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-rw-r--r--sftp-glob.c180
1 files changed, 180 insertions, 0 deletions
diff --git a/sftp-glob.c b/sftp-glob.c
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index 0000000..afeb15f
--- /dev/null
+++ b/sftp-glob.c
@@ -0,0 +1,180 @@
+/* $OpenBSD: sftp-glob.c,v 1.31 2022/10/24 21:51:55 djm Exp $ */
+/*
+ * Copyright (c) 2001-2004 Damien Miller <djm@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include "includes.h"
+
+#include <sys/types.h>
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+
+#include <dirent.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdarg.h>
+
+#include "xmalloc.h"
+#include "sftp.h"
+#include "sftp-common.h"
+#include "sftp-client.h"
+
+int remote_glob(struct sftp_conn *, const char *, int,
+ int (*)(const char *, int), glob_t *);
+
+struct SFTP_OPENDIR {
+ SFTP_DIRENT **dir;
+ int offset;
+};
+
+static struct {
+ struct sftp_conn *conn;
+} cur;
+
+static void *
+fudge_opendir(const char *path)
+{
+ struct SFTP_OPENDIR *r;
+
+ r = xcalloc(1, sizeof(*r));
+
+ if (do_readdir(cur.conn, path, &r->dir)) {
+ free(r);
+ return(NULL);
+ }
+
+ r->offset = 0;
+
+ return((void *)r);
+}
+
+static struct dirent *
+fudge_readdir(struct SFTP_OPENDIR *od)
+{
+ /* Solaris needs sizeof(dirent) + path length (see below) */
+ static char buf[sizeof(struct dirent) + MAXPATHLEN];
+ struct dirent *ret = (struct dirent *)buf;
+#ifdef __GNU_LIBRARY__
+ static int inum = 1;
+#endif /* __GNU_LIBRARY__ */
+
+ if (od->dir[od->offset] == NULL)
+ return(NULL);
+
+ memset(buf, 0, sizeof(buf));
+
+ /*
+ * Solaris defines dirent->d_name as a one byte array and expects
+ * you to hack around it.
+ */
+#ifdef BROKEN_ONE_BYTE_DIRENT_D_NAME
+ strlcpy(ret->d_name, od->dir[od->offset++]->filename, MAXPATHLEN);
+#else
+ strlcpy(ret->d_name, od->dir[od->offset++]->filename,
+ sizeof(ret->d_name));
+#endif
+#ifdef __GNU_LIBRARY__
+ /*
+ * Idiot glibc uses extensions to struct dirent for readdir with
+ * ALTDIRFUNCs. Not that this is documented anywhere but the
+ * source... Fake an inode number to appease it.
+ */
+ ret->d_ino = inum++;
+ if (!inum)
+ inum = 1;
+#endif /* __GNU_LIBRARY__ */
+
+ return(ret);
+}
+
+static void
+fudge_closedir(struct SFTP_OPENDIR *od)
+{
+ free_sftp_dirents(od->dir);
+ free(od);
+}
+
+static int
+fudge_lstat(const char *path, struct stat *st)
+{
+ Attrib *a;
+
+ if (!(a = do_lstat(cur.conn, path, 1)))
+ return(-1);
+
+ attrib_to_stat(a, st);
+
+ return(0);
+}
+
+static int
+fudge_stat(const char *path, struct stat *st)
+{
+ Attrib *a;
+
+ if (!(a = do_stat(cur.conn, path, 1)))
+ return(-1);
+
+ attrib_to_stat(a, st);
+
+ return(0);
+}
+
+int
+remote_glob(struct sftp_conn *conn, const char *pattern, int flags,
+ int (*errfunc)(const char *, int), glob_t *pglob)
+{
+ int r;
+ size_t l;
+ char *s;
+ struct stat sb;
+
+ pglob->gl_opendir = fudge_opendir;
+ pglob->gl_readdir = (struct dirent *(*)(void *))fudge_readdir;
+ pglob->gl_closedir = (void (*)(void *))fudge_closedir;
+ pglob->gl_lstat = fudge_lstat;
+ pglob->gl_stat = fudge_stat;
+
+ memset(&cur, 0, sizeof(cur));
+ cur.conn = conn;
+
+ if ((r = glob(pattern, flags | GLOB_ALTDIRFUNC, errfunc, pglob)) != 0)
+ return r;
+ /*
+ * When both GLOB_NOCHECK and GLOB_MARK are active, a single gl_pathv
+ * entry has been returned and that entry has not already been marked,
+ * then check whether it needs a '/' appended as a directory mark.
+ *
+ * This ensures that a NOCHECK result is annotated as a directory.
+ * The glob(3) spec doesn't promise to mark NOCHECK entries, but doing
+ * it simplifies our callers (sftp/scp) considerably.
+ *
+ * XXX doesn't try to handle gl_offs.
+ */
+ if ((flags & (GLOB_NOCHECK|GLOB_MARK)) == (GLOB_NOCHECK|GLOB_MARK) &&
+ pglob->gl_matchc == 0 && pglob->gl_offs == 0 &&
+ pglob->gl_pathc == 1 && (s = pglob->gl_pathv[0]) != NULL &&
+ (l = strlen(s)) > 0 && s[l-1] != '/') {
+ if (fudge_stat(s, &sb) == 0 && S_ISDIR(sb.st_mode)) {
+ /* NOCHECK on a directory; annotate */
+ if ((s = realloc(s, l + 2)) != NULL) {
+ memcpy(s + l, "/", 2);
+ pglob->gl_pathv[0] = s;
+ }
+ }
+ }
+ return 0;
+}