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95 lines
2 KiB
C++
95 lines
2 KiB
C++
#include "func_mknod_epall.hpp"
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#include "errno.hpp"
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#include "fs_exists.hpp"
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#include "fs_info.hpp"
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#include "fs_info_t.hpp"
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#include "fs_mknod_as.hpp"
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#include "fs_path.hpp"
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static
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inline
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void
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_calc_error(int &cur_,
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const int err_)
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{
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switch(cur_)
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{
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default:
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case ENOENT:
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cur_ = err_;
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break;
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case ENOSPC:
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if(err_ != ENOENT)
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cur_ = err_;
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break;
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case EROFS:
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if((err_ != ENOENT) && (err_ != ENOSPC))
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cur_ = err_;
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break;
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}
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}
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#define error_and_continue(CUR,ERR) \
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do { \
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::_calc_error(CUR,ERR); \
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continue; \
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} while(0)
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std::string_view
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Func2::MknodEPALL::name() const
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{
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return "epall";
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}
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int
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Func2::MknodEPALL::operator()(const ugid_t &ugid_,
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const Branches &branches_,
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const fs::path &fusepath_,
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const mode_t mode_,
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const dev_t dev_,
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const mode_t umask_)
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{
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int rv;
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int error;
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bool any;
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fs::info_t info;
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Branches::Ptr branches;
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fs::path fullpath;
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branches = branches_;
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error = ENOENT;
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any = false;
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for(auto &branch : *branches)
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{
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if(branch.ro_or_nc())
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error_and_continue(error,EROFS);
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if(!fs::exists(branch.path,fusepath_.parent_path()))
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error_and_continue(error,ENOENT);
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rv = fs::info(branch.path,&info);
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if(rv < 0)
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error_and_continue(error,ENOENT);
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if(info.readonly)
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error_and_continue(error,EROFS);
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if(info.spaceavail < branch.minfreespace())
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error_and_continue(error,ENOSPC);
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fullpath = branch.path / fusepath_;
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rv = fs::mknod_as(ugid_,fullpath,mode_,dev_,umask_);
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if(rv < 0)
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{
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::_calc_error(error,-rv);
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continue;
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}
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any = true;
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}
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if(!any)
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return -error;
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return 0;
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}
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