From f0d08887b857fce1fe95a68d29eb7a07cd527d7c Mon Sep 17 00:00:00 2001
From: Michael Clark <michael@metaparadigm.com>
Date: Tue, 13 Mar 2007 08:26:18 +0000
Subject: import of version 0.1

git-svn-id: http://svn.metaparadigm.com/svn/json-c/trunk@2 327403b1-1117-474d-bef2-5cb71233fd97
---
 json_util.c | 79 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 json_util.c

(limited to 'json_util.c')

diff --git a/json_util.c b/json_util.c
new file mode 100644
index 0000000..483644e
--- /dev/null
+++ b/json_util.c
@@ -0,0 +1,79 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+
+#include "bits.h"
+#include "debug.h"
+#include "printbuf.h"
+#include "json_object.h"
+#include "json_tokener.h"
+#include "json_util.h"
+
+
+struct json_object* json_object_from_file(char *filename)
+{
+  struct printbuf *pb;
+  struct json_object *obj;
+  char buf[JSON_FILE_BUF_SIZE];
+  int fd, ret;
+
+  if((fd = open(filename, O_RDONLY)) < 0) {
+    mc_error("json_object_from_file: error reading file %s: %s\n",
+	     filename, strerror(errno));
+    return error_ptr(-1);
+  }
+  if(!(pb = printbuf_new())) {
+    mc_error("json_object_from_file: printbuf_new failed\n");
+    return error_ptr(-1);
+  }
+  while((ret = read(fd, buf, JSON_FILE_BUF_SIZE)) > 0) {
+    printbuf_memappend(pb, buf, ret);
+  }
+  close(fd);
+  if(ret < 0) {
+    mc_abort("json_object_from_file: error reading file %s: %s\n",
+	     filename, strerror(errno));
+    printbuf_free(pb);
+    return error_ptr(-1);
+  }
+  obj = json_tokener_parse(pb->buf);
+  printbuf_free(pb);
+  return obj;
+}
+
+int json_object_to_file(char *filename, struct json_object *obj)
+{
+  char *json_str;
+  int fd, ret, wpos, wsize;
+
+  if(!obj) {
+    mc_error("json_object_to_file: object is null\n");
+    return -1;
+  }
+
+  if((fd = open(filename, O_WRONLY | O_TRUNC | O_CREAT, 0644)) < 0) {
+    mc_error("json_object_to_file: error opening file %s: %s\n",
+	     filename, strerror(errno));
+    return -1;
+  }
+  if(!(json_str = json_object_to_json_string(obj))) return -1;
+  wsize = strlen(json_str);
+  wpos = 0;
+  while(wpos < wsize) {
+    if((ret = write(fd, json_str + wpos, wsize-wpos)) < 0) {
+      close(fd);
+      mc_error("json_object_to_file: error writing file %s: %s\n",
+	     filename, strerror(errno));
+      return -1;
+    }
+    wpos += ret;
+  }
+
+  close(fd);
+  return 0;
+}
-- 
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