Diffstat (limited to 'noncore/settings/networksettings/ppp/runtests.cpp') (more/less context) (ignore whitespace changes)
| -rw-r--r-- | noncore/settings/networksettings/ppp/runtests.cpp | 279 |
1 files changed, 279 insertions, 0 deletions
diff --git a/noncore/settings/networksettings/ppp/runtests.cpp b/noncore/settings/networksettings/ppp/runtests.cpp new file mode 100644 index 0000000..83ef2ea --- a/dev/null +++ b/noncore/settings/networksettings/ppp/runtests.cpp @@ -0,0 +1,279 @@ +/* + * kPPP: A pppd front end for the KDE project + * + * $Id$ + * + * Copyright (C) 1997 Bernd Johannes Wuebben + * wuebben@math.cornell.edu + * + * This file was contributed by Mario Weilguni <mweilguni@sime.com> + * Thanks Mario ! + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this program; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <qdir.h> +#include "runtests.h" +#include <ctype.h> +#include <unistd.h> +#include <qmessagebox.h> +#include <sys/stat.h> +#include <stdlib.h> +#include <sys/types.h> +#include <pwd.h> +#include <netinet/in.h> + +#ifdef HAVE_RESOLV_H +#include <arpa/nameser.h> +#include <resolv.h> +#endif + +#ifndef _PATH_RESCONF +#define _PATH_RESCONF "/etc/resolv.conf" +#endif + +//#include <klocale.h> +#define i18n QObject::tr +#include "pppdata.h" + +// initial effective uid (main.cpp) +extern uid_t euid; + +// secure pppd location (opener.cpp) +extern const char* pppdPath(); + +// shamelessly stolen from pppd-2.3.5 +/******************************************************************** + * + * Internal routine to decode the version.modification.patch level + */ + +static void decode_version (const char *_buf, int *version, + int *modification, int *patch) + { + char *buffer = qstrdup(_buf); + char *buf = buffer; + *version = (int) strtoul (buf, &buf, 10); + *modification = 0; + *patch = 0; + + if (*buf == '.') + { + ++buf; + *modification = (int) strtoul (buf, &buf, 10); + if (*buf == '.') + { + ++buf; + *patch = (int) strtoul (buf, &buf, 10); + } + } + + if (*buf != '\0') + { + *version = + *modification = + *patch = 0; + } + + delete [] buffer; + } + + +void pppdVersion(int *version, int *modification, int *patch) { + char buffer[30]; + const char *pppd; + char *query; + + *version = *modification = *patch = 0; + + // locate pppd + if(!(pppd = pppdPath())) + return; + + // call pppd with --version option + if(!(query = new char[strlen(pppd)+25])) + return; + strcpy(query, pppd); + // had to add a dummy device to prevent a "no device specified + // and stdin is not a tty" error from newer pppd versions. + strcat(query, " --version /dev/tty 2>&1"); + fflush(0L); + FILE *output = popen(query, "r"); + delete [] query; + if(!output) + return; + + // read output + int size = fread(buffer, sizeof(char), 29, output); + + if(ferror(output)) { + pclose(output); + return; + } + pclose(output); + buffer[size] = '\0'; + + // find position of version number x.y.z + char *p = buffer; + while(*p && !isdigit(*p)) + p++; + if (*p == 0) + return; + char *p2 = p; + while(*p2 == '.' || isdigit(*p2)) + p2++; + *p2 = '\0'; + + decode_version(p, version, modification, patch); +} + + +int uidFromName(const char *uname) { + struct passwd *pw; + + setpwent(); + while((pw = getpwent()) != NULL) { + if(strcmp(uname, pw->pw_name) == 0) { + int uid = pw->pw_uid; + endpwent(); + return uid; + } + } + + endpwent(); + return -1; +} + + +const char *homedirFromUid(uid_t uid) { + struct passwd *pw; + char *d = 0; + + setpwent(); + while((pw = getpwent()) != NULL) { + if(pw->pw_uid == uid) { + d = strdup(pw->pw_dir); + endpwent(); + return d; + } + } + + endpwent(); + return d; +} + + +const char* getHomeDir() { + static const char *hd = 0; + static bool ranTest = false; + if(!ranTest) { + hd = homedirFromUid(getuid()); + ranTest = true; + } + + return hd; +} + + +int runTests() { + int warning = 0; + + // Test pre-1: check if the user is allowed to dial-out + if(access("/etc/kppp.allow", R_OK) == 0 && getuid() != 0) { + bool access = FALSE; + FILE *f; + if((f = fopen("/etc/kppp.allow", "r")) != NULL) { + char buf[2048]; // safe + while(f != NULL && !feof(f)) { + if(fgets(buf, sizeof(buf), f) != NULL) { + QString s(buf); + + s = s.stripWhiteSpace(); + if(s[0] == '#' || s.length() == 0) + continue; + + if((uid_t)uidFromName(QFile::encodeName(s)) == getuid()) { + access = TRUE; + fclose(f); + f = NULL; + } + } + } + if(f) + fclose(f); + } + + if(!access) { + QMessageBox::warning(0,"error", + i18n("You're not allowed to dial out with " + "kppp.\nContact your system administrator.")); + return TEST_CRITICAL; + } + } + + // Test 1: search the pppd binary + const char *f = pppdPath(); + + if(!f) { + QMessageBox::warning(0,"error", + i18n("Cannot find the PPP daemon!\n" + "Make sure that pppd is installed.")); + warning++; + } + + // Test 2: check access to the pppd binary + if(f) { +#if 0 + if(access(f, X_OK) != 0 /* && geteuid() != 0 */) { + KMessageBox::warning(0, + i18n("You do not have the permission " + "to start pppd!\n" + "Contact your system administrator " + "and ask to get access to pppd.")); + return TEST_CRITICAL; + } +#endif + + if(geteuid() != 0) { + struct stat st; + stat(f, &st); + if(st.st_uid != 0 || (st.st_mode & S_ISUID) == 0) { + QMessageBox::warning(0,"error", + i18n("You don't have sufficient permission to run\n" + "%1\n" + "Please make sure that kppp is owned by root " + "and has the SUID bit set.").arg(f)); + warning++; + } + } + } + + // Test 5: check for existence of /etc/resolv.conf + if (access(_PATH_RESCONF, R_OK) != 0) { + QString file = _PATH_RESCONF" "; + QString msgstr = i18n("%1 is missing or can't be read!\n" + "Ask your system administrator to create " + "this file (can be empty) with appropriate " + "read and write permissions.").arg(file); + QMessageBox::warning(0, "errror", msgstr); + warning ++; + } + + if(warning == 0) + return TEST_OK; + else + return TEST_WARNING; +} + |