scip/pcp
1
0
Fork 0
mirror of https://codeberg.org/scip/pcp.git synced 2025-12-17 03:50:57 +01:00
Code Issues Packages Projects Releases Wiki Activity

added a generic _dump() function and put functions into its own C file...

Browse Source
This commit is contained in:
git@daemon.de
2014-02-05 13:08:34 +01:00
parent 192856446b
commit 5707ecbf9c
2 changed files with 75 additions and 36 deletions
Download Patch File Download Diff File Expand all files Collapse all files

43
include/pcp/util.h
View File

@@ -27,42 +27,13 @@
#include <ctype.h> #include <ctype.h>
#include <wctype.h> #include <wctype.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
// lowercase a string char *_lc(char *in);
static inline char *_lc(char *in) { size_t _findoffset(unsigned char *bin, size_t binlen, char *sigstart, size_t hlen);
size_t len = strlen(in); void _xorbuf(unsigned char *iv, unsigned char *buf, size_t xlen);
size_t i; void _dump(char *n, unsigned char *d, size_t s);
for(i=0; i<len; ++i)
in[i] = towlower(in[i]);
return in;
}
// find the offset of the beginning of a certain string within binary data
static inline size_t _findoffset(unsigned char *bin, size_t binlen, char *sigstart, size_t hlen) {
size_t i;
size_t offset = 0;
int m = 0;
for(i=0; i<binlen-hlen; ++i) {
if(memcmp(&bin[i], sigstart, hlen) == 0) {
offset = i;
m = 1;
break;
}
}
if(m == 0)
offset = -1;
return offset;
}
static inline void _xorbuf(unsigned char *iv, unsigned char *buf, size_t xlen) {
size_t i;
for (i = 0; i < xlen; ++i)
buf[i] = iv[i] ^ buf[i];
}
#endif // _HAVE_PCP_UTIL_H #endif // _HAVE_PCP_UTIL_H

68
libpcp/util.c Normal file
View File

@@ -0,0 +1,68 @@
/*
This file is part of Pretty Curved Privacy (pcp1).
Copyright (C) 2013 T. von Dein.
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 3 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, see <http://www.gnu.org/licenses/>.
You can contact me by mail: <tlinden AT cpan DOT org>.
*/
#include "util.h"
/* lowercase a string */
char *_lc(char *in) {
size_t len = strlen(in);
size_t i;
for(i=0; i<len; ++i)
in[i] = towlower(in[i]);
return in;
}
/* find the offset of the beginning of a certain string within binary data */
size_t _findoffset(unsigned char *bin, size_t binlen, char *sigstart, size_t hlen) {
size_t i;
size_t offset = 0;
int m = 0;
for(i=0; i<binlen-hlen; ++i) {
if(memcmp(&bin[i], sigstart, hlen) == 0) {
offset = i;
m = 1;
break;
}
}
if(m == 0)
offset = -1;
return offset;
}
/* xor 2 likesized buffers */
void _xorbuf(unsigned char *iv, unsigned char *buf, size_t xlen) {
size_t i;
for (i = 0; i < xlen; ++i)
buf[i] = iv[i] ^ buf[i];
}
/* print some binary data to stderr */
void _dump(char *n, unsigned char *d, size_t s) {
fprintf(stderr, "%s (%ld): ", n, s);
size_t i;
for (i=0; i<s; ++i)
fprintf(stderr, "%02x", d[i]);
fprintf(stderr, "\n");
}