[PATCH nft 1/3] src: erec: fall back to internal location if its null

[Florian Westphal <fw@xxxxxxxxx>]

This should never happen (we should pass valid locations to the error
reporting functions), but in case we screw up we will segfault during
error reporting.

cat crash
table inet filter {
}
table inet filter {
      chain test {
        counter
    }
}
"nft -f crash" Now reports:
internal:0:0-0: Error: No such file or directory

... which is both bogus and useless, but better than crashing.

Signed-off-by: Florian Westphal <fw@xxxxxxxxx>
---
 src/erec.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/erec.c b/src/erec.c
index c550a596b38c..28197924a82c 100644
--- a/src/erec.c
+++ b/src/erec.c
@@ -92,6 +92,9 @@ void erec_print(struct output_ctx *octx, const struct error_record *erec,
 	FILE *f;
 	int l;
 
+	if (!indesc)
+		indesc = &internal_indesc;
+
 	switch (indesc->type) {
 	case INDESC_BUFFER:
 	case INDESC_CLI:
-- 
2.21.0