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Add environment variable NO_BUFFERING to disable output buffering #48

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Add environment variable NO_BUFFERING to disable output buffering #48

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4 changes: 4 additions & 0 deletions fcgiwrap.8
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Original file line number Diff line number Diff line change
Expand Up @@ -71,6 +71,10 @@ FCGI_CHDIR
By default fcgiwrap changes to the directory containing the CGI script before executing it (per CGI spec).
You may override this behaviour by passing FCGI_CHDIR containing the script's expected working directory
or \- to skip the directory change completely.
.RE
NO_BUFFERING
.RS
When set (e.g., to ""), disables output buffering.

.SH EXAMPLE
The fastest way to see \fBfcgiwrap\fP do something is to launch it at the command line
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6 changes: 6 additions & 0 deletions fcgiwrap.c
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Expand Up @@ -191,6 +191,7 @@ struct fcgi_context {
int fd_stderr;
unsigned int reply_state;
pid_t cgi_pid;
int unbuffered;
};

static void fcgi_finish(struct fcgi_context *fc, const char* msg)
Expand Down Expand Up @@ -256,6 +257,10 @@ static const char * fcgi_pass_fd(struct fcgi_context *fc, int *fdp, FCGI_FILE *f
return "writing CGI reply";
}
}

if (fc->unbuffered && FCGI_fflush(ffp)) {
return "flushing CGI reply";
}
} else {
if (nread < 0) {
return "reading CGI reply";
Expand Down Expand Up @@ -590,6 +595,7 @@ static void handle_fcgi_request(void)
fc.fd_stderr = pipe_err[0];
fc.reply_state = REPLY_STATE_INIT;
fc.cgi_pid = pid;
fc.unbuffered = !!getenv("NO_BUFFERING");

fcgi_pass(&fc);
}
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