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【修复】修复symlink系统调用返回值不是预期问题

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zhuzhuzhu 2024-08-25 22:56:03 +08:00 committed by GitHub
parent 8ba75bddc3
commit c4c227e367
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2 changed files with 14 additions and 7 deletions
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4
components/dfs/dfs_v2/src/dfs_file.c
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@ -1567,6 +1567,10 @@ int dfs_file_symlink(const char *target, const char *linkpath)
rt_free(parent); rt_free(parent);
} }
} }
else
{
rt_set_errno(-EPERM);
}
if (fullpath != linkpath) if (fullpath != linkpath)
rt_free(fullpath); rt_free(fullpath);

17
components/lwp/lwp_syscall.c
View File

@ -5909,28 +5909,31 @@ sysret_t sys_link(const char *existing, const char *new)
sysret_t sys_symlink(const char *existing, const char *new) sysret_t sys_symlink(const char *existing, const char *new)
{ {
int ret = -1; int ret = -1;
int err = 0 ;
#ifdef ARCH_MM_MMU #ifdef ARCH_MM_MMU
int err;
err = lwp_user_strlen(existing); ret = lwp_user_strlen(existing);
if (err <= 0) if (ret <= 0)
{ {
return -EFAULT; return -EFAULT;
} }
err = lwp_user_strlen(new); ret = lwp_user_strlen(new);
if (err <= 0) if (ret <= 0)
{ {
return -EFAULT; return -EFAULT;
} }
#endif #endif
#ifdef RT_USING_DFS_V2 #ifdef RT_USING_DFS_V2
ret = dfs_file_symlink(existing, new); ret = dfs_file_symlink(existing, new);
if(ret < 0)
{
err = GET_ERRNO();
}
#else #else
SET_ERRNO(EFAULT); SET_ERRNO(EFAULT);
#endif #endif
return (ret < 0 ? GET_ERRNO() : ret); return (err < 0 ? err : ret);
} }
sysret_t sys_eventfd2(unsigned int count, int flags) sysret_t sys_eventfd2(unsigned int count, int flags)