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write a cache tag file as an aid to backup software

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This commit is contained in:
Vincent Sanders 2014-05-30 00:19:20 +01:00
parent 95baa1113b
commit e9d53022a4
1 changed files with 39 additions and 0 deletions
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39
content/fs_backing_store.c
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@ -777,6 +777,42 @@ read_entries(struct store_state *state)
return NSERROR_OK; return NSERROR_OK;
} }
/**
* Write the cache tag file.
*
* @param state The cache state.
* @return NSERROR_OK on sucess or error code on faliure.
*/
static nserror
write_cache_tag(struct store_state *state)
{
FILE *fcachetag;
nserror ret;
char *fname = NULL;
ret = netsurf_mkpath(&fname, NULL, 2, state->path, "CACHEDIR.TAG");
if (ret != NSERROR_OK) {
return ret;
}
fcachetag = fopen(fname, "wb");
free(fname);
if (fcachetag == NULL) {
return NSERROR_NOT_FOUND;
}
fprintf(fcachetag,
"Signature: 8a477f597d28d172789f06886806bc55\n"
"# This file is a cache directory tag created by NetSurf.\n"
"# For information about cache directory tags, see:\n"
"# http://www.brynosaurus.com/cachedir/\n");
fclose(fcachetag);
return NSERROR_OK;
}
/** /**
* Write the control file for the current state. * Write the control file for the current state.
@ -960,6 +996,9 @@ initialise(const struct llcache_store_parameters *parameters)
if (ret != NSERROR_OK) { if (ret != NSERROR_OK) {
LOG(("read control failed %s", messages_get_errorcode(ret))); LOG(("read control failed %s", messages_get_errorcode(ret)));
ret = write_control(newstate); ret = write_control(newstate);
if (ret == NSERROR_OK) {
write_cache_tag(newstate);
}
} }
if (ret != NSERROR_OK) { if (ret != NSERROR_OK) {
/* that went well obviously */ /* that went well obviously */