From: Paul Eggert Date: Wed, 31 Dec 1997 11:01:18 +0000 (+0000) Subject: GNU tar 1.13 X-Git-Url: https://git.brokenzipper.com/gitweb?a=commitdiff_plain;h=8d5fcefaa2f13d0931a8dffab5fbc4c089bccac9;p=chaz%2Ftar GNU tar 1.13 --- diff --git a/lib/exclude.c b/lib/exclude.c new file mode 100644 index 0000000..ebb599c --- /dev/null +++ b/lib/exclude.c @@ -0,0 +1,127 @@ +/* exclude.c -- exclude file names + Copyright 1992, 1993, 1994, 1997 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. + If not, write to the Free Software Foundation, + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* Written by Paul Eggert */ + +#if HAVE_CONFIG_H +# include +#endif + +#include +#ifndef errno +extern int errno; +#endif +#include +#include +#include +#include + +void *xmalloc PARAMS ((size_t)); +void *xrealloc PARAMS ((void *, size_t)); + +/* Keep track of excluded file name patterns. */ + +struct exclude + { + char const **exclude; + int exclude_alloc; + int exclude_count; + }; + +struct exclude * +new_exclude (void) +{ + struct exclude *ex = (struct exclude *) xmalloc (sizeof (struct exclude)); + ex->exclude_count = 0; + ex->exclude_alloc = 64; + ex->exclude = (char const **) xmalloc (ex->exclude_alloc * sizeof (char *)); + return ex; +} + +int +excluded_filename (struct exclude const *ex, char const *f) +{ + char const * const *exclude = ex->exclude; + int exclude_count = ex->exclude_count; + int i; + + for (i = 0; i < exclude_count; i++) + if (fnmatch (exclude[i], f, 0) == 0) + return 1; + + return 0; +} + +void +add_exclude (struct exclude *ex, char const *pattern) +{ + if (ex->exclude_alloc <= ex->exclude_count) + ex->exclude = (char const **) xrealloc (ex->exclude, + ((ex->exclude_alloc *= 2) + * sizeof (char *))); + + ex->exclude[ex->exclude_count++] = pattern; +} + +int +add_exclude_file (struct exclude *ex, char const *filename, char line_end) +{ + int use_stdin = filename[0] == '-' && !filename[1]; + FILE *in; + char *buf; + char *p; + char const *pattern; + char const *lim; + size_t buf_alloc = 1024; + size_t buf_count = 0; + int c; + int e = 0; + + if (use_stdin) + in = stdin; + else if (! (in = fopen (filename, "r"))) + return -1; + + buf = xmalloc (buf_alloc); + + while ((c = getc (in)) != EOF) + { + buf[buf_count++] = c; + if (buf_count == buf_alloc) + buf = xrealloc (buf, buf_alloc *= 2); + } + + buf = xrealloc (buf, buf_count + 1); + + if (ferror (in)) + e = errno; + + if (!use_stdin && fclose (in) != 0) + e = errno; + + for (pattern = p = buf, lim = buf + buf_count; p <= lim; p++) + if (p < lim ? *p == line_end : buf < p && p[-1]) + { + *p = '\0'; + add_exclude (ex, pattern); + pattern = p + 1; + } + + errno = e; + return e ? -1 : 0; +} diff --git a/lib/exclude.h b/lib/exclude.h new file mode 100644 index 0000000..e783f24 --- /dev/null +++ b/lib/exclude.h @@ -0,0 +1,34 @@ +/* exclude.h -- declarations for excluding file names + Copyright 1992, 1993, 1994, 1997 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; see the file COPYING. + If not, write to the Free Software Foundation, + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ + +/* Written by Paul Eggert */ + +#ifndef PARAMS +# if defined PROTOTYPES || (defined __STDC__ && __STDC__) +# define PARAMS(Args) Args +# else +# define PARAMS(Args) () +# endif +#endif + +struct exclude; + +struct exclude *new_exclude PARAMS ((void)); +void add_exclude PARAMS ((struct exclude *, char const *)); +int add_exclude_file PARAMS ((struct exclude *, char const *, char)); +int excluded_filename PARAMS ((struct exclude const *, char const *));