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#include "tool.h"
#include "cgitool.h"
char *cgi_scan(char *setting)
{
char *par, *loc, *cont;
char *buf;
char *ascii;
register int i;
par=getenv("QUERY_STRING");
if(par==NULL) return NULL;
buf=salloc(slen(par)+1);
strcpy(buf,par);
loc=strtok(buf,"&");
while (loc) {
cont=strstr(loc,setting);
if(cont==loc) {
loc=strchr(cont,'=')+1;
loc=strdup(loc);
for(i=0;i<slen(loc);i++) {
if(loc[i]=='+') loc[i]=' '; /* CGI: spaces are replaced by + */
if(loc[i]=='%') { /* special chars... %2F = / */
if(loc[i+1]!='%') {
ascii=salloc(3);
ascii[0]=loc[i+1];
ascii[1]=loc[i+2];
loc[i]=(char) strtol(ascii,NULL,16);
strcpy(loc+i+1,loc+i+3);
} else
i++;
}
}
free(buf);
if(slen(loc)==0) /* Treat empty fields as nonexistant */
return NULL;
return loc;
} else
loc=strtok(NULL,"&");
}
free(buf);
return NULL;
}
unsigned int cgi_count()
{
char *par, *loc;
char *buf;
register int count=0;
par=getenv("QUERY_STRING");
if(par==NULL) return 0;
buf=salloc(slen(par)+1);
strcpy(buf,par);
loc=strtok(buf,"&");
while (loc) {
count++;
loc=strtok(NULL,"&");
}
free(buf);
return count;
}
char *to_cgi(char *t)
{
char *cgi;
register int i;
int loc=0;
cgi=salloc(3*slen(t));
for(i=0;i<slen(t);i++) {
if((t[i]>='a' && t[i]<='z') || (t[i]>='A' && t[i]<='Z'))
cgi[loc++]=t[i];
else if(t[i]==' ')
cgi[loc++]='+';
else if(t[i]!='\r') {
sprintf(cgi+loc,"%%%2x",t[i]);
loc+=3;
}
}
cgi=(char *) realloc(cgi,slen(cgi)+1);
return cgi;
}
void html_head(char *title)
{
puts("Content-Type: text/html\n\n");
puts("<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 3.2//EN\">");
printf("<HTML><HEAD><TITLE>%s: %s</TITLE>",VERSION,title);
printf("<META NAME=Generator CONTENT=%s>",VERSION);
puts("<BODY>");
}
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