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cgiDebug(3) Programmer's Manual cgiDebug(3)

cgiEscape - HTML escape certain characters in a string

#include <cgi.h>

char *cgiEscape (char *string);

This function returns a pointer to a sanitised string. It converts <, & and > into HTML entities so that the result can be displayed without any danger of cross-site scripting in a browser. The result may be passed to free(3) after use. This routine is meant to be called before any user provided strings are returned to the browser.

cgiEscape() returns a pointer to the sanitised string or NULL in case of error.

This CGi library is written by Martin Schulze <joey@infodrom.org>. If you have additions or improvements please get in touch with him.

free(3).

6 April 2008 CGI Library