Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame^] | 1 | /* $OpenBSD: sftp-glob.c,v 1.22 2006/08/03 03:34:42 deraadt Exp $ */ |
| 2 | /* |
| 3 | * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org> |
| 4 | * |
| 5 | * Permission to use, copy, modify, and distribute this software for any |
| 6 | * purpose with or without fee is hereby granted, provided that the above |
| 7 | * copyright notice and this permission notice appear in all copies. |
| 8 | * |
| 9 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| 10 | * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| 11 | * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| 12 | * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| 13 | * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 14 | * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 15 | * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 16 | */ |
| 17 | |
| 18 | #include "includes.h" |
| 19 | |
| 20 | #include <sys/types.h> |
| 21 | #ifdef HAVE_SYS_STAT_H |
| 22 | # include <sys/stat.h> |
| 23 | #endif |
| 24 | |
| 25 | #include <dirent.h> |
| 26 | #include <string.h> |
| 27 | |
| 28 | #include "xmalloc.h" |
| 29 | #include "sftp.h" |
| 30 | #include "buffer.h" |
| 31 | #include "sftp-common.h" |
| 32 | #include "sftp-client.h" |
| 33 | |
| 34 | int remote_glob(struct sftp_conn *, const char *, int, |
| 35 | int (*)(const char *, int), glob_t *); |
| 36 | |
| 37 | struct SFTP_OPENDIR { |
| 38 | SFTP_DIRENT **dir; |
| 39 | int offset; |
| 40 | }; |
| 41 | |
| 42 | static struct { |
| 43 | struct sftp_conn *conn; |
| 44 | } cur; |
| 45 | |
| 46 | static void * |
| 47 | fudge_opendir(const char *path) |
| 48 | { |
| 49 | struct SFTP_OPENDIR *r; |
| 50 | |
| 51 | r = xmalloc(sizeof(*r)); |
| 52 | |
| 53 | if (do_readdir(cur.conn, (char *)path, &r->dir)) { |
| 54 | xfree(r); |
| 55 | return(NULL); |
| 56 | } |
| 57 | |
| 58 | r->offset = 0; |
| 59 | |
| 60 | return((void *)r); |
| 61 | } |
| 62 | |
| 63 | static struct dirent * |
| 64 | fudge_readdir(struct SFTP_OPENDIR *od) |
| 65 | { |
| 66 | /* Solaris needs sizeof(dirent) + path length (see below) */ |
| 67 | static char buf[sizeof(struct dirent) + MAXPATHLEN]; |
| 68 | struct dirent *ret = (struct dirent *)buf; |
| 69 | #ifdef __GNU_LIBRARY__ |
| 70 | static int inum = 1; |
| 71 | #endif /* __GNU_LIBRARY__ */ |
| 72 | |
| 73 | if (od->dir[od->offset] == NULL) |
| 74 | return(NULL); |
| 75 | |
| 76 | memset(buf, 0, sizeof(buf)); |
| 77 | |
| 78 | /* |
| 79 | * Solaris defines dirent->d_name as a one byte array and expects |
| 80 | * you to hack around it. |
| 81 | */ |
| 82 | #ifdef BROKEN_ONE_BYTE_DIRENT_D_NAME |
| 83 | strlcpy(ret->d_name, od->dir[od->offset++]->filename, MAXPATHLEN); |
| 84 | #else |
| 85 | strlcpy(ret->d_name, od->dir[od->offset++]->filename, |
| 86 | sizeof(ret->d_name)); |
| 87 | #endif |
| 88 | #ifdef __GNU_LIBRARY__ |
| 89 | /* |
| 90 | * Idiot glibc uses extensions to struct dirent for readdir with |
| 91 | * ALTDIRFUNCs. Not that this is documented anywhere but the |
| 92 | * source... Fake an inode number to appease it. |
| 93 | */ |
| 94 | ret->d_ino = inum++; |
| 95 | if (!inum) |
| 96 | inum = 1; |
| 97 | #endif /* __GNU_LIBRARY__ */ |
| 98 | |
| 99 | return(ret); |
| 100 | } |
| 101 | |
| 102 | static void |
| 103 | fudge_closedir(struct SFTP_OPENDIR *od) |
| 104 | { |
| 105 | free_sftp_dirents(od->dir); |
| 106 | xfree(od); |
| 107 | } |
| 108 | |
| 109 | static int |
| 110 | fudge_lstat(const char *path, struct stat *st) |
| 111 | { |
| 112 | Attrib *a; |
| 113 | |
| 114 | if (!(a = do_lstat(cur.conn, (char *)path, 0))) |
| 115 | return(-1); |
| 116 | |
| 117 | attrib_to_stat(a, st); |
| 118 | |
| 119 | return(0); |
| 120 | } |
| 121 | |
| 122 | static int |
| 123 | fudge_stat(const char *path, struct stat *st) |
| 124 | { |
| 125 | Attrib *a; |
| 126 | |
| 127 | if (!(a = do_stat(cur.conn, (char *)path, 0))) |
| 128 | return(-1); |
| 129 | |
| 130 | attrib_to_stat(a, st); |
| 131 | |
| 132 | return(0); |
| 133 | } |
| 134 | |
| 135 | int |
| 136 | remote_glob(struct sftp_conn *conn, const char *pattern, int flags, |
| 137 | int (*errfunc)(const char *, int), glob_t *pglob) |
| 138 | { |
| 139 | pglob->gl_opendir = fudge_opendir; |
| 140 | pglob->gl_readdir = (struct dirent *(*)(void *))fudge_readdir; |
| 141 | pglob->gl_closedir = (void (*)(void *))fudge_closedir; |
| 142 | pglob->gl_lstat = fudge_lstat; |
| 143 | pglob->gl_stat = fudge_stat; |
| 144 | |
| 145 | memset(&cur, 0, sizeof(cur)); |
| 146 | cur.conn = conn; |
| 147 | |
| 148 | return(glob(pattern, flags | GLOB_ALTDIRFUNC, errfunc, pglob)); |
| 149 | } |