From 1101d2fa0eb14baab50cc5c6cf63078930c06290 Mon Sep 17 00:00:00 2001
From: "Rafael G. Martins" <rafael@rafaelmartins.eng.br>
Date: Thu, 28 Mar 2019 20:13:01 +0100
Subject: blogc: -p should return special code when variable not found

---
 configure.ac     | 2 +-
 src/blogc/main.c | 8 +++++++-
 2 files changed, 8 insertions(+), 2 deletions(-)

diff --git a/configure.ac b/configure.ac
index ff89236..880acf4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -219,7 +219,7 @@ AM_CONDITIONAL([USE_BGR_DEPS], [test "x$have_bgr_deps" = "xyes"])
 BASH="$ac_cv_path_bash"
 AC_SUBST(BASH)
 
-AC_CHECK_HEADERS([sys/resource.h sys/stat.h sys/time.h sys/wait.h time.h unistd.h])
+AC_CHECK_HEADERS([sys/resource.h sys/stat.h sys/time.h sys/wait.h time.h unistd.h sysexits.h])
 AC_CHECK_FUNCS([gethostname])
 
 AM_CONDITIONAL([HAVE_TIME_H], [test "x$ac_cv_header_time_h" = "xyes"])
diff --git a/src/blogc/main.c b/src/blogc/main.c
index 7416994..bae3c80 100644
--- a/src/blogc/main.c
+++ b/src/blogc/main.c
@@ -14,6 +14,12 @@
 #include <sys/stat.h>
 #endif /* HAVE_SYS_STAT_H */
 
+#ifdef HAVE_SYSEXITS_H
+#include <sysexits.h>
+#else
+#define EX_CONFIG 78
+#endif /* HAVE_SYSEXITS_H */
+
 #include <errno.h>
 #include <locale.h>
 #include <stdbool.h>
@@ -301,7 +307,7 @@ main(int argc, char **argv)
         if (val == NULL) {
             fprintf(stderr, "blogc: error: variable not found: %s\n",
                 print);
-            rv = 1;
+            rv = EX_CONFIG;
         }
         else {
             printf("%s\n", val);
-- 
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