If you try to use cal on a terminal which doesnt support highlighting, Senter and Sexit will be set to NULL instead of "" which will cause the resulting output to be off:
$ env TERM=dumb cal
December 2005
Su Mo Tu We Th Fr Sa
1 2 3
4 5 6 7 8 9 10
111 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
---
misc-utils/cal.c | 6 ++++--
1 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/misc-utils/cal.c b/misc-utils/cal.c
index b0cca1d..b7f7c31 100644
--- a/misc-utils/cal.c
+++ b/misc-utils/cal.c
@@ -89,7 +89,8 @@ my_putstring(char *s) {
static char *
my_tgetstr(char *s, char *ss) {
- return tigetstr(ss);
+ char *ret = tigetstr(ss);
+ return (ret == NULL ? "" : ret);
}
#elif defined(HAVE_LIBTERMCAP)
@@ -112,7 +113,8 @@ my_putstring(char *s) {
static char *
my_tgetstr(char *s, char *ss) {
- return tgetstr(s, &strbuf);
+ char *ret = tgetstr(s, &strbuf);
+ return (ret == NULL ? "" : ret);
}
#endif
--
1.5.1
-
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