util.c File Reference

Utilities commonly used. More...

#include <openssl/bio.h>
#include <openssl/buffer.h>
#include <openssl/evp.h>
#include <fcntl.h>
#include <string.h>
#include <unistd.h>
#include <openssl/rand.h>
#include <openssl/md5.h>
#include <openssl/sha.h>
#include <ctype.h>
#include <stdint.h>
#include <stdio.h>
#include <sys/time.h>
#include "include/dtsapp.h"

Go to the source code of this file.

Functions
void	seedrand (void)
	Seed openssl random number generator. More...
int	genrand (void *buf, int len)
	Generate random sequence. More...
void	sha512sum2 (unsigned char *buff, const void *data, unsigned long len, const void *data2, unsigned long len2)
	Calculate the SHA2-512 hash accross 2 data chunks. More...
void	sha512sum (unsigned char *buff, const void *data, unsigned long len)
	Calculate the SHA2-512 hash. More...
void	sha256sum2 (unsigned char *buff, const void *data, unsigned long len, const void *data2, unsigned long len2)
	Calculate the SHA2-256 hash accross 2 data chunks. More...
void	sha256sum (unsigned char *buff, const void *data, unsigned long len)
	Calculate the SHA2-256 hash. More...
void	sha1sum2 (unsigned char *buff, const void *data, unsigned long len, const void *data2, unsigned long len2)
	Calculate the SHA1 hash accross 2 data chunks. More...
void	sha1sum (unsigned char *buff, const void *data, unsigned long len)
	Calculate the SHA1 hash. More...
void	md5sum2 (unsigned char *buff, const void *data, unsigned long len, const void *data2, unsigned long len2)
	Calculate the MD5 hash accross 2 data chunks. More...
void	md5sum (unsigned char *buff, const void *data, unsigned long len)
	Calculate the MD5 hash. More...
int	md5cmp (unsigned char *digest1, unsigned char *digest2)
	Compare two md5 hashes. More...
int	sha1cmp (unsigned char *digest1, unsigned char *digest2)
	Compare two SHA1 hashes. More...
int	sha256cmp (unsigned char *digest1, unsigned char *digest2)
	Compare two SHA2-256 hashes. More...
int	sha512cmp (unsigned char *digest1, unsigned char *digest2)
	Compare two SHA2-512 hashes. More...
void	md5hmac (unsigned char *buff, const void *data, unsigned long len, const void *key, unsigned long klen)
	Hash Message Authentication Codes (HMAC) MD5. More...
void	sha1hmac (unsigned char *buff, const void *data, unsigned long len, const void *key, unsigned long klen)
	Hash Message Authentication Codes (HMAC) SHA1. More...
void	sha256hmac (unsigned char *buff, const void *data, unsigned long len, const void *key, unsigned long klen)
	Hash Message Authentication Codes (HMAC) SHA2-256. More...
void	sha512hmac (unsigned char *buff, const void *data, unsigned long len, const void *key, unsigned long klen)
	Hash Message Authentication Codes (HMAC) SHA2-512. More...
int	strlenzero (const char *str)
	Check if a string is zero length. More...
char *	ltrim (char *str)
	Trim white space at the begining of a string. More...
char *	rtrim (const char *str)
	Trim white space at the end of a string. More...
char *	trim (const char *str)
	Trim whitesapce from the beggining and end of a string. More...
uint64_t	tvtontp64 (struct timeval *tv)
	Convert a timeval struct to 64bit NTP time. More...
uint16_t	checksum (const void *data, int len)
	Obtain the checksum for a buffer. More...
uint16_t	checksum_add (const uint16_t checksum, const void *data, int len)
	Obtain the checksum for a buffer adding a checksum. More...
uint16_t	verifysum (const void *data, int len, const uint16_t check)
	Verify a checksum. More...
void	touch (const char *filename, uid_t user, gid_t group)
	Create a file and set user and group. More...
char *	b64enc_buf (const char *message, uint32_t len, int nonl)
	Base 64 encode a buffer. More...
char *	b64enc (const char *message, int nonl)
	Base 64 encode a string. More...

Detailed Description

Utilities commonly used.

Definition in file util.c.