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transmission/libtransmission/utils.c

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/******************************************************************************
* $Id$
*
* Copyright (c) 2005-2008 Transmission authors and contributors
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*****************************************************************************/
#include <assert.h>
#include <ctype.h> /* isalpha */
#include <errno.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h> /* strerror */
#include <libgen.h> /* basename */
#include <sys/time.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h> /* usleep, stat */
#include "event.h"
#ifdef WIN32
#include <windows.h> /* for Sleep */
#elif defined(__BEOS__)
#include <kernel/OS.h>
#endif
#include "transmission.h"
#include "trcompat.h"
#include "utils.h"
#include "platform.h"
static tr_lock * messageLock = NULL;
static int messageLevel = 0;
static int messageQueuing = FALSE;
static tr_msg_list * messageQueue = NULL;
static tr_msg_list ** messageQueueTail = &messageQueue;
void tr_msgInit( void )
{
if( !messageLock )
messageLock = tr_lockNew( );
}
FILE*
tr_getLog( void )
{
static int initialized = FALSE;
static FILE * file= NULL;
if( !initialized )
{
const char * str = getenv( "TR_DEBUG_FD" );
int fd = 0;
if( str && *str )
fd = atoi( str );
switch( fd ) {
case 1: file = stdout; break;
case 2: file = stderr; break;
default: file = NULL; break;
}
initialized = TRUE;
}
return file;
}
void
tr_setMessageLevel( int level )
{
tr_msgInit();
tr_lockLock( messageLock );
messageLevel = MAX( 0, level );
tr_lockUnlock( messageLock );
}
int
tr_getMessageLevel( void )
{
int ret;
tr_msgInit();
tr_lockLock( messageLock );
ret = messageLevel;
tr_lockUnlock( messageLock );
return ret;
}
void
tr_setMessageQueuing( int enabled )
{
tr_msgInit();
tr_lockLock( messageLock );
messageQueuing = enabled;
tr_lockUnlock( messageLock );
}
tr_msg_list *
tr_getQueuedMessages( void )
{
tr_msg_list * ret;
assert( NULL != messageLock );
tr_lockLock( messageLock );
ret = messageQueue;
messageQueue = NULL;
messageQueueTail = &messageQueue;
tr_lockUnlock( messageLock );
return ret;
}
void
tr_freeMessageList( tr_msg_list * list )
{
tr_msg_list * next;
while( NULL != list )
{
next = list->next;
free( list->message );
free( list->name );
free( list );
list = next;
}
}
/**
***
**/
char*
tr_getLogTimeStr( char * buf, int buflen )
{
char tmp[64];
time_t now;
struct tm now_tm;
struct timeval tv;
int milliseconds;
now = time( NULL );
gettimeofday( &tv, NULL );
#ifdef WIN32
now_tm = *localtime( &now );
#else
localtime_r( &now, &now_tm );
#endif
strftime( tmp, sizeof(tmp), "%H:%M:%S", &now_tm );
milliseconds = (int)(tv.tv_usec / 1000);
snprintf( buf, buflen, "%s.%03d", tmp, milliseconds );
return buf;
}
void
tr_deepLog( const char * file, int line, const char * name, const char * fmt, ... )
{
FILE * fp = tr_getLog( );
if( fp != NULL )
{
va_list args;
char timestr[64];
struct evbuffer * buf = evbuffer_new( );
char * myfile = tr_strdup( file );
evbuffer_add_printf( buf, "[%s] ", tr_getLogTimeStr( timestr, sizeof(timestr) ) );
if( name )
evbuffer_add_printf( buf, "%s ", name );
va_start( args, fmt );
evbuffer_add_vprintf( buf, fmt, args );
va_end( args );
evbuffer_add_printf( buf, " (%s:%d)\n", basename(myfile), line );
fwrite( EVBUFFER_DATA(buf), 1, EVBUFFER_LENGTH(buf), fp );
tr_free( myfile );
evbuffer_free( buf );
}
}
/***
****
***/
void
tr_msg( const char * file, int line, int level,
const char * name,
const char * fmt, ... )
{
FILE * fp;
if( messageLock )
tr_lockLock( messageLock );
fp = tr_getLog( );
if( !messageLevel )
{
char * env = getenv( "TR_DEBUG" );
messageLevel = ( env ? atoi( env ) : 0 ) + 1;
messageLevel = MAX( 1, messageLevel );
}
if( messageLevel >= level )
{
va_list ap;
struct evbuffer * buf = evbuffer_new( );
/* build the text message */
va_start( ap, fmt );
evbuffer_add_vprintf( buf, fmt, ap );
va_end( ap );
if( EVBUFFER_LENGTH( buf ) )
{
if( messageQueuing )
{
tr_msg_list * newmsg;
newmsg = tr_new0( tr_msg_list, 1 );
newmsg->level = level;
newmsg->when = time( NULL );
newmsg->message = tr_strdup( (char*)EVBUFFER_DATA( buf ) );
newmsg->file = file;
newmsg->line = line;
newmsg->name = tr_strdup( name );
*messageQueueTail = newmsg;
messageQueueTail = &newmsg->next;
}
else
{
if( fp == NULL )
fp = stderr;
fprintf( fp, "%s\n", (char*)EVBUFFER_DATA(buf) );
fflush( fp );
}
evbuffer_free( buf );
}
}
if( messageLock )
tr_lockUnlock( messageLock );
}
int tr_rand( int sup )
{
static int init = 0;
assert( sup > 0 );
if( !init )
{
srand( tr_date() );
init = 1;
}
return rand() % sup;
}
/***
****
***/
void
tr_set_compare( const void * va, size_t aCount,
const void * vb, size_t bCount,
int compare( const void * a, const void * b ),
size_t elementSize,
tr_set_func in_a_cb,
tr_set_func in_b_cb,
tr_set_func in_both_cb,
void * userData )
{
const uint8_t * a = (const uint8_t *) va;
const uint8_t * b = (const uint8_t *) vb;
const uint8_t * aend = a + elementSize*aCount;
const uint8_t * bend = b + elementSize*bCount;
while( a!=aend || b!=bend )
{
if( a==aend )
{
(*in_b_cb)( (void*)b, userData );
b += elementSize;
}
else if ( b==bend )
{
(*in_a_cb)( (void*)a, userData );
a += elementSize;
}
else
{
const int val = (*compare)( a, b );
if( !val )
{
(*in_both_cb)( (void*)a, userData );
a += elementSize;
b += elementSize;
}
else if( val < 0 )
{
(*in_a_cb)( (void*)a, userData );
a += elementSize;
}
else if( val > 0 )
{
(*in_b_cb)( (void*)b, userData );
b += elementSize;
}
}
}
}
/***
****
***/
int
tr_compareUint16( uint16_t a, uint16_t b )
{
if( a < b ) return -1;
if( a > b ) return 1;
return 0;
}
int
tr_compareUint32( uint32_t a, uint32_t b )
{
if( a < b ) return -1;
if( a > b ) return 1;
return 0;
}
/**
***
**/
struct timeval
tr_timevalMsec( uint64_t milliseconds )
{
struct timeval ret;
const uint64_t microseconds = milliseconds * 1000;
ret.tv_sec = microseconds / 1000000;
ret.tv_usec = microseconds % 1000000;
return ret;
}
uint8_t *
tr_loadFile( const char * path, size_t * size )
{
uint8_t * buf;
struct stat sb;
FILE * file;
const char * err_fmt = _( "Couldn't read \"%1$s\": %2$s" );
/* try to stat the file */
errno = 0;
if( stat( path, &sb ) )
{
tr_dbg( err_fmt, path, tr_strerror(errno) );
return NULL;
}
if( ( sb.st_mode & S_IFMT ) != S_IFREG )
{
tr_err( err_fmt, path, _( "Not a regular file" ) );
return NULL;
}
/* Load the torrent file into our buffer */
file = fopen( path, "rb" );
if( !file )
{
tr_err( err_fmt, path, tr_strerror(errno) );
return NULL;
}
buf = malloc( sb.st_size );
if( NULL == buf )
{
tr_err( err_fmt, path, _( "Memory allocation failed" ) );
fclose( file );
return NULL;
}
fseek( file, 0, SEEK_SET );
if( fread( buf, sb.st_size, 1, file ) != 1 )
{
tr_err( err_fmt, path, tr_strerror(errno) );
free( buf );
fclose( file );
return NULL;
}
fclose( file );
*size = sb.st_size;
return buf;
}
int
tr_mkdir( const char * path, int permissions
#ifdef WIN32
UNUSED
#endif
)
{
#ifdef WIN32
if( path && isalpha(path[0]) && path[1]==':' && !path[2] )
return 0;
return mkdir( path );
#else
return mkdir( path, permissions );
#endif
}
int
tr_mkdirp( const char * path_in, int permissions )
{
char * path = tr_strdup( path_in );
char * p, * pp;
struct stat sb;
int done;
/* walk past the root */
p = path;
while( *p == TR_PATH_DELIMITER )
++p;
pp = p;
done = 0;
while( ( p = strchr( pp, TR_PATH_DELIMITER ) ) || ( p = strchr( pp, '\0' ) ) )
{
if( !*p )
done = 1;
else
*p = '\0';
if( stat( path, &sb ) )
{
/* Folder doesn't exist yet */
if( tr_mkdir( path, permissions ) ) {
const int err = errno;
tr_err( _( "Couldn't create \"%1$s\": %2$s" ), path, tr_strerror( err ) );
tr_free( path );
errno = err;
return -1;
}
}
else if( ( sb.st_mode & S_IFMT ) != S_IFDIR )
{
/* Node exists but isn't a folder */
char buf[MAX_PATH_LENGTH];
snprintf( buf, sizeof( buf ), _( "File \"%s\" is in the way" ), path );
tr_err( _( "Couldn't create \"%1$s\": %2$s" ), path_in, buf );
tr_free( path );
errno = ENOTDIR;
return -1;
}
if( done )
break;
*p = TR_PATH_DELIMITER;
p++;
pp = p;
}
tr_free( path );
return 0;
}
void
tr_buildPath ( char *buf, size_t buflen, const char *first_element, ... )
{
struct evbuffer * evbuf = evbuffer_new( );
const char * element = first_element;
va_list vl;
va_start( vl, first_element );
while( element ) {
if( EVBUFFER_LENGTH(evbuf) )
evbuffer_add_printf( evbuf, "%c", TR_PATH_DELIMITER );
evbuffer_add_printf( evbuf, "%s", element );
element = (const char*) va_arg( vl, const char* );
}
if( EVBUFFER_LENGTH(evbuf) )
strlcpy( buf, (char*)EVBUFFER_DATA(evbuf), buflen );
else
*buf = '\0';
evbuffer_free( evbuf );
}
int
tr_ioErrorFromErrno( int err )
{
switch( err )
{
case 0:
return TR_OK;
case EACCES:
case EROFS:
return TR_ERROR_IO_PERMISSIONS;
case ENOSPC:
return TR_ERROR_IO_SPACE;
case EMFILE:
return TR_ERROR_IO_OPEN_FILES;
case EFBIG:
return TR_ERROR_IO_FILE_TOO_BIG;
default:
tr_dbg( "generic i/o errno from errno: %s", tr_strerror( errno ) );
return TR_ERROR_IO_OTHER;
}
}
const char *
tr_errorString( int code )
{
switch( code )
{
case TR_OK:
return _( "No error" );
case TR_ERROR:
return _( "Unspecified error" );
case TR_ERROR_ASSERT:
return _( "Assert error" );
case TR_ERROR_IO_PARENT:
return _( "Destination folder doesn't exist" );
case TR_ERROR_IO_PERMISSIONS:
return tr_strerror( EACCES );
case TR_ERROR_IO_SPACE:
return tr_strerror( ENOSPC );
case TR_ERROR_IO_FILE_TOO_BIG:
return tr_strerror( EFBIG );
case TR_ERROR_IO_OPEN_FILES:
return tr_strerror( EMFILE );
case TR_ERROR_IO_DUP_DOWNLOAD:
return _( "A torrent with this name and destination folder already exists." );
case TR_ERROR_IO_CHECKSUM:
return _( "Checksum failed" );
case TR_ERROR_IO_OTHER:
return _( "Unspecified I/O error" );
case TR_ERROR_TC_ERROR:
return _( "Tracker error" );
case TR_ERROR_TC_WARNING:
return _( "Tracker warning" );
case TR_ERROR_PEER_MESSAGE:
return _( "Peer sent a bad message" );
default:
return _( "Unknown error" );
}
}
/****
*****
****/
char*
tr_strdup( const char * in )
{
return tr_strndup( in, in ? strlen(in) : 0 );
}
char*
tr_strndup( const char * in, int len )
{
char * out = NULL;
if( len < 0 )
{
out = tr_strdup( in );
}
else if( in != NULL )
{
out = tr_malloc( len+1 );
memcpy( out, in, len );
out[len] = '\0';
}
return out;
}
void*
tr_calloc( size_t nmemb, size_t size )
{
return nmemb && size ? calloc( nmemb, size ) : NULL;
}
void*
tr_malloc( size_t size )
{
return size ? malloc( size ) : NULL;
}
void*
tr_malloc0( size_t size )
{
void * ret = tr_malloc( size );
memset( ret, 0, size );
return ret;
}
void
tr_free( void * p )
{
if( p )
free( p );
}
const char*
tr_strerror( int i )
{
const char * ret = strerror( i );
if( ret == NULL )
ret = "Unknown Error";
return ret;
}
/****
*****
****/
/* note that the argument is how many bits are needed, not bytes */
tr_bitfield*
tr_bitfieldNew( size_t bitcount )
{
tr_bitfield * ret = calloc( 1, sizeof(tr_bitfield) );
if( NULL == ret )
return NULL;
ret->len = (bitcount+7u) / 8u;
ret->bits = calloc( ret->len, 1 );
if( NULL == ret->bits ) {
free( ret );
return NULL;
}
return ret;
}
tr_bitfield*
tr_bitfieldDup( const tr_bitfield * in )
{
tr_bitfield * ret = calloc( 1, sizeof(tr_bitfield) );
ret->len = in->len;
ret->bits = malloc( ret->len );
memcpy( ret->bits, in->bits, ret->len );
return ret;
}
void tr_bitfieldFree( tr_bitfield * bitfield )
{
if( bitfield )
{
free( bitfield->bits );
free( bitfield );
}
}
void
tr_bitfieldClear( tr_bitfield * bitfield )
{
memset( bitfield->bits, 0, bitfield->len );
}
int
tr_bitfieldIsEmpty( const tr_bitfield * bitfield )
{
size_t i;
for( i=0; i<bitfield->len; ++i )
if( bitfield->bits[i] )
return 0;
return 1;
}
int
tr_bitfieldHas( const tr_bitfield * bitfield, size_t nth )
{
static const uint8_t ands[8] = { 128, 64, 32, 16, 8, 4, 2, 1 };
const size_t i = nth >> 3u;
return ( bitfield != NULL )
&& ( bitfield->bits != NULL )
&& ( i < bitfield->len )
&& ( ( bitfield->bits[i] & ands[nth&7u] ) != 0 );
}
int
tr_bitfieldAdd( tr_bitfield * bitfield, size_t nth )
{
static const uint8_t ands[8] = { 128, 64, 32, 16, 8, 4, 2, 1 };
const size_t i = nth >> 3u;
assert( bitfield != NULL );
assert( bitfield->bits != NULL );
if( i >= bitfield->len )
return -1;
bitfield->bits[i] |= ands[nth&7u];
assert( tr_bitfieldHas( bitfield, nth ) );
return 0;
}
int
tr_bitfieldAddRange( tr_bitfield * bitfield,
size_t begin,
size_t end )
{
int err = 0;
size_t i;
for( i=begin; i<end; ++i )
if(( err = tr_bitfieldAdd( bitfield, i )))
break;
return err;
}
int
tr_bitfieldRem( tr_bitfield * bitfield,
size_t nth )
{
static const uint8_t rems[8] = { 127, 191, 223, 239, 247, 251, 253, 254 };
const size_t i = nth >> 3u;
assert( bitfield != NULL );
assert( bitfield->bits != NULL );
if( i >= bitfield->len )
return -1;
bitfield->bits[i] &= rems[nth&7u];
assert( !tr_bitfieldHas( bitfield, nth ) );
return 0;
}
int
tr_bitfieldRemRange ( tr_bitfield * b,
size_t begin,
size_t end )
{
int err = 0;
size_t i;
for( i=begin; i<end; ++i )
if(( err = tr_bitfieldRem( b, i )))
break;
return err;
}
tr_bitfield*
tr_bitfieldOr( tr_bitfield * a, const tr_bitfield * b )
{
uint8_t *ait;
const uint8_t *aend, *bit;
assert( a->len == b->len );
for( ait=a->bits, bit=b->bits, aend=ait+a->len; ait!=aend; )
*ait++ |= *bit++;
return a;
}
/* set 'a' to all the flags that were in 'a' but not 'b' */
void
tr_bitfieldDifference( tr_bitfield * a, const tr_bitfield * b )
{
uint8_t *ait;
const uint8_t *aend, *bit;
assert( a->len == b->len );
for( ait=a->bits, bit=b->bits, aend=ait+a->len; ait!=aend; )
*ait++ &= ~(*bit++);
}
size_t
tr_bitfieldCountTrueBits( const tr_bitfield* b )
{
size_t ret = 0;
const uint8_t *it, *end;
static const int trueBitCount[512] = {
0,1,1,2,1,2,2,3,1,2,2,3,2,3,3,4,1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,
1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,
1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,
2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,
1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,
2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,
2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,
3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,4,5,5,6,5,6,6,7,5,6,6,7,6,7,7,8,
1,2,2,3,2,3,3,4,2,3,3,4,3,4,4,5,2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,
2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,
2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,
3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,4,5,5,6,5,6,6,7,5,6,6,7,6,7,7,8,
2,3,3,4,3,4,4,5,3,4,4,5,4,5,5,6,3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,
3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,4,5,5,6,5,6,6,7,5,6,6,7,6,7,7,8,
3,4,4,5,4,5,5,6,4,5,5,6,5,6,6,7,4,5,5,6,5,6,6,7,5,6,6,7,6,7,7,8,
4,5,5,6,5,6,6,7,5,6,6,7,6,7,7,8,5,6,6,7,6,7,7,8,6,7,7,8,7,8,8,9
};
if( !b )
return 0;
for( it=b->bits, end=it+b->len; it!=end; ++it )
ret += trueBitCount[*it];
return ret;
}
/***
****
***/
uint64_t
tr_date( void )
{
struct timeval tv;
gettimeofday( &tv, NULL );
return (uint64_t) tv.tv_sec * 1000 + ( tv.tv_usec / 1000 );
}
void
tr_wait( uint64_t delay_milliseconds )
{
#ifdef __BEOS__
snooze( 1000 * delay_milliseconds );
#elif defined(WIN32)
Sleep( (DWORD)delay_milliseconds );
#else
usleep( 1000 * delay_milliseconds );
#endif
}
/***
****
***/
#ifndef HAVE_STRLCPY
/*
* Copy src to string dst of size siz. At most siz-1 characters
* will be copied. Always NUL terminates (unless siz == 0).
* Returns strlen(src); if retval >= siz, truncation occurred.
*/
size_t
strlcpy(char *dst, const char *src, size_t siz)
{
char *d = dst;
const char *s = src;
size_t n = siz;
assert( s != NULL );
assert( d != NULL );
/* Copy as many bytes as will fit */
if (n != 0) {
while (--n != 0) {
if ((*d++ = *s++) == '\0')
break;
}
}
/* Not enough room in dst, add NUL and traverse rest of src */
if (n == 0) {
if (siz != 0)
*d = '\0'; /* NUL-terminate dst */
while (*s++)
;
}
return(s - src - 1); /* count does not include NUL */
}
#endif /* HAVE_STRLCPY */
/***
****
***/
double
tr_getRatio( double numerator, double denominator )
{
double ratio;
if( denominator )
ratio = numerator / denominator;
else if( numerator )
ratio = TR_RATIO_INF;
else
ratio = TR_RATIO_NA;
return ratio;
}
void
tr_sha1_to_hex( char * out, const uint8_t * sha1 )
{
static const char hex[] = "0123456789abcdef";
int i;
for (i = 0; i < 20; i++) {
unsigned int val = *sha1++;
*out++ = hex[val >> 4];
*out++ = hex[val & 0xf];
}
*out = '\0';
}
/***
****
***/
int
tr_httpIsValidURL( const char * url )
{
return !tr_httpParseURL( url, -1, NULL, NULL, NULL );
}
int
tr_httpParseURL( const char * url_in, int len,
char ** setme_host,
int * setme_port,
char ** setme_path )
{
int err;
int port = 0;
int n;
char * tmp;
char * pch;
const char * protocol = NULL;
const char * host = NULL;
const char * path = NULL;
tmp = tr_strndup( url_in, len );
if(( pch = strstr( tmp, "://" )))
{
*pch = '\0';
protocol = tmp;
pch += 3;
/*fprintf( stderr, "protocol is [%s]... what's left is [%s]\n", protocol, pch );*/
if(( n = strcspn( pch, ":/" )))
{
const int havePort = pch[n] == ':';
host = pch;
pch += n;
*pch++ = '\0';
/*fprintf( stderr, "host is [%s]... what's left is [%s]\n", host, pch );*/
if( havePort )
{
char * end;
port = strtol( pch, &end, 10 );
pch = end;
/*fprintf( stderr, "port is [%d]... what's left is [%s]\n", port, pch );*/
}
path = pch;
/*fprintf( stderr, "path is [%s]\n", path );*/
}
}
err = !host || !path || !protocol || ( strcmp(protocol,"http") && strcmp(protocol,"https") );
if( !err && !port ) {
if( !strcmp(protocol,"http") ) port = 80;
if( !strcmp(protocol,"https") ) port = 443;
}
if( !err ) {
if( setme_host) { ((char*)host)[-3]=':'; *setme_host = tr_strdup( protocol ); }
if( setme_path) { ((char*)path)[-1]='/'; *setme_path = tr_strdup( path-1 ); }
if( setme_port) *setme_port = port;
}
tr_free( tmp );
return err;
}
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