services/cap_fileargs/cap_fileargs.c

60 fileargs_get_lstat_cache(fileargs_t *fa, const char *name, struct stat *sb)
66 	assert(fa != NULL);
67 	assert(fa->fa_magic == FILEARGS_MAGIC);
70 	if (fa->fa_cache == NULL)
73 	nvl = dnvlist_get_nvlist(fa->fa_cache, name, NULL);
89 fileargs_get_fd_cache(fileargs_t *fa, const char *name)
95 	assert(fa != NULL);
96 	assert(fa->fa_magic == FILEARGS_MAGIC);
99 	if (fa->fa_cache == NULL)
102 	if ((fa->fa_fdflags & O_CREAT) != 0)
105 	nvl = dnvlist_get_nvlist(fa->fa_cache, name, NULL);
109 	tnvl = nvlist_take_nvlist(fa->fa_cache, name);
119 	if ((fa->fa_fdflags & O_CLOEXEC) != O_CLOEXEC) {
120 		if (fcntl(fd, F_SETFD, fa->fa_fdflags) == -1) {
130 fileargs_set_cache(fileargs_t *fa, nvlist_t *nvl)
133 	nvlist_destroy(fa->fa_cache);
134 	fa->fa_cache = nvl;
138 fileargs_fetch(fileargs_t *fa, const char *name, const char *cmd)
143 	assert(fa != NULL);
150 	nvl = cap_xfer_nvlist(fa->fa_chann, nvl);
199 	fileargs_t *fa;
201 	fa = malloc(sizeof(*fa));
202 	if (fa != NULL) {
203 		fa->fa_cache = NULL;
204 		fa->fa_chann = chan;
205 		fa->fa_fdflags = fdflags;
206 		fa->fa_magic = FILEARGS_MAGIC;
209 	return (fa);
252 	fileargs_t *fa;
264         fa = fileargs_cinitnv(cas, limits);
267 	return (fa);
274 	fileargs_t *fa;
284 	fa = NULL;
300 	fa = fileargs_create(chann, flags);
301 	if (fa == NULL)
304 	return (fa);
314 fileargs_open(fileargs_t *fa, const char *name)
320 	assert(fa != NULL);
321 	assert(fa->fa_magic == FILEARGS_MAGIC);
328 	if (fa->fa_chann == NULL) {
333 	fd = fileargs_get_fd_cache(fa, name);
337 	nvl = fileargs_fetch(fa, name, "open");
344 		fileargs_set_cache(fa, nvl);
353 fileargs_fopen(fileargs_t *fa, const char *name, const char *mode)
357 	if ((fd = fileargs_open(fa, name)) < 0) {
365 fileargs_lstat(fileargs_t *fa, const char *name, struct stat *sb)
372 	assert(fa != NULL);
373 	assert(fa->fa_magic == FILEARGS_MAGIC);
385 	if (fa->fa_chann == NULL) {
390 	if (fileargs_get_lstat_cache(fa, name, sb) != -1)
393 	nvl = fileargs_fetch(fa, name, "lstat");
403 		fileargs_set_cache(fa, nvl);
412 fileargs_realpath(fileargs_t *fa, const char *pathname, char *reserved_path)
417 	assert(fa != NULL);
418 	assert(fa->fa_magic == FILEARGS_MAGIC);
425 	if (fa->fa_chann == NULL) {
430 	nvl = fileargs_fetch(fa, pathname, "realpath");
447 fileargs_free(fileargs_t *fa)
450 	if (fa == NULL)
453 	assert(fa->fa_magic == FILEARGS_MAGIC);
455 	nvlist_destroy(fa->fa_cache);
456 	if (fa->fa_chann != NULL) {
457 		cap_close(fa->fa_chann);
459 	explicit_bzero(&fa->fa_magic, sizeof(fa->fa_magic));
460 	free(fa);
464 fileargs_unwrap(fileargs_t *fa, int *flags)
468 	if (fa == NULL)
471 	assert(fa->fa_magic == FILEARGS_MAGIC);
473 	chan = fa->fa_chann;
475 		*flags = fa->fa_fdflags;
478 	nvlist_destroy(fa->fa_cache);
479 	explicit_bzero(&fa->fa_magic, sizeof(fa->fa_magic));
480 	free(fa);