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linux-user renameat() syscall, by Thayne Harbaugh. 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3222 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-09-24 09:24:37 +00:00
parent 8170f56baf
commit 722183f69b
1 changed files with 27 additions and 0 deletions
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27
linux-user/syscall.c
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@ -146,6 +146,7 @@ type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \
#define __NR_sys_mkdirat __NR_mkdirat
#define __NR_sys_mknodat __NR_mknodat
#define __NR_sys_openat __NR_openat
#define __NR_sys_renameat __NR_renameat
#define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo
#define __NR_sys_syslog __NR_syslog
#define __NR_sys_tgkill __NR_tgkill
@ -185,6 +186,10 @@ _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname,
#if defined(TARGET_NR_openat) && defined(__NR_openat)
_syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode)
#endif
#if defined(TARGET_NR_renameat) && defined(__NR_renameat)
_syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath,
int,newdirfd,const char *,newpath)
#endif
_syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo)
_syscall3(int,sys_syslog,int,type,char*,bufp,int,len)
#if defined(TARGET_NR_tgkill) && defined(__NR_tgkill)
@ -2830,6 +2835,28 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
unlock_user(p, arg1, 0);
}
break;
#if defined(TARGET_NR_renameat) && defined(__NR_renameat)
case TARGET_NR_renameat:
if (!arg2 || !arg4) {
ret = -EFAULT;
goto fail;
}
{
void *p2 = NULL;
p = lock_user_string(arg2);
p2 = lock_user_string(arg4);
if (!access_ok(VERIFY_READ, p, 1)
|| !access_ok(VERIFY_READ, p2, 1))
ret = -EFAULT;
else
ret = get_errno(sys_renameat(arg1, p, arg3, p2));
if (p2)
unlock_user(p2, arg4, 0);
if (p)
unlock_user(p, arg2, 0);
}
break;
#endif
case TARGET_NR_mkdir:
p = lock_user_string(arg1);
ret = get_errno(mkdir(p, arg2));