Adding upstream version 3.2.7.upstream/3.2.7

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 145 insertions, 0 deletions

diff --git a/util2.c b/util2.c
new file mode 100644
index 0000000..a8609a5
--- /dev/null
+++ b/util2.c
@@ -0,0 +1,145 @@
+/*
+ * 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) 2003-2020 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
+ * 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 "itypes.h"
+#include "inums.h"
+
+extern size_t max_alloc;
+
+char *do_calloc = "42";
+
+/**
+ * Sleep for a specified number of milliseconds.
+ *
+ * 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;
+
+	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);
+		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;
+}
+
+void *my_alloc(void *ptr, size_t num, size_t size, const char *file, int line)
+{
+	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)
+		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(int csum_type, const char *sum, int flist_csum)
+{
+	static char buf[MAX_DIGEST_LEN*2+1];
+	int i, x1, x2;
+	int canonical = canonical_checksum(csum_type);
+	int sum_len = csum_len_for_type(csum_type, flist_csum);
+	char *c;
+
+	if (!canonical)
+		return NULL;
+
+	assert(sum_len*2 < (int)sizeof buf);
+
+	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 *msg, const char *file, int line)
+{
+	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 *msg, const char *file, int line)
+{
+	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;
+}