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The keybox gets now compressed after 3 hours and ephemeral

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stored certificates are deleted after about a day.
This commit is contained in:
Werner Koch 2004-04-26 08:09:25 +00:00
parent cbc5ce3ea4
commit 6aaceac7fe
14 changed files with 413 additions and 57 deletions
Download patch file Download diff file Expand all files Collapse all files

50
kbx/keybox-file.c
View file

@ -23,13 +23,14 @@
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <time.h>
#include "keybox-defs.h"
/* Read a block at the current postion and return it in r_blob.
r_blob may be NULL to simply skip the current block */
int
_keybox_read_blob (KEYBOXBLOB *r_blob, FILE *fp)
_keybox_read_blob2 (KEYBOXBLOB *r_blob, FILE *fp, int *skipped_deleted)
{
char *image;
size_t imagelen = 0;
@ -37,6 +38,7 @@ _keybox_read_blob (KEYBOXBLOB *r_blob, FILE *fp)
int rc;
off_t off;
*skipped_deleted = 0;
again:
*r_blob = NULL;
off = ftello (fp);
@ -55,7 +57,7 @@ _keybox_read_blob (KEYBOXBLOB *r_blob, FILE *fp)
}
imagelen = (c1 << 24) | (c2 << 16) | (c3 << 8 ) | c4;
if (imagelen > 500000) /* sanity check */
if (imagelen > 500000) /* Sanity check. */
return gpg_error (GPG_ERR_TOO_LARGE);
if (imagelen < 5)
@ -63,9 +65,10 @@ _keybox_read_blob (KEYBOXBLOB *r_blob, FILE *fp)
if (!type)
{
/* special treatment for empty blobs. */
/* Special treatment for empty blobs. */
if (fseek (fp, imagelen-5, SEEK_CUR))
return gpg_error (gpg_err_code_from_errno (errno));
*skipped_deleted = 1;
goto again;
}
@ -87,6 +90,13 @@ _keybox_read_blob (KEYBOXBLOB *r_blob, FILE *fp)
return rc;
}
int
_keybox_read_blob (KEYBOXBLOB *r_blob, FILE *fp)
{
int dummy;
return _keybox_read_blob2 (r_blob, fp, &dummy);
}
/* Write the block to the current file position */
int
@ -100,3 +110,37 @@ _keybox_write_blob (KEYBOXBLOB blob, FILE *fp)
return gpg_error (gpg_err_code_from_errno (errno));
return 0;
}
/* Write a fresh header type blob. */
int
_keybox_write_header_blob (FILE *fp)
{
unsigned char image[32];
u32 val;
memset (image, 0, sizeof image);
/* Length of this blob. */
image[3] = 32;
image[4] = BLOBTYPE_HEADER;
image[5] = 1; /* Version */
memcpy (image+8, "KBXf", 4);
val = time (NULL);
/* created_at and last maintenance run. */
image[16] = (val >> 24);
image[16+1] = (val >> 16);
image[16+2] = (val >> 8);
image[16+3] = (val );
image[20] = (val >> 24);
image[20+1] = (val >> 16);
image[20+2] = (val >> 8);
image[20+3] = (val );
if (fwrite (image, 32, 1, fp) != 1)
return gpg_error (gpg_err_code_from_errno (errno));
return 0;
}