/*
- * Copyright (C) 2010-2011 jeanfi@gmail.com
+ * Copyright (C) 2010-2017 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
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
-#include <stdlib.h>
+#define _LARGEFILE_SOURCE 1
+#include "config.h"
+
+#include <dirent.h>
#include <stdio.h>
-#include <sys/stat.h>
+#include <stdlib.h>
#include <string.h>
-#include <dirent.h>
+#include <sys/stat.h>
+
+#include <plog.h>
+#include <pio.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
+
+int is_dir(const char *path)
+{
+ struct stat st;
+
+ int ret = lstat(path, &st);
+
+ if (ret == 0 && S_ISDIR(st.st_mode))
+ return 1;
+
+ return 0;
+}
+
+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 char *dir_normalize(const char *dpath)
+{
+ char *npath;
+ int n;
+
+ if (!dpath || !strlen(dpath))
+ return NULL;
+
+ npath = strdup(dpath);
-#include "pio.h"
+ n = strlen(npath);
-char **dir_list(const char *dpath, int (*filter) (const char *path))
+ if (n > 1 && npath[n - 1] == '/')
+ npath[n - 1] = '\0';
+
+ return npath;
+}
+
+static char **paths_add(char **paths, int n, char *path)
+{
+ char **result;
+
+ result = malloc((n+1) * sizeof(void *));
+
+ memcpy(result + 1, paths, n * sizeof(void *));
+
+ *result = path;
+
+ return result;
+}
+
+char **dir_list(const char *dpath, int (*filter) (const char *))
{
struct dirent *ent;
DIR *dir;
- char **paths;
+ char **paths, *path, *name, **tmp;
int n;
dir = opendir(dpath);
*paths = NULL;
while ((ent = readdir(dir)) != NULL) {
- char *fpath;
- char *name = ent->d_name;
+ name = ent->d_name;
if (!strcmp(name, ".") || !strcmp(name, ".."))
continue;
- fpath = malloc(strlen(dpath) + 1 + strlen(name) + 1);
-
- strcpy(fpath, dpath);
- strcat(fpath, "/");
- strcat(fpath, name);
-
- if (!filter || filter(fpath)) {
- char **npaths;
+ path = path_append(dpath, name);
- n++;
- npaths = malloc(n * sizeof(void *));
- memcpy(npaths + 1, paths, (n - 1) * sizeof(void *));
+ if (!filter || filter(path)) {
+ tmp = paths_add(paths, n, path);
free(paths);
- paths = npaths;
- *npaths = fpath;
+ paths = tmp;
+ n++;
} else {
- free(fpath);
+ free(path);
}
}
free(paths);
}
+char *file_get_content(const char *fpath)
+{
+ long size, n;
+ char *page;
+
+ log_fct_enter();
+
+ 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) {
+ clearerr(fp);
+ n = fread(page, 1, size, fp);
+ if (n != size && ferror(fp)) {
+ free(page);
+ page = NULL;
+ } else {
+ *(page + n) = '\0';
+ }
+ }
+
+ fclose(fp);
+ } else {
+ log_debug("failed to open %s", fpath);
+ page = NULL;
+ }
+ }
+
+ log_fct_exit();
+
+ return page;
+}
+
+long file_get_size(const char *path)
+{
+ FILE *fp;
+ long size;
+
+ if (!is_file(path))
+ return -1;
+
+ fp = fopen(path, "rb");
+ if (fp) {
+ if (fseek(fp, 0, SEEK_END) == -1)
+ size = -1;
+ else
+ size = ftell(fp);
+
+ fclose(fp);
+ } else {
+ size = -1;
+ }
+
+ return size;
+}
+
+#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
+file_copy(const char *src, const char *dst)
+{
+ FILE *fsrc, *fdst;
+ int ret = 0;
+
+ log_fct("copy %s to %s", src, dst);
+
+ 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 *dir, const char *path)
+{
+ char *ret, *ndir;
+
+ ndir = dir_normalize(dir);
+
+ if (!ndir && (!path || !strlen(path)))
+ ret = NULL;
+
+ else if (!ndir) {
+ ret = strdup(path);
+
+ } else if (!path || !strlen(path)) {
+ return ndir;
+
+ } else {
+ ret = malloc(strlen(ndir) + 1 + strlen(path) + 1);
+ strcpy(ret, ndir);
+ strcat(ret, "/");
+ strcat(ret, path);
+ }
+
+ free(ndir);
+
+ return ret;
+}
+
+void mkdirs(const char *dirs, mode_t mode)
+{
+ char *c, *dir;
+ int i;
+
+ log_fct("mkdirs %s", dirs);
+
+ c = (char *)dirs;
+ dir = malloc(strlen(dirs) + 1);
+
+ 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);
+}
+
+void
+file_copy_print_error(int code, const char *src, const char *dst)
+{
+ switch (code) {
+ case 0:
+ break;
+ case FILE_COPY_ERROR_OPEN_SRC:
+ printf("File copy error: failed to open %s.\n", src);
+ break;
+ case FILE_COPY_ERROR_OPEN_DST:
+ printf("File copy error: failed to open %s.\n", dst);
+ break;
+ case FILE_COPY_ERROR_READ:
+ printf("File copy error: failed to read %s.\n", src);
+ break;
+ case FILE_COPY_ERROR_WRITE:
+ printf("File copy error: failed to write %s.\n", src);
+ break;
+ case FILE_COPY_ERROR_ALLOC_BUFFER:
+ printf("File copy error: failed to allocate buffer.\n");
+ break;
+ default:
+ printf("File copy error: unknown error %d.\n", code);
+ }
+}
projects / psensor.git / blobdiff