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Man Pages
explain_execlp_or_die(3) FreeBSD Library Functions Manual explain_execlp_or_die(3)

explain_execlp_or_die - execute a file and report errors

#include <libexplain/execlp.h>

void explain_execlp_or_die(, ...);
int explain_execlp_on_error(, ...);

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

The explain_execlp_on_error function is used to call the execlp(3) system call. On failure an explanation will be printed to stderr, obtained from the explain_execlp(3) function, but still returns to the caller.

The explain_execlp_or_die function only returns on success, see execlp(3) for more information. On failure, prints an explanation and exits, it does not return.

The explain_execlp_on_error function always returns the value return by the wrapped execlp(3) system call.

The explain_execlp_or_die function is intended to be used in a fashion similar to the following example:
explain_execlp_or_die();

execlp(3)
execute a file
explain_execlp(3)
explain execlp(3) errors
exit(2)
terminate the calling process

libexplain version 1.3
Copyright (C) 2009 Peter Miller

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