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-rw-r--r--src/util/fshut.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/src/util/fshut.h b/src/util/fshut.h
new file mode 100644
index 0000000..4c91179
--- /dev/null
+++ b/src/util/fshut.h
@@ -0,0 +1,36 @@
+/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
+
+#define efshut(...) enfshut(1, __VA_ARGS__)
+
+static inline int
+fshut(FILE *fp, const char *fname)
+{
+ int ret = 0;
+
+ /* fflush() is undefined for input streams by ISO C,
+ * but not POSIX 2008 if you ignore ISO C overrides.
+ * Leave it unchecked and rely on the following
+ * functions to detect errors.
+ */
+ fflush(fp);
+
+ if (ferror(fp) && !ret) {
+ weprintf("ferror %s:", fname);
+ ret = 1;
+ }
+
+ if (fclose(fp) && !ret) {
+ weprintf("fclose %s:", fname);
+ ret = 1;
+ }
+
+ return ret;
+}
+
+static inline void
+enfshut(int status, FILE *fp, const char *fname)
+{
+ if (fshut(fp, fname))
+ exit(status);
+}