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authorEd Maste <emaste@FreeBSD.org>2023-09-05 16:35:31 +0000
committerEd Maste <emaste@FreeBSD.org>2023-09-07 14:36:50 +0000
commitee12faa062c04a49bf6fe4e6867bad8606e2413f (patch)
treeaae1a11d1c443b55ee218661f8c7aeaccb4773e4 /usr.bin/bsdiff/bspatch/bspatch.c
parent5f62584a9adb7887bae33af617cfa4f43017abf8 (diff)
Diffstat (limited to 'usr.bin/bsdiff/bspatch/bspatch.c')
-rw-r--r--usr.bin/bsdiff/bspatch/bspatch.c10
1 files changed, 2 insertions, 8 deletions
diff --git a/usr.bin/bsdiff/bspatch/bspatch.c b/usr.bin/bsdiff/bspatch/bspatch.c
index a596ab1837dd..d7fabddabbfe 100644
--- a/usr.bin/bsdiff/bspatch/bspatch.c
+++ b/usr.bin/bsdiff/bspatch/bspatch.c
@@ -36,6 +36,7 @@
#include <fcntl.h>
#include <libgen.h>
#include <limits.h>
+#include <stdckdint.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
@@ -64,15 +65,8 @@ add_off_t(off_t a, off_t b)
{
off_t result;
-#if __GNUC__ >= 5 || \
- (defined(__has_builtin) && __has_builtin(__builtin_add_overflow))
- if (__builtin_add_overflow(a, b, &result))
+ if (ckd_add(&result, a, b))
errx(1, "Corrupt patch");
-#else
- if ((b > 0 && a > OFF_MAX - b) || (b < 0 && a < OFF_MIN - b))
- errx(1, "Corrupt patch");
- result = a + b;
-#endif
return result;
}