Darren Tucker
ecaaa4f9e4
This moves the logic for selecting whether or not we can use the system glob into configure, and if either don't have glob or can't use it, we create the shim. Removes several diffs vs upstream.
180 lines
4.3 KiB
C
180 lines
4.3 KiB
C
/* $OpenBSD: sftp-glob.c,v 1.33 2023/09/10 23:12:32 djm Exp $ */
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/*
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* Copyright (c) 2001-2004 Damien Miller <[email protected]>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "includes.h"
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <dirent.h>
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#include <glob.h>
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#include <stdlib.h>
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#include <string.h>
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#include <stdarg.h>
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#include "xmalloc.h"
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#include "sftp.h"
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#include "sftp-common.h"
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#include "sftp-client.h"
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int sftp_glob(struct sftp_conn *, const char *, int,
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int (*)(const char *, int), glob_t *);
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struct SFTP_OPENDIR {
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SFTP_DIRENT **dir;
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int offset;
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};
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static struct {
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struct sftp_conn *conn;
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} cur;
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static void *
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fudge_opendir(const char *path)
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{
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struct SFTP_OPENDIR *r;
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r = xcalloc(1, sizeof(*r));
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if (sftp_readdir(cur.conn, path, &r->dir)) {
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free(r);
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return(NULL);
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}
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r->offset = 0;
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return((void *)r);
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}
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static struct dirent *
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fudge_readdir(struct SFTP_OPENDIR *od)
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{
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/* Solaris needs sizeof(dirent) + path length (see below) */
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static char buf[sizeof(struct dirent) + MAXPATHLEN];
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struct dirent *ret = (struct dirent *)buf;
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#ifdef __GNU_LIBRARY__
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static int inum = 1;
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#endif /* __GNU_LIBRARY__ */
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if (od->dir[od->offset] == NULL)
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return(NULL);
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memset(buf, 0, sizeof(buf));
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/*
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* Solaris defines dirent->d_name as a one byte array and expects
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* you to hack around it.
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*/
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#ifdef BROKEN_ONE_BYTE_DIRENT_D_NAME
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strlcpy(ret->d_name, od->dir[od->offset++]->filename, MAXPATHLEN);
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#else
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strlcpy(ret->d_name, od->dir[od->offset++]->filename,
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sizeof(ret->d_name));
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#endif
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#ifdef __GNU_LIBRARY__
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/*
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* Idiot glibc uses extensions to struct dirent for readdir with
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* ALTDIRFUNCs. Not that this is documented anywhere but the
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* source... Fake an inode number to appease it.
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*/
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ret->d_ino = inum++;
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if (!inum)
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inum = 1;
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#endif /* __GNU_LIBRARY__ */
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return(ret);
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}
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static void
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fudge_closedir(struct SFTP_OPENDIR *od)
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{
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sftp_free_dirents(od->dir);
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free(od);
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}
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static int
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fudge_lstat(const char *path, struct stat *st)
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{
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Attrib a;
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if (sftp_lstat(cur.conn, path, 1, &a) != 0)
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return -1;
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attrib_to_stat(&a, st);
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return 0;
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}
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static int
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fudge_stat(const char *path, struct stat *st)
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{
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Attrib a;
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if (sftp_stat(cur.conn, path, 1, &a) != 0)
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return -1;
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attrib_to_stat(&a, st);
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return(0);
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}
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int
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sftp_glob(struct sftp_conn *conn, const char *pattern, int flags,
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int (*errfunc)(const char *, int), glob_t *pglob)
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{
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int r;
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size_t l;
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char *s;
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struct stat sb;
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pglob->gl_opendir = fudge_opendir;
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pglob->gl_readdir = (struct dirent *(*)(void *))fudge_readdir;
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pglob->gl_closedir = (void (*)(void *))fudge_closedir;
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pglob->gl_lstat = fudge_lstat;
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pglob->gl_stat = fudge_stat;
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memset(&cur, 0, sizeof(cur));
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cur.conn = conn;
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if ((r = glob(pattern, flags | GLOB_ALTDIRFUNC, errfunc, pglob)) != 0)
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return r;
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/*
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* When both GLOB_NOCHECK and GLOB_MARK are active, a single gl_pathv
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* entry has been returned and that entry has not already been marked,
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* then check whether it needs a '/' appended as a directory mark.
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*
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* This ensures that a NOCHECK result is annotated as a directory.
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* The glob(3) spec doesn't promise to mark NOCHECK entries, but doing
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* it simplifies our callers (sftp/scp) considerably.
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*
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* XXX doesn't try to handle gl_offs.
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*/
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if ((flags & (GLOB_NOCHECK|GLOB_MARK)) == (GLOB_NOCHECK|GLOB_MARK) &&
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pglob->gl_matchc == 0 && pglob->gl_offs == 0 &&
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pglob->gl_pathc == 1 && (s = pglob->gl_pathv[0]) != NULL &&
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(l = strlen(s)) > 0 && s[l-1] != '/') {
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if (fudge_stat(s, &sb) == 0 && S_ISDIR(sb.st_mode)) {
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/* NOCHECK on a directory; annotate */
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if ((s = realloc(s, l + 2)) != NULL) {
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memcpy(s + l, "/", 2);
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pglob->gl_pathv[0] = s;
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}
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}
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}
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return 0;
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}
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