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star-1.5-backreferences_feature.patch
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File star-1.5-backreferences_feature.patch of Package star
Index: star-1.5/star/pax.c =================================================================== --- star-1.5.orig/star/pax.c +++ star-1.5/star/pax.c @@ -154,7 +154,7 @@ gargs(ac, av) &paxnflag, /* -n */ &paxopts, /* -o */ getpriv, NULL, /* -p */ - parsesubst, &do_subst, /* -s */ + paxpsubst, &do_subst, /* -s */ &paxtflag, /* -t */ &paxuflag, /* -u */ &verbose, /* -v */ Index: star-1.5/star/star.c =================================================================== --- star-1.5.orig/star/star.c +++ star-1.5/star/star.c @@ -1142,7 +1142,7 @@ xusage(ret) error("\t-dodesc\t\tdo descend directories found in a list= file\n"); error("\tpattern=p,pat=p\tset matching pattern\n"); error("\t-match-tree\tdo not scan the content of non matching dirs in create mode\n"); - error("\ts=replstr\tApply ed like pattern substitution -s /old/new/gp on filenames\n"); + error("\ts=replstr\tApply change(1) like pattern substitution -s /old/new/gp on filenames\n"); error("\tlevel=dumplevel\tset current incremental dump level\n"); error("\t-cumulative\tmake a cumulative incremental dump (relative to same level)\n"); error("\ttardumps=name\tset file name for tar dump dates, default is %s\n", dumpdates); @@ -1466,7 +1466,9 @@ BOOL Ointeractive = FALSE; &errflag, &dchangeflag, &prinodes, &diruid, &dirgid, &u_mask, - parsesubst, &do_subst, &archive) < 0) { + parsesubst, &do_subst, + paxpsubst, &do_subst, + &archive) < 0) { errmsgno(EX_BAD, "Bad Option: %s.\n", av[0]); susage(EX_BAD); } Index: star-1.5/star/starsubs.h =================================================================== --- star-1.5.orig/star/starsubs.h +++ star-1.5/star/starsubs.h @@ -427,6 +427,7 @@ extern BOOL star_darchive __PR((char *ar /* * subst.c */ +extern int paxpsubst __PR((char *cmd, BOOL *arg)); extern int parsesubst __PR((char *cmd, BOOL *arg)); #ifdef _STAR_H extern BOOL subst __PR((FINFO *info)); Index: star-1.5/star/subst.c =================================================================== --- star-1.5.orig/star/subst.c +++ star-1.5/star/subst.c @@ -29,15 +29,26 @@ static char sccsid[] = #include <schily/schily.h> #include <schily/patmatch.h> +#ifdef HAVE_REGEX_H +#include <regex.h> +#endif #include "star.h" #include "starsubs.h" +EXPORT int paxpsubst __PR((char *cmd, BOOL *arg)); EXPORT int parsesubst __PR((char *cmd, BOOL *arg)); +LOCAL int _parsesubst __PR((char *cmd, BOOL *arg, BOOL paxmode)); EXPORT BOOL subst __PR((FINFO *info)); LOCAL char *substitute __PR((char *from, long fromlen, int idx, char *to, long tolen)); LOCAL BOOL simpleto __PR((char *s, long len)); -LOCAL int catsub __PR((char *here, char *old, long oldlen, char *to, long tolen, char *limit)); +#ifdef HAVE_REGEX_H +LOCAL int catsub __PR((char *here, char *old, long oldlen, + char *to, long tolen, char *limit, regmatch_t *)); +#else +LOCAL int catsub __PR((char *here, char *old, long oldlen, + char *to, long tolen, char *limit)); +#endif EXPORT BOOL ia_change __PR((TCB *ptb, FINFO *info)); LOCAL BOOL pax_change __PR((TCB *ptb, FINFO *info)); @@ -52,6 +63,7 @@ LOCAL int *aux[NPAT]; LOCAL int alt[NPAT]; LOCAL int *state; LOCAL Int32_t substcnt[NPAT]; +LOCAL char isreg[NPAT]; /* Whether we use sed(1) or change(1) style */ extern FILE *tty; extern FILE *vpr; @@ -64,11 +76,43 @@ extern BOOL paxinteract; /* * This is the command line parser for tar/pax substitution commands. * Syntax is: -s '/old/new/v' + * Supporting sed(1) like substitutions. + */ +EXPORT int +paxpsubst(cmd, arg) + char *cmd; /* The subst command string */ + BOOL *arg; /* Set to TRUE if we have a valid stubst */ +{ +#ifdef HAVE_REGEX_H + return (_parsesubst(cmd, arg, TRUE)); +#else + return (_parsesubst(cmd, arg, FALSE)); +#endif +} + +/* + * This is the command line parser for tar/pax substitution commands. + * Syntax is: -s '/old/new/v' + * Supporting change(1) like substitutions. */ EXPORT int parsesubst(cmd, arg) - char *cmd; - BOOL *arg; + char *cmd; /* The subst command string */ + BOOL *arg; /* Set to TRUE if we have a valid stubst */ +{ + return (_parsesubst(cmd, arg, FALSE)); +} + +/* + * This is the command line parser for tar/pax substitution commands. + * Syntax is: -s '/old/new/v' + * Supporting both variants of the substitutions. + */ +LOCAL int +_parsesubst(cmd, arg, paxmode) + char *cmd; /* The subst command string */ + BOOL *arg; /* Set to TRUE if we have a valid stubst */ + BOOL paxmode; /* Whether to use sed(1) instead of change(1) */ { register char *from; register char *to; @@ -144,11 +188,32 @@ parsesubst(cmd, arg) if (fromlen > maxplen) maxplen = fromlen; - aux[npat] = __malloc(fromlen*sizeof (int), "compiled subst pattern"); - if ((alt[npat] = patcompile(pat[npat], patlen[npat], aux[npat])) == 0) { - comerrno(EX_BAD, "Bad pattern: '%s'.\n", pat[npat]); - return (-2); + if (paxmode) { +#ifdef HAVE_REGEX_H + int ret; + + aux[npat] = __malloc(sizeof (regex_t), + "compiled subst pattern"); + ret = regcomp((regex_t *) aux[npat], (char *)pat[npat], 0); + if (ret != 0) { + char eb[1024]; + + regerror(ret, (regex_t *) aux[npat], eb, sizeof (eb)); + comerrno(EX_BAD, "Bad pattern: '%s'. %s\n", + pat[npat], eb); + return (-2); + } +#endif + } else { + aux[npat] = __malloc(fromlen*sizeof (int), + "compiled subst pattern"); + if ((alt[npat] = patcompile(pat[npat], patlen[npat], + aux[npat])) == 0) { + comerrno(EX_BAD, "Bad pattern: '%s'.\n", pat[npat]); + return (-2); + } } + isreg[npat] = paxmode; if (printsubst) count *= -1; @@ -213,10 +278,19 @@ substitute(from, fromlen, idx, to, tolen char *string; int slen; BOOL didmatch = FALSE; + BOOL paxmode; +#ifdef HAVE_REGEX_H + regmatch_t mat[10]; + regmatch_t *matp; + regex_t *re = (regex_t *) aux[idx]; +#endif char *limit = &new[PATH_MAX]; if (fromlen == 0) return (NULL); + + paxmode = isreg[idx]; + tosimple = simpleto(to, tolen); string = from; @@ -230,6 +304,18 @@ substitute(from, fromlen, idx, to, tolen * Search the next occurence of the pattern in the 'from' string. */ while (*string != '\0') { +#ifdef HAVE_REGEX_H + matp = NULL; + if (paxmode) { + if (regexec(re, string, 10, mat, 0) != 0) { + string++; + slen--; + continue; + } + end = string + mat[0].rm_eo; + matp = mat; + } else +#endif if ((end = (char *)patmatch(pat[idx], aux[idx], (Uchar *)string, 0, slen, alt[idx], state)) == NULL) { @@ -238,6 +324,7 @@ substitute(from, fromlen, idx, to, tolen slen--; continue; } + if (!didmatch) { didmatch = TRUE; strncpy((char *)new, (char *)from, PATH_MAX); @@ -282,7 +369,12 @@ over: new[0] = '\0'; return (new); } else { +#ifdef HAVE_REGEX_H + tolen = catsub(string, old, oldlen, to, tolen, limit, + matp); +#else tolen = catsub(string, old, oldlen, to, tolen, limit); +#endif if (tolen < 0) { new[0] = '\0'; return (new); @@ -322,13 +414,20 @@ simpleto(s, len) * The '&' character in the to string is substituted with the old from string. */ LOCAL int +#ifdef HAVE_REGEX_H +catsub(here, old, oldlen, to, tolen, limit, mat) +#else catsub(here, old, oldlen, to, tolen, limit) +#endif register char *here; register char *old; register long oldlen; register char *to; register long tolen; register char *limit; +#ifdef HAVE_REGEX_H + regmatch_t *mat; +#endif { char xold[PATH_MAX+1]; char *p = here; @@ -342,6 +441,24 @@ catsub(here, old, oldlen, to, tolen, lim while (--tolen >= 0) { if (here >= limit) goto over; +#ifdef HAVE_REGEX_H + if (*to == '\\' && mat && to[1] >= '1' && to[1] <= '9') { + int i = to[1] - '0'; + size_t olen; + + to += 2; + tolen--; + if (mat[i].rm_so == -1) + continue; + + olen = mat[i].rm_eo - mat[i].rm_so; + if ((here+olen) >= limit) + goto over; + strncpy(here, old+mat[i].rm_so, olen); + here += olen; + continue; + } else +#endif if (*to == '\\') { if (--tolen >= 0) *here++ = *++to; @@ -360,7 +477,7 @@ catsub(here, old, oldlen, to, tolen, lim strcpy(here, xold); return (here - p); over: - errmsgno(EX_BAD, "& Substitution path overflow.\n"); + errmsgno(EX_BAD, "Substitution path overflow.\n"); return (-1); } Index: star-1.5/conf/configure.in =================================================================== --- star-1.5.orig/conf/configure.in +++ star-1.5/conf/configure.in @@ -75,6 +75,7 @@ AC_CHECK_HEADERS(exec_attr.h secdb.h) AC_CHECK_HEADERS(direct.h) AC_CHECK_HEADERS(pthread.h thread.h) AC_CHECK_HEADERS(libgen.h) +AC_CHECK_HEADERS(regex.h regexp.h regexpr.h) dnl from aclocal.m4 (uses AC_TRY_COMPILE) AC_HEADER_MAKEDEV Index: star-1.5/conf/xconfig.h.in =================================================================== --- star-1.5.orig/conf/xconfig.h.in +++ star-1.5/conf/xconfig.h.in @@ -143,6 +143,9 @@ #undef HAVE_THREAD_H /* if we may include thread.h */ #undef HAVE_LIBGEN_H /* if we may include libgen.h */ +#undef HAVE_REGEX_H /* if we may include regex.h */ +#undef HAVE_REGEXP_H /* if we may include regexp.h */ +#undef HAVE_REGEXPR_H /* if we may include regexpr.h */ /* * Convert to SCHILY name
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