static char const rcsid[] = "$Id: uuencode.c,v 1.2 2006/01/23 10:35:38 nigelhorne Exp $";
#include "clamav.h"
#if HAVE_CONFIG_H
#include "clamav-config.h"
#endif
#include <strings.h>
#include <stdio.h>
#include <memory.h>
#include <sys/stat.h>
#include "others.h"
#include "mbox.h"
#include "blob.h"
#include "line.h"
#include "text.h"
#include "message.h"
#include "uuencode.h"
#include "str.h"
#define RFC2821LENGTH 1000
int
cli_uuencode(const char *dir, int desc)
{
FILE *fin;
int i;
message *m;
char buffer[RFC2821LENGTH + 1];
i = dup(desc);
if((fin = fdopen(i, "rb")) == NULL) {
cli_errmsg("Can't open descriptor %d\n", desc);
close(i);
return CL_EOPEN;
}
if(fgets(buffer, sizeof(buffer) - 1, fin) == NULL) {
fclose(fin);
return CL_CLEAN;
}
if(!isuuencodebegin(buffer)) {
fclose(fin);
cli_errmsg("Message is not in uuencoded format\n");
return CL_EFORMAT;
}
m = messageCreate();
if(m == NULL) {
fclose(fin);
return CL_EMEM;
}
cli_dbgmsg("found uuencode file\n");
if(uudecodeFile(m, buffer, dir, fin) < 0) {
messageDestroy(m);
fclose(fin);
cli_errmsg("Message is not in uuencoded format\n");
return CL_EFORMAT;
}
messageDestroy(m);
fclose(fin);
return CL_CLEAN;
}
int
uudecodeFile(message *m, const char *firstline, const char *dir, FILE *fin)
{
fileblob *fb;
char buffer[RFC2821LENGTH + 1];
char *filename = cli_strtok(firstline, 2, " ");
if(filename == NULL)
return -1;
fb = fileblobCreate();
if(fb == NULL) {
free(filename);
return -1;
}
fileblobSetFilename(fb, dir, filename);
cli_dbgmsg("uudecode %s\n", filename);
free(filename);
while(fgets(buffer, sizeof(buffer) - 1, fin) != NULL) {
unsigned char data[1024];
const unsigned char *uptr;
size_t len;
cli_chomp(buffer);
if(strcasecmp(buffer, "end") == 0)
break;
if(buffer[0] == '\0')
break;
uptr = decodeLine(m, UUENCODE, buffer, data, sizeof(data));
if(uptr == NULL)
break;
len = (size_t)(uptr - data);
if((len > 62) || (len == 0))
break;
if(fileblobAddData(fb, data, len) < 0)
break;
}
fileblobDestroy(fb);
return 1;
}