explain_popen_or

explain_popen_or_die

Section: C Library Functions (3) Local index Up

NAME

explain_popen_or_die - process I/O and report errors

SYNOPSIS

FILE *explain_popen_or_die(const char *command, const char *flags);

DESCRIPTION

The explain_popen_or_die function is used to call the popen(3) system call. On failure an explanation will be printed to stderr, obtained from explain_popen(3), and then the process terminates by calling exit(EXIT_FAILURE).

This function is intended to be used in a fashion similar to the following example:

FILE *fp = explain_popen_or_die(command, flags);

command: The command, exactly as to be passed to the popen(3) system call.
flags: The flags, exactly as to be passed to the popen(3) system call.
Returns:: This function only returns on success, see popen(3) for more information. On failure, prints an explanation and exits.

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