* Copyright (C) 1996-2000 Andrew Tridgell
* Copyright (C) 1996 Paul Mackerras
* Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
- * Copyright (C) 2003-2013 Wayne Davison
+ * Copyright (C) 2003-2020 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
*/
#include "rsync.h"
-#include "ifuncs.h"
#include "itypes.h"
#include "inums.h"
-extern int checksum_len;
+extern size_t max_alloc;
+
+char *do_calloc = "42";
/**
* Sleep for a specified number of milliseconds.
*
- * Always returns TRUE. (In the future it might return FALSE if
- * interrupted.)
+ * Always returns True.
**/
int msleep(int t)
{
+#ifdef HAVE_NANOSLEEP
+ struct timespec ts;
+
+ ts.tv_sec = t / 1000;
+ ts.tv_nsec = (t % 1000) * 1000000L;
+
+ while (nanosleep(&ts, &ts) < 0 && errno == EINTR) {}
+
+#elif defined HAVE_USLEEP
+ usleep(t*1000);
+
+#else
int tdiff = 0;
struct timeval tval, t1, t2;
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;
+ if (tdiff < 0)
+ t1 = t2; /* Time went backwards, so start over. */
}
+#endif
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)
+void *my_alloc(void *ptr, size_t num, size_t size, const char *file, int line)
{
- if (num >= MALLOC_MAX/size)
- return NULL;
+ if (max_alloc && num >= max_alloc/size) {
+ if (!file)
+ return NULL;
+ rprintf(FERROR, "[%s] exceeded --max-alloc=%s setting (file=%s, line=%d)\n",
+ who_am_i(), do_big_num(max_alloc, 0, NULL), src_file(file), line);
+ exit_cleanup(RERR_MALLOC);
+ }
if (!ptr)
- return malloc(size * num);
- return realloc(ptr, size * num);
+ ptr = malloc(num * size);
+ else if (ptr == do_calloc)
+ ptr = calloc(num, size);
+ else
+ ptr = realloc(ptr, num * size);
+ if (!ptr && file)
+ _out_of_memory("my_alloc caller", file, line);
+ return ptr;
}
-const char *sum_as_hex(const char *sum)
+const char *sum_as_hex(int csum_type, const char *sum, int flist_csum)
{
static char buf[MAX_DIGEST_LEN*2+1];
int i, x1, x2;
- char *c = buf + checksum_len*2;
+ int canonical = canonical_checksum(csum_type);
+ int sum_len = csum_len_for_type(csum_type, flist_csum);
+ char *c;
- assert(c - buf < (int)sizeof buf);
+ if (!canonical)
+ return NULL;
- *c = '\0';
+ assert(sum_len*2 < (int)sizeof buf);
- 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;
+ for (i = sum_len, c = buf; --i >= 0; ) {
+ int ndx = canonical < 0 ? sum_len - i - 1 : i;
+ x2 = CVAL(sum, ndx);
+ x1 = x2 >> 4;
+ x2 &= 0xF;
+ *c++ = x1 <= 9 ? x1 + '0' : x1 + 'a' - 10;
+ *c++ = x2 <= 9 ? x2 + '0' : x2 + 'a' - 10;
}
+ *c = '\0';
+
return buf;
}
-NORETURN void out_of_memory(const char *str)
+NORETURN void _out_of_memory(const char *msg, const char *file, int line)
{
- rprintf(FERROR, "ERROR: out of memory in %s [%s]\n", str, who_am_i());
+ rprintf(FERROR, "[%s] out of memory: %s (file=%s, line=%d)\n", who_am_i(), msg, src_file(file), line);
exit_cleanup(RERR_MALLOC);
}
-NORETURN void overflow_exit(const char *str)
+NORETURN void _overflow_exit(const char *msg, const char *file, int line)
{
- rprintf(FERROR, "ERROR: buffer overflow in %s [%s]\n", str, who_am_i());
+ rprintf(FERROR, "[%s] buffer overflow: %s (file=%s, line=%d)\n", who_am_i(), msg, src_file(file), line);
exit_cleanup(RERR_MALLOC);
}
+
+const char *src_file(const char *file)
+{
+ static const char *util2 = __FILE__;
+ static int prefix = -1;
+
+ if (prefix < 0) {
+ const char *cp = strrchr(util2, '/');
+ prefix = cp ? cp - util2 + 1 : 0;
+ }
+
+ if (prefix && strncmp(file, util2, prefix) == 0)
+ return file + prefix;
+ return file;
+}