explain_execv_or_die(3) Library Functions Manual explain_execv_or_die(3)

explain_execv_or_die - execute a file and report errors

#include <libexplain/execv.h>

void explain_execv_or_die(const char *pathname, char *const*argv);
int explain_execv_on_error(const char *pathname, char *const*argv);

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

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

The pathname, exactly as to be passed to the execv(3) system call.
The argv, exactly as to be passed to the execv(3) system call.

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

The explain_execv_on_error function always returns the value return by the wrapped execv(3) system call.

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

explain_execv_or_die(pathname, argv);

execute a file
explain execv(3) errors
terminate the calling process

libexplain version 1.4
Copyright (C) 2012 Peter Miller