-/*
- * Copyright (C) 2008 Andre Noll <maan@systemlinux.org>
- *
- * Licensed under the GPL v2. For licencing details see COPYING.
- */
+/* SPDX-License-Identifier: GPL-2.0 */
#include <stdlib.h>
#include <assert.h>
#include <inttypes.h>
#include <stdio.h>
#include <errno.h>
#include <time.h>
+#include <sys/time.h>
#include "gcc-compat.h"
-#include "error.h"
+#include "err.h"
#include "snap.h"
-#include "string.h"
-#include "time.h"
-#include "fd.h"
+#include "str.h"
+#include "tv.h"
+#include "file.h"
+
+/**
+ * Wrapper for isdigit.
+ * NetBSD needs this.
+ *
+ * The values should be cast to an unsigned char first, then to int.
+ * Why? Because the isdigit (as do all other is/to functions/macros)
+ * expect a number from 0 upto and including 255 as their (int) argument.
+ * Because char is signed on most systems, casting it to int immediately
+ * gives the functions an argument between -128 and 127 (inclusive),
+ * which they will use as an array index, and which will thus fail
+ * horribly for characters which have their most significant bit set.
+ */
+#define dss_isdigit(c) isdigit((int)(unsigned char)(c))
+
/**
* Return the desired number of snapshots of an interval.
if (!dash || !dash[1] || dash == dirname)
return 0;
for (i = 0; dirname[i] != '-'; i++)
- if (!isdigit(dirname[i]))
+ if (!dss_isdigit(dirname[i]))
return 0;
tmp = dss_strdup(dirname);
tmp[i] = '\0';
if (num > now)
return 0;
s->creation_time = num;
- //DSS_DEBUG_LOG("%s start time: %lli\n", dirname, (long long)s->creation_time);
s->interval = (long long) ((now - s->creation_time)
/ unit_interval / 24 / 3600);
if (!strcmp(dash + 1, "incomplete")) {
}
if (!strcmp(dash + 1, "incomplete.being_deleted")) {
s->completion_time = -1;
- s->flags = SS_BEING_DELETED; /* mot cpmplete, being deleted */
+ s->flags = SS_BEING_DELETED; /* not complete, being deleted */
goto success;
}
tmp = dash + 1;
if (!dot || !dot[1] || dot == tmp)
return 0;
for (i = 0; tmp[i] != '.'; i++)
- if (!isdigit(tmp[i]))
+ if (!dss_isdigit(tmp[i]))
return 0;
tmp = dss_strdup(dash + 1);
tmp[i] = '\0';
free(tmp);
if (ret < 0)
return 0;
- if (num > now)
+ if (num > now || num < s->creation_time)
return 0;
s->completion_time = num;
s->flags = SS_COMPLETE;
static int compare_snapshots(const void *a, const void *b)
{
- struct snapshot *s1 = *(struct snapshot **)a;
- struct snapshot *s2 = *(struct snapshot **)b;
+ struct snapshot *s1 = *(struct snapshot * const *)a;
+ struct snapshot *s2 = *(struct snapshot * const *)b;
return NUM_COMPARE(s2->creation_time, s1->creation_time);
}
-
+/* The returned snapshot list is sorted by creation time. */
void get_snapshot_list(struct snapshot_list *sl, int unit_interval,
int num_intervals)
{
- struct add_snapshot_data asd = {
- .unit_interval = unit_interval,
- .num_intervals = num_intervals,
- .sl = sl
- };
+ struct add_snapshot_data asd;
+ asd.unit_interval = unit_interval;
+ asd.num_intervals = num_intervals;
+ asd.sl = sl;
sl->now = get_current_time();
sl->num_snapshots = 0;
sl->array_size = 0;
__malloc char *incomplete_name(int64_t start)
{
- return make_message("%lli-incomplete", (long long)start);
+ return make_message("%" PRId64 "-incomplete", start);
}
__malloc char *being_deleted_name(struct snapshot *s)
{
if (s->flags & SS_COMPLETE)
- return make_message("%lli-%lli.being_deleted",
- (long long)s->creation_time,
- (long long)s->completion_time);
- return make_message("%lli-incomplete.being_deleted",
- (long long)s->creation_time);
+ return make_message("%" PRId64 "-%" PRId64 ".being_deleted",
+ s->creation_time, s->completion_time);
+ return make_message("%" PRId64 "-incomplete.being_deleted", s->creation_time);
}
int complete_name(int64_t start, int64_t end, char **result)
return -E_STRFTIME;
if (!strftime(end_str, sizeof(end_str), "%a_%b_%d_%Y_%H_%M_%S", &end_tm))
return -E_STRFTIME;
- *result = make_message("%lli-%lli.%s-%s", (long long) start, (long long) end,
+ *result = make_message("%" PRId64 "-%" PRId64 ".%s-%s", start, end,
start_str, end_str);
return 1;
}
return name;
}
+int num_complete_snapshots(struct snapshot_list *sl)
+{
+ struct snapshot *s;
+ int i, ret = 0;
+
+ FOR_EACH_SNAPSHOT(s, i, sl)
+ if (s->flags & SS_COMPLETE)
+ ret++;
+ return ret;
+}