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getdents for 64 bit cpus

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@212 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2003-06-05 01:52:59 +00:00
parent 4f101ad7ff
commit 4add45b4f6
1 changed files with 42 additions and 1 deletions
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43
linux-user/syscall.c
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@ -2015,7 +2015,47 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
case TARGET_NR_getdents:
#if TARGET_LONG_SIZE != 4
#error not supported
#endif
#elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8
{
struct target_dirent *target_dirp = (void *)arg2;
struct dirent *dirp;
long count = arg3;
dirp = malloc(count);
if (!dirp)
return -ENOMEM;
ret = get_errno(sys_getdents(arg1, dirp, count));
if (!is_error(ret)) {
struct dirent *de;
struct target_dirent *tde;
int len = ret;
int reclen, treclen;
int count1, tnamelen;
count1 = 0;
de = dirp;
tde = target_dirp;
while (len > 0) {
reclen = de->d_reclen;
treclen = reclen - (2 * (sizeof(long) - sizeof(target_long)));
tde->d_reclen = tswap16(treclen);
tde->d_ino = tswapl(de->d_ino);
tde->d_off = tswapl(de->d_off);
tnamelen = treclen - (2 * sizeof(target_long) + 2);
if (tnamelen > 256)
tnamelen = 256;
strncpy(tde->d_name, de->d_name, tnamelen);
de = (struct dirent *)((char *)de + reclen);
len -= reclen;
tde = (struct dirent *)((char *)tde + treclen);
count1 += treclen;
}
ret = count1;
}
free(dirp);
}
#else
{
struct dirent *dirp = (void *)arg2;
long count = arg3;
@ -2038,6 +2078,7 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
}
}
}
#endif
break;
case TARGET_NR_getdents64:
{