ported libfetch to Linux and gcc 4.7 with almost all flags

1 files changed, 269 insertions, 0 deletions

diff --git a/libfetch/file.c b/libfetch/file.c
new file mode 100644
index 0000000..43d8823
--- /dev/null
+++ b/libfetch/file.c
@@ -0,0 +1,269 @@
+/*	$NetBSD: file.c,v 1.15 2009/10/15 12:36:57 joerg Exp $	*/
+/*-
+ * Copyright (c) 1998-2004 Dag-Erling Coïdan Smørgrav
+ * Copyright (c) 2008, 2009 Joerg Sonnenberger <joerg@NetBSD.org>
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer
+ *    in this position and unchanged.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The name of the author may not be used to endorse or promote products
+ *    derived from this software without specific prior written permission
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * $FreeBSD: file.c,v 1.18 2007/12/14 10:26:58 des Exp $
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+#ifndef NETBSD
+#include <nbcompat.h>
+#endif
+
+#include <sys/stat.h>
+
+#include <dirent.h>
+#include <fcntl.h>
+#include <fnmatch.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "fetch.h"
+#include "common.h"
+
+static int	fetch_stat_file(int, struct url_stat *);
+
+static ssize_t
+fetchFile_read(void *cookie, void *buf, size_t len)
+{
+	return read(*(int *)cookie, buf, len);
+}
+
+static ssize_t
+fetchFile_write(void *cookie, const void *buf, size_t len)
+{
+	return write(*(int *)cookie, buf, len);
+}
+
+static void
+fetchFile_close(void *cookie)
+{
+	int fd = *(int *)cookie;
+
+	free(cookie);
+
+	close(fd);
+}
+
+fetchIO *
+fetchXGetFile(struct url *u, struct url_stat *us, const char *flags)
+{
+	char *path;
+	fetchIO *f;
+	struct url_stat local_us;
+	int if_modified_since, fd, *cookie;
+
+	if_modified_since = CHECK_FLAG('i');
+	if (if_modified_since && us == NULL)
+		us = &local_us;
+
+	if ((path = fetchUnquotePath(u)) == NULL) {
+		fetch_syserr();
+		return NULL;
+	}
+
+	fd = open(path, O_RDONLY);
+	free(path);
+	if (fd == -1) {
+		fetch_syserr();
+		return NULL;
+	}
+
+	if (us && fetch_stat_file(fd, us) == -1) {
+		close(fd);
+		fetch_syserr();
+		return NULL;
+	}
+
+	if (if_modified_since && u->last_modified > 0 &&
+	    u->last_modified >= us->mtime) {
+		close(fd);
+		fetchLastErrCode = FETCH_UNCHANGED;
+		snprintf(fetchLastErrString, MAXERRSTRING, "Unchanged");
+		return NULL;
+	}
+
+	if (u->offset && lseek(fd, u->offset, SEEK_SET) == -1) {
+		close(fd);
+		fetch_syserr();
+		return NULL;
+	}
+
+	cookie = (int *)malloc(sizeof(int));
+	if (cookie == NULL) {
+		close(fd);
+		fetch_syserr();
+		return NULL;
+	}
+
+	*cookie = fd;
+	f = fetchIO_unopen(cookie, fetchFile_read, fetchFile_write, fetchFile_close);
+	if (f == NULL) {
+		close(fd);
+		free(cookie);
+	}
+	return f;
+}
+
+fetchIO *
+fetchGetFile(struct url *u, const char *flags)
+{
+	return (fetchXGetFile(u, NULL, flags));
+}
+
+fetchIO *
+fetchPutFile(struct url *u, const char *flags)
+{
+	char *path;
+	fetchIO *f;
+	int fd, *cookie;
+
+	if ((path = fetchUnquotePath(u)) == NULL) {
+		fetch_syserr();
+		return NULL;
+	}
+
+	if (CHECK_FLAG('a'))
+		fd = open(path, O_WRONLY | O_APPEND);
+	else
+		fd = open(path, O_WRONLY);
+
+	free(path);
+
+	if (fd == -1) {
+		fetch_syserr();
+		return NULL;
+	}
+
+	if (u->offset && lseek(fd, u->offset, SEEK_SET) == -1) {
+		close(fd);
+		fetch_syserr();
+		return NULL;
+	}
+
+	cookie = (int *)malloc(sizeof(int));
+	if (cookie == NULL) {
+		close(fd);
+		fetch_syserr();
+		return NULL;
+	}
+
+	*cookie = fd;
+	f = fetchIO_unopen(cookie, fetchFile_read, fetchFile_write, fetchFile_close);
+	if (f == NULL) {
+		close(fd);
+		free(cookie);
+	}
+	return f;
+}
+
+static int
+fetch_stat_file(int fd, struct url_stat *us)
+{
+	struct stat sb;
+
+	us->size = -1;
+	us->atime = us->mtime = 0;
+	if (fstat(fd, &sb) == -1) {
+		fetch_syserr();
+		return (-1);
+	}
+	us->size = sb.st_size;
+	us->atime = sb.st_atime;
+	us->mtime = sb.st_mtime;
+	return (0);
+}
+
+int
+fetchStatFile(struct url *u, struct url_stat *us, const char *flags)
+{
+	char *path;
+	int fd, rv;
+
+	(void)flags;
+	
+	if ((path = fetchUnquotePath(u)) == NULL) {
+		fetch_syserr();
+		return -1;
+	}
+
+	fd = open(path, O_RDONLY);
+	free(path);
+
+	if (fd == -1) {
+		fetch_syserr();
+		return -1;
+	}
+
+	rv = fetch_stat_file(fd, us);
+	close(fd);
+
+	return rv;
+}
+
+int
+fetchListFile(struct url_list *ue, struct url *u, const char *pattern, const char *flags)
+{
+	char *path;
+	struct dirent *de;
+	DIR *dir;
+	int ret;
+	
+	(void)flags;
+
+	if ((path = fetchUnquotePath(u)) == NULL) {
+		fetch_syserr();
+		return -1;
+	}
+		
+	dir = opendir(path);
+	free(path);
+
+	if (dir == NULL) {
+		fetch_syserr();
+		return -1;
+	}
+
+	ret = 0;
+
+	while ((de = readdir(dir)) != NULL) {
+		if (pattern && fnmatch(pattern, de->d_name, 0) != 0)
+			continue;
+		ret = fetch_add_entry(ue, u, de->d_name, 0);
+		if (ret)
+			break;
+	}
+
+	closedir(dir);
+
+	return ret;
+}