65 lines
2.2 KiB
Diff
65 lines
2.2 KiB
Diff
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From: Thomas Huth <thuth@redhat.com>
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Date: Mon, 23 Jul 2018 15:19:44 +0200
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Subject: [PATCH] romfs/tools: Silence more compiler warnings with GCC 8.1
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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GCC 8 complains about the following usages of strncpy, too:
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create_crc.c:86:3: warning: ‘strncpy’ specified bound 16 equals destination
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size [-Wstringop-truncation]
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strncpy(uHeader.stHeader.version, pcVersion, 16);
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^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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create_crc.c:84:3: warning: ‘strncpy’ specified bound 16 equals destination
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size [-Wstringop-truncation]
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strncpy(uHeader.stHeader.version, pcVersion, 16);
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^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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Let's work around the issue by using memcpy instead.
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Signed-off-by: Thomas Huth <thuth@redhat.com>
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Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
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(cherry picked from commit d8a9354c2a351360da438826c95cf78efcaaf1b0)
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---
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romfs/tools/create_crc.c | 19 ++++++++++++-------
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1 file changed, 12 insertions(+), 7 deletions(-)
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diff --git a/romfs/tools/create_crc.c b/romfs/tools/create_crc.c
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index 475b184..abc373b 100644
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--- a/romfs/tools/create_crc.c
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+++ b/romfs/tools/create_crc.c
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@@ -32,6 +32,11 @@ static uint64_t ui64globalHeaderSize = 0;
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/* flag to filter detect the header in buildDataStream() */
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static int iglobalHeaderFlag = 1;
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+static size_t min(size_t a, size_t b)
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+{
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+ return a < b ? a : b;
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+}
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+
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/**
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* Build the file image and store it as Data Stream of bytes
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* calculate a first CRC for the first file and
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@@ -80,13 +85,13 @@ createHeaderImage(int notime)
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};
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/* read driver info */
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- if (NULL != (pcVersion = getenv("DRIVER_NAME"))) {
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- strncpy(stHeader.version, pcVersion, 16);
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- } else if (NULL != (pcVersion = getenv("USER"))) {
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- strncpy(stHeader.version, pcVersion, 16);
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- } else if (pcVersion == NULL) {
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- strncpy(stHeader.version, "No known user!", 16);
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- }
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+ pcVersion = getenv("DRIVER_NAME");
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+ if (!pcVersion)
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+ pcVersion = getenv("USER");
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+ if (!pcVersion)
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+ pcVersion = "unknown";
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+ memcpy(stHeader.version, pcVersion,
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+ min(strlen(pcVersion), sizeof(stHeader.version)));
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if (!notime) {
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/* read time and write it into data stream */
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