05-18-2016
Quote:
Originally Posted by
wisecracker
As for the rest my code is designed to be as "bash" backwards compatible as is possible, and I am ignoring the 'printf' statements as errors.
Backwards compatible with what? It's already meant for bash, so I assume you mean sh... You store binary data in shell variables -- I wouldn't trust that to work in anything but brand-name BASH, and very modern BASH at that.
The problems it flags with printf are all legit, btw. What would happen if your binary data included a meaningless % character, just incidentally? printf would bomb, that's what, because % is not meaningless to printf. printf "%s" "$data" avoids that problem.
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LEARN ABOUT DEBIAN
explain_printf_or_die
explain_printf_or_die(3) Library Functions Manual explain_printf_or_die(3)
NAME
explain_printf_or_die - formatted output conversion and report errors
SYNOPSIS
#include <libexplain/printf.h>
int explain_printf_or_die(const char *format);
int explain_printf_on_error(const char *format);
DESCRIPTION
The explain_printf_or_die function is used to call the printf(3) system call. On failure an explanation will be printed to stderr, obtained
from the explain_printf(3) function, and then the process terminates by calling exit(EXIT_FAILURE).
The explain_printf_on_error function is used to call the printf(3) system call. On failure an explanation will be printed to stderr,
obtained from the explain_printf(3) function, but still returns to the caller.
format The format, exactly as to be passed to the printf(3) system call.
RETURN VALUE
The explain_printf_or_die function only returns on success, see printf(3) for more information. On failure, prints an explanation and
exits, it does not return.
The explain_printf_on_error function always returns the value return by the wrapped printf(3) system call.
EXAMPLE
The explain_printf_or_die function is intended to be used in a fashion similar to the following example:
int result = explain_printf_or_die(format);
SEE ALSO
printf(3)
formatted output conversion
explain_printf(3)
explain printf(3) errors
exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.52
Copyright (C) 2010 Peter Miller
explain_printf_or_die(3)