/*  cgi-util.h    created by Bill Kendrick  kendrick@zippy.sonoma.edu  http://zippy.sonoma.edu/kendrick/    based on "post-query.c" and "query.c" by NCSA    New Breed Software    April 6, 1996 / July 15, 1996 / September 22, 1996 / January 28, 1997*//* USAGE:      In your CGI C source, "#include" the `cgi-util.h' file:     #include "cgi-util.h"        In your makefile (or when compiling), compile "cgi-util.c" into an   Object file and link it to your CGI's sourcecode or Object:     gcc cgi-util.c -c     gcc program.o cgi-util.o -o program.cgi   ...or, compile it along with your CGI sourcecode:     gcc program.c cgi-util.c -o program.cgi   Example C source:     #include <stdio.h>     #include "cgi-util.h"          main()     {       char str[100];              cgiinit();       printf("Content-type: text/html\n\n");              printf("<h1>%s</h1>\n", entries[0]);  /* First field received * /       getentry(str, "name");       printf("For the `name' field, you typed: %s\n", str);    }*/typedef struct{  char name[128];  char val[1024];} entry;entry entries[1000];int NUM_ENTRIES;/*  Number of unique name/value entries found (by cgiinit() below).*/int VIA_SHELL;/*  1 if called via shell (not via HTTPD)  0 if called via web (HTTPD)*/void cgiinit(void);/*  Initializes CGI - receives form data (via either "post" or "get" method).*/void getentry(char * buf, char *s);/*  Searches for an entry (name) and returns its value or an empty string.    buf = address of string buffer to store value in.  s = string (name) to search for.*/int getentryasint(char *s);/*  Searches for an entry (name) and returns its value or 0.    return = value, converted from string to integer.  s = string (name) to search for.*/int getentryyesno(char *s, int def);/*  Searches for an entry (name) and returns:    0 if the value is "no" or "off"  1 if the value is "yes" or "on"  def if the value is none of those    return = determined by entry's value (yes/on=1, no/off=0, else def)  s = string (name) to search for.*/int dump_no_abort(char * filename);/*  Opens "filename" and displays it to stdout (browser).  return = -1 on error, 0 on ok.*/void dump(char * filename);/*  Opens "filename" and displays it to stdout (browser).    Displays error message to stdout and aborts on error.*/int goodemailaddress(char * addr);/*  Makes sure an email address is formatted correctly.    Returns 1 on good address, 0 on badly formatted one.*/