mirror of
https://github.com/transmission/transmission
synced 2024-12-25 01:03:01 +00:00
203 lines
4.5 KiB
C
203 lines
4.5 KiB
C
/******************************************************************************
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* $Id$
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*
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* Copyright (c) 2007 Joshua Elsasser
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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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 <assert.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "errors.h"
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#include "misc.h"
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#include "transmission.h"
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#include "trcompat.h"
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static void pushdir ( char *, const char *, size_t );
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static char gl_myname[256];
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void
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setmyname( const char * argv0 )
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{
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const char * name;
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name = strrchr( argv0, '/' );
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if( NULL == name || '\0' == *(++name) )
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{
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name = argv0;
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}
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strlcpy( gl_myname, name, sizeof gl_myname );
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}
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const char *
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getmyname( void )
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{
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return gl_myname;
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}
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void
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pushdir( char * path, const char * file, size_t size )
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{
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size_t off;
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off = strlen( path );
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if( 0 < off && off + 1 < size && '/' != path[off-1] )
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{
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path[off] = '/';
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path[off+1] = '\0';
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}
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strlcat( path, file, size );
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}
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void
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confpath( char * buf, size_t len, const char * file, enum confpathtype type )
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{
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strlcpy( buf, tr_getPrefsDirectory(), len );
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switch( type )
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{
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case CONF_PATH_TYPE_DAEMON:
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pushdir( buf, "daemon", len );
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break;
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case CONF_PATH_TYPE_GTK:
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pushdir( buf, "gtk", len );
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break;
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case CONF_PATH_TYPE_OSX:
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break;
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default:
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assert( 0 );
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break;
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}
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if( NULL != file )
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{
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pushdir( buf, file, len );
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}
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}
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void
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absolutify( char * buf, size_t len, const char * path )
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{
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size_t off;
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if( '/' == path[0] )
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{
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strlcpy( buf, path, len );
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return;
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}
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getcwd( buf, len );
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off = strlen( buf );
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if( 0 < off && len > off + 1 && '/' != buf[off] )
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{
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buf[off] = '/';
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off++;
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buf[off] = '\0';
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}
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strlcat( buf, path, len );
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}
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int
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writefile( const char * name, uint8_t * buf, ssize_t len )
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{
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int fd;
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ssize_t res;
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fd = open( name, O_WRONLY | O_CREAT | O_TRUNC, 0666 );
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if( 0 > fd )
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{
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errnomsg( "failed to open %s for writing", name );
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return -1;
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}
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res = write( fd, buf, len );
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if( 0 > res )
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{
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errnomsg( "failed to write to %s", name );
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return -1;
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}
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if( len > res )
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{
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errmsg( "failed to write all data to %s", name );
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return -1;
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}
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close( fd );
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return 0;
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}
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uint8_t *
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readfile( const char * name, size_t * len )
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{
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struct stat sb;
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int fd;
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uint8_t * buf;
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ssize_t res;
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fd = open( name, O_RDONLY );
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if( 0 > fd )
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{
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if( ENOENT != errno )
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{
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errnomsg( "failed to open %s for reading", name );
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}
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return NULL;
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}
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if( 0 > fstat( fd, &sb ) )
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{
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errnomsg( "failed to stat %s", name );
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return NULL;
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}
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buf = malloc( sb.st_size );
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if( NULL == buf )
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{
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mallocmsg( sb.st_size );
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return NULL;
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}
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res = read( fd, buf, sb.st_size );
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if( 0 > res )
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{
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errnomsg( "failed to read from %s", name );
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free( buf );
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return NULL;
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}
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if( res < sb.st_size )
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{
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errmsg( "failed to read all data from %s", name );
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free( buf );
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return NULL;
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}
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close( fd );
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*len = res;
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return buf;
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}
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