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From: Andrey Smirnov <andrew.smirnov@gmail.com>
To: barebox@lists.infradead.org
Cc: Andrey Smirnov <andrew.smirnov@gmail.com>
Subject: [PATCH 09/17] uimage: Fix lseek error check in uimage_verify()
Date: Wed,  6 Mar 2019 23:49:18 -0800	[thread overview]
Message-ID: <20190307074926.20539-10-andrew.smirnov@gmail.com> (raw)
In-Reply-To: <20190307074926.20539-1-andrew.smirnov@gmail.com>

Don't use 'int' to store lseek()'s return value to avoid problems with
large seek offsets. While at it, make sure to populate return error
code from 'errno'.

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
---
 common/uimage.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/common/uimage.c b/common/uimage.c
index 3273bc187..72b668e89 100644
--- a/common/uimage.c
+++ b/common/uimage.c
@@ -265,11 +265,12 @@ int uimage_verify(struct uimage_handle *handle)
 {
 	u32 crc = 0;
 	int len, ret;
+	loff_t off;
 	void *buf;
 
-	ret = lseek(handle->fd, sizeof(struct image_header), SEEK_SET);
-	if (ret < 0)
-		return ret;
+	off = sizeof(struct image_header);
+	if (lseek(handle->fd, off, SEEK_SET) != off)
+		return -errno;
 
 	buf = xmalloc(PAGE_SIZE);
 
-- 
2.20.1


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  parent reply	other threads:[~2019-03-07  7:49 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-03-07  7:49 [PATCH 00/17] lseek related fixes Andrey Smirnov
2019-03-07  7:49 ` [PATCH 01/17] libfile: Make failure path of open_and_lseek() consistent Andrey Smirnov
2019-03-07  7:49 ` [PATCH 02/17] common: Always return enum filetype in file_name_detect_type_offset() Andrey Smirnov
2019-03-07  7:49 ` [PATCH 03/17] MIPS: ath79: Use errno to get error code from open_and_lseek() Andrey Smirnov
2019-03-07  7:49 ` [PATCH 04/17] ARM: i.MX: bbu: Fix variable type in imx_bbu_external_nand_update() Andrey Smirnov
2019-03-07  7:49 ` [PATCH 05/17] ARM: i.MX: bbu: Fix lseek error check " Andrey Smirnov
2019-03-07  7:49 ` [PATCH 06/17] ARM: i.MX: bbu: Fix lseek error check in imx_bbu_internal_v2_write_nand_dbbt() Andrey Smirnov
2019-03-07  7:49 ` [PATCH 07/17] ARM: i.MX: bbu: Fix variable type " Andrey Smirnov
2019-03-07  7:49 ` [PATCH 08/17] bpkfs: Fix lseek error check in bpkfs_probe() Andrey Smirnov
2019-03-07  7:49 ` Andrey Smirnov [this message]
2019-03-07  7:49 ` [PATCH 10/17] uimage: Fix lseek error check in uimage_load() Andrey Smirnov
2019-03-07  7:49 ` [PATCH 11/17] uimage: Fix lseek error check in uimage_load_to_buf() Andrey Smirnov
2019-03-07  7:49 ` [PATCH 12/17] state: Fix lseek error check in state_backend_bucket_direct_read() Andrey Smirnov
2019-03-07  7:49 ` [PATCH 13/17] state: Fix lseek error check in state_backend_bucket_direct_write() Andrey Smirnov
2019-03-07  7:49 ` [PATCH 14/17] state: Fix lseek error check in state_mtd_peb_read() Andrey Smirnov
2019-03-07  7:49 ` [PATCH 15/17] state: Fix lseek error check in state_mtd_peb_write() Andrey Smirnov
2019-03-07  7:49 ` [PATCH 16/17] commands: loadxy: Make use of open_and_lseek() Andrey Smirnov
2019-03-07  7:49 ` [PATCH 17/17] commands: loadb: " Andrey Smirnov
2019-03-11  6:56 ` [PATCH 00/17] lseek related fixes Sascha Hauer

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