From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH 04/14] vsprintf: introduce %m shorthand for "%s", strerror(errno)
Date: Tue, 13 Apr 2021 00:34:52 +0200 [thread overview]
Message-ID: <20210412223502.29691-5-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20210412223502.29691-1-a.fatoum@pengutronix.de>
We have many places across the code base that use either do
printf("%s..", errno_str()) or printf("%s..", strerror(errno).
We already have %pe support for printing arbitrary errors and it's not
much work to add %m to print errno as well. Do so.
Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
lib/vsprintf.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 1d82adc73368..237aab0c02a1 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -373,12 +373,21 @@ static char *pointer(const char *fmt, char *buf, const char *end, const void *pt
return raw_pointer(buf, end, ptr, field_width, precision, flags);
}
+static char *errno_string(char *buf, const char *end, int field_width, int precision, int flags)
+{
+ return string(buf, end, strerror(errno), field_width, precision, flags);
+}
#else
static char *pointer(const char *fmt, char *buf, const char *end, const void *ptr,
int field_width, int precision, int flags)
{
return raw_pointer(buf, end, ptr, field_width, precision, flags);
}
+
+static char *errno_string(char *buf, const char *end, int field_width, int precision, int flags)
+{
+ return buf;
+}
#endif
/**
@@ -569,6 +578,10 @@ int vsnprintf(char *buf, size_t size, const char *fmt, va_list args)
case 'u':
break;
+ case 'm':
+ str = errno_string(str, end, field_width, precision, flags);
+ continue;
+
default:
if (str < end)
*str = '%';
--
2.29.2
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next prev parent reply other threads:[~2021-04-12 22:36 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 22:34 [PATCH 00/14] usb: gadget: refactor to allow easier extension Ahmad Fatoum
2021-04-12 22:34 ` [PATCH 01/14] show_progress: add system wide progress stage notifier Ahmad Fatoum
2021-04-15 7:29 ` Sascha Hauer
2021-04-15 7:39 ` Ahmad Fatoum
2021-04-12 22:34 ` [PATCH 02/14] common: console: add log_dprint to print to file descriptor Ahmad Fatoum
2021-04-15 7:25 ` Sascha Hauer
2021-04-15 7:43 ` Ahmad Fatoum
2021-04-12 22:34 ` [PATCH 03/14] string: implement strstarts along with strends Ahmad Fatoum
2021-04-12 22:34 ` Ahmad Fatoum [this message]
2021-04-12 22:34 ` [PATCH 05/14] param: introduce file-list parameter type Ahmad Fatoum
2021-04-12 22:34 ` [PATCH 06/14] common: add generic machine partitions interface Ahmad Fatoum
2021-04-14 10:08 ` Sascha Hauer
2021-04-14 10:20 ` Ahmad Fatoum
2021-04-12 22:34 ` [PATCH 07/14] fastboot: handle ill-named partitions gracefully Ahmad Fatoum
2021-04-12 22:34 ` [PATCH 08/14] usb: gadget: dfu: change status message to info log level Ahmad Fatoum
2021-04-12 22:34 ` [PATCH 09/14] usbgadget: autostart: fix indeterminism around usbgadget.autostart Ahmad Fatoum
2021-04-12 22:34 ` [PATCH 10/14] usbgadget: allow DFU and Fastboot functions to coexist Ahmad Fatoum
2021-04-12 22:34 ` [PATCH 11/14] fastboot/dfu: use machine partitions as fall back Ahmad Fatoum
2021-04-12 22:35 ` [PATCH 12/14] bbu: add function to directly add handlers into file_list Ahmad Fatoum
2021-04-12 22:35 ` [PATCH 13/14] file_list: add file_list_detect_all() Ahmad Fatoum
2021-04-12 22:35 ` [PATCH 14/14] common: make FILE_LIST feature unconditional Ahmad Fatoum
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