Cgic implementation of the input file name, the ability to open files

A.C file

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include "cgic.h"

void Handlesubmit ();//Submit
void Address ();//Multiline text
void ShowForm ();//Display of the page
void replaceconf ();
void Show (char *file);

/*{{{*/

#define Trans_buffer_len 0x100000
Char Gbuffer1[trans_buffer_len];
Char Gbuffer2[trans_buffer_len];
char* Gbuffersource = GBuffer1;
char* gbufferdest = GBuffer2;

int firsttime = 1;
Special character substitution for HTML files
void Replacestring (char* substrbefore, char* substrafter)
{
int Offsettrans = 0;
int offsetdest = 0;
char* srcptr = Gbuffersource;
char* dstptr = gbufferdest;
char* pstrpad = srcptr;
char* pstrpadold = srcptr;
int totallength = strlen (srcptr);

memset (dstptr, 0, sizeof (DSTPTR));

while ((Pstrpad = Strstr (Pstrpad, substrbefore)) = NULL) {
memcpy (Dstptr+offsetdest, Srcptr+offsettrans, (Pstrpad-pstrpadold));
Offsetdest + = Pstrpad-pstrpadold;
Offsettrans = pstrpad-srcptr + strlen (substrbefore);

memcpy (Dstptr+offsetdest, Substrafter, strlen (Substrafter));
Offsetdest + = strlen (Substrafter);

Pstrpad + = strlen (Substrbefore);
Pstrpadold = Pstrpad;
}

memcpy (Dstptr+offsetdest, Srcptr+offsettrans, Totallength-offsettrans);

Gbuffersource = dstptr;
Gbufferdest = srcptr;
}

//will malloc outputbuffer
//for files less than 1MB
char* getfilecontent (const char* filename)
{
int MaxLen = 0x100000;
int lengthread = 0;
char* tmpbuffer = NULL;
char* outputbuffer = NULL;
file* FD;

if (fd=fopen (filename, "r+")!=null)
{
Tmpbuffer = (char*) malloc (sizeof (char) * maxlen);
Lengthread = Fread (Tmpbuffer, 1, MaxLen, FD);
OutputBuffer = StrDup (Tmpbuffer);
Free (tmpbuffer);
return outputbuffer;
}
Else
{
return NULL;
}
}
//File Error logger
void Wlog (const char* FMT, ...)
{
file* pfilelog = NULL;
if (firsttime)
Pfilelog = fopen ("Cgi-debug.log", "wt");
else
Pfilelog = fopen ("Cgi-debug.log", "at");

Firsttime = 0;

if (NULL = = Pfilelog)
return;

Va_list args;
Va_start (args, FMT);
vfprintf (Pfilelog, FMT, args);
Va_end (args);

Fclose (pfilelog);
}

Int Cgimain ()
{
file* fa;
Char sztemp[255]={};
Char filename_ntsm[80]= ": /var/ntpconf.html ";

Cgiheadercontenttype ("text/html");
if (cgiformsubmitclicked ("apply") = = cgiformsuccess)
{
Handlesubmit ();

}

Show (sztemp);

return 0;
}
Void Show (char *file)
{
file* fa;
Char sztemp[255];
Char filename_ntsm[80]= ": /var/ntpconf.html ";

int lengthread = 0;
if (Fa=fopen (FILENAME_NTSM, "r+")) = NULL)
{
memset (gbuffersource, 0, Trans_buffer_len);
Lengthread = Fread (Gbuffersource, 1, Trans_buffer_len, FA);
Replacestring ("[Email protected]@${action}", cgiscriptname);//Replace action action for Cgic

replacestring ("[ email protected]@${ntp.conf} ", file);

printf ("%s", Gbuffersource);
}
}
void replaceconf ()
{
file* file_fa;
Char Buff[trans_buffer_len];
Char filename[80]= "/etc/ntp.conf";
if (file_fa=fopen (filename, "r+") ==null)
{
fprintf (cgiout, "filename is wrong");
}
Fread (Buff, 1, Trans_buffer_len, FILE_FA);
Replacestring ("[email protected]@${ntp.conf}", buff);
}
Void Handlesubmit ()//Submit
{
Address ();
}

Address void ()
{
Char filename[2048];
Char command[80];
Char Buff[trans_buffer_len];
memset (buff,trans_buffer_len,0);

Cgiformstringnonewlines ("file_name", FileName, 81);
Cgihtmlescape (filename);//output to page file name

FILE * File_fa =fopen (FileName, "R");
if (file_fa==null)//ntp.txt file Error alert
Cgihtmlescape ("Open Ntp.txt is Wrrong");

Fread (Buff, 1, Trans_buffer_len, FILE_FA);

Show (buff);

Fclose (FILE_FA);
}

Content in global.html

<!--2.0:multipart/form-data is required for file uploads. -
<form method= "POST" enctype= "Multipart/form-data" action= "[Email protected]@${action}" >
<p>ntpq-p </p>
<textarea cols= "rows=" 5 ">[email protected]@${ntpq_out}</textarea>
<p>ntpdate-d 192.168.5.21 </p>
<textarea cols= "rows=" >[email protected]@${ntpdate_out}</textarea>
<p> current monitoring IP and restricted network segments </p>
<textarea cols= "rows=" 3 ">[email protected]@${monitip}</textarea>
<p> clear routing for current settings </p>
<textarea cols= "rows=" 3 ">[email protected]@${monitip}</textarea>
</form>
</body>

Cgic implementation of the input file name, the ability to open files