450 lines
12 KiB
C
450 lines
12 KiB
C
/* Still missing:
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*
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* Damage counter
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* Change counter
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* Time stamp
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* prefix
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* cmd-line args
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* %100 deltas
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* delta and Add are different. delta -> Equ.
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*
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* mkctm
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* -B regex Bogus
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* -I regex Ignore
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* -D int Damage
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* -v increase verbosity
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* -l str control logging.
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* name cvs-cur
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* prefix src/secure
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* dir1 "Soll"
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* dir2 "Ist"
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*
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*/
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/mman.h>
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#include <sys/wait.h>
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#include <dirent.h>
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#include <regex.h>
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#include <stdio.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <md5.h>
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#include <err.h>
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#include <signal.h>
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#define DEFAULT_IGNORE "/CVS$|/\\.#"
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#define DEFAULT_BOGUS "\\.core$"
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regex_t reg_ignore, reg_bogus;
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int flag_ignore, flag_bogus;
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u_long s1_ignored, s2_ignored;
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u_long s1_bogus, s2_bogus;
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u_long s1_wrong, s2_wrong;
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u_long s_same_dirs, s_same_files, s_same_bytes;
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u_long s_files_chg, s_bytes_add, s_bytes_del;
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u_long s_new_dirs, s_new_files, s_new_bytes;
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u_long s_del_dirs, s_del_files, s_del_bytes;
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u_long s_chg_files, s_chg_bytes;
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u_long s_edit_files, s_edit_bytes, s_edit_saves;
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u_long s_sub_files, s_sub_bytes;
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void
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print_stat(FILE *fd, char *pre)
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{
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fprintf(fd,"%sAvoided:\n",pre);
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fprintf(fd,"%s ignore: %5lu old %5lu new\n",
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pre, s1_ignored, s2_ignored);
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fprintf(fd,"%s bogus: %5lu old %5lu new\n",
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pre, s1_bogus, s2_bogus);
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fprintf(fd,"%s wrong: %5lu old %5lu new\n",
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pre, s1_wrong, s2_wrong);
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fprintf(fd,"%sDelta:\n",pre);
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fprintf(fd,"%s new: %5lu dirs %5lu files %9lu plus\n",
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pre, s_new_dirs, s_new_files, s_new_bytes);
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fprintf(fd,"%s del: %5lu dirs %5lu files %9lu minus\n",
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pre, s_del_dirs, s_del_files, s_del_bytes);
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fprintf(fd,"%s chg: %5lu files %9lu plus %9lu minus\n",
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pre, s_files_chg, s_bytes_add, s_bytes_del);
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fprintf(fd,"%s same: %5lu dirs %5lu files %9lu bytes\n",
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pre, s_same_dirs, s_same_files, s_same_bytes);
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fprintf(fd,"%sMethod:\n",pre);
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fprintf(fd,"%s edit: %5lu files %9lu bytes %9lu saved\n",
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pre, s_edit_files, s_edit_bytes, s_edit_saves);
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fprintf(fd,"%s sub: %5lu files %9lu bytes\n",
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pre, s_sub_files, s_sub_bytes);
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}
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void
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stat_info(int foo)
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{
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signal(SIGINFO,stat_info);
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print_stat(stderr,"INFO: ");
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}
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void DoDir(const char *dir1, const char *dir2, const char *name);
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static struct stat st;
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static __inline struct stat *
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StatFile(char *name)
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{
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if (lstat(name,&st) < 0)
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err(1,"Couldn't stat %s\n",name);
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return &st;
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}
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int
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dirselect(struct dirent *de)
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{
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if (!strcmp(de->d_name,".")) return 0;
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if (!strcmp(de->d_name,"..")) return 0;
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return 1;
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}
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void
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name_stat(const char *pfx, const char *dir, const char *name, struct dirent *de)
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{
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char *buf = alloca(strlen(dir) + strlen(name) +
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strlen(de->d_name) + 3);
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struct stat *st;
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strcpy(buf,dir);
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strcat(buf,"/"); strcat(buf,name);
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strcat(buf,"/"); strcat(buf,de->d_name);
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st = StatFile(buf);
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printf("%s %s%s %lu %lu %o",
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pfx, name, de->d_name,
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st->st_uid, st->st_gid, st->st_mode & ~S_IFMT);
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}
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void
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Equ(const char *dir1, const char *dir2, const char *name, struct dirent *de)
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{
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if (de->d_type == DT_DIR) {
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char *p = alloca(strlen(name)+strlen(de->d_name)+2);
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strcpy(p,name); strcat(p,de->d_name); strcat(p, "/");
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DoDir(dir1,dir2,p);
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s_same_dirs++;
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} else {
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char *buf1 = alloca(strlen(dir1) + strlen(name) +
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strlen(de->d_name) + 3);
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char *buf2 = alloca(strlen(dir2) + strlen(name) +
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strlen(de->d_name) + 3);
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char *m1,md5_1[33],*m2, md5_2[33];
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void *p1,*p2;
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int fd1,fd2;
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struct stat s1,s2;
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strcpy(buf1,dir1);
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strcat(buf1,"/"); strcat(buf1,name);
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strcat(buf1,"/"); strcat(buf1,de->d_name);
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fd1 = open(buf1,O_RDONLY);
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if(fd1 < 0) { perror(buf1); exit(3); }
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fstat(fd1,&s1);
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strcpy(buf2,dir2);
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strcat(buf2,"/"); strcat(buf2,name);
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strcat(buf2,"/"); strcat(buf2,de->d_name);
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fd2 = open(buf2,O_RDONLY);
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if(fd2 < 0) { perror(buf2); exit(3); }
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fstat(fd2,&s2);
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#if 1
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if (s1.st_size == s2.st_size) {
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s_same_files++;
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s_same_bytes += s1.st_size;
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close(fd1);
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close(fd2);
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goto finish;
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}
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#endif
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p1=mmap(0,s1.st_size,PROT_READ,MAP_PRIVATE,fd1,0);
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if ((int)p1 == -1) { perror(buf1); exit(3); }
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close(fd1);
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p2=mmap(0,s2.st_size,PROT_READ,MAP_PRIVATE,fd2,0);
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if ((int)p2 == -1) { perror(buf2); exit(3); }
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close(fd2);
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/* If identical, we're done. */
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if((s1.st_size == s2.st_size) && !memcmp(p1,p2,s1.st_size)) {
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s_same_files++;
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s_same_bytes += s1.st_size;
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goto finish;
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}
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s_files_chg++;
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if (s1.st_size > s2.st_size)
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s_bytes_del += (s1.st_size - s2.st_size);
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else
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s_bytes_add += (s2.st_size - s1.st_size);
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m1 = MD5Data(p1, s1.st_size, md5_1);
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m2 = MD5Data(p2, s2.st_size, md5_2);
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/* Just a curiosity... */
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if(!strcmp(m1,m2)) {
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if (s1.st_size != s2.st_size)
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fprintf(stderr,
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"Notice: MD5 same for files of diffent size:\n\t%s\n\t%s\n",
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buf1,buf2);
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goto finish;
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}
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{
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u_long l = s1.st_size + s2.st_size;
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u_char *ob = alloca(l);
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Dissect(p1,p1+s1.st_size,p2,p2+s2.st_size,ob,&l);
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if (l && l < s2.st_size) {
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name_stat("CTMFB",dir2,name,de);
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printf(" %s %s %d\n",m1,m2,(unsigned)s1.st_size);
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s_edit_files++;
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s_edit_bytes += l;
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s_edit_saves += (s2.st_size - l);
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fwrite(ob,1,l,stdout);
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putchar('\n');
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} else {
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name_stat("CTMFS",dir2,name,de);
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printf(" %s %s %u\n",m1,m2,(unsigned)s2.st_size);
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fwrite(p2,1,s2.st_size,stdout);
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s_sub_files++;
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s_sub_bytes += s2.st_size;
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}
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}
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finish:
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munmap(p1,s1.st_size);
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munmap(p2,s2.st_size);
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}
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}
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void
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Add(const char *dir1, const char *dir2, const char *name, struct dirent *de)
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{
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if (de->d_type == DT_DIR) {
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char *p = alloca(strlen(name)+strlen(de->d_name)+2);
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strcpy(p,name); strcat(p,de->d_name); strcat(p, "/");
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name_stat("CTMDM",dir2,name,de);
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putchar('\n');
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s_new_dirs++;
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DoDir(dir1,dir2,p);
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} else if (de->d_type == DT_REG) {
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char *buf2 = alloca(strlen(dir2) + strlen(name) +
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strlen(de->d_name) + 3);
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char *m2, md5_2[33];
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u_char *p1;
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struct stat st;
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int fd1;
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strcpy(buf2,dir2);
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strcat(buf2,"/"); strcat(buf2,name);
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strcat(buf2,"/"); strcat(buf2,de->d_name);
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fd1 = open(buf2,O_RDONLY);
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if (fd1 < 0) {perror(buf2); exit (3); }
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fstat(fd1,&st);
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p1=mmap(0,st.st_size,PROT_READ,MAP_PRIVATE,fd1,0);
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if ((int)p1 == -1) { perror(buf2); exit(3); }
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close(fd1);
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m2 = MD5Data(p1, st.st_size, md5_2);
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name_stat("CTMFM",dir2,name,de);
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printf(" %s %u\n",m2,(unsigned)st.st_size);
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fwrite(p1,1,st.st_size,stdout);
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putchar('\n');
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munmap(p1,st.st_size);
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s_new_files++;
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s_new_bytes += st.st_size;
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}
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}
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void
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Del (const char *dir1, const char *dir2, const char *name, struct dirent *de)
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{
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if (de->d_type == DT_DIR) {
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char *p = alloca(strlen(name)+strlen(de->d_name)+2);
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strcpy(p,name); strcat(p,de->d_name); strcat(p, "/");
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DoDir(dir1,dir2,p);
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printf("CTMDR %s%s\n",name,de->d_name);
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s_del_dirs++;
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} else if (de->d_type == DT_REG) {
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char *buf1 = alloca(strlen(dir1) + strlen(name) +
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strlen(de->d_name) + 3);
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char *m1, md5_1[33];
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strcpy(buf1,dir1);
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strcat(buf1,"/"); strcat(buf1,name);
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strcat(buf1,"/"); strcat(buf1,de->d_name);
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m1 = MD5File(buf1, md5_1);
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printf("CTMFR %s%s %s\n",name,de->d_name,m1);
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s_del_files++;
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s_del_bytes += StatFile(buf1)->st_size;
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}
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}
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void
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GetNext(int *i, int *n, struct dirent **nl, const char *dir, const char *name, u_long *ignored, u_long *bogus, u_long *wrong)
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{
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char buf[BUFSIZ];
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for (;;) {
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for (;;) {
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(*i)++;
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if (*i >= *n)
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return;
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*buf = 0;
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if (*dir != '/')
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strcat(buf,"/");
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strcat(buf,dir);
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if (buf[strlen(buf)-1] != '/')
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strcat(buf,"/");
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strcat(buf,name);
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if (buf[strlen(buf)-1] != '/')
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strcat(buf,"/");
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fprintf(stderr,">%d<%s>\n",strlen(nl[*i]->d_name),nl[*i]->d_name);
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fflush(stderr);
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strcat(buf,nl[*i]->d_name);
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if (flag_ignore && !regexec(®_ignore,buf,0,0,0))
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(*ignored)++;
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else if (flag_bogus && !regexec(®_bogus,buf,0,0,0))
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(*bogus)++;
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else
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break;
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free(nl[*i]); nl[*i] = 0;
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}
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/* If the filesystem didn't tell us, find type */
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if (nl[*i]->d_type == DT_UNKNOWN)
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nl[*i]->d_type = IFTODT(StatFile(buf)->st_mode);
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if (nl[*i]->d_type == DT_REG || nl[*i]->d_type == DT_DIR)
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break;
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(*wrong)++;
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free(nl[*i]); nl[*i] = 0;
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}
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}
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void
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DoDir(const char *dir1, const char *dir2, const char *name)
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{
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int i1,i2,n1,n2,i;
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struct dirent **nl1,**nl2;
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char *buf1 = alloca(strlen(dir1) + strlen(name) + 4);
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char *buf2 = alloca(strlen(dir2) + strlen(name) + 4);
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strcpy(buf1,dir1); strcat(buf1,"/"); strcat(buf1,name);
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strcpy(buf2,dir2); strcat(buf2,"/"); strcat(buf2,name);
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n1 = scandir(buf1, &nl1, dirselect, alphasort);
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n2 = scandir(buf2, &nl2, dirselect, alphasort);
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i1 = i2 = -1;
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GetNext(&i1, &n1, nl1, dir1, name, &s1_ignored, &s1_bogus, &s1_wrong);
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GetNext(&i2, &n2, nl2, dir2, name, &s2_ignored, &s2_bogus, &s2_wrong);
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for (;i1 < n1 || i2 < n2;) {
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/* Get next item from list 1 */
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if (i1 < n1 && !nl1[i1])
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GetNext(&i1, &n1, nl1, dir1, name,
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&s1_ignored, &s1_bogus, &s1_wrong);
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/* Get next item from list 2 */
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if (i2 < n2 && !nl2[i2])
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GetNext(&i2, &n2, nl2, dir2, name,
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&s2_ignored, &s2_bogus, &s2_wrong);
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if (i1 >= n1 && i2 >= n2) {
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/* Done */
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break;
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} else if (i1 >= n1 && i2 < n2) {
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/* end of list 1, add anything left on list 2 */
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Add(dir1,dir2,name,nl2[i2]);
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free(nl2[i2]); nl2[i2] = 0;
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} else if (i1 < n1 && i2 >= n2) {
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/* end of list 2, delete anything left on list 1 */
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Del(dir1,dir2,name,nl1[i1]);
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free(nl1[i1]); nl1[i1] = 0;
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} else if (!(i = strcmp(nl1[i1]->d_name, nl2[i2]->d_name))) {
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/* Identical names */
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if (nl1[i1]->d_type == nl2[i2]->d_type) {
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/* same type */
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Equ(dir1,dir2,name,nl1[i1]);
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} else {
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/* different types */
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Del(dir1,dir2,name,nl1[i1]);
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Add(dir1,dir2,name,nl2[i2]);
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}
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free(nl1[i1]); nl1[i1] = 0;
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free(nl2[i2]); nl2[i2] = 0;
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} else if (i < 0) {
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/* Something extra in list 1, delete it */
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Del(dir1,dir2,name,nl1[i1]);
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free(nl1[i1]); nl1[i1] = 0;
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} else {
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/* Something extra in list 2, add it */
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Add(dir1,dir2,name,nl2[i2]);
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free(nl2[i2]); nl2[i2] = 0;
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}
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}
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if (n1 >= 0)
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free(nl1);
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if (n2 >= 0)
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free(nl2);
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}
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int
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main(int argc, char **argv)
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{
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int i;
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extern char *optarg;
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extern int optind;
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if (regcomp(®_bogus,DEFAULT_BOGUS, REG_EXTENDED | REG_NEWLINE))
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/* XXX use regerror to explain it */
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err(1,"Default regular expression argument to -B is botched");
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flag_bogus = 1;
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if (regcomp(®_ignore,DEFAULT_IGNORE, REG_EXTENDED | REG_NEWLINE))
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/* XXX use regerror to explain it */
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err(1,"Default regular expression argument to -I is botched");
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flag_ignore = 1;
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while ((i = getopt(argc,argv,"I:B:")) != EOF)
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switch (i) {
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case 'I':
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if (flag_ignore)
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regfree(®_ignore);
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flag_ignore = 0;
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if (!*optarg)
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break;
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if (regcomp(®_ignore,optarg,
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REG_EXTENDED | REG_NEWLINE))
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/* XXX use regerror to explain it */
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err(1,"Regular expression argument to -I is botched");
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flag_ignore = 1;
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break;
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case 'B':
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if (flag_bogus)
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regfree(®_bogus);
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flag_bogus = 0;
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if (!*optarg)
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break;
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if (regcomp(®_bogus,optarg,
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REG_EXTENDED | REG_NEWLINE))
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/* XXX use regerror to explain it */
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err(1,"Regular expression argument to -B is botched");
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flag_bogus = 1;
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break;
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case '?':
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default:
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fprintf(stderr,"Usage:\n\t%s: %s\n", argv[0],
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"[-I ignore_re] [-B bogus_re]");
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return (1);
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}
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argc -= optind;
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argv += optind;
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setbuf(stdout,0);
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signal(SIGINFO,stat_info);
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printf("CTM_BEGIN 2.0 tst 0 950326022230Z .\n");
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|
DoDir(argv[0],argv[1],"");
|
|
printf("CTM_END ");
|
|
print_stat(stderr,"");
|
|
exit(0);
|
|
}
|