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posix: options: shm: use truncation flag that has been added

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Originally, when the POSIX_SHARED_MEMORY_OBJECTS option was
added, the O_TRUNC flag was not consistently available.

Now that it is consistently available, ensure it is used
within the shm_open() function.

Signed-off-by: Chris Friedt <cfriedt@tenstorrent.com>
This commit is contained in:
Chris Friedt 2025-01-19 21:03:25 -05:00 committed by Benjamin Cabé
parent d770a4c584
commit dba7598517
1 changed files with 1 additions and 1 deletions
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lib/posix/options/shm.c
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@ -305,7 +305,7 @@ int shm_open(const char *name, int oflag, mode_t mode)
bool rw = (oflag & O_RDWR) != 0; bool rw = (oflag & O_RDWR) != 0;
bool creat = (oflag & O_CREAT) != 0; bool creat = (oflag & O_CREAT) != 0;
bool excl = (oflag & O_EXCL) != 0; bool excl = (oflag & O_EXCL) != 0;
bool trunc = false; /* (oflag & O_TRUNC) != 0 */ bool trunc = (oflag & O_TRUNC) != 0;
size_t name_len = (name == NULL) ? 0 : strnlen(name, PATH_MAX); size_t name_len = (name == NULL) ? 0 : strnlen(name, PATH_MAX);
/* revisit when file-based permissions are available */ /* revisit when file-based permissions are available */