NAME

sopen, sclose, isapipe

SYNOPSIS

#include <text/text.h>

DESCRIPTION

These functions operate on streams opened on files or pipes.  They are part of the text library, libtext.  The link editor searches this library under the "-ltext" option.  Declarations for these functions may be obtained from the master include file <text/text.h>. 

SUMMARY

FILE ∗ sopen(char ∗name, char ∗mode);
Opens name, which is either a file or a pipe, in the given mode.  Returns a pointer to the opened stream, or zero in the event of an error.  If name begins with a vertical bar, |, it is taken to be a pipe, and popen() is used.  Otherwise it is taken to be a file, and fopen() is used.  If mode is zero, "r" is used as a default.  The stream returned by fBsopen should be closed using sclose(). 

void sclose(FILE ∗f);
Closes f, which is a stream opened with sopen(). 

int isapipe(int fd);
True if fd is a pipe, not a plain file.  Note that fd is a file descriptor as returned by open(2), not a FILE pointer. 

SEE ALSO

text(3), popen(3), fopen(3s), open(2)
 

NeXT, Inc.  —  July 7, 1989