From 6246f8ebcdf9d0356285e5089fa15b554e376155 Mon Sep 17 00:00:00 2001
From: Laurence Withers <lwithers@rhodium.lan>
Date: Mon, 7 Jan 2008 13:16:18 +0000
Subject: [PATCH] Fix missing null termination when tz_sec = 0, add test for it

---
 src/libiso8601/200_print.c | 1 +
 src/tests/printer.c        | 6 +++++-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/src/libiso8601/200_print.c b/src/libiso8601/200_print.c
index 9998e2e..759bc49 100644
--- a/src/libiso8601/200_print.c
+++ b/src/libiso8601/200_print.c
@@ -155,6 +155,7 @@ char* iso8601_print(char* str, int amt, const struct iso8601_date* date,
         else snprintf(str, amt, "%02d", y);
     } else {
         *str++ = 'Z';
+        *str++ = 0;
     }
     
     return str_orig;
diff --git a/src/tests/printer.c b/src/tests/printer.c
index 1b7a7b6..f4f403b 100644
--- a/src/tests/printer.c
+++ b/src/tests/printer.c
@@ -204,7 +204,7 @@ int main(int argc, char* argv[])
     int ret = 0;
     struct iso8601_date dt;
     struct iso8601_details details, details2;
-    char buf[100], buf2[100];
+    char buf[40], buf2[40];
     const struct test* test;
 
     if(argc == 2 && !strcmp(argv[1], "--print-summary")) {
@@ -215,7 +215,11 @@ int main(int argc, char* argv[])
     iso8601_now(&dt, &details);
     printf("%-30s  %-30s  %s\n", "Name", "Basic format", "Extended format");
     for(test = tests; test->desc; ++test) {
+        memset(buf, 'X', sizeof(buf));
+        memset(buf2, 'X', sizeof(buf2)); /* test null-termination */
+
         test->do_details(&details2, &details);
+
         iso8601_print(buf, sizeof(buf), &dt, &details2);
         ++details2.extended;
         iso8601_print(buf2, sizeof(buf2), &dt, &details2);