X-Git-Url: https://git.wpitchoune.net/gitweb/?p=prss.git;a=blobdiff_plain;f=src%2Fio.c;fp=src%2Fio.c;h=e5bfdbbe50d5d51093e22a729ba5036b01cfb560;hp=0000000000000000000000000000000000000000;hb=77684af25efe1e3d3ca4e3462aed42c3489c0558;hpb=e68e296d497fcf6aadf73c0ee8f2dcd58aff0cc8

diff --git a/src/io.c b/src/io.c
new file mode 100644
index 0000000..e5bfdbb
--- /dev/null
+++ b/src/io.c
@@ -0,0 +1,194 @@
+/*
+ * Copyright (C) 2011-2012 jeanfi@gmail.com
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/stat.h>
+
+#include "io.h"
+
+/* Directory separator is \ when cross-compiling for MS Windows
+   systems */
+#if defined(__MINGW32__)
+#define DIRSEP ('\\')
+#else
+#define DIRSEP '/'
+#endif
+
+#define FCOPY_BUF_SZ 4096
+
+static int file_copy(FILE *src, FILE *dst)
+{
+	int ret = 0;
+	char *buf = malloc(FCOPY_BUF_SZ);
+	int n;
+
+	if (!buf)
+		return FILE_COPY_ERROR_ALLOC_BUFFER;
+
+	while (!ret) {
+		n = fread(buf, 1, FCOPY_BUF_SZ, src);
+		if (n) {
+			if (fwrite(buf, 1, n, dst) != n)
+				ret = FILE_COPY_ERROR_WRITE;
+		} else {
+			if (!feof(src))
+				ret = FILE_COPY_ERROR_READ;
+			else
+				break;
+		}
+	}
+
+	free(buf);
+
+	return ret;
+}
+
+int fcopy(const char *src, const char *dst)
+{
+	FILE *fsrc, *fdst;
+	int ret = 0;
+
+	fsrc = fopen(src, "r");
+
+	if (fsrc) {
+		fdst = fopen(dst, "w+");
+
+		if (fdst) {
+			ret = file_copy(fsrc, fdst);
+			fclose(fdst);
+		} else {
+			ret = FILE_COPY_ERROR_OPEN_DST;
+		}
+
+		fclose(fsrc);
+	} else {
+		ret = FILE_COPY_ERROR_OPEN_SRC;
+	}
+
+	return ret;
+}
+
+char *path_append(const char *odir, const char *name)
+{
+	char *dir;
+
+	dir = malloc(strlen(odir)+1+strlen(name)+1);
+
+	strcpy(dir, odir);
+	if (odir[strlen(odir) - 1] != '/' && name[0] != '/')
+		strcat(dir, "/");
+	strcat(dir, name);
+
+	return dir;
+}
+
+void mkdirs(const char *dirs, mode_t mode)
+{
+	char *c = (char *)dirs;
+	char *dir = malloc(strlen(dirs) + 1);
+
+	int i = 0;
+	while (*c) {
+		if ((*c == DIRSEP || *c == '\0') && c != dirs) {
+			strncpy(dir, dirs, i);
+			dir[i] = '\0';
+			mkdir(dir, mode);
+		}
+
+		c++;
+		i++;
+	}
+
+	mkdir(dirs, mode);
+
+	free(dir);
+}
+
+static int is_file(const char *path)
+{
+	struct stat st;
+
+	int ret = lstat(path, &st);
+
+	if (ret == 0 && S_ISREG(st.st_mode))
+		return 1;
+
+	return 0;
+}
+
+static long file_get_size(const char *path)
+{
+	FILE *fp;
+
+	if (!is_file(path))
+		return -1;
+
+	fp = fopen(path, "rb");
+	if (fp) {
+		long size;
+
+		if (fseek(fp, 0, SEEK_END) == -1)
+			return -1;
+
+		size = ftell(fp);
+
+		fclose(fp);
+
+		return size;
+	}
+
+	return -1;
+}
+
+char *file_get_content(const char *fpath)
+{
+	long size;
+
+	char *page;
+
+	size = file_get_size(fpath);
+	if (size == -1) {
+		page = NULL;
+
+	} else if (size == 0) {
+		page = malloc(1);
+		*page = '\0';
+
+	} else {
+		FILE *fp = fopen(fpath, "rb");
+		if (fp) {
+			page = malloc(size + 1);
+			if (!page || size != fread(page, 1, size, fp)) {
+				free(page);
+				return NULL;
+			}
+
+			*(page + size) = '\0';
+
+			fclose(fp);
+		} else {
+			page = NULL;
+		}
+	}
+
+	return page;
+}
+