Implemented reassure for -rollback, -rollback_end, -end, -commit, -commit_eject

xorriso/xorriso.1

@@ -2,7 +2,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.TH XORRISO 1 "February 3, 2008"
+.TH XORRISO 1 "February 5, 2008"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
@@ -950,8 +950,8 @@ For images which will never get to a CD it is safe to use -padding 0 .
 Set the threshold for events to abort the program.
 Events are classified by severity :
 .br
-  "NEVER", "ABORT", "FATAL", "SORRY", "WARNING",
+  "NEVER", "ABORT", "FATAL", "FAILURE" , "SORRY",
-  "HINT", "NOTE", "UPDATE", "DEBUG", "ALL"
+  "WARNING", "HINT", "NOTE", "UPDATE", "DEBUG", "ALL"
 .br
 Severities "NEVER" and "ALL" do not occur but mark the extreme
 ends of this potentially expandable range.
@@ -1002,8 +1002,16 @@ If "on" then use readline for dialog. Else use plain stdin.
 See also above, paragraph Dialog, Readline, Result pager.
 .TP
 \fB\-reassure\fR "on"|"tree"|"off"
-If "on" then ask the user for "y" or "n" 
+If "on" then ask the user for "y" or "n":
-before deleting or overwriting any file in the ISO image.
+.br
+before deleting or overwriting any file in the ISO image,
+.br
+before rolling back pending image changes,
+.br
+before committing image changes to media,
+.br
+before ending the program.
+.br
 With setting "tree" the reassuring prompt will appear for an eventual
 directory only once and not for each file in its whole subtree.
 Setting "off" silently kills any kind of image file object.

xorriso/xorriso.c

@@ -5954,6 +5954,35 @@ ex:;
  return(ret);
 }
 
+
+/** @return -1= abort , 0= no , 1= yes
+*/
+int Xorriso_reassure(struct XorrisO *xorriso, char *cmd, char *which_will,
+                     int flag)
+{
+ int ret;
+
+ sprintf(xorriso->info_text, "Really perform %s which will %s ? (y/n)\n",
+         cmd, which_will);
+ Xorriso_info(xorriso, 4);
+ do {
+   ret= Xorriso_request_confirmation(xorriso, 2|4|16);
+ } while(ret==3);
+ if(ret==6 || ret==4) {
+   sprintf(xorriso->info_text, "%s confirmed", cmd);
+   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
+   return(1);
+ }
+ if(ret==2) {
+   sprintf(xorriso->info_text, "%s aborted", cmd);
+   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
+   return(-1);
+ }
+ sprintf(xorriso->info_text, "%s revoked", cmd);
+ Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
+ return(0);
+}
+
  
 /* ---------------------------- Options API ------------------------ */
 
@@ -6502,6 +6531,8 @@ int Xorriso_option_close(struct XorrisO *xorriso, char *mode, int flag)
 /* Option -commit */
 /* @param flag bit0= leave indrive and outdrive aquired as they were,
                      i.e. do not aquire outdrive as new in-out-drive
+               bit1= do not perform eventual -reassure
+   @return <=0 error , 1 success, 2 revoked by -reassure , 3 no change pending
 */
 int Xorriso_option_commit(struct XorrisO *xorriso, int flag)
 {
@@ -6509,9 +6540,15 @@ int Xorriso_option_commit(struct XorrisO *xorriso, int flag)
  char newdev[SfileadrL];
 
  if(!xorriso->volset_change_pending) {
-   sprintf(xorriso->info_text,"-commit: No image modifications pending");
+   sprintf(xorriso->info_text, "-commit: No image modifications pending");
    Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "WARNING", 0);
-   return(2);
+   return(3);
+ }
+ if(!(flag&2)) {
+   ret= Xorriso_reassure(xorriso, "-commit",
+                         "write the pending image changes to media", 0);
+   if(ret<=0)
+     return(2);
  }
  ret= Xorriso_write_session(xorriso, 0);
  if(ret<=0)
@@ -6525,13 +6562,15 @@ int Xorriso_option_commit(struct XorrisO *xorriso, int flag)
 }
 
 
-/* Option -commit_eject  */
+/* Option -commit_eject */
+/* @return <=0 error , 1 success, 2 revoked by -reassure
+*/
 int Xorriso_option_commit_eject(struct XorrisO *xorriso, char *which, int flag)
 {
  int ret, eret;
 
  ret= Xorriso_option_commit(xorriso, 1);
- if(ret<=0)
+ if(ret<=0 || ret==2)
    return(ret);
  if(strcmp(which, "none")==0 || strcmp(which, "")==0)
    eret= 1;
@@ -6772,10 +6811,29 @@ int Xorriso_option_eject(struct XorrisO *xorriso, char *which, int flag)
 
 
 /* Options -end , and -rollback_end */
-/* @param flag bit0= discard pending changes */
+/* @param flag bit0= discard pending changes
+   @return <=0 error , 1 success, 2 revoked by -reassure
+*/
 int Xorriso_option_end(struct XorrisO *xorriso, int flag)
 {
  int ret;
+ char *cmd, *which_will;
+ 
+ if(flag&1)
+   cmd= "-rollback_end";
+ else
+   cmd= "-end";
+ if(xorriso->volset_change_pending) {
+   if(flag&1)
+     which_will= "end the program discarding image changes";
+   else
+     which_will= "commit image changes and then end the program";
+ } else {
+   which_will= "end the program";
+ }
+ ret= Xorriso_reassure(xorriso, cmd, which_will, 0);
+ if(ret<=0)
+   return(2);
 
  if(xorriso->volset_change_pending) {
    if(flag&1) {
@@ -8116,10 +8174,20 @@ ex:;
 
 
 /* Option -rollback */
+/* @return <=0 error , 1 success, 2 revoked by -reassure
+*/
 int Xorriso_option_rollback(struct XorrisO *xorriso, int flag)
 {
  int ret;
- char indev[SfileadrL];
+ char indev[SfileadrL], *which_will;
+
+ if(xorriso->volset_change_pending)
+   which_will= "revoke the pending image changes";
+ else
+   which_will= "reload the image";
+ ret= Xorriso_reassure(xorriso, "-rollback", which_will, 0);
+ if(ret<=0)
+   return(2);
 
  if(Sfile_str(indev, xorriso->indev, 0)<=0)
    return(-1);

xorriso/xorriso.h

@@ -202,10 +202,14 @@ int Xorriso_option_close(struct XorrisO *xorriso, char *mode, int flag);
 /* Option -commit */
 /* @param flag bit0= leave indrive and outdrive aquired as they were,
                      i.e. do not aquire outdrive as new in-out-drive
+               bit1= do not perform eventual -reassure
+   @return <=0 error , 1 success, 2 revoked by -reassure
 */
 int Xorriso_option_commit(struct XorrisO *xorriso, int flag);
 
 /* Option -commit_eject  */
+/* @return <=0 error , 1 success, 2 revoked by -reassure
+*/
 int Xorriso_option_commit_eject(struct XorrisO *xorriso, char *which, int flag);
 
 /* Option -cpr alias -cpri */
@@ -236,7 +240,9 @@ int Xorriso_option_dummy(struct XorrisO *xorriso, char *mode, int flag);
 int Xorriso_option_eject(struct XorrisO *xorriso, char *which, int flag);
 
 /* Options -end , and -rollback_end */
-/* @param flag bit0= discard pending changes */
+/* @param flag bit0= discard pending changes 
+   @return <=0 error , 1 success, 2 revoked by -reassure
+*/
 int Xorriso_option_end(struct XorrisO *xorriso, int flag);
 
 /* Option -iso_rr_pattern "on"|"ls"|"off" */
@@ -359,6 +365,8 @@ int Xorriso_option_rmi(struct XorrisO *xorriso, int argc, char **argv,
                        int *idx, int flag);
 
 /* Option -rollback */
+/* @return <=0 error , 1 success, 2 revoked by -reassure
+*/
 int Xorriso_option_rollback(struct XorrisO *xorriso, int flag);
 
 /* Option -speed */

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2008.02.05.162621"
+#define Xorriso_timestamP "2008.02.05.175733"