libreboot-utils: unified error handling

i now use a singleton hook function per program:
nvmutil, mkhtemp and lottery

call this at the startup of your program:

(void) errhook(exit_cleanup);

then provide that function. make it static,
so that each program has its own version.

if you're writing a program that handles lots
of files for example, and you want to do certain
cleanup on exit (including error exit), this can
be quite useful.

Signed-off-by: Leah Rowe <leah@libreboot.org>

1 files changed, 4 insertions, 4 deletions

diff --git a/util/libreboot-utils/lib/file.c b/util/libreboot-utils/lib/file.c
index 3b3e57d8..fbb4e53f 100644
--- a/util/libreboot-utils/lib/file.c
+++ b/util/libreboot-utils/lib/file.c
@@ -73,16 +73,16 @@ void
 xopen(int *fd_ptr, const char *path, int flags, struct stat *st)
 {
 	if ((*fd_ptr = open(path, flags)) < 0)
-		err_no_cleanup(0, errno, "%s", path);
+		err_exit(errno, "%s", path);
 
 	if (fstat(*fd_ptr, st) < 0)
-		err_no_cleanup(0, errno, "%s: stat", path);
+		err_exit(errno, "%s: stat", path);
 
 	if (!S_ISREG(st->st_mode))
-		err_no_cleanup(0, errno, "%s: not a regular file", path);
+		err_exit(errno, "%s: not a regular file", path);
 
 	if (lseek_on_eintr(*fd_ptr, 0, SEEK_CUR, 1, 1) == (off_t)-1)
-		err_no_cleanup(0, errno, "%s: file not seekable", path);
+		err_exit(errno, "%s: file not seekable", path);
 }
 
 int