mail archive of the barebox mailing list
 help / color / mirror / Atom feed
From: Ahmad Fatoum <a.fatoum@pengutronix.de>
To: barebox@lists.infradead.org
Cc: Ahmad Fatoum <a.fatoum@pengutronix.de>
Subject: [PATCH v2 04/15] vsprintf: introduce %m shorthand for "%s", strerror(errno)
Date: Fri, 30 Apr 2021 15:29:38 +0200	[thread overview]
Message-ID: <20210430132949.14617-5-a.fatoum@pengutronix.de> (raw)
In-Reply-To: <20210430132949.14617-1-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


_______________________________________________
barebox mailing list
barebox@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/barebox


  parent reply	other threads:[~2021-04-30 13:31 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-30 13:29 [PATCH v2 00/15] USB: gadget: refactor to allow easier extension Ahmad Fatoum
2021-04-30 13:29 ` [PATCH v2 01/15] show_progress: add system wide progress stage notifier Ahmad Fatoum
2021-04-30 13:29 ` [PATCH v2 02/15] common: console: add log_writefile to write log into new file Ahmad Fatoum
2021-04-30 13:29 ` [PATCH v2 03/15] string: implement strstarts along with strends Ahmad Fatoum
2021-04-30 13:29 ` Ahmad Fatoum [this message]
2021-04-30 13:29 ` [PATCH v2 05/15] param: introduce file-list parameter type Ahmad Fatoum
2021-04-30 13:29 ` [PATCH v2 06/15] common: add generic system partitions interface Ahmad Fatoum
2021-04-30 13:39   ` [PATCH] fixup! " Ahmad Fatoum
2021-04-30 13:29 ` [PATCH v2 07/15] fastboot: handle ill-named partitions gracefully Ahmad Fatoum
2021-04-30 13:29 ` [PATCH v2 08/15] usb: gadget: dfu: change status message to info log level Ahmad Fatoum
2021-04-30 13:29 ` [PATCH v2 09/15] usbgadget: autostart: fix indeterminism around usbgadget.autostart Ahmad Fatoum
2021-04-30 13:29 ` [PATCH v2 10/15] usbgadget: allow DFU and Fastboot functions to coexist Ahmad Fatoum
2021-04-30 13:29 ` [PATCH v2 11/15] fastboot/dfu: use system partitions as fall back Ahmad Fatoum
2021-04-30 17:57   ` [PATCH] fixup! " Ahmad Fatoum
2021-04-30 13:29 ` [PATCH v2 12/15] bbu: add function to directly add handlers into file_list Ahmad Fatoum
2021-04-30 13:29 ` [PATCH v2 13/15] file_list: add file_list_detect_all() Ahmad Fatoum
2021-04-30 13:29 ` [PATCH v2 14/15] common: make FILE_LIST feature unconditional Ahmad Fatoum
2021-04-30 13:29 ` [PATCH v2 15/15] fs: error out when writing on read-only file system Ahmad Fatoum

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20210430132949.14617-5-a.fatoum@pengutronix.de \
    --to=a.fatoum@pengutronix.de \
    --cc=barebox@lists.infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox