From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: libc-alpha@sourceware.org,
Wilco Dijkstra <Wilco.Dijkstra@arm.com>,
Yu Chien Peter Lin <peterlin@andestech.com>
Subject: [PATCH 1/2] stdlib: Fix __getrandom_nocancel type and arc4random usage (BZ #29638)
Date: Thu, 29 Sep 2022 16:27:55 -0300 [thread overview]
Message-ID: <20220929192756.3310704-1-adhemerval.zanella@linaro.org> (raw)
Using an unsigned type prevents the fallback to be used if kernel
does not support getrandom syscall.
Checked on x86_64-linux-gnu.
---
stdlib/arc4random.c | 2 +-
sysdeps/unix/sysv/linux/not-cancel.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/stdlib/arc4random.c b/stdlib/arc4random.c
index e417ef624d..960a38f295 100644
--- a/stdlib/arc4random.c
+++ b/stdlib/arc4random.c
@@ -34,7 +34,7 @@ void
__arc4random_buf (void *p, size_t n)
{
static int seen_initialized;
- size_t l;
+ ssize_t l;
int fd;
if (n == 0)
diff --git a/sysdeps/unix/sysv/linux/not-cancel.h b/sysdeps/unix/sysv/linux/not-cancel.h
index a263d294b1..cf35c8bfc9 100644
--- a/sysdeps/unix/sysv/linux/not-cancel.h
+++ b/sysdeps/unix/sysv/linux/not-cancel.h
@@ -68,7 +68,7 @@ __writev_nocancel_nostatus (int fd, const struct iovec *iov, int iovcnt)
INTERNAL_SYSCALL_CALL (writev, fd, iov, iovcnt);
}
-static inline int
+static inline ssize_t
__getrandom_nocancel (void *buf, size_t buflen, unsigned int flags)
{
return INLINE_SYSCALL_CALL (getrandom, buf, buflen, flags);
--
2.34.1
next reply other threads:[~2022-09-29 19:28 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-29 19:27 Adhemerval Zanella [this message]
2022-09-29 19:27 ` [PATCH v3 2/2] malloc: Do not clobber errno on __getrandom_nocancel (BZ #29624) Adhemerval Zanella
2022-09-30 15:09 ` Wilco Dijkstra
2022-09-30 16:29 ` Yann Droneaud
2022-09-30 16:37 ` Adhemerval Zanella Netto
2022-10-01 12:21 ` Yu-Chien Peter Lin
2022-09-29 19:39 ` [PATCH 1/2] stdlib: Fix __getrandom_nocancel type and arc4random usage (BZ #29638) H.J. Lu
2022-09-29 19:54 ` Adhemerval Zanella Netto
2022-09-29 20:01 ` Andreas Schwab
2022-09-30 15:05 ` Wilco Dijkstra
2022-10-01 12:16 ` Yu-Chien Peter Lin
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