Restore psql's SIGPIPE setting if popen() fails.

Ancient oversight in PageOutput(): if popen() fails, we'd better reset
the SIGPIPE handler before returning stdout, because ClosePager() won't.
Noticed while fixing the empty-PAGER issue.

diff --git a/src/fe_utils/print.c b/src/fe_utils/print.c
index 5c5d285be5f2095f4f84b8514d7969572c926c86..daa23d1955ae80f715057238d73ee17086915bf6 100644 (file)
--- a/src/fe_utils/print.c
+++ b/src/fe_utils/print.c
@@ -2884,6 +2884,8 @@ PageOutput(int lines, const printTableOpt *topt)
            pagerpipe = popen(pagerprog, "w");
            if (pagerpipe)
                return pagerpipe;
+           /* if popen fails, silently proceed without pager */
+           restore_sigpipe_trap();
        }
    }