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Top Forums Shell Programming and Scripting Custom exit message according to flag Post 303045142 by da1 on Thursday 12th of March 2020 02:17:13 PM
Old 03-12-2020
hmm, very interesting construct. thank you for that.

One question though regarding the following piece of code:
[[ 0 = $ret ]] && \
	exit_msg="SUCCESS - $exit_msg" || \
	exit_msg="FAILURE - $exit_msg"

Why not do a proper if/else statement here?

First and foremost, both "${2:-}" are useless, as that would fill an empty variable with... emptyness.
I did that because of the "set -u". What would be the right approach?

Second, you dont want something in a variable that defines an extra option - if it hasnt been set by the user.
Ok, can you elabortate on that? Why is it wrong (?) to append a string to a variable?
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CURLOPT_PROXY_SSL_VERIFYHOST(3) 			     curl_easy_setopt options				   CURLOPT_PROXY_SSL_VERIFYHOST(3)

CURLOPT_PROXY_SSL_VERIFYHOST - verify the proxy certificate's name against host SYNOPSIS
#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_SSL_VERIFYHOST, long verify); DESCRIPTION
Pass a long set to 2L as asking curl to verify in the HTTPS proxy's certificate name fields against the proxy name. This option determines whether libcurl verifies that the proxy cert contains the correct name for the name it is known as. When CURLOPT_PROXY_SSL_VERIFYHOST(3) is 2, the proxy certificate must indicate that the server is the proxy to which you meant to connect to, or the connection fails. Curl considers the proxy the intended one when the Common Name field or a Subject Alternate Name field in the certificate matches the host name in the proxy string which you told curl to use. When the verify value is 1L, curl_easy_setopt will return an error and the option value will not be changed due to old legacy reasons. When the verify value is 0L, the connection succeeds regardless of the names used in the certificate. Use that ability with caution! See also CURLOPT_PROXY_SSL_VERIFYPEER(3) to verify the digital signature of the proxy certificate. If libcurl is built against NSS and CURLOPT_PROXY_SSL_VERIFYPEER(3) is zero, CURLOPT_PROXY_SSL_VERIFYHOST(3) is also set to zero and cannot be overridden. DEFAULT
All protocols when used over a HTTPS proxy. EXAMPLE
CURL *curl = curl_easy_init(); if(curl) { curl_easy_setopt(curl, CURLOPT_URL, ""); /* Set the default value: strict name check please */ curl_easy_setopt(curl, CURLOPT_PROXY_SSL_VERIFYHOST, 2L); curl_easy_perform(curl); } AVAILABILITY
Added in 7.52.0. If built TLS enabled. RETURN VALUE
Returns CURLE_OK if TLS is supported, and CURLE_UNKNOWN_OPTION if not. If 1 is set as argument, CURLE_BAD_FUNCTION_ARGUMENT is returned. SEE ALSO

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