libzip reorganization
--HG--
branch : HEAD
diff --git a/lib/zip.h b/lib/zip.h
new file mode 100644
index 0000000..6fa7feb
--- /dev/null
+++ b/lib/zip.h
@@ -0,0 +1,122 @@
+#ifndef _HAD_ZIP_H
+#define _HAD_ZIP_H
+
+#include <sys/types.h>
+#include <stdio.h>
+#include <zlib.h>
+
+enum zip_state { Z_UNCHANGED, Z_DELETED, Z_REPLACED, Z_ADDED, Z_RENAMED };
+
+/* flags for zip_open */
+#define ZIP_CREATE 1
+#define ZIP_EXCL 2
+#define ZIP_CHECKCONS 4
+
+int zip_err; /* global variable for errors returned by the low-level
+ library */
+
+/* 0 is no error */
+#define ZERR_MULTIDISK 1
+#define ZERR_RENAME 2
+#define ZERR_CLOSE 3
+#define ZERR_SEEK 4
+#define ZERR_READ 5
+#define ZERR_WRITE 6
+#define ZERR_CRC 7
+#define ZERR_ZIPCLOSED 8
+#define ZERR_FILEEXISTS 9
+#define ZERR_FILENEXISTS 10
+#define ZERR_OPEN 11
+
+extern char *zip_err_str[];
+
+/* zip file */
+
+struct zf {
+ char *zn;
+ FILE *zp;
+ unsigned short comlen, changes;
+ unsigned int cd_size, cd_offset;
+ char *com;
+ int nentry, nentry_alloc;
+ struct zf_entry *entry;
+ int nfile, nfile_alloc;
+ struct zf_file **file;
+};
+
+/* file in zip file */
+
+struct zf_file {
+ struct zf *zf;
+ char *name;
+ int flags; /* -1: eof, >0: error */
+
+ int method;
+ /* position within zip file (fread/fwrite) */
+ long fpos;
+ /* no of bytes left to read */
+ unsigned long bytes_left;
+ /* no of bytes of compressed data left */
+ unsigned long cbytes_left;
+ /* crc so far */
+ unsigned long crc, crc_orig;
+
+ char *buffer;
+ z_stream *zstr;
+};
+
+/* entry in zip file directory */
+
+struct zf_entry {
+ unsigned short version_made, version_need, bitflags, comp_meth,
+ lmtime, lmdate, fnlen, eflen, fcomlen, disknrstart, intatt;
+ unsigned int crc, comp_size, uncomp_size, extatt, local_offset;
+ enum zip_state state;
+ char *fn, *ef, *fcom;
+ char *fn_old;
+ /* only use one of the following three for supplying new data
+ listed in order of priority, if more than one is set */
+ struct zf *ch_data_zf;
+ char *ch_data_buf;
+ FILE *ch_data_fp;
+ /* offset & len of new data in ch_data_fp or ch_data_buf */
+ unsigned int ch_data_offset, ch_data_len;
+ /* if source is another zipfile, number of file in zipfile */
+ unsigned int ch_data_zf_fileno;
+};
+
+
+
+/* opening/closing zip files */
+
+struct zf *zip_open(char *fn, int checkp);
+int zip_close(struct zf *zf);
+
+int zip_name_locate(struct zf *zf, char *fn, int case_sens);
+
+/* read access to files in zip file */
+
+struct zf_file *zff_open(struct zf *zf, char *fn, int case_sens);
+struct zf_file *zff_open_index(struct zf *zf, int fileno);
+int zff_read(struct zf_file *zff, char *outbuf, int toread);
+int zff_close(struct zf_file *zff);
+
+/* high level routines to modify zip file */
+
+int zip_unchange(struct zf *zf, int idx);
+int zip_rename(struct zf *zf, int idx, char *name);
+int zip_add_file(struct zf *zf, char *name, FILE *file, int start, int len);
+int zip_add_data(struct zf *zf, char *name, char *buf, int start, int len);
+int zip_add_zip(struct zf *zf, char *name, struct zf *srczf, int srcidx,
+ int start, int len);
+int zip_replace_file(struct zf *zf, int idx, char *name, FILE *file,
+ int start, int len);
+int zip_replace_data(struct zf *zf, int idx, char *name, char *buf,
+ int start, int len);
+int zip_replace_zip(struct zf *zf, int idx, char *name,
+ struct zf *srczf, int srcidx, int start, int len);
+
+int zip_delete(struct zf *zf, int idx);
+
+
+#endif /* _HAD_ZIP_H */
