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lib/path: allow to close dirfd 

Signed-off-by: Karel Zak <kzak@redhat.com>
This commit is contained in:
Karel Zak 2018-10-17 13:18:25 +02:00
parent b158bd29de
commit c9ea91d41e
2 changed files with 21 additions and 3 deletions
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2
include/path.h
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@ -40,6 +40,8 @@ void *ul_path_get_dialect(struct path_cxt *pc);
int ul_path_set_enoent_redirect(struct path_cxt *pc, int (*func)(struct path_cxt *, const char *, int *));
int ul_path_get_dirfd(struct path_cxt *pc);
void ul_path_close_dirfd(struct path_cxt *pc);
int ul_path_isopen_dirfd(struct path_cxt *pc);
char *ul_path_get_abspath(struct path_cxt *pc, char *buf, size_t bufsz, const char *path, ...)
__attribute__ ((__format__ (__printf__, 4, 5)));

22
lib/path.c
View File

@ -94,8 +94,7 @@ void ul_unref_path(struct path_cxt *pc)
DBG(CXT, ul_debugobj(pc, "dealloc"));
if (pc->dialect)
pc->free_dialect(pc);
if (pc->dir_fd >= 0)
close(pc->dir_fd);
ul_path_close_dirfd(pc);
free(pc->dir_path);
free(pc->prefix);
free(pc);
@ -212,6 +211,23 @@ int ul_path_get_dirfd(struct path_cxt *pc)
return pc->dir_fd;
}
/* Note that next ul_path_get_dirfd() will reopen the directory */
void ul_path_close_dirfd(struct path_cxt *pc)
{
assert(pc);
if (pc->dir_fd >= 0) {
DBG(CXT, ul_debugobj(pc, "closing dir: '%s'", pc->dir_path));
close(pc->dir_fd);
pc->dir_fd = -1;
}
}
int ul_path_isopen_dirfd(struct path_cxt *pc)
{
return pc && pc->dir_fd >= 0;
}
static const char *ul_path_mkpath(struct path_cxt *pc, const char *path, va_list ap)
{
int rc = vsnprintf(pc->path_buffer, sizeof(pc->path_buffer), path, ap);
@ -301,7 +317,7 @@ int ul_path_open(struct path_cxt *pc, int flags, const char *path)
if (!pc) {
fd = open(path, flags);
DBG(CXT, ul_debug("opening '%s'", path));
DBG(CXT, ul_debug("opening '%s' [no context]", path));
} else {
int fdx;
int dir = ul_path_get_dirfd(pc);