mirror of
http://galexander.org/git/simplesshd.git
synced 2024-11-27 17:58:13 +00:00
110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
/*
|
|
* Utility routines used in rsync.
|
|
*
|
|
* Copyright (C) 1996-2000 Andrew Tridgell
|
|
* Copyright (C) 1996 Paul Mackerras
|
|
* Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
|
|
* Copyright (C) 2003-2014 Wayne Davison
|
|
*
|
|
* 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, visit the http://fsf.org website.
|
|
*/
|
|
|
|
#include "rsync.h"
|
|
#include "ifuncs.h"
|
|
#include "itypes.h"
|
|
#include "inums.h"
|
|
|
|
extern int checksum_len;
|
|
|
|
/**
|
|
* Sleep for a specified number of milliseconds.
|
|
*
|
|
* Always returns TRUE. (In the future it might return FALSE if
|
|
* interrupted.)
|
|
**/
|
|
int msleep(int t)
|
|
{
|
|
int tdiff = 0;
|
|
struct timeval tval, t1, t2;
|
|
|
|
gettimeofday(&t1, NULL);
|
|
|
|
while (tdiff < t) {
|
|
tval.tv_sec = (t-tdiff)/1000;
|
|
tval.tv_usec = 1000*((t-tdiff)%1000);
|
|
|
|
errno = 0;
|
|
select(0,NULL,NULL, NULL, &tval);
|
|
|
|
gettimeofday(&t2, NULL);
|
|
if (t2.tv_sec < t1.tv_sec)
|
|
t1 = t2; /* Time went backwards, so start over. */
|
|
tdiff = (t2.tv_sec - t1.tv_sec)*1000 +
|
|
(t2.tv_usec - t1.tv_usec)/1000;
|
|
}
|
|
|
|
return True;
|
|
}
|
|
|
|
#define MALLOC_MAX 0x40000000
|
|
|
|
void *_new_array(unsigned long num, unsigned int size, int use_calloc)
|
|
{
|
|
if (num >= MALLOC_MAX/size)
|
|
return NULL;
|
|
return use_calloc ? calloc(num, size) : malloc(num * size);
|
|
}
|
|
|
|
void *_realloc_array(void *ptr, unsigned int size, size_t num)
|
|
{
|
|
if (num >= MALLOC_MAX/size)
|
|
return NULL;
|
|
if (!ptr)
|
|
return malloc(size * num);
|
|
return realloc(ptr, size * num);
|
|
}
|
|
|
|
const char *sum_as_hex(const char *sum)
|
|
{
|
|
static char buf[MAX_DIGEST_LEN*2+1];
|
|
int i, x1, x2;
|
|
char *c = buf + checksum_len*2;
|
|
|
|
assert(c - buf < (int)sizeof buf);
|
|
|
|
*c = '\0';
|
|
|
|
for (i = checksum_len; --i >= 0; ) {
|
|
x1 = CVAL(sum, i);
|
|
x2 = x1 >> 4;
|
|
x1 &= 0xF;
|
|
*--c = x1 <= 9 ? x1 + '0' : x1 + 'a' - 10;
|
|
*--c = x2 <= 9 ? x2 + '0' : x2 + 'a' - 10;
|
|
}
|
|
|
|
return buf;
|
|
}
|
|
|
|
NORETURN void out_of_memory(const char *str)
|
|
{
|
|
rprintf(FERROR, "ERROR: out of memory in %s [%s]\n", str, who_am_i());
|
|
exit_cleanup(RERR_MALLOC);
|
|
}
|
|
|
|
NORETURN void overflow_exit(const char *str)
|
|
{
|
|
rprintf(FERROR, "ERROR: buffer overflow in %s [%s]\n", str, who_am_i());
|
|
exit_cleanup(RERR_MALLOC);
|
|
}
|