[git commit] sendmail: improve help text

Denys Vlasenko vda.linux at googlemail.com
Thu Jul 14 17:14:54 UTC 2016

commit: https://git.busybox.net/busybox/commit/?id=9de7509aa013a8634b13a29008cd58ca971c9c7c
branch: https://git.busybox.net/busybox/commit/?id=refs/heads/master

* explain which server we contact by default
* explain when auth is done
* -t is not implied! remove that from help text

Signed-off-by: Denys Vlasenko <vda.linux at googlemail.com>
 mailutils/sendmail.c | 30 ++++++++++++++----------------
 1 file changed, 14 insertions(+), 16 deletions(-)

diff --git a/mailutils/sendmail.c b/mailutils/sendmail.c
index fb4dbb3..a93be70 100644
--- a/mailutils/sendmail.c
+++ b/mailutils/sendmail.c
@@ -10,7 +10,8 @@
 //kbuild:lib-$(CONFIG_SENDMAIL) += sendmail.o mail.o
 //usage:#define sendmail_trivial_usage
-//usage:       "[OPTIONS] [RECIPIENT_EMAIL]..."
+//usage:       "[-tv] [-f SENDER] [-amLOGIN 4<user_pass.txt | -auUSER -apPASS]"
+//usage:     "\n		[-w SECS] [RECIPIENT_EMAIL]..."
 //usage:#define sendmail_full_usage "\n\n"
 //usage:       "Read email from stdin and send it\n"
 //usage:     "\nStandard options:"
@@ -18,27 +19,24 @@
 //usage:     "\n	-f SENDER	For use in MAIL FROM:<sender>. Can be empty string"
 //usage:     "\n			Default: -auUSER, or username of current UID"
 //usage:     "\n	-o OPTIONS	Various options. -oi implied, others are ignored"
-//usage:     "\n	-i		-oi synonym. implied and ignored"
+//usage:     "\n	-i		-oi synonym, implied and ignored"
 //usage:     "\n"
 //usage:     "\nBusybox specific options:"
 //usage:     "\n	-v		Verbose"
 //usage:     "\n	-w SECS		Network timeout"
-//usage:     "\n	-H 'PROG ARGS'	Run connection helper"
-//usage:     "\n			Examples:"
-//usage:     "\n			-H 'exec openssl s_client -quiet -tls1 -starttls smtp"
-//usage:     "\n				-connect smtp.gmail.com:25' <email.txt"
-//usage:     "\n				[4<username_and_passwd.txt | -auUSER -apPASS]"
-//usage:     "\n			-H 'exec openssl s_client -quiet -tls1"
-//usage:     "\n				-connect smtp.gmail.com:465' <email.txt"
-//usage:     "\n				[4<username_and_passwd.txt | -auUSER -apPASS]"
-//usage:     "\n	-S HOST[:PORT]	Server"
-//usage:     "\n	-auUSER		Username for AUTH LOGIN"
-//usage:     "\n	-apPASS 	Password for AUTH LOGIN"
-////usage:     "\n	-amMETHOD	Authentication method. Ignored. LOGIN is implied"
+//usage:     "\n	-H 'PROG ARGS'	Run connection helper. Examples:"
+//usage:     "\n		openssl s_client -quiet -tls1 -starttls smtp -connect smtp.gmail.com:25"
+//usage:     "\n		openssl s_client -quiet -tls1 -connect smtp.gmail.com:465"
+//usage:     "\n	-S HOST[:PORT]	Server (default $SMTPHOST or"
+//usage:     "\n	-amLOGIN	Log in using AUTH LOGIN (-amCRAM-MD5 not supported)"
+//usage:     "\n	-auUSER		Username for AUTH"
+//usage:     "\n	-apPASS 	Password for AUTH"
 //usage:     "\n"
-//usage:     "\nOther options are silently ignored; -oi -t is implied"
+//usage:     "\nIf no -a options are given, authentication is not done."
+//usage:     "\nIf -amLOGIN is given but no -au/-ap, user/password is read from fd #4."
+//usage:     "\nOther options are silently ignored; -oi is implied."
 //usage:	IF_MAKEMIME(
-//usage:     "\nUse makemime to create emails with attachments"
+//usage:     "\nUse makemime to create emails with attachments."
 //usage:	)
 /* Currently we don't sanitize or escape user-supplied SENDER and RECIPIENT_EMAILs.

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