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Commit 3a4c96c5 authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont
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ftp: rename function for consistency and avoid forward declaration

parent 2b9e7ac1
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Showing with 87 additions and 86 deletions
modules/access/ftp.c
View file @ 3a4c96c5
......@@ -144,7 +144,77 @@ static int ftp_SendCommand( vlc_object_t *obj, access_sys_t *sys,
return val;
}
static int ftp_ReadCommand( vlc_object_t *, access_sys_t *, int *, char ** );
/* TODO support this s**t :
RFC 959 allows the client to send certain TELNET strings at any moment,
even in the middle of a request:
* \377\377.
* \377\376x where x is one byte.
* \377\375x where x is one byte. The server is obliged to send \377\374x
* immediately after reading x.
* \377\374x where x is one byte.
* \377\373x where x is one byte. The server is obliged to send \377\376x
* immediately after reading x.
* \377x for any other byte x.
These strings are not part of the requests, except in the case \377\377,
where the request contains one \377. */
static int ftp_RecvCommand( vlc_object_t *obj, access_sys_t *sys,
int *restrict codep, char **restrict strp )
{
if( codep != NULL )
*codep = 500;
if( strp != NULL )
*strp = NULL;
char *resp = net_Gets( obj, sys->fd_cmd, NULL );
if( resp == NULL )
{
msg_Err( obj, "response failure" );
goto error;
}
char *end;
unsigned code = strtoul( resp, &end, 10 );
if( (end - resp) != 3 || (*end != '-' && *end != ' ') )
{
msg_Err( obj, "malformatted response" );
goto error;
}
msg_Dbg( obj, "received response: \"%s\"", resp );
if( *end == '-' ) /* Multi-line response */
{
bool done;
*end = ' ';
do
{
char *line = net_Gets( obj, sys->fd_cmd, NULL );
if( line == NULL )
{
msg_Err( obj, "response failure" );
goto error;
}
done = !strncmp( resp, line, 4 );
free( line );
}
while( !done );
}
if( codep != NULL )
*codep = code;
if( strp != NULL )
*strp = resp;
else
free( resp );
return code / 100;
error:
free( resp );
return -1;
}
static int ftp_StartStream( vlc_object_t *, access_sys_t *, uint64_t );
static int ftp_StopStream ( vlc_object_t *, access_sys_t * );
......@@ -164,7 +234,7 @@ static int Login( vlc_object_t *p_access, access_sys_t *p_sys )
return -1;
}
while( ftp_ReadCommand( p_access, p_sys, &i_answer, NULL ) == 1 );
while( ftp_RecvCommand( p_access, p_sys, &i_answer, NULL ) == 1 );
if( i_answer / 100 != 2 )
{
......@@ -184,7 +254,7 @@ static int Login( vlc_object_t *p_access, access_sys_t *p_sys )
return -1;
if( ftp_SendCommand( p_access, p_sys, "USER %s", psz ) < 0 ||
ftp_ReadCommand( p_access, p_sys, &i_answer, NULL ) < 0 )
ftp_RecvCommand( p_access, p_sys, &i_answer, NULL ) < 0 )
{
free( psz );
return -1;
......@@ -206,7 +276,7 @@ static int Login( vlc_object_t *p_access, access_sys_t *p_sys )
return -1;
if( ftp_SendCommand( p_access, p_sys, "PASS %s", psz ) < 0 ||
ftp_ReadCommand( p_access, p_sys, &i_answer, NULL ) < 0 )
ftp_RecvCommand( p_access, p_sys, &i_answer, NULL ) < 0 )
{
free( psz );
return -1;
......@@ -223,7 +293,7 @@ static int Login( vlc_object_t *p_access, access_sys_t *p_sys )
psz = var_InheritString( p_access, "ftp-account" );
if( ftp_SendCommand( p_access, p_sys, "ACCT %s",
psz ) < 0 ||
ftp_ReadCommand( p_access, p_sys, &i_answer, NULL ) < 0 )
ftp_RecvCommand( p_access, p_sys, &i_answer, NULL ) < 0 )
{
free( psz );
return -1;
......@@ -271,7 +341,7 @@ static int Connect( vlc_object_t *p_access, access_sys_t *p_sys )
return -1;
}
if( ftp_ReadCommand( p_access, p_sys, NULL, NULL ) == 2 )
if( ftp_RecvCommand( p_access, p_sys, NULL, NULL ) == 2 )
{
if( net_GetPeerAddress( p_sys->fd_cmd, p_sys->sz_epsv_ip, NULL ) )
{
......@@ -298,7 +368,7 @@ static int Connect( vlc_object_t *p_access, access_sys_t *p_sys )
/* check binary mode support */
if( ftp_SendCommand( p_access, p_sys, "TYPE I" ) < 0 ||
ftp_ReadCommand( p_access, p_sys, NULL, NULL ) != 2 )
ftp_RecvCommand( p_access, p_sys, NULL, NULL ) != 2 )
{
msg_Err( p_access, "cannot set binary transfer mode" );
net_Close( p_sys->fd_cmd );
......@@ -379,7 +449,7 @@ static int InOpen( vlc_object_t *p_this )
if( ftp_SendCommand( p_this, p_sys, "SIZE %s", p_sys->url.psz_path ) < 0 )
goto error;
else
if ( ftp_ReadCommand( p_this, p_sys, NULL, &psz_arg ) == 2 )
if ( ftp_RecvCommand( p_this, p_sys, NULL, &psz_arg ) == 2 )
{
p_access->info.i_size = atoll( &psz_arg[4] );
free( psz_arg );
......@@ -389,7 +459,7 @@ static int InOpen( vlc_object_t *p_this )
if( ftp_SendCommand( p_this, p_sys, "CWD %s", p_sys->url.psz_path ) < 0 )
goto error;
else
if( ftp_ReadCommand( p_this, p_sys, NULL, NULL ) != 2 )
if( ftp_RecvCommand( p_this, p_sys, NULL, NULL ) != 2 )
{
msg_Err( p_access, "file or directory does not exist" );
goto error;
......@@ -473,7 +543,7 @@ static void Close( vlc_object_t *p_access, access_sys_t *p_sys )
}
else
{
ftp_ReadCommand( p_access, p_sys, NULL, NULL );
ftp_RecvCommand( p_access, p_sys, NULL, NULL );
}
net_Close( p_sys->fd_cmd );
......@@ -649,75 +719,6 @@ static int Control( access_t *p_access, int i_query, va_list args )
return VLC_SUCCESS;
}
/* TODO support this s**t :
RFC 959 allows the client to send certain TELNET strings at any moment,
even in the middle of a request:
* \377\377.
* \377\376x where x is one byte.
* \377\375x where x is one byte. The server is obliged to send \377\374x
* immediately after reading x.
* \377\374x where x is one byte.
* \377\373x where x is one byte. The server is obliged to send \377\376x
* immediately after reading x.
* \377x for any other byte x.
These strings are not part of the requests, except in the case \377\377,
where the request contains one \377. */
static int ftp_ReadCommand( vlc_object_t *p_access, access_sys_t *p_sys,
int *pi_answer, char **ppsz_answer )
{
char *psz_line;
int i_answer;
psz_line = net_Gets( p_access, p_sys->fd_cmd, NULL );
if( psz_line == NULL || strlen( psz_line ) < 3 )
{
msg_Err( p_access, "cannot get answer" );
free( psz_line );
if( pi_answer ) *pi_answer = 500;
if( ppsz_answer ) *ppsz_answer = NULL;
return -1;
}
msg_Dbg( p_access, "answer=%s", psz_line );
if( psz_line[3] == '-' ) /* Multiple response */
{
char end[4];
memcpy( end, psz_line, 3 );
end[3] = ' ';
for( ;; )
{
char *psz_tmp = net_Gets( p_access, p_sys->fd_cmd, NULL );
if( psz_tmp == NULL ) /* Error */
break;
if( !strncmp( psz_tmp, end, 4 ) )
{
free( psz_tmp );
break;
}
free( psz_tmp );
}
}
i_answer = atoi( psz_line );
if( pi_answer ) *pi_answer = i_answer;
if( ppsz_answer )
{
*ppsz_answer = psz_line;
}
else
{
free( psz_line );
}
return( i_answer / 100 );
}
static int ftp_StartStream( vlc_object_t *p_access, access_sys_t *p_sys,
uint64_t i_start )
{
......@@ -729,7 +730,7 @@ static int ftp_StartStream( vlc_object_t *p_access, access_sys_t *p_sys,
assert( p_sys->fd_data == -1 );
if( ( ftp_SendCommand( p_access, p_sys, *psz_ip ? "EPSV" : "PASV" ) < 0 )
|| ( ftp_ReadCommand( p_access, p_sys, &i_answer, &psz_arg ) != 2 ) )
|| ( ftp_RecvCommand( p_access, p_sys, &i_answer, &psz_arg ) != 2 ) )
{
msg_Err( p_access, "cannot set passive mode" );
return VLC_EGENERIC;
......@@ -777,7 +778,7 @@ static int ftp_StartStream( vlc_object_t *p_access, access_sys_t *p_sys,
msg_Dbg( p_access, "ip:%s port:%d", psz_ip, i_port );
if( ftp_SendCommand( p_access, p_sys, "TYPE I" ) < 0 ||
ftp_ReadCommand( p_access, p_sys, &i_answer, NULL ) != 2 )
ftp_RecvCommand( p_access, p_sys, &i_answer, NULL ) != 2 )
{
msg_Err( p_access, "cannot set binary transfer mode" );
return VLC_EGENERIC;
......@@ -786,7 +787,7 @@ static int ftp_StartStream( vlc_object_t *p_access, access_sys_t *p_sys,
if( i_start > 0 )
{
if( ftp_SendCommand( p_access, p_sys, "REST %"PRIu64, i_start ) < 0 ||
ftp_ReadCommand( p_access, p_sys, &i_answer, NULL ) > 3 )
ftp_RecvCommand( p_access, p_sys, &i_answer, NULL ) > 3 )
{
msg_Err( p_access, "cannot set restart offset" );
return VLC_EGENERIC;
......@@ -806,7 +807,7 @@ static int ftp_StartStream( vlc_object_t *p_access, access_sys_t *p_sys,
if( p_sys->directory )
{
if( ftp_SendCommand( p_access, p_sys, "NLST" ) < 0 ||
ftp_ReadCommand( p_access, p_sys, NULL, &psz_arg ) > 2 )
ftp_RecvCommand( p_access, p_sys, NULL, &psz_arg ) > 2 )
{
msg_Err( p_access, "cannot list directory contents" );
return VLC_EGENERIC;
......@@ -819,7 +820,7 @@ static int ftp_StartStream( vlc_object_t *p_access, access_sys_t *p_sys,
if( ftp_SendCommand( p_access, p_sys, "%s %s",
p_sys->out ? "STOR" : "RETR",
p_sys->url.psz_path ) < 0
|| ftp_ReadCommand( p_access, p_sys, &i_answer, NULL ) > 2 )
|| ftp_RecvCommand( p_access, p_sys, &i_answer, NULL ) > 2 )
{
msg_Err( p_access, "cannot retrieve file" );
return VLC_EGENERIC;
......@@ -847,10 +848,10 @@ static int ftp_StopStream ( vlc_object_t *p_access, access_sys_t *p_sys )
net_Close( p_sys->fd_data );
p_sys->fd_data = -1;
/* Read the final response from RETR/STOR, i.e. 426 or 226 */
ftp_ReadCommand( p_access, p_sys, NULL, NULL );
ftp_RecvCommand( p_access, p_sys, NULL, NULL );
}
/* Read the response from ABOR, i.e. 226 or 225 */
ftp_ReadCommand( p_access, p_sys, NULL, NULL );
ftp_RecvCommand( p_access, p_sys, NULL, NULL );
return VLC_SUCCESS;
}
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