Reading in progress

FossilOrigin-Name: c8e2947b1c632acc386ad416322affb951f4542b866a4b252b4cc5b0f41ee831

1 files changed, 161 insertions, 0 deletions

diff --git a/src/c_lfiles.c b/src/c_lfiles.c
new file mode 100644
index 0000000..af13a39
--- /dev/null
+++ b/src/c_lfiles.c
@@ -0,0 +1,161 @@
+/*
+ * ========================
+ * =====    ===============
+ * ======  ================
+ * ======  ================
+ * ======  ====   ====   ==
+ * ======  ===     ==  =  =
+ * ======  ===  =  ==     =
+ * =  ===  ===  =  ==  ====
+ * =  ===  ===  =  ==  =  =
+ * ==     =====   ====   ==
+ * ========================
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright © 2020 Joe
+ * 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.
+ * 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. Neither the name of the organization nor the
+ *    names of its contributors may be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JOE ''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 JOE 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.
+ *
+ * unixize: src/c_lfiles.c
+ * 2020-11-05 18:05
+ * Joe
+ *
+ * In this files are functions to handle the files linked list.
+ */
+
+#include <dirent.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "c_unixize.h"
+#include "u_utils.h"
+
+static void
+c_lfiles_add_back
+(struct lfiles_s**	head,
+ struct lfiles_s*	new)
+{
+	struct lfiles_s* tmp;
+
+	if (*head == NULL) {
+		*head = new;
+		return;
+	}
+	tmp = *head;
+	while (tmp->next != NULL) {
+		tmp = tmp->next;
+	}
+	tmp->next = new;
+}
+
+void
+c_lfiles_clear(struct lfiles_s** head)
+{
+	struct lfiles_s* renext;
+	struct lfiles_s* tmp;
+
+	if (head == NULL) {
+		return;
+	}
+	tmp = *head;
+	while (tmp != NULL) {
+		renext = tmp->next;
+		u_memdel((void*)&tmp->filename);
+		u_memdel((void*)&tmp);
+		tmp = renext;
+	}
+	*head = NULL;
+}
+
+static struct lfiles_s*
+c_lfiles_new
+(const char		filename[],
+ unsigned char	filetype)
+{
+	struct lfiles_s* link;
+
+	link = (struct lfiles_s*)malloc(sizeof(struct lfiles_s*));
+	if (link == NULL) {
+		return (NULL);
+	}
+	link->filename = strdup(filename);
+	link->filetype = filetype;
+	if (link->filename == NULL) {
+		u_memdel((void*)&link);
+		return (NULL);
+	}
+	link->next = NULL;
+	return (link);
+}
+
+/* struct lfiles_s* */
+/* c_lfiles_duplicate(struct lfiles_s** head) */
+/* { */
+/*     struct lfiles_s* dup; */
+/*     struct lfiles_s* origin; */
+/*  */
+/*     if (head == NULL) { */
+/*         return (NULL); */
+/*     } */
+/* } */
+
+struct lfiles_s*
+c_lfiles_gather(void)
+{
+	DIR* dirp;
+	struct dirent* dp;
+	struct lfiles_s* head;
+	struct lfiles_s* link;
+
+	head = NULL;
+	link = NULL;
+	dirp = opendir(".");
+	if (dirp == NULL) {
+		dprintf(
+			STDERR_FILENO,
+			"unixize: %s\n",
+			strerror(errno)
+		);
+		return (NULL);
+	}
+	while ((dp = readdir(dirp)) != NULL) {
+		link = c_lfiles_new(dp->d_name, dp->d_type);
+		if (link == NULL) {
+			dprintf(
+					STDERR_FILENO,
+					"unixize: %s\n",
+					strerror(errno)
+				   );
+			c_lfiles_clear(&link);
+			return (NULL);
+		}
+		c_lfiles_add_back(&head, link);
+	}
+	closedir(dirp);
+	return (head);
+}