NAME
zip_fopen, 
zip_fopen_index —
  
open file in zip archive for reading
LIBRARY
libzip (-lzip)
SYNOPSIS
#include <zip.h>
zip_file_t *
zip_fopen(
zip_t
  *archive, 
const char
  *fname, 
zip_flags_t
  flags);
zip_file_t *
zip_fopen_index(
zip_t
  *archive, 
zip_uint64_t
  index, 
zip_flags_t
  flags);
DESCRIPTION
The 
zip_fopen() function opens the file name
  
fname in 
archive. The
  
flags argument specifies how the name lookup should be
  done, according to the values are described in
  
zip_name_locate(3). Also, the
  following values may be 
or'ed to it.
  -  
-  
- ZIP_FL_COMPRESSED
- Read the compressed data. Otherwise the data is
      uncompressed by zip_fread().
-  
-  
- ZIP_FL_UNCHANGED
- Read the original data from the zip archive, ignoring any
      changes made to the file.
 
The 
zip_fopen_index() function opens the file at position
  
index.
If encrypted data is encountered, the functions call
  
zip_fopen_encrypted(3) or
  
zip_fopen_index_encrypted(3)
  respectively, using the default password set with
  
zip_set_default_password(3).
RETURN VALUES
Upon successful completion, a 
struct zip_file pointer is
  returned. Otherwise, 
NULL is returned and the error
  code in 
archive is set to indicate the error.
ERRORS
  -  
-  
- [ZIP_ER_CHANGED]
- The file data has been changed.
-  
-  
- [ZIP_ER_COMPNOTSUPP]
- The compression method used is not supported.
-  
-  
- [ZIP_ER_ENCRNOTSUPP]
- The encryption method used is not supported.
-  
-  
- [ZIP_ER_MEMORY]
- Required memory could not be allocated.
-  
-  
- [ZIP_ER_NOPASSWD]
- The file is encrypted, but no password has been
    provided.
-  
-  
- [ZIP_ER_READ]
- A file read error occurred.
-  
-  
- [ZIP_ER_SEEK]
- A file seek error occurred.
-  
-  
- [ZIP_ER_WRONGPASSWD]
- The provided password does not match the password used for
      encryption. Note that some incorrect passwords are not detected by the
      check done by zip_fopen().
-  
-  
- [ZIP_ER_ZLIB]
- Initializing the zlib stream failed.
The function 
zip_fopen() may also fail and set
  
zip_err for any of the errors specified for the routine
  
zip_name_locate(3).
The function 
zip_fopen_index() may also fail with
  
ZIP_ER_INVAL if 
index is
  invalid.
SEE ALSO
libzip(3),
  
zip_fclose(3),
  
zip_fread(3),
  
zip_fseek(3),
  
zip_get_num_entries(3),
  
zip_name_locate(3),
  
zip_set_default_password(3)
HISTORY
zip_fopen() and 
zip_fopen_index() were added
  in libzip 1.0.
AUTHORS
Dieter Baron
  <
dillo@nih.at> and
  
Thomas Klausner
  <
tk@giga.or.at>