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use %m printf specifier where appropriate

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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
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(add/remove: 0/0 grow/shrink: 0/7 up/down: 0/-95)             Total: -95 bytes

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Denys Vlasenko
2017-09-29 18:17:25 +02:00
parent f625836e60
commit 6f97b30a90
9 changed files with 25 additions and 19 deletions
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9
shell/ash.c
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@@ -1312,16 +1312,9 @@ ash_msg_and_raise_error(const char *msg, ...)
}
/*
* Use '%m' to append error string on platforms that support it, '%s' and
* strerror() on those that don't.
*
* 'fmt' must be a string literal.
*/
#ifdef HAVE_PRINTF_PERCENTM
#define ash_msg_and_raise_perror(fmt, ...) ash_msg_and_raise_error(fmt ": %m", ##__VA_ARGS__)
#else
#define ash_msg_and_raise_perror(fmt, ...) ash_msg_and_raise_error(fmt ": %s", ##__VA_ARGS__, strerror(errno))
#endif
#define ash_msg_and_raise_perror(fmt, ...) ash_msg_and_raise_error(fmt ": "STRERROR_FMT, ##__VA_ARGS__ STRERROR_ERRNO)
static void raise_error_syntax(const char *) NORETURN;
static void