Function Returns Post: 302979346

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Top Forums Shell Programming and Scripting Function Returns Post 302979346 by akechnie on Friday 12th of August 2016 04:01:21 PM

08-12-2016

Registered User

Quote:

, you have the logical error that the "command substitution" will replace the function with its output to stdout while the (exit) code conveyed by the return command can be retrieved in the $? parameter.

Thanks so much, and just so I understand your quote above. Does this mean that the $zone value I'm returning from the function set_region will just be wiped out everytime?

Also does this look better for the if statement, I'm not sure if || means or, because I'm only looking for those numbers?

Code:

if [$zone eq 4] || [$zone eq 5] || [$zone eq 6] || [$zone eq 7] || [$zone eq 10] || [$zone eq 11] || [$zone eq 20] || [$zone eq 21] || [$zone eq 23] || [$zone eq 25]
then
                        $zonecheck=1
                else
                        echo "That's not a region\n"
                fi

---------- Post updated at 04:01 PM ---------- Previous update was at 03:31 PM ----------

Now it just hangs and throws the same error when you hit enter.

Using comments might be easier for me to explain what I'm trying to do:

#A function to call another function to get a user to enter a valid region in a variable
#Use that variable in another command
#Print out the results from the command

#A function for getting the users region and making sure it's in a valid list
#Request the user input a region and get it in a variable
#A while loop that keep going as long as the user input doesn't match a valid region
#A for loop to test the user input against the valid regions
#Matching with a valid region exit the while loop
#Not matching rerun through the while loop
#Return the zone that was found to be valid

Last edited by akechnie; 08-12-2016 at 05:09 PM..

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LEARN ABOUT OPENSOLARIS

getzoneidbylabel

getzonelabelbyid(3TSOL) 			       Trusted Extensions Library Functions				   getzonelabelbyid(3TSOL)

NAME

       getzonelabelbyid, getzonelabelbyname, getzoneidbylabel - map between zones and labels

SYNOPSIS

       cc [flags...] file... -ltsol [library...]

       #include <tsol/label.h>

       m_label_t *getzonelabelbyid(zoneid_t zoneid);

       m_label_t *getzonelabelbyname(const char *zonename);

       zoneid_t *getzoneidbylabel(const m_label_t *label);

DESCRIPTION

       The getzonelabelbyid() function returns the mandatory access control (MAC) label of zoneid.

       The getzonelabelbyname() function returns the MAC label of the zone whose name is zonename.

       The getzoneidbylabel() function returns the zone ID of the zone whose label is label.

       All of these functions require that the specified zone's state is at least ZONE_IS_READY. The zone of the calling process must dominate the
       specified zone's label, or the calling process must be in the global zone.

RETURN VALUES

       On successful completion, the getzonelabelbyid() and getzonelabelbyname() functions return a pointer to a sensitivity label that  is  allo-
       cated within these functions. To free the storage, use m_label_free(3TSOL). If the zone does not exist, NULL is returned.

       On  successful  completion,  the getzoneidbylabel() function returns the zone ID with the matching label. If there is no matching zone, the
       function returns -1.

ERRORS

       The getzonelabelbyid() and getzonelabelbyname() functions will fail if:

       ENOENT	 The specified zone does not exist.

       The getzonelabelbyid() function will fail if:

       ENOENT	 No zone corresponds to the specified label.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |Committed 		   |
       +-----------------------------+-----------------------------+
       |MT-Level		     |Safe			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       Intro(2), getzonenamebyid(3C), getzoneidbyname(3C), libtsol(3LIB), m_label_free(3TSOL), attributes(5), labels(5)

NOTES

       The functionality described on this manual page is available only if the system is configured with Trusted Extensions.

SunOS 5.11							    20 Jul 2007 					   getzonelabelbyid(3TSOL)