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56 lines
1.4 KiB
C++
56 lines
1.4 KiB
C++
#pragma once
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#include <stdint.h>
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#include <string>
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#include <memory>
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#include <map>
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#include <string_view>
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struct cpio_newc_header;
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struct cpio_entry {
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uint32_t mode;
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uint32_t uid;
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uint32_t gid;
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uint32_t filesize;
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void *data;
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explicit cpio_entry(uint32_t mode = 0);
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explicit cpio_entry(const cpio_newc_header *h);
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~cpio_entry() { free(data); }
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};
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class cpio {
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public:
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struct StringCmp {
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using is_transparent = void;
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bool operator()(std::string_view a, std::string_view b) const {
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return a < b;
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}
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};
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using entry_map = std::map<std::string, std::unique_ptr<cpio_entry>, StringCmp>;
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void load_cpio(const char *file);
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void dump(const char *file);
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void rm(const char *name, bool r = false);
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void extract();
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bool extract(const char *name, const char *file);
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bool exists(const char *name);
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void add(mode_t mode, const char *name, const char *file);
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void mkdir(mode_t mode, const char *name);
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void ln(const char *target, const char *name);
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bool mv(const char *from, const char *to);
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protected:
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entry_map entries;
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static void extract_entry(const entry_map::value_type &e, const char *file);
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void rm(entry_map::iterator &it);
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void mv(entry_map::iterator &it, const char *name);
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private:
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void dump(FILE *out);
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void insert(std::string_view name, cpio_entry *e);
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void load_cpio(const char *buf, size_t sz);
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};
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