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Man Pages
ZIP_STAT(3) FreeBSD Library Functions Manual ZIP_STAT(3)

zip_stat, zip_stat_index
get information about file

libzip (-lzip)

#include <zip.h>
int
zip_stat(zip_t *archive, const char *fname, zip_flags_t flags, zip_stat_t *sb);
int
zip_stat_index(zip_t *archive, zip_uint64_t index, zip_flags_t flags, zip_stat_t *sb);

The zip_stat() function obtains information about the file named fname in archive. The flags argument specifies how the name lookup should be done. Its values are described in zip_name_locate(3). Also, ZIP_FL_UNCHANGED may be or'ed to it to request information about the original file in the archive, ignoring any changes made.
The zip_stat_index() function obtains information about the file at position index.
The sb argument is a pointer to a struct zip_stat (shown below), into which information about the file is placed.
struct zip_stat { 
    zip_uint64_t valid;                 /* which fields have valid values */ 
    const char *name;                   /* name of the file */ 
    zip_uint64_t index;                 /* index within archive */ 
    zip_uint64_t size;                  /* size of file (uncompressed) */ 
    zip_uint64_t comp_size;             /* size of file (compressed) */ 
    time_t mtime;                       /* modification time */ 
    zip_uint32_t crc;                   /* crc of file data */ 
    zip_uint16_t comp_method;           /* compression method used */ 
    zip_uint16_t encryption_method;     /* encryption method used */ 
    zip_uint32_t flags;                 /* reserved for future use */ 
};
The structure pointed to by sb must be allocated before calling zip_stat() or zip_stat_index().
The valid field of the structure specifies which other fields are valid. Check if the flag defined by the following defines are in valid before accessing the fields:

Upon successful completion 0 is returned. Otherwise, -1 is returned and the error information in archive is set to indicate the error.

The function zip_stat() can fail for any of the errors specified for the routine zip_name_locate(3).
The function zip_stat_index() fails and sets the error information to ZIP_ER_INVAL if index is invalid. If ZIP_FL_UNCHANGED is not set and no information can be obtained from the source callback, the error information is set to ZIP_ER_CHANGED.

libzip(3), zip_get_num_entries(3), zip_name_locate(3), zip_stat_init(3)

zip_stat() was added in libzip 0.6. In libzip 0.11 the type of flags was changed from int to zip_flags_t.
zip_stat_index() was added in libzip 0.6. In libzip 0.10 the type of index was changed from int to zip_uint64_t. In libzip 0.11 the type of flags was changed from int to zip_flags_t.

Dieter Baron <dillo@nih.at> and Thomas Klausner <tk@giga.or.at>
December 18, 2017 FreeBSD 12.0-RELEASE

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