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net/local: fix build warning on GCC 12.2.0

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In file included from local/local_fifo.c:25:
In function ‘local_format_name’,
    inlined from ‘local_hd_name’ at local/local_fifo.c:132:3,
    inlined from ‘local_open_receiver’ at local/local_fifo.c:661:3:
local/local_fifo.c:77:16: warning: ‘%s’ directive output may be truncated writing up to 107 bytes into a region of size 100 [-Wformat-truncation=]
   77 |                CONFIG_NET_LOCAL_VFS_PATH "/%s%s", inpath, suffix);
      |                ^~~~~~~~~~~~~~~~~~~~~~~~~
local/local_fifo.c: In function ‘local_open_receiver’:
local/local_fifo.c:82:44: note: format string is defined here
   82 |                CONFIG_NET_LOCAL_VFS_PATH "/%s%s%" PRIx32,
      |                                            ^~
In function ‘local_format_name’,
    inlined from ‘local_hd_name’ at local/local_fifo.c:132:3,
    inlined from ‘local_open_receiver’ at local/local_fifo.c:661:3:
local/local_fifo.c:76:7: note: ‘snprintf’ output between 12 and 119 bytes into a destination of size 109
   76 |       snprintf(outpath, LOCAL_FULLPATH_LEN - 1,
      |       ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   77 |                CONFIG_NET_LOCAL_VFS_PATH "/%s%s", inpath, suffix);
      |                ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: chao an <anchao@xiaomi.com>
This commit is contained in:
chao an
2023-07-06 10:35:32 +08:00
committed by Xiang Xiao
parent 4eb6da33c2
commit 6a4495e3b7
1 changed files with 4 additions and 2 deletions
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net/local/local_fifo.c
+4 -2
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@@ -49,7 +49,8 @@
#define LOCAL_HD_SUFFIX "HD" /* Name of the half duplex datagram FIFO */
#define LOCAL_SUFFIX_LEN 2
#define LOCAL_FULLPATH_LEN (UNIX_PATH_MAX + LOCAL_SUFFIX_LEN)
#define LOCAL_FULLPATH_LEN (strlen(CONFIG_NET_LOCAL_VFS_PATH) + \
UNIX_PATH_MAX + LOCAL_SUFFIX_LEN + 2)
/****************************************************************************
* Private Functions
@@ -66,7 +67,8 @@
static void local_format_name(FAR const char *inpath, FAR char *outpath,
FAR const char *suffix, int32_t id)
{
if (strcmp(inpath, CONFIG_NET_LOCAL_VFS_PATH) == 0)
if (strncmp(inpath, CONFIG_NET_LOCAL_VFS_PATH,
strlen(CONFIG_NET_LOCAL_VFS_PATH)) == 0)
{
inpath += strlen(CONFIG_NET_LOCAL_VFS_PATH);
}