fix off-by-one error in checks for implementation-internal signal numbers

[oweals/musl.git] / src / misc / realpath.c

diff --git a/src/misc/realpath.c b/src/misc/realpath.c
index ef156fcf8aaf1cb808e4a3760a46df3855676ce8..183351462519b99912265da7a87a11489dd8f1b9 100644 (file)
--- a/src/misc/realpath.c
+++ b/src/misc/realpath.c
@@ -6,7 +6,7 @@
 #include <errno.h>
 #include <unistd.h>
 
-char *realpath(const char *filename, char *resolved)
+char *realpath(const char *restrict filename, char *restrict resolved)
 {
        int fd;
        ssize_t r;
@@ -19,7 +19,7 @@ char *realpath(const char *filename, char *resolved)
                return 0;
        }
 
-       fd = open(filename, O_RDONLY|O_NONBLOCK);
+       fd = open(filename, O_RDONLY|O_NONBLOCK|O_CLOEXEC);
        if (fd < 0) return 0;
        snprintf(buf, sizeof buf, "/proc/self/fd/%d", fd);