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| author | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-09-24 09:25:40 +0000 |
|---|---|---|
| committer | ths <ths@c046a42c-6fe2-441c-8c8c-71466251a162> | 2007-09-24 09:25:40 +0000 |
| commit | f0b6243d5d7c18efbfcc7e477ffb9b8f523e2fef (patch) | |
| tree | 6d9c44d6e8362ec3c7b3d59223ef31c080fbd81f /linux-user | |
| parent | 64f0ce4c0d2c45ff69bfc09092649ee3674f6592 (diff) | |
| download | qemu-f0b6243d5d7c18efbfcc7e477ffb9b8f523e2fef.tar.gz | |
linux-user symlinkat() syscall, by Thayne Harbaugh.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3224 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/syscall.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 427c094f68..c7e5edf01e 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -149,6 +149,7 @@ type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \ #define __NR_sys_openat __NR_openat #define __NR_sys_renameat __NR_renameat #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo +#define __NR_sys_symlinkat __NR_symlinkat #define __NR_sys_syslog __NR_syslog #define __NR_sys_tgkill __NR_tgkill #define __NR_sys_tkill __NR_tkill @@ -196,6 +197,10 @@ _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) +#ifdef TARGET_NR_symlinkat +_syscall3(int,sys_symlinkat,const char *,oldpath, + int,newdirfd,const char *,newpath) +#endif _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig) @@ -3361,6 +3366,28 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, unlock_user(p, arg1, 0); } break; +#if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) + case TARGET_NR_symlinkat: + if (!arg1 || !arg3) { + ret = -EFAULT; + goto fail; + } + { + void *p2 = NULL; + p = lock_user_string(arg1); + p2 = lock_user_string(arg3); + if (!access_ok(VERIFY_READ, p, 1) + || !access_ok(VERIFY_READ, p2, 1)) + ret = -EFAULT; + else + ret = get_errno(sys_symlinkat(p, arg2, p2)); + if (p2) + unlock_user(p2, arg3, 0); + if (p) + unlock_user(p, arg1, 0); + } + break; +#endif #ifdef TARGET_NR_oldlstat case TARGET_NR_oldlstat: goto unimplemented; |