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/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* <koshy@india.hp.com> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Joseph Koshy
* ----------------------------------------------------------------------------
*
* $FreeBSD$
*
*/
#include "ctm.h"
#define BADREAD 32
/*---------------------------------------------------------------------------*/
/* PassB -- Backup modified files.
*/
int
PassB(FILE *fd)
{
u_char *p,*q;
MD5_CTX ctx;
int i,j,sep,cnt;
u_char *md5=0,*md5before=0,*trash=0,*name=0,*uid=0,*gid=0,*mode=0;
struct CTM_Syntax *sp;
FILE *b = 0; /* backup command */
u_char buf[BUFSIZ];
char md5_1[33];
int ret = 0;
int match = 0;
struct CTM_Filter *filter = NULL;
if(Verbose>3)
printf("PassB -- Backing up files which would be changed.\n");
MD5Init (&ctx);
sprintf(buf, TarCmd, BackupFile);
b=popen(buf, "w");
if(!b) { perror(buf); return Exit_Garbage; }
GETFIELD(p,' '); if(strcmp("CTM_BEGIN",p)) WRONG
GETFIELD(p,' '); if(strcmp(Version,p)) WRONG
GETFIELD(p,' '); if(strcmp(Name,p)) WRONG
GETFIELD(p,' '); if(strcmp(Nbr,p)) WRONG
GETFIELD(p,' '); if(strcmp(TimeStamp,p)) WRONG
GETFIELD(p,'\n'); if(strcmp(Prefix,p)) WRONG
for(;;) {
Delete(md5);
Delete(uid);
Delete(gid);
Delete(mode);
Delete(md5before);
Delete(trash);
Delete(name);
cnt = -1;
GETFIELD(p,' ');
if (p[0] != 'C' || p[1] != 'T' || p[2] != 'M') WRONG
if(!strcmp(p+3,"_END"))
break;
for(sp=Syntax;sp->Key;sp++)
if(!strcmp(p+3,sp->Key))
goto found;
WRONG
found:
for(i=0;(j = sp->List[i]);i++) {
if (sp->List[i+1] && (sp->List[i+1] & CTM_F_MASK) != CTM_F_Bytes)
sep = ' ';
else
sep = '\n';
switch (j & CTM_F_MASK) {
case CTM_F_Name: GETNAMECOPY(name,sep,j, Verbose); break;
case CTM_F_Uid: GETFIELDCOPY(uid,sep); break;
case CTM_F_Gid: GETFIELDCOPY(gid,sep); break;
case CTM_F_Mode: GETFIELDCOPY(mode,sep); break;
case CTM_F_MD5:
if(j & CTM_Q_MD5_Before)
GETFIELDCOPY(md5before,sep);
else
GETFIELDCOPY(md5,sep);
break;
case CTM_F_Count: GETBYTECNT(cnt,sep); break;
case CTM_F_Bytes: GETDATA(trash,cnt); break;
default: WRONG
}
}
/* XXX This should go away. Disallow trailing '/' */
j = strlen(name)-1;
if(name[j] == '/') name[j] = '\0';
if (KeepIt &&
(!strcmp(sp->Key,"DR") || !strcmp(sp->Key,"FR")))
continue;
/* match the name against the elements of the filter list. The
action associated with the last matched filter determines whether
this file should be ignored or backed up. */
match = (FilterList ? !(FilterList->Action) : CTM_FILTER_ENABLE);
for (filter = FilterList; filter; filter = filter->Next) {
if (0 == regexec(&filter->CompiledRegex, name, 0, 0, 0))
match = filter->Action;
}
if (CTM_FILTER_DISABLE == match)
continue;
if (!strcmp(sp->Key,"FS") || !strcmp(sp->Key,"FN") ||
!strcmp(sp->Key,"AS") || !strcmp(sp->Key,"DR") ||
!strcmp(sp->Key,"FR")) {
/* send name to the archiver for a backup */
cnt = strlen(name);
if (cnt != fwrite(name,1,cnt,b) || EOF == fputc('\n',b)) {
perror(name);
pclose(b);
WRONG;
}
}
}
ret = pclose(b);
Delete(md5);
Delete(uid);
Delete(gid);
Delete(mode);
Delete(md5before);
Delete(trash);
Delete(name);
q = MD5End (&ctx,md5_1);
GETFIELD(p,'\n'); /* <MD5> */
if(strcmp(q,p)) WRONG
if (-1 != getc(fd)) WRONG
return ret;
}
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