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fix for segfault in rrd_cgi: caused by freeing a invalid address when printing an...
[rrdtool.git]
/
src
/
rrd_open.c
diff --git
a/src/rrd_open.c
b/src/rrd_open.c
index
5a908da
..
d2ec549
100644
(file)
--- a/
src/rrd_open.c
+++ b/
src/rrd_open.c
@@
-174,6
+174,10
@@
rrd_file_t *rrd_open(
} else {
if (rdwr & RRD_READWRITE) {
flags |= O_RDWR;
+#ifdef HAVE_MMAP
+ rrd_simple_file->mm_flags = MAP_SHARED;
+ rrd_simple_file->mm_prot |= PROT_WRITE;
+#endif
}
if (rdwr & RRD_CREAT) {
flags |= (O_CREAT | O_TRUNC);