mirror of
git://git.gnupg.org/gnupg.git
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152 lines
3.4 KiB
C
152 lines
3.4 KiB
C
/* miscellaneous.c - Stuff not fitting elsewhere
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* Copyright (C) 2003, 2006 Free Software Foundation, Inc.
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*
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* This file is part of GnuPG.
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*
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* GnuPG is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* GnuPG is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
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* USA.
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*/
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#include <config.h>
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#include <stdlib.h>
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#include <errno.h>
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#include "util.h"
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#include "iobuf.h"
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/* Decide whether the filename is stdout or a real filename and return
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* an appropriate string. */
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const char *
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print_fname_stdout (const char *s)
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{
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if( !s || (*s == '-' && !s[1]) )
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return "[stdout]";
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return s;
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}
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/* Decide whether the filename is stdin or a real filename and return
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* an appropriate string. */
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const char *
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print_fname_stdin (const char *s)
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{
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if( !s || (*s == '-' && !s[1]) )
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return "[stdin]";
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return s;
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}
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/* fixme: Globally replace it by print_sanitized_buffer. */
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void
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print_string( FILE *fp, const byte *p, size_t n, int delim )
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{
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print_sanitized_buffer (fp, p, n, delim);
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}
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void
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print_utf8_string2 ( FILE *fp, const byte *p, size_t n, int delim )
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{
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print_sanitized_utf8_buffer (fp, p, n, delim);
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}
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void
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print_utf8_string( FILE *fp, const byte *p, size_t n )
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{
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print_utf8_string2 (fp, p, n, 0);
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}
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char *
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make_printable_string (const void *p, size_t n, int delim )
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{
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return sanitize_buffer (p, n, delim);
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}
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/*
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* Check if the file is compressed.
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*/
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int
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is_file_compressed (const char *s, int *ret_rc)
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{
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iobuf_t a;
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byte buf[4];
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int i, rc = 0;
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int overflow;
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struct magic_compress_s {
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size_t len;
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byte magic[4];
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} magic[] = {
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{ 3, { 0x42, 0x5a, 0x68, 0x00 } }, /* bzip2 */
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{ 3, { 0x1f, 0x8b, 0x08, 0x00 } }, /* gzip */
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{ 4, { 0x50, 0x4b, 0x03, 0x04 } }, /* (pk)zip */
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};
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if ( iobuf_is_pipe_filename (s) || !ret_rc )
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return 0; /* We can't check stdin or no file was given */
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a = iobuf_open( s );
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if ( a == NULL ) {
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*ret_rc = gpg_error_from_errno (errno);
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return 0;
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}
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if ( iobuf_get_filelength( a, &overflow ) < 4 && !overflow) {
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*ret_rc = 0;
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goto leave;
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}
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if ( iobuf_read( a, buf, 4 ) == -1 ) {
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*ret_rc = a->error;
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goto leave;
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}
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for ( i = 0; i < DIM( magic ); i++ ) {
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if ( !memcmp( buf, magic[i].magic, magic[i].len ) ) {
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*ret_rc = 0;
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rc = 1;
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break;
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}
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}
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leave:
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iobuf_close( a );
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return rc;
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}
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/* Try match against each substring of multistr, delimited by | */
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int
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match_multistr (const char *multistr,const char *match)
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{
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do
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{
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size_t seglen = strcspn (multistr,"|");
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if (!seglen)
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break;
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/* Using the localized strncasecmp! */
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if (strncasecmp(multistr,match,seglen)==0)
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return 1;
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multistr += seglen;
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if (*multistr == '|')
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multistr++;
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}
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while (*multistr);
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return 0;
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}
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