From: Michael Meskes <meskes@postgresql.org>
Date: Tue, 13 Mar 2018 23:47:49 +0000 (+0100)
Subject: Fix double frees in ecpg.
X-Git-Tag: REL9_3_23~45
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=09f4ca92bbe5a68b228d6a3251e4d2be31bb6377;p=postgresql

Fix double frees in ecpg.

Patch by Patrick Krecker <patrick@judicata.com>
---

diff --git a/src/interfaces/ecpg/preproc/ecpg.c b/src/interfaces/ecpg/preproc/ecpg.c
index d4907be32b..a838fc6cb7 100644
--- a/src/interfaces/ecpg/preproc/ecpg.c
+++ b/src/interfaces/ecpg/preproc/ecpg.c
@@ -323,6 +323,7 @@ main(int argc, char *const argv[])
 						fprintf(stderr, _("%s: could not open file \"%s\": %s\n"),
 								progname, output_filename, strerror(errno));
 						free(output_filename);
+						output_filename = NULL;
 						free(input_filename);
 						continue;
 					}
@@ -470,8 +471,10 @@ main(int argc, char *const argv[])
 				}
 			}
 
-			if (output_filename && out_option == 0)
+			if (output_filename && out_option == 0) {
 				free(output_filename);
+				output_filename = NULL;
+			}
 
 			free(input_filename);
 		}