vppinfra: export utils for non vppinfra clib users

Exports below functions for non src/vppinfra clib users:
1. clib_file_n_bytes
2. sprintf_clib_timebase_time

Type: improvement

JIRA: https://essjira.marvell.com/browse/IPBUSW-50810
Signed-off-by: Varun Rapelly <vrapelly@marvell.com>
Change-Id: Ia8356e15559290625b4ef0e22507d112abf9b900
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/toolkits/vpp/+/133076
Tested-by: sa_ip-sw-jenkins <sa_ip-sw-jenkins@marvell.com>
Reviewed-by: Venkata Ravichandra Mynidi <vmynidi@marvell.com>
Reviewed-by: Monendra Singh Kushwaha <kmonendra@marvell.com>
(cherry picked from commit 342e3cb50e02a02a6476e275ecc33c39fc4c331f)
Reviewed-on: https://sj1git1.cavium.com/c/IP/SW/toolkits/vpp/+/134725
Reviewed-by: Nithinsen Kaithakadan

src/vppinfra/time_range.c

@@ -272,6 +272,19 @@ format_clib_timebase_time (u8 * s, va_list * args)
   return (s);
 }
 
+__clib_export void
+sprintf_clib_timebase_time (u8 *s, f64 now)
+{
+  clib_timebase_component_t _c, *cp = &_c;
+
+  clib_timebase_time_to_components (now, cp);
+
+  sprintf ((char *) s, "%s, %u %s %u %u:%02u:%02u",
+	   day_names_epoch_order[cp->day_name_index], cp->day,
+	   month_short_names[cp->month], cp->year, cp->hour, cp->minute,
+	   cp->second);
+}
+
 uword
 unformat_clib_timebase_range_hms (unformat_input_t * input, va_list * args)
 {

src/vppinfra/time_range.h

@@ -68,6 +68,8 @@ unformat_function_t unformat_clib_timebase_range_hms;
 unformat_function_t unformat_clib_timebase_range_vector;
 
 format_function_t format_clib_timebase_time;
+void sprintf_clib_timebase_time (u8 *s, f64 now);
+#define CLIB_TIMEBASE_STR_MAX_SZ 60
 
 static inline f64 clib_timebase_summer_offset_fastpath
   (clib_timebase_t * tb, f64 now)

src/vppinfra/unix-misc.c

@@ -50,8 +50,8 @@
 __clib_export __thread uword __os_thread_index = 0;
 __clib_export __thread uword __os_numa_index = 0;
 
-clib_error_t *
-clib_file_n_bytes (char *file, uword * result)
+__clib_export clib_error_t *
+clib_file_n_bytes (char *file, uword *result)
 {
   struct stat s;