~mdw / dpkg / blame
| Commit | Line | Data |
|---|---|---|
| 1479465f GJ |
1 | /* |
| 2 | * libdpkg - Debian packaging suite library routines | |
| 3 | * ar.c - primitives for ar handling | |
| 4 | * | |
| 5 | * Copyright © 2010 Guillem Jover <guillem@debian.org> | |
| 6 | * | |
| 7 | * This is free software; you can redistribute it and/or modify | |
| 8 | * it under the terms of the GNU General Public License as published by | |
| 9 | * the Free Software Foundation; either version 2 of the License, or | |
| 10 | * (at your option) any later version. | |
| 11 | * | |
| 12 | * This is distributed in the hope that it will be useful, | |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | * GNU General Public License for more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License | |
| 18 | * along with this program. If not, see <https://www.gnu.org/licenses/>. | |
| 19 | */ | |
| 20 | ||
| 21 | #ifndef LIBDPKG_AR_H | |
| 22 | #define LIBDPKG_AR_H | |
| 23 | ||
| 24 | #include <sys/types.h> | |
| 25 | ||
| 26 | #include <stdbool.h> | |
| 27 | #include <ar.h> | |
| 28 | ||
| 29 | #include <dpkg/macros.h> | |
| 30 | ||
| 31 | DPKG_BEGIN_DECLS | |
| 32 | ||
| 33 | /** | |
| 34 | * @defgroup ar Ar archive handling | |
| 35 | * @ingroup dpkg-public | |
| 36 | * @{ | |
| 37 | */ | |
| 38 | ||
| 39 | #define DPKG_AR_MAGIC "!<arch>\n" | |
| 40 | #define DPKG_AR_FMAG "`\n" | |
| 41 | ||
| 42 | /** | |
| 43 | * An on-disk archive header. | |
| 44 | */ | |
| 45 | struct dpkg_ar_hdr { | |
| 46 | char ar_name[16]; /* Member file name, sometimes / terminated. */ | |
| 47 | char ar_date[12]; /* File date, decimal seconds since Epoch. */ | |
| 48 | char ar_uid[6], ar_gid[6]; /* User and group IDs, in ASCII decimal. */ | |
| 49 | char ar_mode[8]; /* File mode, in ASCII octal. */ | |
| 50 | char ar_size[10]; /* File size, in ASCII decimal. */ | |
| 51 | char ar_fmag[2]; | |
| 52 | }; | |
| 53 | ||
| 54 | /** | |
| 55 | * An archive (Unix ar) file. | |
| 56 | */ | |
| 57 | struct dpkg_ar { | |
| 58 | const char *name; | |
| 59 | mode_t mode; | |
| 60 | time_t time; | |
| 61 | off_t size; | |
| 62 | int fd; | |
| 63 | }; | |
| 64 | ||
| 65 | /** | |
| 66 | * In-memory archive member information. | |
| 67 | */ | |
| 68 | struct dpkg_ar_member { | |
| 69 | struct dpkg_ar_member *next; | |
| 70 | const char *name; | |
| 71 | off_t offset; | |
| 72 | off_t size; | |
| 73 | time_t time; | |
| 74 | mode_t mode; | |
| 75 | uid_t uid; | |
| 76 | gid_t gid; | |
| 77 | }; | |
| 78 | ||
| 79 | struct dpkg_ar * | |
| 80 | dpkg_ar_fdopen(const char *filename, int fd); | |
| 81 | struct dpkg_ar *dpkg_ar_open(const char *filename); | |
| 82 | struct dpkg_ar *dpkg_ar_create(const char *filename, mode_t mode); | |
| 83 | void dpkg_ar_set_mtime(struct dpkg_ar *ar, time_t mtime); | |
| 84 | void dpkg_ar_close(struct dpkg_ar *ar); | |
| 85 | ||
| 86 | void dpkg_ar_normalize_name(struct dpkg_ar_hdr *arh); | |
| 87 | bool dpkg_ar_member_is_illegal(struct dpkg_ar_hdr *arh); | |
| 88 | ||
| 89 | void dpkg_ar_put_magic(struct dpkg_ar *ar); | |
| 90 | void dpkg_ar_member_put_header(struct dpkg_ar *ar, | |
| 91 | struct dpkg_ar_member *member); | |
| 92 | void dpkg_ar_member_put_file(struct dpkg_ar *ar, const char *name, | |
| 93 | int fd, off_t size); | |
| 94 | void dpkg_ar_member_put_mem(struct dpkg_ar *ar, const char *name, | |
| 95 | const void *data, size_t size); | |
| 96 | off_t dpkg_ar_member_get_size(struct dpkg_ar *ar, struct dpkg_ar_hdr *arh); | |
| 97 | ||
| 98 | /** @} */ | |
| 99 | ||
| 100 | DPKG_END_DECLS | |
| 101 | ||
| 102 | #endif /* LIBDPKG_AR_H */ |