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Diffstat (limited to 'src/utils.c')
| -rw-r--r-- | src/utils.c | 195 |
1 files changed, 0 insertions, 195 deletions
diff --git a/src/utils.c b/src/utils.c deleted file mode 100644 index 7426ce1..0000000 --- a/src/utils.c +++ /dev/null @@ -1,195 +0,0 @@ -/* - * utils.c - * ptunnel is licensed under the BSD license: - * - * Copyright (c) 2004-2011, Daniel Stoedle <daniels@cs.uit.no>, - * Yellow Lemon Software. All rights reserved. - * - * Copyright (c) 2017-2019, Toni Uhlig <matzeton@googlemail.com> - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are met: - * - * - Redistributions of source code must retain the above copyright notice, - * this list of conditions and the following disclaimer. - * - * - 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. - * - * - Neither the name of the Yellow Lemon Software 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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. - * - * Contacting the author: - * You can get in touch with me, Daniel Stødle (that's the Norwegian letter oe, - * in case your text editor didn't realize), here: <daniels@cs.uit.no> - * - * The official ptunnel website is here: - * <http://www.cs.uit.no/~daniels/PingTunnel/> - * - * Note that the source code is best viewed with tabs set to 4 spaces. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <fcntl.h> -#include <stdarg.h> -#include <string.h> -#include <time.h> -#ifdef HAVE_BSD_STDLIB_H -#include <bsd/stdlib.h> -#endif - -#ifndef WIN32 -#include <errno.h> -#include <syslog.h> -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/socket.h> -#include <netdb.h> -#include <netinet/in.h> -#else -#include <ws2tcpip.h> -#endif -#include <sys/time.h> - -#include "utils.h" -#include "options.h" - -void pt_log(enum log_level level, const char * fmt, ...) -{ - va_list args; - const char * header[] = {"[err]: ", "[inf]: ", "[evt]: ", "[vbs]: ", "[dbg]: ", "[xfr]: "}; -#ifndef WIN32 - int syslog_levels[] = {LOG_ERR, LOG_NOTICE, LOG_NOTICE, LOG_INFO, LOG_DEBUG, LOG_DEBUG}; -#endif /* !WIN32 */ - - if (level <= opts.log_level) { - va_start(args, fmt); -#ifndef WIN32 - if (opts.use_syslog) { - char log[255]; - int header_len; - header_len = snprintf(log, sizeof(log), "%s", header[level]); - vsnprintf(log + header_len, sizeof(log) - header_len, fmt, args); - syslog(syslog_levels[level], "%s", log); - } else -#endif /* !WIN32 */ - fprintf(opts.log_file, "%s", header[level]), vfprintf(opts.log_file, fmt, args); - va_end(args); -#ifndef WIN32 - if (opts.log_file != stdout && !opts.use_syslog) -#else - if (opts.log_file != stdout) -#endif - fflush(opts.log_file); - } -} - -double time_as_double(void) -{ - double result; - struct timeval tt; - - gettimeofday(&tt, 0); - result = (double)tt.tv_sec + ((double)tt.tv_usec / (double)10e5); - return result; -} - -int host_to_addr(const char * hostname, uint32_t * result) -{ - int ret; - struct addrinfo * addrs = NULL; - struct addrinfo hints; - struct sockaddr_in * addr; - - memset(&hints, 0, sizeof(hints)); - hints.ai_family = AF_INET; - - if ((ret = getaddrinfo(hostname, NULL, &hints, &addrs)) != 0) - return ret; - addr = (struct sockaddr_in *)addrs->ai_addr; - *result = *(uint32_t *)&addr->sin_addr; - freeaddrinfo(addrs); - - return 0; -} - -static const char hextab[] = "0123456789ABCDEF"; - -void log_sendrecv_hexstr(const char *prefix, void *buf, size_t siz) { - if (opts.log_level != kLog_sendrecv) { - return; - } - - const size_t outsiz = siz * 3; - - if (outsiz + 1 > BUFSIZ) { - pt_log(kLog_error, "Can not print hex string with size %zu: too big\n", siz); - return; - } - - char out[outsiz + 1]; - unsigned char high, low; - - size_t i, j; - for (i = 0, j = 0; j < siz && i < outsiz; i += 3, ++j) { - high = (((unsigned char *)buf)[j] & 0xF0) >> 4; - low = ((unsigned char *)buf)[j] & 0x0F; - out[i ] = hextab[high]; - out[i+1] = hextab[low]; - out[i+2] = ' '; - } - out[i] = '\0'; - - pt_log(kLog_sendrecv, "%s[HEX]: %s\n", prefix, out); -} - -int pt_random(void) -{ -#if defined(HAVE_ARC4RANDOM) || defined(__COVERITY__) - return arc4random(); -#else -#if defined(RNGDEV) && !defined(_WIN32) - static int rng_fd = -1; - ssize_t bytes_read; - int rnd_val; - if (rng_fd < 0) { - rng_fd = open(RNGDEV, O_RDONLY); - if (rng_fd < 0) { - pt_log(kLog_error, "FATAL: Could not open random device '%s': %s\n", RNGDEV, strerror(errno)); - exit(EXIT_FAILURE); - } - } - bytes_read = read(rng_fd, &rnd_val, sizeof rnd_val); - if (bytes_read != sizeof rnd_val) { - if (bytes_read < 0) - pt_log(kLog_error, "FATAL: Read from random device failed: %s\n", strerror(errno)); - else - pt_log(kLog_error, "FATAL: Read only %zd bytes (wanted %zd bytes)\n", bytes_read, sizeof rnd_val); - exit(EXIT_FAILURE); - } - return rnd_val; -#else - srand(time(0)); - return rand(); -#endif -#endif -} |