zip_set_archive_comment.c File Reference

#include <stdlib.h>
#include "zipint.h"

Go to the source code of this file.

Functions
ZIP_EXTERN int	zip_set_archive_comment (zip_t *za, const char *comment, zip_uint16_t len)

Function Documentation

zip_set_archive_comment()

ZIP_EXTERN int zip_set_archive_comment	(	zip_t *	za,
		const char *	comment,
		zip_uint16_t	len
	)

Definition at line 41 of file zip_set_archive_comment.c.

                                                                          {
    zip_string_t *cstr;
 
    if (ZIP_IS_RDONLY(za)) {
        zip_error_set(&za->error, ZIP_ER_RDONLY, 0);
        return -1;
    }
 
    if (len > 0 && comment == NULL) {
        zip_error_set(&za->error, ZIP_ER_INVAL, 0);
        return -1;
    }
 
    if (len > 0) {
        if ((cstr = _zip_string_new((const zip_uint8_t *)comment, len, ZIP_FL_ENC_GUESS, &za->error)) == NULL)
            return -1;
 
        if (_zip_guess_encoding(cstr, ZIP_ENCODING_UNKNOWN) == ZIP_ENCODING_CP437) {
            _zip_string_free(cstr);
            zip_error_set(&za->error, ZIP_ER_INVAL, 0);
            return -1;
        }
    }
    else
        cstr = NULL;
 
    _zip_string_free(za->comment_changes);
    za->comment_changes = NULL;
 
    if (((za->comment_orig && _zip_string_equal(za->comment_orig, cstr)) || (za->comment_orig == NULL && cstr == NULL))) {
        _zip_string_free(cstr);
        za->comment_changed = 0;
    }
    else {
        za->comment_changes = cstr;
        za->comment_changed = 1;
    }
 
    return 0;
}

References _zip_guess_encoding(), _zip_string_equal(), _zip_string_free(), _zip_string_new(), zip::comment_changed, zip::comment_changes, zip::comment_orig, zip::error, len, NULL, za, ZIP_ENCODING_CP437, ZIP_ENCODING_UNKNOWN, ZIP_ER_INVAL, ZIP_ER_RDONLY, zip_error_set(), ZIP_FL_ENC_GUESS, and ZIP_IS_RDONLY.

Referenced by set_archive_comment().