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handle NULL pointers gracefully
[rrdtool.git]
/
src
/
rrd_not_thread_safe.c
diff --git
a/src/rrd_not_thread_safe.c
b/src/rrd_not_thread_safe.c
index
17ab404
..
8cdc00e
100644
(file)
--- a/
src/rrd_not_thread_safe.c
+++ b/
src/rrd_not_thread_safe.c
@@
-13,6
+13,7
@@
#include "rrd_tool.h"
#define MAXLEN 4096
#define ERRBUFLEN 256
#include "rrd_tool.h"
#define MAXLEN 4096
#define ERRBUFLEN 256
+
static char rrd_error[MAXLEN] = "\0";
static char rrd_liberror[ERRBUFLEN] = "\0";
/* The global context is very useful in the transition period to even
static char rrd_error[MAXLEN] = "\0";
static char rrd_liberror[ERRBUFLEN] = "\0";
/* The global context is very useful in the transition period to even
@@
-30,6
+31,11
@@
struct rrd_context *rrd_get_context() {
return &global_ctx;
}
return &global_ctx;
}
+/* how ugly that is!!! - make sure strerror is what it should be. It
+ might be redefined to help in keeping other modules thread safe by
+ silently turning misplaced strerror into rrd_strerror, but here
+ this turns recursive! */
+#undef strerror
const char *rrd_strerror(int err) {
return strerror(err);
}
const char *rrd_strerror(int err) {
return strerror(err);
}