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189 lines
4.5 KiB
189 lines
4.5 KiB
/* |
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* UserServer/0.1 |
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* common.c - Common functions |
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* |
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* Copyright (C) 2002 Gergely Polonkai |
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* Copyright (C) 2002-2006 P-Team Programmers' Group |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have recieved a copy of the GNU General Public License |
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* along with this program; if not, write to Free Software |
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA, 02111-1307, USA. |
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* |
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* GNU GPL is in doc/COPYING |
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*/ |
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#include <stdio.h> |
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#include <string.h> |
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#include <ctype.h> |
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#include <stdlib.h> |
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#include <pwd.h> |
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#include <crypt.h> |
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#include "userv.h" |
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#include "functions.h" |
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char table[] = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789"; |
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int |
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ParseConfig(void) { |
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FILE *cf; |
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char buf[1024]; |
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char *line; |
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int nl = 0; |
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if ((cf = fopen("/etc/userv.conf", "r")) == NULL) |
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return ERR_NOCF; |
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memset(&buf, 0, 1024); |
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while (fgets((char *)&buf, 1023, cf)) { |
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char *param; |
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int i; |
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nl++; |
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if ((line = trim(buf, NULL))) { |
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if (strncmp(line, "listen ", 7) == 0) { |
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param = strchr(line, ' ') + 1; |
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for (i = 0; i < strlen(param); i++) |
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if (isspace(*(param + i))) { |
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*(param + i) = 0; |
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break; |
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} |
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if (!valid_ip(param)) |
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return nl; |
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if (AddListen(param) != ERR_OK) |
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return ERR_NOMEM; |
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} |
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if (strncmp(line, "confserv ", 9) == 0) { |
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param = strchr(line, ' ') + 1; |
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for (i = 0; i < strlen(param); i++) |
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if (isspace(*(param + 1))) { |
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*(param + i) = 0; |
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break; |
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} |
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if (!valid_ip(param)) |
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return nl; |
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if (AddConfig(param) != ERR_OK) |
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return ERR_NOMEM; |
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} |
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if (strncmp(line, "server ", 7) == 0) { |
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param = strchr(line, ' ') + 1; |
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for (i = 0; i < strlen(param); i++) |
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if (isspace(*(param + 1))) { |
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*(param + i) = 0; |
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break; |
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} |
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if (!valid_ip(param)) |
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return nl; |
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if (AddPeer(param) != ERR_OK) |
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return ERR_NOMEM; |
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} |
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if (strncmp(line, "client ", 7) == 0) { |
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param = strchr(line, ' ') + 1; |
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for (i = 0; i < strlen(param); i++) |
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if (isspace(*(param + i))) { |
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*(param + i) = 0; |
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break; |
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} |
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if (!valid_ip(param)) |
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return nl; |
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if (AddClient(param) != ERR_OK) |
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return ERR_NOMEM; |
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} |
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if (strncmp(line, "user ", 5) == 0) { |
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param = strchr(line, ' ') + 1; |
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for (i = 0; i < strlen(param); i++) |
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if (isspace(*(param + i))) { |
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*(param + i) = 0; |
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break; |
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} |
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if (!valid_user(param)) |
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return nl; |
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if (AddUser(param) != ERR_OK) |
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return ERR_NOMEM; |
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} |
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free(line); |
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} |
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memset(buf, 0, 1024); |
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} |
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fclose(cf); |
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return ERR_OK; |
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} |
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int |
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Is_UID_exist(uid_t uid) { |
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if (getpwuid(uid) == NULL) |
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return 0; |
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return 1; |
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} |
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int |
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pwcheck(char *uname, char *passw) { |
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struct passwd *pwentry; |
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char buf[1024]; |
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FILE *fd; |
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char *pwd; |
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if ((pwentry = getpwnam(uname)) == NULL) |
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return ERR_NOUSER; |
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if (strcmp(pwentry->pw_passwd, "x") == 0) { |
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if ((fd = fopen("/etc/shadow", "r")) == NULL) |
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return ERR_NOSHADOW; |
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memset(&buf, 0, 1024); |
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while (fgets((char *)&buf, 1023, fd)) { |
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if (strncmp((char *)&buf, uname, strlen(uname)) == 0) |
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break; |
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memset(&buf, 0, 1024); |
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} |
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fclose(fd); |
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} else |
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strcpy((char *)&buf, pwentry->pw_passwd); |
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pwd = strchr((char *)&buf, ':') + 1; |
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if (pwd - 1 == NULL) |
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return ERR_NOPASS; |
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*(strchr(pwd, ':')) = 0; |
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if (strcmp(crypt(passw, pwd), pwd) == 0) |
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return ERR_OK; |
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return ERR_BADPASS; |
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} |
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void |
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salt(char *where) { |
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int i; |
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if (!where) |
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return; |
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strncpy(where, "$1$", 3); |
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for (i = 3; i < 11; i++) |
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where[i] = table[(int)(1.0 * strlen(table) * rand() / (RAND_MAX + 1.0))]; |
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where[11] = '$'; |
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where[12] = 0; |
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} |
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void |
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tempname(char *where, size_t len) { |
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int i; |
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if (!where) |
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return; |
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for (i = 0; i < len; i++) |
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where[i] = table[(int)(1.0 * strlen(table) * rand() / (RAND_MAX + 1.0))]; |
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where[len] = 0; |
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} |
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