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#define _GNU_SOURCE
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <xenhypfs.h>
static struct xenhypfs_handle *hdl;
static int usage(void)
{
fprintf(stderr, "usage: xenhypfs ls <path>\n");
fprintf(stderr, " xenhypfs cat [-b] <path>\n");
fprintf(stderr, " xenhypfs write <path> <val>\n");
fprintf(stderr, " xenhypfs tree\n");
return 1;
}
static void xenhypfs_print_escaped(char *string)
{
char *c;
for (c = string; *c; c++) {
if (isgraph(*c) || isspace(*c))
printf("%c", *c);
else
printf("\\x%02x", *c);
}
printf("\n");
}
static int xenhypfs_cat(int argc, char *argv[])
{
int ret = 0;
char *result;
char *path;
bool bin = false;
switch (argc) {
case 1:
path = argv[0];
break;
case 2:
if (strcmp(argv[0], "-b"))
return usage();
bin = true;
path = argv[1];
break;
default:
return usage();
}
result = xenhypfs_read(hdl, path);
if (!result) {
perror("could not read");
ret = 3;
} else {
if (!bin)
printf("%s\n", result);
else
xenhypfs_print_escaped(result);
free(result);
}
return ret;
}
static int xenhypfs_wr(char *path, char *val)
{
int ret;
ret = xenhypfs_write(hdl, path, val);
if (ret) {
perror("could not write");
ret = 3;
}
return ret;
}
static const char *xenhypfs_type(struct xenhypfs_dirent *ent)
{
const char *res;
switch (ent->type) {
case xenhypfs_type_dir:
res = "<dir> ";
break;
case xenhypfs_type_blob:
res = "<blob> ";
break;
case xenhypfs_type_string:
res = "<string>";
break;
case xenhypfs_type_uint:
res = "<uint> ";
break;
case xenhypfs_type_int:
res = "<int> ";
break;
case xenhypfs_type_bool:
res = "<bool> ";
break;
default:
res = "<\?\?\?> ";
break;
}
return res;
}
static int xenhypfs_ls(char *path)
{
struct xenhypfs_dirent *ent;
unsigned int n, i;
int ret = 0;
ent = xenhypfs_readdir(hdl, path, &n);
if (!ent) {
perror("could not read dir");
ret = 3;
} else {
for (i = 0; i < n; i++)
printf("%s r%c %s\n", xenhypfs_type(ent + i),
(ent[i].flags & XENHYPFS_FLAG_WRITABLE) ? 'w' : '-',
ent[i].name);
free(ent);
}
return ret;
}
static int xenhypfs_tree_sub(const char *path, unsigned int depth)
{
struct xenhypfs_dirent *ent;
unsigned int n, i;
int ret = 0;
char *p;
ent = xenhypfs_readdir(hdl, path, &n);
if (!ent)
return 2;
for (i = 0; i < n; i++) {
printf("%*s%s%s\n", depth * 2, "", ent[i].name,
ent[i].type == xenhypfs_type_dir ? "/" : "");
if (ent[i].type == xenhypfs_type_dir) {
if (asprintf(&p, "%s%s%s", path, (depth == 1) ? "" : "/",
ent[i].name) < 0) {
ret = 2;
break;
}
if (xenhypfs_tree_sub(p, depth + 1))
ret = 2;
free(p);
}
}
free(ent);
return ret;
}
static int xenhypfs_tree(void)
{
printf("/\n");
return xenhypfs_tree_sub("/", 1);
}
int main(int argc, char *argv[])
{
int ret;
hdl = xenhypfs_open(NULL, 0);
if (!hdl) {
fprintf(stderr, "Could not open libxenhypfs\n");
ret = 2;
} else if (argc >= 3 && !strcmp(argv[1], "cat"))
ret = xenhypfs_cat(argc - 2, argv + 2);
else if (argc == 3 && !strcmp(argv[1], "ls"))
ret = xenhypfs_ls(argv[2]);
else if (argc == 4 && !strcmp(argv[1], "write"))
ret = xenhypfs_wr(argv[2], argv[3]);
else if (argc == 2 && !strcmp(argv[1], "tree"))
ret = xenhypfs_tree();
else
ret = usage();
xenhypfs_close(hdl);
return ret;
}
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