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Full Discussion: How to capture C program return values in Kshell
Top Forums Shell Programming and Scripting How to capture C program return values in Kshell Post 302472256 by jclanc8 on Tuesday 16th of November 2010 04:26:18 PM
Old 11-16-2010
How to capture C program return values in Kshell
I have a K shell script (ksh) that needs to return an email address. A C program was written (prog1) to now access the email address off of an oracle table. The call to the program in the ksh is

prog1 -p parm1

Based on Parm1 the program will read an oracle table and retrieve the email address. Now I have this email address in a string variable in my program.

How do I get it back to the ksh???

1) I have seen examples where I could do returnvalue = `prog1 -p parm1` and my email address would be in returnvalue. This doesn't seem to be working because I get nothing back. In my C program I am doing a
return(returnString) at the end of my program to pass it back, and it does not seem to be working

2) I can write the email address out to a file, but I am not sure how to define a file ksh, and have the program access or write to it.

Any help and/or direction will be greatly appreciated.
Thanks.
 

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LEARN ABOUT MOJAVE

curlopt_mail_from

CURLOPT_MAIL_FROM(3)					     curl_easy_setopt options					      CURLOPT_MAIL_FROM(3)

NAME

       CURLOPT_MAIL_FROM - SMTP sender address

SYNOPSIS

       #include <curl/curl.h>

       CURLcode curl_easy_setopt(CURL *handle, CURLOPT_MAIL_FROM, char *from);

DESCRIPTION

       Pass  a	pointer to a zero terminated string as parameter. This should be used to specify the sender's email address when sending SMTP mail
       with libcurl.

       An originator email address should be specified with angled brackets (<>) around it, which if not specified will be added automatically.

       If this parameter is not specified then an empty address will be sent to the mail server which may cause the email to be rejected.

       The application does not have to keep the string around after setting this option.

DEFAULT

       blank

PROTOCOLS

       SMTP

EXAMPLE

       TODO

AVAILABILITY

       Added in 7.20.0

RETURN VALUE

       Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.

SEE ALSO

       CURLOPT_MAIL_RCPT(3), CURLOPT_MAIL_AUTH(3),

libcurl 7.54.0							 December 21, 2016					      CURLOPT_MAIL_FROM(3)
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