EFOPEN

Section: Standard I/O Functions (3S)
Updated: 11 May 1986
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NAME

efopen - open a stream, exiting with message in case of failure

SYNOPSIS

#include <stdio.h>
extern char *progname;

FILE *efopen(filename, type)
char *filename, *type;

DESCRIPTION

Efopen calls fopen(3S) to open the file named by filename, and if successful returns a pointer to be used to identify the stream in subsequent operations.

If filename is the string - efopen will return stdin.

Type is a character string as in fopen(3S).

On failure, efopen exits, after printing out the name of the program (if a value has been given to progname by main), the name of the file, and calling perror(3).

AUTHOR

Modified by Mohamed el Lozy from program given in The UNIX Programming Environment by Brian W. Kernighan and Rob Pike, p 182.