1 files changed, 124 insertions, 0 deletions
diff --git a/file.c b/file.c
new file mode 100644
index 00000000..2389d8a7
--- /dev/null
+++ b/file.c
@@ -0,0 +1,124 @@
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <malloc.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <dirent.h>
+#include <stdio.h>
+#include <glib.h>
+#include "file.h"
+
+struct file *
+file_create(char *name)
+{
+        int fd;
+        struct stat stat;
+	struct file *file=malloc(sizeof(*file)+strlen(name)+1);
+
+	if (! file)
+		return file; 
+        fd=open(name, O_RDONLY);
+	if (fd < 0) {
+		free(file);
+		return NULL;
+	}
+        fstat(fd, &stat);
+        file->size=stat.st_size;
+	file->name=(char *)file+sizeof(*file);
+	strcpy(file->name, name);
+        file->begin=mmap(NULL, file->size, PROT_READ|PROT_WRITE, MAP_PRIVATE, fd, 0);
+	g_assert(file->begin != NULL);
+	if (file->begin == (void *)0xffffffff) {
+		perror("mmap");
+	}
+	g_assert(file->begin != (void *)0xffffffff);
+        file->end=file->begin+file->size;
+	file->private=NULL;
+        close(fd);
+
+	g_assert(file != NULL); 
+        return file;
+}
+
+void
+file_set_readonly(struct file *file)
+{
+	mprotect(file->begin, file->end-file->begin, PROT_READ);
+}
+
+void *
+file_opendir(char *dir)
+{
+	return opendir(dir);
+}
+
+char *
+file_readdir(void *hnd)
+{
+	struct dirent *ent;
+
+	ent=readdir(hnd);
+	if (! ent)
+		return NULL;
+	return ent->d_name;
+}
+
+void
+file_closedir(void *hnd)
+{
+	closedir(hnd);
+}
+
+struct file *
+file_create_caseinsensitive(char *name)
+{
+	char dirname[strlen(name)+1];
+	char *filename;
+	char *p;
+	void *d;
+	struct file *ret;
+
+	ret=file_create(name);
+	if (ret)
+		return ret;
+
+	strcpy(dirname, name);
+	p=dirname+strlen(name);
+	while (p > dirname) {
+		if (*p == '/')
+			break;
+		p--;
+	}
+	*p=0;
+	d=file_opendir(dirname);
+	if (d) {
+		*p++='/';
+		while ((filename=file_readdir(d))) {
+			if (!strcasecmp(filename, p)) {
+				strcpy(p, filename);
+				ret=file_create(dirname);
+				if (ret)
+					break;
+			}
+		}
+		file_closedir(d);
+	}
+	return ret;
+}
+
+void
+file_destroy(struct file *f)
+{
+	munmap(f->begin, f->size);
+	free(f);	
+}
+
+int
+file_get_param(struct file *file, struct param_list *param, int count)
+{
+	int i=count;
+	param_add_string("Filename", file->name, &param, &count);
+	param_add_hex("Size", file->size, &param, &count);
+	return i-count;
+}