options
Diffstat (limited to 'src/file.c')
| -rw-r--r-- | src/file.c | 373 |
1 files changed, 373 insertions, 0 deletions
diff --git a/src/file.c b/src/file.c new file mode 100644 index 0000000..e4cde62 --- /dev/null +++ b/src/file.c @@ -0,0 +1,373 @@ +/* + * active port forwarder - software for secure forwarding + * Copyright (C) 2003,2004,2005 jeremian <jeremian [at] poczta.fm> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + * + */ + +#include "file.h" +#include "activefor.h" +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <limits.h> +#include <ctype.h> + +int +parse_line(char* buff, char* tab1, char* tab2) +{ + int state, i, j, lastDot; + state = i = j = 0; + lastDot = -1; + while (buff[i] != 0) { + if (buff[i] == '#') { + if ((i > 0) && (buff[i-1] == '\\')) { + --j; + } + else { + break; + } + } + switch (state) { + case 0: { /* before option name */ + if (!isspace(buff[i])) { + tab1[j] = buff[i]; + j = 1; + state = 1; + } + break; + } + case 1: { /* option */ + if (isspace(buff[i])) { + tab1[j] = 0; + state = 2; + j = 0; + } + else { + tab1[j] = buff[i]; + ++j; + } + break; + } + case 2: { /* before option value */ + if (!isspace(buff[i])) { + if (buff[i] != '.') { + tab2[j] = buff[i]; + j = 1; + } + state = 3; + } + break; + } + case 3: { /* option value */ + if (buff[i] == '.') { + lastDot = j; + } + else if (!isspace(buff[i])) { + lastDot = -1; + } + else if (lastDot == -1) { + lastDot = j; + } + tab2[j] = buff[i]; + ++j; + break; + } + } + ++i; + } + if (lastDot != -1) { + tab2[lastDot] = 0; + } + if (state == 3) { + return 2; + } + if (state == 0) { + return 0; + } + return 1; +} + +ConfigurationT +parsefile(char* name, int* status) +{ + static ConfigurationT cfg; + FILE* file = NULL; + int state, i, n, listencount, managecount; + char buff[256]; + char helpbuf1[256]; + char helpbuf2[256]; + + *status = 1; + + memset(buff, 0, 256); + + cfg.certif = NULL; + cfg.keys = NULL; + cfg.size = 0; + cfg.realmtable = NULL; + cfg.logging = 0; + cfg.socklogging = 0; + cfg.logfnam = NULL; + cfg.logsport = NULL; + cfg.dateformat = NULL; + + state = F_UNKNOWN; + + file = fopen(name, "r"); + if (file == NULL) { + return cfg; + } + + while (fgets(buff, 256, file) != NULL) { /* first loop - counting realm */ + helpbuf1[0] = 0; + parse_line(buff, helpbuf1, helpbuf2); + if (strcmp(helpbuf1, "realm")==0) { + ++cfg.size; + } + } + rewind(file); + + cfg.realmtable = calloc(cfg.size, sizeof(RealmT)); + for (i=0; i<cfg.size; ++i) { + cfg.realmtable[i].pass[0] = 1; + cfg.realmtable[i].pass[1] = 2; + cfg.realmtable[i].pass[2] = 3; + cfg.realmtable[i].pass[3] = 4; + } + cfg.size = 0; + *status = 0; + + listencount = managecount = 0; + + + while (fgets(buff, 256, file) != NULL) { /* second loop - counting listen */ + (*status)++; + state = parse_line(buff, helpbuf1, helpbuf2); + if (state) { + if (strcmp(helpbuf1, "realm")==0) { + ++cfg.size; + if (listencount != managecount) { + return cfg; + } + listencount = managecount = 0; + } + else if (strcmp(helpbuf1, "listen")==0) { + if (cfg.size == 0) { + return cfg; + } + ++cfg.realmtable[cfg.size-1].usrclinum; + ++listencount; + } + else if (strcmp(helpbuf1, "manage")==0) { + if (cfg.size == 0) { + return cfg; + } + ++managecount; + } + } + } + rewind(file); + + if (listencount != managecount) { + return cfg; + } + + for (i=0; i<cfg.size; ++i) { + cfg.realmtable[i].usrclitable = calloc(cfg.realmtable[i].usrclinum, sizeof(UsrCliT)); + } + + cfg.size = 0; + *status = 0; + + + while (fgets(buff, 256, file) != NULL) { /* third loop - parsing file */ + (*status)++; + state = parse_line(buff, helpbuf1, helpbuf2); + if (helpbuf1[0] == '#') { + memset(buff, 0, 256); + continue; + } + if (state == 1) { + if (strcmp(helpbuf1, "realm")==0) { + ++cfg.size; + TYPE_SET_SSL(cfg.realmtable[cfg.size-1].type); + TYPE_SET_ZLIB(cfg.realmtable[cfg.size-1].type); + listencount = managecount = 0; + } + else if (cfg.size == 0) { + return cfg; + } + else if (strcmp(helpbuf1, "nossl")==0) { + TYPE_UNSET_SSL(cfg.realmtable[cfg.size-1].type); + } + else if (strcmp(helpbuf1, "nozlib")==0) { + TYPE_UNSET_ZLIB(cfg.realmtable[cfg.size-1].type); + } + else if (strcmp(helpbuf1, "baseport")==0) { + cfg.realmtable[cfg.size-1].baseport = 1; + } + else if (strcmp(helpbuf1, "dnslookups")==0) { + cfg.realmtable[cfg.size-1].dnslookups = 1; + } + else if (strcmp(helpbuf1, "ipv4")==0) { + if (TYPE_IS_UNSPEC(cfg.realmtable[cfg.size-1].type)) { + TYPE_SET_IPV4(cfg.realmtable[cfg.size-1].type); + } + else { + return cfg; + } + } + else if (strcmp(helpbuf1, "ipv6")==0) { + if (TYPE_IS_UNSPEC(cfg.realmtable[cfg.size-1].type)) { + TYPE_SET_IPV6(cfg.realmtable[cfg.size-1].type); + } + else { + return cfg; + } + } + else { + return cfg; + } + } + else if (state == 2) { + if (strcmp(helpbuf1, "realm")==0) { + ++cfg.size; + TYPE_SET_SSL(cfg.realmtable[cfg.size-1].type); + TYPE_SET_ZLIB(cfg.realmtable[cfg.size-1].type); + listencount = managecount = 0; + cfg.realmtable[cfg.size-1].realmname = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.realmtable[cfg.size-1].realmname, helpbuf2); + } + else if (strcmp(helpbuf1, "certificate")==0) { + cfg.certif = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.certif, helpbuf2); + } + else if (strcmp(helpbuf1, "key")==0) { + cfg.keys = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.keys, helpbuf2); + } + else if (strcmp(helpbuf1, "heavylog")==0) { + if (cfg.logging) { + return cfg; + } + cfg.logging = 3; + cfg.logfnam = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.logfnam, helpbuf2); + } + else if (strcmp(helpbuf1, "lightlog")==0) { + if (cfg.logging) { + return cfg; + } + cfg.logging = 1; + cfg.logfnam = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.logfnam, helpbuf2); + } + else if (strcmp(helpbuf1, "heavysocklog")==0) { + if (cfg.socklogging) { + return cfg; + } + cfg.socklogging = 3; + cfg.logsport = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.logsport, helpbuf2); + } + else if (strcmp(helpbuf1, "lightsocklog")==0) { + if (cfg.socklogging) { + return cfg; + } + cfg.socklogging = 1; + cfg.logsport = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.logsport, helpbuf2); + } + else if (strcmp(helpbuf1, "dateformat")==0) { + cfg.dateformat = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.dateformat, helpbuf2); + } + else if (cfg.size == 0) { + return cfg; + } + else if (strcmp(helpbuf1, "hostname")==0) { + cfg.realmtable[cfg.size-1].hostname = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.realmtable[cfg.size-1].hostname, helpbuf2); + } + else if (strcmp(helpbuf1, "listen")==0) { + cfg.realmtable[cfg.size-1].usrclitable[listencount].lisportnum=calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.realmtable[cfg.size-1].usrclitable[listencount].lisportnum, helpbuf2); + ++listencount; + } + else if (strcmp(helpbuf1, "pass")==0) { + n = strlen(helpbuf2); + memset(cfg.realmtable[cfg.size-1].pass, 0, 4); + for (i = 0; i < n; ++i) { + cfg.realmtable[cfg.size-1].pass[i%4] += helpbuf2[i]; + } + } + else if (strcmp(helpbuf1, "manage")==0) { + cfg.realmtable[cfg.size-1].usrclitable[managecount].manportnum=calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.realmtable[cfg.size-1].usrclitable[managecount].manportnum, helpbuf2); + ++managecount; + } + else if (strcmp(helpbuf1, "users")==0) { + cfg.realmtable[cfg.size-1].users = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.realmtable[cfg.size-1].users, helpbuf2); + } + else if (strcmp(helpbuf1, "timeout")==0) { + cfg.realmtable[cfg.size-1].timeout = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.realmtable[cfg.size-1].timeout, helpbuf2); + } + else if (strcmp(helpbuf1, "clients")==0) { + cfg.realmtable[cfg.size-1].clients = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.realmtable[cfg.size-1].clients, helpbuf2); + } + else if (strcmp(helpbuf1, "raclients")==0) { + cfg.realmtable[cfg.size-1].raclients = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.realmtable[cfg.size-1].raclients, helpbuf2); + } + else if (strcmp(helpbuf1, "usrpcli")==0) { + cfg.realmtable[cfg.size-1].usrpcli = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.realmtable[cfg.size-1].usrpcli, helpbuf2); + } + else if (strcmp(helpbuf1, "climode")==0) { + cfg.realmtable[cfg.size-1].clim = calloc(strlen(helpbuf2)+1, sizeof(char)); + strcpy(cfg.realmtable[cfg.size-1].clim, helpbuf2); + } + else if (strcmp(helpbuf1, "proto")==0) { + if (TYPE_IS_SET(cfg.realmtable[cfg.size-1].type)) { + return cfg; + } + if (strcmp(helpbuf2, "tcp")==0) { + TYPE_SET_TCP(cfg.realmtable[cfg.size-1].type); + } + else if (strcmp(helpbuf2, "udp")==0) { + TYPE_SET_UDP(cfg.realmtable[cfg.size-1].type); + } + else { + return cfg; + } + } + else { + return cfg; + } + } + memset(buff, 0, 256); + } + + fclose(file); + + *status = 0; + return cfg; +} + |