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

explain_pclose_or_die - process I/O and report errors

#include <libexplain/pclose.h>
int explain_pclose_or_die(FILE *fp);
 
int explain_pclose_success(FILE *fp);
 
void explain_pclose_success_or_die(FILE *fp);

These functions may be used to wait for program termination, and then reprt errors returned by the pclose(3) system call.

int explain_pclose_or_die(FILE *fp);
The explain_pclose_or_die function is used to call the pclose(3) system call. On failure an explanation will be printed to stderr, obtained from explain_pclose(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:
int status = explain_pclose_or_die(fp);
fp
The fp, exactly as to be passed to the pclose(3) system call.
Returns:
This function only returns on success, see pclose(3) for more information. On failure, prints an explanation and exits.

void explain_pclose_success_or_die(FILE *);
The explain_pclose_success_or_die function is used to call the pclose(3) system call. On failure, including any exit status other than EXIT_SUCCESS, an explanation will be printed to stderr, obtained from explain_pclose(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:
explain_pclose_success_or_die(fp);
fp
The fp, exactly as to be passed to the pclose(3) system call.
Returns:
This function only returns on success. On failure, prints an explanation and exits.

int explain_pclose_success(FILE *fp);
The explain_pclose_success function is used to call the pclose(3) system call. On failure, including any exit status other than EXIT_SUCCESS, an explanation will be printed to stderr, obtained from explain_pclose(3). However, the priniting of an error message does not also cause exit(2) to be called.
This function is intended to be used in a fashion similar to the following example:
int status = explain_pclose_success(command);
fp
The fp, exactly as to be passed to the pclose(3) system call.
Returns:
the value returned by the pclose(3) system call. In all cases other than EXIT_SUCCESS, an error message will also have been printed to stderr.

pclose(3)
process I/O
explain_pclose(3)
explain pclose(3) errors
exit(2)
terminate the calling process

libexplain version 1.3
 
Copyright (C) 2009 Peter Miller

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