New option -compare

2008-02-26 21:45:28 +00:00 · 2008-02-26 21:45:28 +00:00 · 3f039e4b08
parent dd4dd5e1e8
commit 3f039e4b08
5 changed files with 272 additions and 63 deletions
--- a/xorriso/xorriso.1
+++ b/xorriso/xorriso.1
@ -1249,6 +1249,17 @@ This is subject to the settings of -follow.
 -findx accepts the -exec actions as does -find. But it will
 always perform action "echo".
 .TP
+\fB\-compare\fR disk_path iso_rr_path
+Compare attributes and eventual data file content of a fileobject in the
+local filesystem with a file object in the ISO image. That iso_rr_path may
+well point to a image file object which is not yet committed, i.e. of which
+the data content still resides in the local filesystem. Such data content is
+prone to externally caused changes.
+.br
+Differing attributes are reported in detail, differing content is summarized.
+Both to the result channel. In case of no differences no result lines are
+emitted.
+.TP
 .B Command compatibility emulations:
 .PP
 Writing of ISO 9660 on CD is traditionally done by program mkisofs
--- a/xorriso/xorriso.c
+++ b/xorriso/xorriso.c
@ -1474,6 +1474,45 @@ char *Ftimetxt(time_t t, char timetext[40], int flag)
 }


+/* @param flag bit0= single letters */
+char *Ftypetxt(mode_t st_mode, int flag)
+{
+ if(flag&1)
+   goto single_letters;
+ if(S_ISDIR(st_mode))
+   return("directory");
+ else if(S_ISREG(st_mode))
+   return("regular_file");
+ else if(S_ISLNK(st_mode))
+   return("symbolic_link");
+ else if(S_ISBLK(st_mode))
+   return("block_device");
+ else if(S_ISCHR(st_mode))
+   return("char_device");
+ else if(S_ISFIFO(st_mode))
+   return("name_pipe");
+ else if(S_ISSOCK(st_mode))
+   return("unix_socket");
+ return("unknown");
+single_letters:;
+ if(S_ISDIR(st_mode))
+   return("d");
+ else if(S_ISREG(st_mode))
+   return("-");
+ else if(S_ISLNK(st_mode))
+   return("l");
+ else if(S_ISBLK(st_mode))
+   return("b");
+ else if(S_ISCHR(st_mode))
+   return("c");
+ else if(S_ISFIFO(st_mode))
+   return("p");
+ else if(S_ISSOCK(st_mode))
+   return("s");
+ return("?");
+}
+
+
 /* ------------------------------------------------------------------------ */


@ -4150,53 +4189,44 @@ much_too_long:;

 /* @param flag bit0= compare atime
               bit1= compare ctime
+              bit30= omit adr_common_tail in report messages
              bit31= do not issue result messages
   @return     1=files match properly , 0=difference detected , -1=error
 */
-int Xorriso_compare_2_files(struct XorrisO *xorriso, char *adr1, char *adr2,
-                            char *adr_common_tail, int flag)
+int Xorriso_compare_2_files(struct XorrisO *xorriso, char *disk_adr,
+                            char *iso_adr, char *adr_common_tail, int flag)
 {
 struct stat s1, s2;
- int ret, differs= 0, r1, r2, fd1= -1, fd2= -1, i, done;
+ int ret, differs= 0, r1, r2, fd1= -1, i, done, wanted;
+ void *stream2= NULL;
 char *respt;
- char buf1[SfileadrL], buf2[SfileadrL], a[5*SfileadrL], sfe[5*SfileadrL];
+ char buf1[32*1024], buf2[32*1024], a[5*SfileadrL], sfe[5*SfileadrL];
+ char ttx1[40], ttx2[40];
 off_t r1count= 0, r2count= 0, diffcount= 0, first_diff= -1;

 respt= xorriso->result_line;
- ret= lstat(adr1, &s1);
+ ret= lstat(disk_adr, &s1);
 if(ret==-1) {
   sprintf(respt , "? %s : cannot lstat() : %s",
-           Text_shellsafe(adr1, sfe, 0), strerror(errno));
+           Text_shellsafe(disk_adr, sfe, 0), strerror(errno));
   if(!(flag&(1<<31)))
     Xorriso_result(xorriso,0);
   return(0);
 }
- if(S_ISDIR(s1.st_mode))
-   strcpy(a, "d");
- else if(S_ISREG(s1.st_mode))
-   strcpy(a, "-");
- else if(S_ISLNK(s1.st_mode))
-   strcpy(a, "l");
- else if(S_ISBLK(s1.st_mode))
-   strcpy(a, "b");
- else if(S_ISCHR(s1.st_mode))
-   strcpy(a, "c");
- else if(S_ISFIFO(s1.st_mode))
-   strcpy(a, "p");
- else if(S_ISSOCK(s1.st_mode))
-   strcpy(a, "s");
- else
-   strcpy(a, "?");
+ strcpy(a, Ftypetxt(s1.st_mode, 1));  
 strcat(a, " ");
 if(adr_common_tail[0])
   sprintf(a, Text_shellsafe(adr_common_tail, sfe, 0));
 else
   strcat(a, "'.'");
+ strcat(a, " :");
+ if(flag&(1<<30))
+   a[0]= 0;

- ret= Xorriso_iso_lstat(xorriso, adr2, &s2, 0);
+ ret= Xorriso_iso_lstat(xorriso, iso_adr, &s2, 0);
 if(ret==-1) {
-   sprintf(respt, "? %s : cannot lstat() : %s\n",
-           Text_shellsafe(adr2, sfe, 0), strerror(errno));
+   sprintf(respt, "? %s  (ISO) : cannot find this file in ISO image\n",
+           Text_shellsafe(iso_adr, sfe, 0));
   if(!(flag&(1<<31)))
     Xorriso_result(xorriso,0);
   return(0);
@ -4204,20 +4234,28 @@ int Xorriso_compare_2_files(struct XorrisO *xorriso, char *adr1, char *adr2,

 /* Attributes */
 if(s1.st_mode != s2.st_mode) {
-   sprintf(respt, "%s : st_mode :  %7.7o  <>  %7.7o\n",
-           a, s1.st_mode, s2.st_mode);
-   if(!(flag&(1<<31)))
-     Xorriso_result(xorriso,0);
+   if((s1.st_mode&~S_IFMT)!=(s2.st_mode&~S_IFMT)) {
+     sprintf(respt, "%s st_mode  :  %7.7o  <>  %7.7o\n",
+             a, s1.st_mode, s2.st_mode);
+     if(!(flag&(1<<31)))
+       Xorriso_result(xorriso,0);
+   }
+   if((s1.st_mode&S_IFMT)!=(s2.st_mode&S_IFMT)) {
+     sprintf(respt, "%s type     :  %s  <>  %s\n",
+             a, Ftypetxt(s1.st_mode, 0), Ftypetxt(s2.st_mode, 0));
+     if(!(flag&(1<<31)))
+       Xorriso_result(xorriso,0);
+   }
   differs= 1;
 }
 if(s1.st_uid != s2.st_uid) {
-   sprintf(respt, "%s : st_uid :   %d  <>  %d\n", a, s1.st_uid, s2.st_uid);
+   sprintf(respt, "%s st_uid   :   %d  <>  %d\n", a, s1.st_uid, s2.st_uid);
   if(!(flag&(1<<31)))
     Xorriso_result(xorriso,0);
   differs= 1;
 }
 if(s1.st_gid != s2.st_gid) {
-   sprintf(respt, "%s : st_gid :   %d  <>  %d\n", a, s1.st_gid, s2.st_gid);
+   sprintf(respt, "%s st_gid   :   %d  <>  %d\n", a, s1.st_gid, s2.st_gid);
   if(!(flag&(1<<31)))
     Xorriso_result(xorriso,0);
   differs= 1;
@ -4225,7 +4263,7 @@ int Xorriso_compare_2_files(struct XorrisO *xorriso, char *adr1, char *adr2,
 if((S_ISCHR(s1.st_mode) && S_ISCHR(s2.st_mode)) ||
    (S_ISBLK(s1.st_mode) && S_ISBLK(s2.st_mode))) {
   if(s1.st_rdev != s2.st_rdev) {
-     sprintf(respt, "%s : %s st_rdev :  %lu  <>  %lu\n", a,
+     sprintf(respt, "%s %s st_rdev  :  %lu  <>  %lu\n", a,
            (S_ISCHR(s1.st_mode) ? "S_IFCHR" : "S_IFBLK"),
            (unsigned long) s1.st_rdev, (unsigned long) s1.st_rdev);
     if(!(flag&(1<<31)))
@ -4234,23 +4272,28 @@ int Xorriso_compare_2_files(struct XorrisO *xorriso, char *adr1, char *adr2,
   }
 }
 if(S_ISREG(s2.st_mode) && s1.st_size != s2.st_size) {
-   sprintf(respt, "%s : st_size :  %.f  <>  %.f\n",
-          a, (double) s1.st_size, (double) s2.st_size);
+   sprintf(respt, "%s st_size  :  %.f  <>  %.f      diff= %.f\n",
+          a, (double) s1.st_size, (double) s2.st_size,
+          ((double) s1.st_size) - (double) s2.st_size);
   if(!(flag&(1<<31)))
     Xorriso_result(xorriso,0);
   differs= 1;
 }
 if(s1.st_mtime != s2.st_mtime) {
-   sprintf(respt, "%s : st_mtime :  %u  <>  %u\n",
-          a, (unsigned int) s1.st_mtime, (unsigned int) s2.st_mtime);
+   sprintf(respt, "%s st_mtime :  %s  <>  %s      diff= %.f s\n",
+           a, Ftimetxt(s1.st_mtime, ttx1, 0),
+              Ftimetxt(s2.st_mtime, ttx2, 0),
+              ((double) s1.st_mtime) - (double) s2.st_mtime);
   if(!(flag&(1<<31)))
     Xorriso_result(xorriso,0);
   differs= 1;
 }
 if(flag&1) {
   if(s1.st_atime != s2.st_atime) {
-     sprintf(respt, "%s : st_atime :  %u  <>  %u\n",
-            a, (unsigned int) s1.st_atime, (unsigned int) s2.st_atime);
+     sprintf(respt, "%s st_atime :  %s  <>  %s      diff= %.f s\n",
+             a, Ftimetxt(s1.st_atime, ttx1, 0), 
+                Ftimetxt(s2.st_atime, ttx2, 0),
+                ((double) s1.st_atime) - (double) s2.st_atime);
     if(!(flag&(1<<31)))
       Xorriso_result(xorriso,0);
     differs= 1;
@ -4258,27 +4301,28 @@ int Xorriso_compare_2_files(struct XorrisO *xorriso, char *adr1, char *adr2,
 }
 if(flag&2) {
   if(s1.st_ctime != s2.st_ctime) {
-     sprintf(respt, "%s : st_ctime :  %u  <>  %u\n",
-            a, (unsigned int) s1.st_ctime, (unsigned int) s2.st_ctime);
+     sprintf(respt, "%s st_ctime :  %s  <>  %s      diff= %.f s\n",
+             a, Ftimetxt(s1.st_ctime, ttx1, 0),
+                Ftimetxt(s2.st_ctime, ttx2, 0),
+                ((double) s1.st_ctime) - (double) s2.st_ctime);
     if(!(flag&(1<<31)))
       Xorriso_result(xorriso,0);
     differs= 1;
   }
 }
- if(S_ISREG(s1.st_mode)) {
-   fd1= open(adr1, O_RDONLY);
+ if(S_ISREG(s1.st_mode) && S_ISREG(s2.st_mode)) {
+   fd1= open(disk_adr, O_RDONLY);
   if(fd1==-1) {
-     sprintf(respt, "- %s : cannot open() : %s\n", adr1, strerror(errno));
+     sprintf(respt, "- %s (DISK) : cannot open() : %s\n",
+             disk_adr, strerror(errno));
     if(!(flag&(1<<31)))
       Xorriso_result(xorriso,0);
     return(0);
   }

-/* >>> */
- 
-   fd2= open(adr2, O_RDONLY);
-   if(fd2==-1) {
-     sprintf(respt, "- %s : cannot open() : %s\n", adr2, strerror(errno));
+   ret= Xorriso_iso_file_open(xorriso, iso_adr, &stream2, 0);
+   if(ret<=0) {
+     sprintf(respt, "- %s  (ISO) : cannot open() file in ISO image\n",iso_adr);
     if(!(flag&(1<<31)))
       Xorriso_result(xorriso,0);
     close(fd1);
@ -4288,16 +4332,35 @@ int Xorriso_compare_2_files(struct XorrisO *xorriso, char *adr1, char *adr2,
   /* Content */
   done= 0;
   while(!done) {
+
+     /* fd1 is a regular file and should deliver full buffers */
     r1= read(fd1, buf1, sizeof(buf1));
-     r2= read(fd2, buf2, sizeof(buf2));
+
+     wanted= sizeof(buf2);
+
+/*
+#define Libisofs_data_read_as_posiX yes
+*/
+#ifndef Libisofs_data_read_as_posiX
+     /* This functions guarantees to deliver full buffers but fails on
+        oversized read requests. */
+     if(r2count+wanted>s2.st_size)
+       wanted= s2.st_size-r2count;
+#endif
+
+     if(wanted>0)
+       r2= Xorriso_iso_file_read(xorriso, stream2, buf2, wanted, 0);
+     else
+       r2= 0;
+
     if((r1==EOF && r2==EOF) || (r1==0 && r2==0))
   break;
     if(r1==EOF || r1==0) {
       if(r1==EOF)
         r1= 0;
       if(s1.st_size > r1count + r1) {
-         sprintf(respt, "- %s : early EOF after %.f bytes\n",
-                 adr1, (double) r1count);
+         sprintf(respt, "- %s (DISK) : early EOF after %.f bytes\n",
+                 disk_adr, (double) r1count);
         if(!(flag&(1<<31)))
           Xorriso_result(xorriso,0);
       }
@ -4308,8 +4371,8 @@ int Xorriso_compare_2_files(struct XorrisO *xorriso, char *adr1, char *adr2,
       if(r2==EOF)
         r2= 0;
       if(s2.st_size > r2count + r2) {
-         sprintf(respt, "- %s : early EOF after %.f bytes\n",
-                 adr2, (double) r2count);
+         sprintf(respt, "- %s  (ISO) : early EOF after %.f bytes\n",
+                 iso_adr, (double) r2count);
         if(!(flag&(1<<31)))
         Xorriso_result(xorriso,0);
       }
@ -4318,8 +4381,8 @@ int Xorriso_compare_2_files(struct XorrisO *xorriso, char *adr1, char *adr2,
     }
     if(r2>r1) {
       if(s1.st_size > r1count + r1) {
-         sprintf(respt, "- %s : early EOF after %.f bytes\n",
-                 adr1, (double) r1count);
+         sprintf(respt, "- %s (DISK) : early EOF after %.f bytes\n",
+                 disk_adr, (double) r1count);
         if(!(flag&(1<<31)))
           Xorriso_result(xorriso,0);
       }
@ -4340,7 +4403,7 @@ int Xorriso_compare_2_files(struct XorrisO *xorriso, char *adr1, char *adr2,
   if(diffcount>0 || r1count!=r2count) {
     if(first_diff<0)
       first_diff= (r1count>r2count ? r2count : r1count);
-     sprintf(respt, "%s : %s : differs by at least %.f bytes. First at %.f\n",
+     sprintf(respt, "%s %s  :  differs by at least %.f bytes. First at %.f\n",
             a, (s1.st_mtime==s2.st_mtime ?  "CONTENT": "content"),
             (double) (diffcount + abs(r1count-r2count)), (double) first_diff);
     if(!(flag&(1<<31)))
@ -4350,8 +4413,7 @@ int Xorriso_compare_2_files(struct XorrisO *xorriso, char *adr1, char *adr2,
 }
 if(fd1!=-1)
   close(fd1);
- if(fd2!=-1)
-   close(fd2);
+ Xorriso_iso_file_close(xorriso, &stream2, 0);
 return(!differs);
 }

@ -5720,6 +5782,7 @@ int Xorriso_format_ls_l(struct XorrisO *xorriso, struct stat *stbuf, int flag)

 #ifndef NIX
 Ftimetxt(stbuf->st_mtime, rpt+strlen(rpt), 0);
+ strcat(rpt, " ");
 #else
 mtime= stbuf->st_mtime;
 tmpt= localtime_r(&mtime, &tms);
@ -7559,6 +7622,36 @@ int Xorriso_option_commit_eject(struct XorrisO *xorriso, char *which, int flag)
 }


+/* Option -compare
+   @param flag bit0= issue summary message
+*/
+int Xorriso_option_compare(struct XorrisO *xorriso, char *disk_path,
+                           char *iso_path, int flag)
+{
+ int ret;
+ char *ipth;
+
+ ipth= iso_path;
+ if(ipth[0]==0)
+   ipth= disk_path;
+
+ ret= Xorriso_compare_2_files(xorriso, disk_path, ipth, "", 2|(1<<30));
+ if(ret>0) {
+   sprintf(xorriso->result_line,
+           "Ok. Both files match as far as expectable.\n");
+ } else if(ret==0) {
+   sprintf(xorriso->result_line, "Not ok. Differences detected.\n");
+ } else {
+   sprintf(xorriso->result_line, "Not ok. Comparison failed due to error.\n");
+ }
+ if(flag&1)
+   Xorriso_result(xorriso,0);
+ if(ret<0)
+   return(ret);
+ return(1);
+}
+
+
 /* Option -cpr alias -cpri */
 int Xorriso_option_cpri(struct XorrisO *xorriso, int argc, char **argv,
                         int *idx, int flag)
@ -8371,6 +8464,9 @@ int Xorriso_option_help(struct XorrisO *xorriso, int flag)
 "  -findx disk_path [-name pattern]  like -find but in local filesystem.",
 "                 Any -exec option is ignored. Action is always echo.",
 "",
+"  -compare disk_path iso_rr_path   compare attributes and in case of regular",
+"                 data files the content of filesystem object and ISO object.",
+"",
 "Compatibility emulation (argument list may be ended by --):",
 "  -as mkisofs  [-help|-o|-R|-J|-V|-P|-f|-graft-points|-path-list|pathspecs]",
 "              Perform some mkisofs gestures, understand pathspecs as mkisofs",
@ -9745,6 +9841,10 @@ next_command:;
   (*idx)++;
   ret= Xorriso_option_commit_eject(xorriso, arg1, 0);

+ } else if(strcmp(cmd,"compare")==0) {
+   (*idx)+= 2;
+   ret= Xorriso_option_compare(xorriso, arg1, arg2, 1);
+
 } else if(strcmp(cmd,"cpr")==0 || strcmp(cmd,"cpri")==0) {
   ret= Xorriso_option_cpri(xorriso, argc, argv, idx, 0);

--- a/xorriso/xorriso_timestamp.h
+++ b/xorriso/xorriso_timestamp.h
@ -1 +1 @@
-#define Xorriso_timestamP "2008.02.25.204402"
+#define Xorriso_timestamP "2008.02.26.213437"
--- a/xorriso/xorrisoburn.c
+++ b/xorriso/xorrisoburn.c
@ -2858,7 +2858,9 @@ ex:;
 }


-/* @param flag bit0= *node is already valid */
+/* @param flag bit0= *node is already valid
+               bit1= add extra block for size estimation
+*/
 int Xorriso_fake_stbuf(struct XorrisO *xorriso, char *path, struct stat *stbuf,
                       IsoNode **node, int flag)
 {
@ -2909,7 +2911,7 @@ int Xorriso_fake_stbuf(struct XorrisO *xorriso, char *path, struct stat *stbuf,
 /* >>> stbuf->st_rdev */

 if(LIBISO_ISREG(*node))
-   stbuf->st_size= iso_file_get_size((IsoFile *) *node)+2048;
+   stbuf->st_size= iso_file_get_size((IsoFile *) *node)+ (2048 * !!(flag&2));
 else
   stbuf->st_size= 0;

@ -3054,7 +3056,7 @@ int Xorriso_ls_filev(struct XorrisO *xorriso, char *wd,
   ret= Xorriso_make_abs_adr(xorriso, wd, filev[i], path, 1|2|4);
   if(ret<=0)
 continue;
-   ret= Xorriso_fake_stbuf(xorriso, path, &stbuf, &node, 0);
+   ret= Xorriso_fake_stbuf(xorriso, path, &stbuf, &node, (flag&4)>>1);
   if(ret<=0)
 continue;
   if(LIBISO_ISDIR(node)  && !(flag&(4|8))) {
@ -4254,5 +4256,92 @@ int Xorriso_get_profile(struct XorrisO *xorriso, int *profile_number,
 if(*profile_number==0x08 || *profile_number==0x09 || *profile_number==0x0a)
   return(2);
 return(0);
- 
 }
+
+
+int Xorriso_iso_file_open(struct XorrisO *xorriso, char *pathname,
+                          void **stream, int flag)
+{
+ int ret;
+ char eff_path[SfileadrL];
+ IsoNode *node= NULL;
+ IsoFile *filenode= NULL;
+ IsoStream *iso_stream= NULL;
+
+ *stream= NULL;
+ ret= Xorriso_get_node_by_path(xorriso, pathname, eff_path, &node, 0);
+ if(ret<=0)
+   return(ret);
+ if(!LIBISO_ISREG(node)) {
+   sprintf(xorriso->info_text,
+           "Given path does not lead to a regular data file in the image");
+   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
+   return(0);
+ }
+ filenode= (IsoFile *) node;
+ iso_stream= iso_file_get_stream(filenode);
+ if(iso_stream==NULL) {
+   Xorriso_process_msg_queues(xorriso,0);
+   sprintf(xorriso->info_text,
+           "Could not obtain source stream of file in the image for reading");
+   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
+   return(0);
+ }
+ ret= iso_stream_open(iso_stream);
+ if(ret<0) {
+   sprintf(xorriso->info_text,
+           "Could not open data file in the image for reading");
+   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
+   return(0);
+ }
+ if(!iso_stream_is_repeatable(iso_stream)) {
+   sprintf(xorriso->info_text,
+           "The data production of the file in the image is one-time only");
+   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "FAILURE", 0);
+   iso_stream_close(iso_stream);
+   return(0);
+ }
+ Xorriso_process_msg_queues(xorriso,0);
+ *stream= iso_stream;
+ return(1);
+}
+
+
+int Xorriso_iso_file_read(struct XorrisO *xorriso, void *stream, char *buf,
+                          int count, int flag)
+{
+ int ret, rcnt= 0;
+ IsoStream *stream_pt;
+
+ stream_pt= (IsoStream *) stream;
+
+ while(rcnt<count) {
+   ret= iso_stream_read(stream_pt, (void *) (buf+rcnt), (size_t) (count-rcnt));
+   if(ret==0) /* EOF */
+ break;
+   if(ret<0) { /* error */
+     Xorriso_process_msg_queues(xorriso,0);
+     Xorriso_report_iso_error(xorriso, "", ret, "Error on read",
+                              0, "FAILURE",1);
+     return(-1);
+   }
+   rcnt+= ret;
+ }
+ return(rcnt);
+}
+
+
+int Xorriso_iso_file_close(struct XorrisO *xorriso, void **stream, int flag)
+{
+ int ret;
+
+ if(*stream==NULL)
+   return(0);
+ ret= iso_stream_close(*stream);
+ if(ret==1)
+   *stream= NULL;
+ Xorriso_process_msg_queues(xorriso,0);
+ return(ret);
+}
+
+
--- a/xorriso/xorrisoburn.h
+++ b/xorriso/xorrisoburn.h
@ -166,5 +166,14 @@ int Xorriso_get_profile(struct XorrisO *xorriso, int *profile_number,
 int Xorriso_set_publisher(struct XorrisO *xorriso, char *name, int flag);


+int Xorriso_iso_file_open(struct XorrisO *xorriso, char *pathname,
+                          void **stream, int flag);
+
+int Xorriso_iso_file_read(struct XorrisO *xorriso, void *stream, char *buf,
+                          int count, int flag);
+
+int Xorriso_iso_file_close(struct XorrisO *xorriso, void **stream, int flag);
+
+
 #endif /* Xorrisoburn_includeD */