zip_fopen(3) BSD Library Functions Manual zip_fopen(3)
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. Oth-
erwise, 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 pro-
vided.
[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>
BSD December 18, 2017 BSD
libzip 1.5.1 - Generated Tue Nov 13 18:32:16 CST 2018