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linux-user: Always use flexible arrays for dirent d_name

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We currently use a flexible array member for target_dirent,
but use incorrectly fixed length arrays for target_dirent64,
linux_dirent and linux_dirent64.

This requires that we adjust the definition of the VFAT READDIR
ioctls which hard-code the 256 namelen size into the ioctl constant.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20211114103539.298686-3-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Richard Henderson 2021-11-14 11:35:37 +01:00 • committed by Laurent Vivier
parent fd08ddb9cb
commit 540a736f54
2 changed files with 7 additions and 5 deletions
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6
linux-user/syscall_defs.h
View file

@ -441,7 +441,7 @@ struct target_dirent64 {
int64_t d_off;
unsigned short d_reclen;
unsigned char d_type;
char d_name[256];
char d_name[];
};
@ -2714,7 +2714,7 @@ struct linux_dirent {
long d_ino;
unsigned long d_off;
unsigned short d_reclen;
char d_name[256]; /* We must not include limits.h! */
char d_name[];
};
struct linux_dirent64 {
@ -2722,7 +2722,7 @@ struct linux_dirent64 {
int64_t d_off;
unsigned short d_reclen;
unsigned char d_type;
char d_name[256];
char d_name[];
};
struct target_mq_attr {