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shell script executes program, but waits for a prompt

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Top Forums Shell Programming and Scripting shell script executes program, but waits for a prompt
# 8  
Old 06-19-2008
I put the code you posted into a C file and compiled it. It works for me.

Code:
vnix$ gcc lionatucla.c
vnix$ ./a.out </dev/null
Enter comment, ^D or . to end.
Comment:

vnix$ echo . | ./a.out
Enter comment, ^D or . to end.
Comment:

I did not type anything at the prompt at any point.

Does the code mess with stdin at any earlier point (like, maybe close it)?

I'm sure you are aware of the security problems of fgets() but that discussion doesn't belong here.
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LEARN ABOUT OPENSOLARIS

shcomp

shcomp(1)							   User Commands							 shcomp(1)

NAME

       shcomp - compile a ksh93 shell script

SYNOPSIS

       shcomp [-nv] [infile [outfile]]

       shcomp -D [infile [outfile]]

DESCRIPTION

       If  the	-D  option  is not specified, shcomp takes a shell script, infile, and creates a binary format file, outfile, that ksh93 reads and
       executes with the same effect as the original script.

       Aliases are processed as the script is read. Alias definitions whose value requires variable expansion will not work correctly.

OPTIONS

       The following options are supported:

       -D	       Generate a list of strings that need to be placed in a message catalog for internationalization.
       --dictionary
		       With this option, all double quoted strings that are preceded by $ are printed, one literal  per  line.	A  literal  $"foo"
		       prints  "foo" in the output. These are the messages that need to be translated to locale specific versions for internation-
		       alization.

       -n	       Display warning messages for obsolete or non-conforming constructs.
       --noexec

       -v	       Display input from infile onto standard error as it reads it.
       --verbose

OPERANDS

       The following operands are supported:

       infile	  Specifies the name of the file that contains the shell script to be used as input.

		  If infile is omitted, the shell script is read from standard input.

       outfile	  Specifies the name of the output file.

		  If outfile is omitted, both modes write their results to standard output.

EXIT STATUS

       The following exit values are returned:

       0     Successful completion.

       >0    An error occurred.

ATTRIBUTES

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

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+
       |Interface Stability	     |See below.		   |
       +-----------------------------+-----------------------------+

       The command-line interface and the system variables are Committed. The compiled shell code format is Private. The output of the	-D  option
       is Volatile.

SEE ALSO

       ksh93(1), attributes(5)

SunOS 5.11							    27 Jan 2009 							 shcomp(1)