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authorDenys Vlasenko2017-09-29 18:17:25 +0200
committerDenys Vlasenko2017-09-29 18:17:25 +0200
commit6f97b30a904407c1f1701d937d9258ca9175c6ab (patch)
tree093a86cb555fb3e7f365cea21095a7df8d5dce77 /include
parentf625836e6059d307e951a60b60f1c9ed259ee983 (diff)
downloadbusybox-6f97b30a904407c1f1701d937d9258ca9175c6ab.zip
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use %m printf specifier where appropriate
function old new delta out 85 75 -10 udhcpd_main 1472 1461 -11 open_stdio_to_tty 98 85 -13 init_exec 245 232 -13 udhcpc_main 2763 2749 -14 do_cmd 4771 4755 -16 status_line_bold_errno 32 14 -18 ------------------------------------------------------------------------------ (add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-95) Total: -95 bytes Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'include')
-rw-r--r--include/libbb.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/libbb.h b/include/libbb.h
index aff2825..daccf15 100644
--- a/include/libbb.h
+++ b/include/libbb.h
@@ -162,6 +162,17 @@
#ifndef HAVE_XTABS
# define XTABS TAB3
#endif
+/*
+ * Use '%m' to append error string on platforms that support it,
+ * '%s' and strerror() on those that don't.
+ */
+#ifdef HAVE_PRINTF_PERCENTM
+# define STRERROR_FMT "%m"
+# define STRERROR_ERRNO /*nothing*/
+#else
+# define STRERROR_FMT "%s"
+# define STRERROR_ERRNO ,strerror(errno)
+#endif
/* Some libc's forget to declare these, do it ourself */