diff options
Diffstat (limited to 'src/who.c')
-rw-r--r-- | src/who.c | 14 |
1 files changed, 12 insertions, 2 deletions
@@ -33,6 +33,7 @@ #include "readutmp.h" #include "error.h" +#include "inttostr.h" #include "vasprintf.h" /* The official name of this program (e.g., no `g' prefix). */ @@ -233,8 +234,17 @@ time_string (const STRUCT_UTMP *utmp_ent) the tv_sec member of a struct timeval value.'' */ time_t tm = UT_TIME_MEMBER (utmp_ent); - char *ptr = ctime (&tm) + 4; - ptr[12] = '\0'; + char *ptr = ctime (&tm); + if (ptr) + { + ptr += 4; + ptr[12] = '\0'; + } + else + { + static char buf[INT_BUFSIZE_BOUND (intmax_t)]; + ptr = (TYPE_SIGNED (time_t) ? imaxtostr (tm, buf) : umaxtostr (tm, buf)); + } return ptr; } |