See the patch, attached. It changes the default angle to 90, and

[rrdtool.git] / src / rrd_restore.c

diff --git a/src/rrd_restore.c b/src/rrd_restore.c
index fa5e412..89f34c2 100644 (file)
--- a/src/rrd_restore.c
+++ b/src/rrd_restore.c
@@ -6,6 +6,7 @@
 
 #include "rrd_tool.h"
 #include "rrd_rpncalc.h"
+#include <fcntl.h>
 
 /* Prototypes */
 
@@ -14,7 +15,7 @@ int skip(char **);
 int eat_tag(char **, char *);
 int read_tag(char **, char *, char *, void *);
 int xml2rrd(char*, rrd_t*, char);
-int rrd_write(char *, rrd_t *);
+int rrd_write(char *, rrd_t *, char);
 void parse_patch1028_RRA_params(char **buf, rrd_t *rrd, int rra_index);
 void parse_patch1028_CDP_params(char **buf, rrd_t *rrd, int rra_index, int ds_index);
 void parse_FAILURES_history(char **buf, rrd_t *rrd, int rra_index, int ds_index);
@@ -121,10 +122,16 @@ int xml2rrd(char* buf, rrd_t* rrd, char rc){
   strcpy(rrd->stat_head->cookie,RRD_COOKIE);
   read_tag(&ptr,"version","%4[0-9]",rrd->stat_head->version);
   /* added primitive version checking */
-  if (atoi(rrd -> stat_head -> version) != 2)
+  if (atoi(rrd -> stat_head -> version) > atoi(RRD_VERSION) )
   {
-    rrd_set_error("Incompatible file version, detected version %s, required version %s\n",
-                 rrd -> stat_head -> version, RRD_VERSION);
+    rrd_set_error("Incompatible file version, detected version %s is bigger than supported version %s\n",
+                 rrd -> stat_head -> version, RRD_VERSION );
+    free(rrd -> stat_head);
+    return -1;
+  }
+  if (atoi(rrd -> stat_head -> version) < 2) 
+  {
+    rrd_set_error("Can only restore version >= 2 (Not %s). Dump your rrd using a current rrdtool dump.",  rrd -> stat_head -> version );
     free(rrd -> stat_head);
     return -1;
   }
@@ -398,18 +405,27 @@ int xml2rrd(char* buf, rrd_t* rrd, char rc){
 /* create and empty rrd file according to the specs given */
 
 int
-rrd_write(char *file_name, rrd_t *rrd)
+rrd_write(char *file_name, rrd_t *rrd, char force_overwrite)
 {
     unsigned long    i,ii,val_cnt;
     FILE             *rrd_file=NULL;
+    int                        fdflags;
+    int                        fd;
 
     if (strcmp("-",file_name)==0){
-      *rrd_file= *stdout;
+      rrd_file= stdout;
     } else {
-      int fd = open(file_name,O_RDWR|O_CREAT|O_EXCL);
+#ifdef WIN32
+      fdflags = O_RDWR|O_BINARY|O_CREAT|O_EXCL;
+#else
+      fdflags = O_WRONLY|O_CREAT|O_EXCL;
+#endif            
+      if (force_overwrite == 0) {
+       fdflags |= O_EXCL;
+      }
+      fd = open(file_name,fdflags,0666);
       if (fd == -1 || (rrd_file = fdopen(fd,"wb")) == NULL) {
-       rrd_set_error("creating '%s': %s",file_name,strerror(errno));
-       rrd_free(rrd);
+       rrd_set_error("creating '%s': %s",file_name,rrd_strerror(errno));
         if (fd != -1)
           close(fd);
        return(-1);
@@ -423,8 +439,12 @@ rrd_write(char *file_name, rrd_t *rrd)
 
     fwrite(rrd->rra_def,
           sizeof(rra_def_t), rrd->stat_head->rra_cnt, rrd_file);
-    
-    fwrite(rrd->live_head, sizeof(live_head_t),1, rrd_file);
+
+        /* maybe the xml hold an old formatted rrd */
+    if (atoi(rrd->stat_head->version) < 3)
+      fwrite(&(rrd->live_head->last_up), sizeof(long),1, rrd_file);
+    else
+      fwrite(rrd->live_head, sizeof(live_head_t),1, rrd_file);
 
     fwrite( rrd->pdp_prep, sizeof(pdp_prep_t),rrd->stat_head->ds_cnt,rrd_file);
     
@@ -459,11 +479,12 @@ rrd_restore(int argc, char **argv)
     rrd_t          rrd;
     char          *buf;
        char                    rc = 0;
+       char                    force_overwrite = 0;    
 
     /* init rrd clean */
     rrd_init(&rrd);
     if (argc<3) {
-               rrd_set_error("usage rrdtool %s [--range-check/-r] file.xml file.rrd",argv[0]);
+               rrd_set_error("usage rrdtool %s [--range-check/-r] [--force-overwrite/-f] file.xml file.rrd",argv[0]);
                return -1;
     }
        
@@ -471,13 +492,14 @@ rrd_restore(int argc, char **argv)
                static struct option long_options[] =
                {
                        {"range-check",      required_argument, 0,  'r'},
+                       {"force-overwrite",     required_argument, 0,   'f'},
                        {0,0,0,0}
                };
                int option_index = 0;
                int opt;
                
                
-               opt = getopt_long(argc, argv, "r", long_options, &option_index);
+               opt = getopt_long(argc, argv, "r:f", long_options, &option_index);
                
                if (opt == EOF)
                        break;
@@ -486,9 +508,12 @@ rrd_restore(int argc, char **argv)
                case 'r':
                        rc=1;
                        break;
+               case 'f':
+                       force_overwrite=1;
+                       break;
                default:
-                       rrd_set_error("usage rrdtool %s [--range-check|-r] file.xml file.rrd",argv[0]);
-       return -1;
+                       rrd_set_error("usage rrdtool %s [--range-check|-r] [--force-overwrite/-f]  file.xml file.rrd",argv[0]);
+                       return -1;
                        break;
                }
     }
@@ -502,7 +527,7 @@ rrd_restore(int argc, char **argv)
        return -1;
     }
     free(buf);
-    if(rrd_write(argv[optind+1],&rrd)==-1){
+    if(rrd_write(argv[optind+1],&rrd,force_overwrite)==-1){
        rrd_free(&rrd); 
        return -1;      
     };
@@ -512,6 +537,7 @@ rrd_restore(int argc, char **argv)
 
 /* a backwards compatibility routine that will parse the RRA params section
  * generated by the aberrant patch to 1.0.28. */
+
 void
 parse_patch1028_RRA_params(char **buf, rrd_t *rrd, int rra_index)
 {
@@ -556,7 +582,7 @@ parse_FAILURES_history(char **buf, rrd_t *rrd, int rra_index, int ds_index)
 {
    char history[MAX_FAILURES_WINDOW_LEN + 1];
    char *violations_array;
-   short i;
+   unsigned short i;
 
    /* 28 = MAX_FAILURES_WINDOW_LEN */ 
    read_tag(buf, "history", "%28[0-1]", history);