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messages.c
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messages.c
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/**********************************************************************
R O L I B
Remote Operations Library
Datei: messages.c
Version: 1.5
Datum: 96/11/28 11:47:59
(c) CR by Herlitz AG
**********************************************************************
Funktion: Message-Funktionen fuer die ROLIB
Autor: Destailleur, Lubitz
Message-Aufbau
--------------
Die einzelnen Messages sind in Units unterteilt, die einen C-Typ besitzen.
Pro Message darf nur ein Unit vom Typ VCHAR oder DATA auftreten und zwar
an der vorletzten Stelle der Message !!!
Send: Entsprechend Aufbau der Message-Units ro_messages
(Messages bestehen aus Units)
- Speicherallokierung laut externe Ldnge der Message-Units-Strukturen
- Konvertierung der Eingabe-Daten in die Message-Unit->Daten
unter Ber|cksichtigung des C-Typs, der UNIT_MAXLEN (ev. Zerlegung)
- Escape-Bearbeitung der Units-Daten
- Nach Berabeitung aller bettroffenen Message-Units versorgen folgender
Message-Felder:
* MA
* Message-Ldnge
* Message-Nr
* ME
- Entladen und Senden |ber Socket der Unit-Liste mit Blvcken vom
max. Ldnge TCP_MAXLEN
- Freigabe des List-Speichers
- Rueckgabe der Anzahl von gelesenen Bytes oder -1 by Fehler
Rec.: Entsprechend Aufbau der Message-units-Tabelle
- Lesen aus Socket in der gemeinsamen Header-Laenge
- Konvertieren und kopieren der Header-Daten (u.a. Message-Laenge)
- Unitweise Lesen von Maximum TCP_MAXLEN Bytes und
kopieren direkt in die Ausgabe-Daten
- Berechnen der Rest-Laenge fuer Unittyp _VCHAR oder _DATA
*/
static char V_messages[]="@(#)messages.c 1.5 vom 96/11/28 (c) CR by Herlitz AG";
#ifdef TANDEM
#include "unixincl.messages"
#else
#include "messages.h"
#endif
#define TCP_MAXLEN 1024
#define UNIT_MAXLEN 1024*4
#define _CHAR 0x01 /* Interne C-Datentypen */
#define _VCHAR 0x02
#define _DATA 0x04
#define _USHORT 0x08
#define _INT 0x10
#define _ULONG 0x20
/* Flags zur Steuerung der Bearbeitung */
#define _RCV 0x0001 /* - Steuerung der Grund-Bearbeitung (I/O) */
#define _SND 0x0002
#define _MMA 0x0004 /* - Gemeinsame Message units */
#define _LEN 0x0008
#define _MES 0x0010
#define _EVT 0x0020
#define _MME 0x0040
#define _ESC 0x0100
#define _ASC 0x0200 /* Immer ASCII im Message */
#define _COD 0x0400 /* Unveraendert, wenn transparent */
#define MAXEVENT 9
#define DEBUG_MSG_ERR 7
#define DEBUG_MSG_TCP 8
#define DEBUG_MSG_ALL 9
#define ERR_MSG_ALLOC 100
#define ERR_MSG_TCP 101
#define ERR_MSG_ROLIB 102
#define _LINE "-----------------------------------------------------------\n"
static struct common_header common_hd;
static struct msg_unit ro_messages[] =
{
/* Gemeinsamer Header */
{0, _SND| _MMA| _ASC, 2L, _CHAR, NULL, common_hd.ma },
{0, _SND| _LEN| _ASC,10L, _ULONG, NULL, &common_hd.len },
{0, _SND| _MES| _ASC, 6L, _ULONG, NULL, &common_hd.nr },
{0, _SND| _EVT| _ASC, 2L, _USHORT, NULL, &common_hd.eventnr },
/* Verbindungsaufforderung */
{1, _SND| _MMA| _ASC, 2L, _CHAR, NULL, common_hd.ma },
{1, _SND| _LEN| _ASC,10L, _ULONG, NULL, &common_hd.len },
{1, _SND| _MES| _ASC, 6L, _ULONG, NULL, NULL },
{1, _SND| _EVT| _ASC, 2L, _USHORT, NULL, NULL },
{1, _SND| _RCV| _ASC,15L, _CHAR, NULL, NULL },
{1, _SND| _RCV| _ASC,15L, _CHAR, NULL, NULL },
{1, _SND| _RCV| _ASC,15L, _CHAR, NULL, NULL },
{1, _SND| _RCV| _ASC,15L, _CHAR, NULL, NULL },
{1, _SND| _RCV| _ASC, 1L, _INT, NULL, NULL },
{1, _SND| _RCV| _ASC, 1L, _CHAR, NULL, NULL },
{1, _SND| _RCV| _ASC, 1L, _INT, NULL, NULL },
{1, _SND| _RCV| _ASC, 6L, _ULONG, NULL, NULL },
{1, _SND| _MME| _ASC, 2L, _CHAR, NULL, common_hd.me },
/* Verbindungs-Bestaetigung */
{2, _SND| _MMA| _ASC, 2L, _CHAR, NULL, common_hd.ma },
{2, _SND| _LEN| _ASC,10L, _ULONG, NULL, &common_hd.len },
{2, _SND| _MES| _ASC, 6L, _ULONG, NULL, NULL },
{2, _SND| _EVT| _ASC, 2L, _USHORT, NULL, NULL },
{2, _SND| _RCV| _ASC, 6L, _ULONG, NULL, NULL },
{2, _SND| _MME| _ASC, 2L, _CHAR, NULL, common_hd.me },
/* Verbindungsabweisung */
{3, _SND| _MMA| _ASC, 2L, _CHAR, NULL, common_hd.ma },
{3, _SND| _LEN| _ASC,10L, _ULONG, NULL, &common_hd.len },
{3, _SND| _MES| _ASC, 6L, _ULONG, NULL, NULL },
{3, _SND| _EVT| _ASC, 2L, _USHORT, NULL, NULL },
{3, _SND| _RCV| _ASC, 4L, _INT, NULL, NULL },
{3, _SND| _RCV| _ASC, 6L, _ULONG, NULL, NULL },
{3, _SND| _RCV| _ASC, 0L, _VCHAR, NULL, NULL },
{3, _SND| _MME| _ASC, 2L, _CHAR, NULL, common_hd.me },
/* Disconnect Aufforderung */
{4, _SND| _MMA| _ASC, 2L, _CHAR, NULL, common_hd.ma },
{4, _SND| _LEN| _ASC,10L, _ULONG, NULL, &common_hd.len },
{4, _SND| _MES| _ASC, 6L, _ULONG, NULL, NULL },
{4, _SND| _EVT| _ASC, 2L, _USHORT, NULL, NULL },
{4, _SND| _RCV| _ASC, 6L, _ULONG, NULL, NULL },
{4, _SND| _MME| _ASC, 2L, _CHAR, NULL, common_hd.me },
/* Disconnect Bestaetigung */
{5, _SND| _MMA| _ASC, 2L, _CHAR, NULL, common_hd.ma },
{5, _SND| _LEN| _ASC,10L, _ULONG, NULL, &common_hd.len },
{5, _SND| _MES| _ASC, 6L, _ULONG, NULL, NULL },
{5, _SND| _EVT| _ASC, 2L, _USHORT, NULL, NULL },
{5, _SND| _RCV| _ASC, 6L, _ULONG, NULL, NULL },
{5, _SND| _MME| _ASC, 2L, _CHAR, NULL, common_hd.me },
/* Disconnect Immediate */
{6, _SND| _MMA| _ASC, 2L, _CHAR, NULL, common_hd.ma },
{6, _SND| _LEN| _ASC,10L, _ULONG, NULL, &common_hd.len },
{6, _SND| _MES| _ASC, 6L, _ULONG, NULL, NULL },
{6, _SND| _EVT| _ASC, 2L, _USHORT, NULL, NULL },
{6, _SND| _RCV| _ASC, 6L, _ULONG, NULL, NULL },
{6, _SND| _MME| _ASC, 2L, _CHAR, NULL, common_hd.me },
/* Invoke Request */
{7, _SND| _MMA| _ASC, 2L, _CHAR, NULL, common_hd.ma },
{7, _SND| _LEN| _ASC,10L, _ULONG, NULL, &common_hd.len },
{7, _SND| _MES| _ASC, 6L, _ULONG, NULL, NULL },
{7, _SND| _EVT| _ASC, 2L, _USHORT, NULL, NULL },
{7, _SND| _RCV| _ASC, 4L, _INT, NULL, NULL },
{7, _SND| _RCV| _ASC, 2L, _INT, NULL, NULL },
{7, _SND| _RCV| _ASC, 6L, _ULONG, NULL, NULL },
{7, _SND| _RCV| _COD, 0L, _DATA, NULL, NULL },
{7, _SND| _MME| _ASC, 2L, _CHAR, NULL, common_hd.me },
/* Invoke Result */
{8, _SND| _MMA| _ASC, 2L, _CHAR, NULL, common_hd.ma },
{8, _SND| _LEN| _ASC,10L, _ULONG, NULL, &common_hd.len },
{8, _SND| _MES| _ASC, 6L, _ULONG, NULL, NULL },
{8, _SND| _EVT| _ASC, 2L, _USHORT, NULL, NULL },
{8, _SND| _RCV| _ASC, 4L, _INT, NULL, NULL },
{8, _SND| _RCV| _ASC, 2L, _INT, NULL, NULL },
{8, _SND| _RCV| _ASC, 6L, _ULONG, NULL, NULL },
{8, _SND| _RCV| _COD, 0L, _DATA, NULL, NULL },
{8, _SND| _MME| _ASC, 2L, _CHAR, NULL, common_hd.me },
/* Invoke Reject */
{9, _SND| _MMA| _ASC, 2L, _CHAR, NULL, common_hd.ma },
{9, _SND| _LEN| _ASC,10L, _ULONG, NULL, &common_hd.len },
{9, _SND| _MES| _ASC, 6L, _ULONG, NULL, NULL },
{9, _SND| _EVT| _ASC, 2L, _USHORT, NULL, NULL },
{9, _SND| _RCV| _ASC, 4L, _INT, NULL, NULL },
{9, _SND| _RCV| _ASC, 2L, _INT, NULL, NULL },
{9, _SND| _RCV| _ASC, 4L, _INT, NULL, NULL },
{9, _SND| _RCV| _ASC, 6L, _ULONG, NULL, NULL },
{9, _SND| _RCV| _COD, 0L, _DATA, NULL, NULL },
{9, _SND| _MME| _ASC, 2L, _CHAR, NULL, common_hd.me },
/* Tab-EOF */
{10, 0 , 0L, _INT , NULL, NULL }
}; /* --> Ende Send-Message-Structure */
static int ebcdic_ascii7[] =
{
/* 0 1 2 3 4 5 6 7 */
/* 8 9 A B C D E F */
0x00, 0x01, 0x02, 0x03, 0x00, 0x09, 0x00, 0x7f, /* 0 */
0x00, 0x00, 0x00, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x00, 0x0a, 0x08, 0x00, /* 1 */
0x18, 0x19, 0x00, 0x00, 0x1c, 0x1d, 0x1e, 0x1f,
0x00, 0x00, 0x00, 0x00, 0x00, 0x0a, 0x17, 0x1b, /* 2 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x06, 0x07,
0x00, 0x00, 0x16, 0x00, 0x00, 0x00, 0x00, 0x04, /* 3 */
0x00, 0x00, 0x00, 0x00, 0x14, 0x15, 0x00, 0x1a,
0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 4 */
0x00, 0x24, 0x60, 0x2e, 0x3c, 0x28, 0x2b, 0xf6,
0x26, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 5 */
0x00, 0x00, 0x21, 0x24, 0x2a, 0x29, 0x3b, 0x00,
0x2d, 0x2f, 0x40, 0x5b, 0x5d, 0x00, 0x00, 0x7e, /* 6 */
0x00, 0x00, 0x5e, 0x2c, 0x25, 0x5f, 0x3e, 0x3f,
/* 0 1 2 3 4 5 6 7 */
/* 8 9 A B C D E F */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 7 */
0x00, 0x60, 0x3a, 0x23, 0x40, 0x27, 0x3d, 0x22,
0x00, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, /* 8 */
0x68, 0x69, 0x00, 0x5b, 0x5c, 0x5d, 0x00, 0x00,
0x00, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, /* 9 */
0x71, 0x72, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x7e, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, /* A */
0x79, 0x7a, 0x00, 0x7b, 0x7c, 0x7d, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* B */
0x00, 0x00, 0x00, 0xc4, 0xd6, 0xdc, 0x00, 0x00,
0x7b, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, /* C */
0x48, 0x49, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x7d, 0x4a, 0x4b, 0x4c, 0x4d, 0x4e, 0x4f, 0x50, /* D */
0x51, 0x52, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x5c, 0x00, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, /* E */
0x59, 0x5a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, /* F */
0x38, 0x39, 0x00, 0xe4, 0x00, 0xfc, 0x00, 0xdf
};
static int ascii7_ebcdic[] =
{
/* 0 1 2 3 4 5 6 7 */
/* 8 9 A B C D E F */
0x00, 0x01, 0x02, 0x03, 0x37, 0x2d, 0x2e, 0x2f, /* 0 */
0x16, 0x05, 0x25, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
0x10, 0x11, 0x12, 0x13, 0x3c, 0x3d, 0x32, 0x26, /* 1 */
0x18, 0x19, 0x3f, 0x27, 0x1c, 0x1d, 0x1e, 0x1f,
0x40, 0x5a, 0x7f, 0x7b, 0x5b, 0x6c, 0x50, 0x7d, /* 2 */
0x4d, 0x5d, 0x5c, 0x4e, 0x6b, 0x60, 0x4b, 0x61,
0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, /* 3 */
0xf8, 0xf9, 0x7a, 0x5e, 0x4c, 0x7e, 0x6e, 0x6f,
0x7c, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, /* 4 */
0xc8, 0xc9, 0xd1, 0xd2, 0xd3, 0xd4, 0xd5, 0xd6,
0xd7, 0xd8, 0xd9, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, /* 5 */
0xe7, 0xe8, 0xe9, 0xbb, 0xbc, 0xbd, 0x6a, 0x6d,
0x4a, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, /* 6 */
0x88, 0x89, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96,
/* 0 1 2 3 4 5 6 7 */
/* 8 9 A B C D E F */
0x97, 0x98, 0x99, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, /* 7 */
0xa7, 0xa8, 0xa9, 0xfb, 0x4f, 0xfd, 0x67, 0x07,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 8 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* 9 */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* A */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, /* B */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0xbb, 0x00, 0x00, 0x00, /* C */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xbc, 0x00, /* D */
0x00, 0x00, 0x00, 0x00, 0xbd, 0x00, 0x00, 0xff,
0x00, 0x00, 0x00, 0x00, 0xfb, 0x00, 0x00, 0x00, /* E */
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x4f, 0x00, /* F */
0x00, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x00, 0x00
};
static struct index msg_idx[MAXEVENT+1]; /* Index-Tabelle auf message Units */
BOOLEAN indexing (struct msg_unit structure[], struct index idx[])
{
int i = 0,j;
BOOLEAN rc=TRUE;
while (structure[i].evt<MAXEVENT+1) {
idx[structure[i].evt].von = j = i;
while(structure[j].evt<MAXEVENT+1 && structure[i].evt==structure[j].evt)
idx[structure[i].evt].bis = j++;
i=j;
}
/* if (structure[j].evt<structure[i].evt)
rc=FALSE; */
return(rc);
}
BOOLEAN message_init()
{
if (!indexing(ro_messages, msg_idx)) {
dprintf(DEBUG_MSG_ERR,"Messages.c: Index auf Message-Units nicht angelegt\n");
return(FALSE);
}
return(TRUE);
}
/*
expand_esc(msg_unit_list *u, char esc)
{
int i;
int nesc = 0;
for (i=0;i<u->len; i++)
if (u->val+i==esc)
nesc++;
if (u->val=realloc(u->val,u->len+nesc)==NULL) {
dprintf(DEBUG_MSG_ERR, "Messages.c: Malloc failed to alloc %d Bytes\n",sizeof(struct msg_unit_list));
return(-1);
}
i=0;
while (i<u->len) {
if (*(u->val+i)==esc) {
for (j=u->len-1;j>i;j--)
*(u->val+j+1)=*(u->val+j);
(u->len)++;
*(u->val+(++i))=esc;
}
i++;
}
}
delete_esc(msg_unit_list *u, char esc)
{
int i = 0,j;
boolean in_double_esc = 0;
while (i<u->len) {
if (*(u->val+i)==esc)
if (in_double_esc) {
for (j=i;j<u->len-1;j++)
*(u->val+j)=*(u->val+j+1);
u->len--;
in_double_esc=FALSE;
}
else
in_double_esc=TRUE;
i++;
}
}
*/
/**************************************************************************
* - Erweitert die Liste um ein Element (u)
* - Allokiert den Data-Bereich u->val in der Laenge nalloc+1
**************************************************************************/
struct msg_unit_list *alloc_msg_unit(int nalloc)
{
char *s;
size_t n = sizeof(struct msg_unit_list);
struct msg_unit_list *u;
/* Alloc List-Element */
u=(struct msg_unit_list *)malloc(n);
if (u==NULL) {
dprintf(DEBUG_MSG_ERR, "Messages.c: Malloc failed to alloc %d Bytes\n",n);
return(u);
}
else {
n=nalloc+1;
if ((s=(char *)malloc(n))==NULL) {
dprintf(DEBUG_MSG_ERR, "Messages.c: Malloc failed to alloc %d Bytes\n",nalloc);
return(NULL);
}
u->len=nalloc; /* Struktur aktualisieren */
u->val=s;
u->next=NULL;
}
return(u);
}
int convert_char(int in, int tocode)
{
if (tocode==RO_ASCII)
return(ebcdic_ascii7[in & 0xff]);
else if (tocode==RO_EBCDIC)
return(ascii7_ebcdic[in & 0xff]);
else
return(in & 0xff);
}
char *convert_str(char *s, int len, int tocode)
{
int i = 0;
while (i<len) {
*(s+i)=convert_char((int)*(s+i), tocode);
i++;
}
return(s);
}
convert_code_send(struct msg_unit_list *u, int mycode, int mode)
{
if (mycode==RO_EBCDIC)
if (u->flags & _ASC)
convert_str(u->val, u->len, RO_ASCII);
else if (u->flags & _COD)
if (!mode) /* Nicht transparent */
convert_str(u->val, u->len, RO_ASCII);
}
convert_code_recv(char *s, int len, int flags, int mycode, int mode)
{
if (mycode==RO_EBCDIC)
if (flags & _ASC)
convert_str(s, len, RO_EBCDIC);
else if (flags & _COD)
if (!mode) /* Nicht transparent */
convert_str(s, len, RO_EBCDIC);
}
struct msg_unit_list *add_msg_unit(struct msg_unit *mes_unit, int nalloc, void *datap)
{
char format[15], *s;
int *int_val;
unsigned short *short_val;
unsigned long *long_val;
struct msg_unit_list *unit_l;
if ((unit_l=alloc_msg_unit(nalloc)) == NULL)
return NULL;
s=format;
if (mes_unit->ityp & _INT) {
int_val=(int *)datap;
sprintf(s,"%05d",*int_val);
s=s+strlen(s)-nalloc;
bcopy(s, unit_l->val, nalloc);
}
else if (mes_unit->ityp & _USHORT) {
short_val=(unsigned short *)datap;
sprintf(s,"%05u",*short_val);
s=s+strlen(s)-nalloc;
bcopy(s, unit_l->val, nalloc);
}
else if (mes_unit->ityp & _ULONG) {
long_val=(unsigned long *)datap;
sprintf(s,"%010lu",*long_val);
s=s+strlen(s)-nalloc;
bcopy(s, unit_l->val, nalloc);
}
else if (mes_unit->ityp & _CHAR) {
bcopy((char *)datap,unit_l->val,nalloc);
}
else if (mes_unit->ityp & _VCHAR) {
strcpy(unit_l->val,(char *)datap);
}
else if (mes_unit->ityp & _DATA) {
bcopy((char *)datap,unit_l->val,nalloc);
}
if (mes_unit->ityp & _INT)
dprintf(DEBUG_MSG_ALL, "\t(OUT)\tINT :%d:\n", *int_val);
else if (mes_unit->ityp & _USHORT)
dprintf(DEBUG_MSG_ALL, "\t(OUT)\tUSHORT:%u:\n", *short_val);
else if (mes_unit->ityp & _ULONG)
dprintf(DEBUG_MSG_ALL, "\t(OUT)\tLONG :%lu:\n", *long_val);
else if (mes_unit->ityp & _CHAR)
dprintf(DEBUG_MSG_ALL, "\t(OUT)\tCHAR :%*.*s:\n", nalloc, nalloc, unit_l->val);
else if (mes_unit->ityp & _VCHAR)
dprintf(DEBUG_MSG_ALL, "\t(OUT)\tVCHAR :%*.*s:\n", nalloc, nalloc, unit_l->val);
else if (mes_unit->ityp & _DATA)
dprintf(DEBUG_MSG_ALL, "\t(OUT)\tDATA :%*.*s:\n",nalloc,nalloc,unit_l->val);
return(unit_l);
}
unit_list_free (struct msg_unit_list *u)
{
struct msg_unit_list *udel;
while (u) {
udel=u;
u=u->next;
free(udel->val);
free(udel);
}
}
int send_tcp_frame (int sd , char *tcp_frame, int nframe, struct ro_indication *roi)
{
int n = 0;
int nwrite = 0; /* schon geschrieben = 0 */
dprintf(DEBUG_MSG_ALL, _LINE);
dprintf(DEBUG_MSG_TCP, "\tTCP_FRAME zu senden(%d Bytes)\n",nframe);
dprintf(DEBUG_MSG_TCP, "\t:%*.*s:\n",nframe,nframe,tcp_frame);
while (n<nframe)
{
if ((n%21)==0)
dprintf(DEBUG_MSG_ALL, "\n\t:");
dprintf(DEBUG_MSG_ALL, "%x:",(int)*(tcp_frame+n++) & 0xff);
};
dprintf(DEBUG_MSG_ALL,"\n");
do {
#ifdef TANDEM
n=send_nw(sd, &tcp_frame[nwrite], nframe-nwrite, 0, 1);
if (n!=0)
{
dprintf(0, "Messages.c: send_nw failed :%s:\n",strerror(errno));
roi->code=ERR_MSG_TCP;
sprintf(roi->text, "send_nw failed :%s:", strerror(errno));
return(-1);
}
{
struct send_nw_str *snw;
int cc, tag;
short err;
if (AWAITIOX(&sd,(char *) &snw, &cc, &tag, -1L)!=CCE)
{
roi->code=ERR_MSG_TCP;
sprintf(roi->text, "AWAITIOX for send_nw failed:", strerror(err));
if (FILE_GETINFO_(sd, &err)==0)
{
dprintf(0, "Messages.c: AWAITIOX for send_nw failed :%s:\n",strerror(err));
strncat(roi->text, strerror(err),160);
}
return(-1);
}
n = snw->nb_sent;
}
#else
n=SOC_SEND(sd, &tcp_frame[nwrite], nframe-nwrite, 0);
#endif
if (n==-1) {
dprintf(DEBUG_MSG_TCP, "Messages.c: SOC_SEND failed :%s:\n",strerror(errno));
roi->code=ERR_MSG_TCP;
sprintf(roi->text, "SOC_SEND failed :%s:", strerror(errno));
return(-1);
}
else if (n==0) {
dprintf(DEBUG_MSG_TCP, "Messages.c: SOC_SEND EOF :%s:\n",strerror(errno));
roi->code=ERR_MSG_TCP;
sprintf(roi->text, "SOC_SEND EOF :%s:", strerror(errno));
return(0);
}
nwrite += n; /* schon auf Socket geschrieben */
} while (nwrite < nframe);
dprintf(DEBUG_MSG_ALL, _LINE);
return (nwrite); /* Bytes gesendet */
}
int send_tcp_message(struct ro_connection *conn, int mycode, struct msg_unit_list *unit_list, struct ro_indication *roi)
{
/* Chained List Message Units */
struct msg_unit_list *unit_l;
char dummy[2*TCP_MAXLEN+4];
char *tcp_buf = dummy+4;
#define TCP_EMPTY 0
#define TCP_FILLED 1
#define TCP_FULL 2
int buffer_status = TCP_EMPTY;
int copy_len;
unsigned long unit_pos, tcpbuf_pos = 0L;
long nsent = 0L;
/* Liste entladen, konvertieren und Message aufbauen */
for (unit_l=unit_list;unit_l;unit_l=unit_l->next) {
convert_code_send(unit_l, mycode, conn->params.mode);
unit_pos = 0L;
while (unit_pos < unit_l->len) {
/* Vorhandener Platz fuer Daten im TCP-Buffer */
copy_len = min(unit_l->len - unit_pos,TCP_MAXLEN - tcpbuf_pos);
if (copy_len==TCP_MAXLEN - tcpbuf_pos)
buffer_status = TCP_FULL;
else
buffer_status = TCP_FILLED;
if (copy_len) {
bcopy(unit_l->val+unit_pos,tcp_buf+tcpbuf_pos,copy_len);
unit_pos += copy_len;
tcpbuf_pos += copy_len;
}
if (buffer_status==TCP_FULL)
if (send_tcp_frame(conn->sock, tcp_buf, tcpbuf_pos, roi)!=tcpbuf_pos)
return(RO_ERROR);
else {
nsent += tcpbuf_pos;
tcpbuf_pos=0L;
buffer_status = TCP_EMPTY;
}
}
}
if (buffer_status!=TCP_EMPTY)
if (send_tcp_frame(conn->sock, tcp_buf, tcpbuf_pos, roi)!=tcpbuf_pos)
return(RO_ERROR);
else {
buffer_status = TCP_EMPTY;
nsent += tcpbuf_pos;
}
unit_list_free(unit_list);
/* Anzahl uebertragener Bytes steht in nsent */
return(RO_OK);
}
update_send_len(struct msg_unit_list *u, unsigned long len)
{
while (u && !(u->flags & _LEN))
u=u->next;
if (u)
sprintf(u->val,"%010lu",len);
else
{
dprintf(DEBUG_MSG_ERR, "Messages.c: Message-Laenge nicht versorgt\n");
return(-1);
}
return(0);
}
int send_message(struct ro_connection *conn, struct ro_application_info *ro_app, struct ro_event *roe, struct ro_indication *roi)
{
char msg_esc;
struct msg_unit_list *ro_send_list, *unitcur, *unitnxt;
int ntoalloc, i;
unsigned long nallocated;
static void *bufp;
char *ro_buffer;
conn->message_nr++;
msg_esc = roe->event_typ <= 3 ? RO_DEFAULT_ESC : conn->params.escape;
common_hd.ma[0]=msg_esc;
common_hd.me[0]=msg_esc;
common_hd.ma[1]='[';
common_hd.me[1]=']';
common_hd.len=0L;
ro_buffer=NULL;
RO_INIT_MSG(roe)
ro_send_list = NULL;
dprintf(DEBUG_MSG_ALL, _LINE);
dprintf(DEBUG_MSG_TCP, "--> SEND-EVENT: %d\n",roe->event_typ);
for (i=msg_idx[roe->event_typ].von; i<=msg_idx[roe->event_typ].bis; i++) {
if (ro_messages[i].flags & _SND) {
nallocated=0;
bufp=ro_messages[i].datap;
while (ro_messages[i].elen > nallocated) {
ntoalloc = min(ro_messages[i].elen - nallocated, UNIT_MAXLEN);
unitnxt=add_msg_unit(&ro_messages[i], ntoalloc, bufp);
if (unitnxt) {
nallocated += unitnxt->len;
bufp = (char *)bufp + unitnxt->len;
unitnxt->flags=ro_messages[i].flags;
if (!ro_send_list)
ro_send_list = unitcur = unitnxt;
else {
unitcur->next = unitnxt;
unitcur=unitcur->next;
}
}
else
{
roi->code=ERR_MSG_ALLOC;
sprintf(roi->text,"Failed to alloc %d Bytes",ntoalloc);
return(RO_ERROR);
}
}
common_hd.len += nallocated;
}
}
/* Ext. Message Laenge anpassen */
if (update_send_len(ro_send_list,common_hd.len)<0)
{
roi->code=ERR_MSG_ALLOC;
sprintf(roi->text,"Failed to update length");
return(RO_ERROR);
}
dprintf(DEBUG_MSG_ERR, "\tMessage gebildet, %5lu Bytes\n",common_hd.len);
return(send_tcp_message(conn, ro_app->charset, ro_send_list, roi));
}
int recv_tcp_frame(int sd, char *tcp_frame, int nlen, struct ro_indication *roi)
{
int nread = 0; /* schon gelesen = 0 */
int n;
dprintf(DEBUG_MSG_ALL, _LINE);
do {
#ifdef TANDEM
n=recv_nw(sd, &tcp_frame[nread], nlen-nread, 0, 1);
if (n!=0)
{
dprintf(0, "Messages.c: recv_nw failed :%s:\n",strerror(errno));
roi->code=ERR_MSG_TCP;
sprintf(roi->text, "recv_nw failed :%s:", strerror(errno));
return(-1);
}
{
long buffer_addr;
short err;
if(AWAITIOX(&sd,&buffer_addr,&n) != CCE)
{
roi->code=ERR_MSG_TCP;
sprintf(roi->text, "AWAITIOX auf recv_nw failed:");
if (FILE_GETINFO_(sd, &err)==0)
{
dprintf(0, "Messages.c: AWAITIOX auf recv_nw failed :%s:\n",strerror(err));
strncat(roi->text, strerror(err),160);
}
return(-1);
}
}
#else
n=SOC_RECV(sd, &tcp_frame[nread], nlen-nread, 0);
#endif
if (n==-1)
{
dprintf(DEBUG_MSG_ERR, "Messages.c: SOC_RECV failed :%s:\n",strerror(errno));
roi->code=ERR_MSG_TCP;
sprintf(roi->text, "SOC_RECV failed :%s:", strerror(errno));
return(-1);
}
else if (n==0)
{
dprintf(DEBUG_MSG_ERR, "Messages.c: SOC_RECV EOF :%s:\n",strerror(errno));
roi->code=ERR_MSG_TCP;
sprintf(roi->text, "SOC_RECV EOF :%s:", strerror(errno));
return(0);
}
dprintf(DEBUG_MSG_TCP, "\tTCP_FRAME received (%d Bytes):\t:%*.*s:\n",n,n,n,&tcp_frame[nread]);
nread += n; /* schon von Socket gelesen */
} while (nread < nlen);
dprintf(DEBUG_MSG_ALL, _LINE);
return (nread); /* Bytes gelesen */
}
int move_recv_unit(char *recv_buf, struct msg_unit *mes_unit, void *datap, int len)
{
int copy_len;
unsigned long *p_long;
unsigned short *p_short;
int *p_int;
char conv[12];
if (mes_unit->ityp & _CHAR) {
copy_len=mes_unit->elen;
bcopy(recv_buf, (char *)datap, copy_len);
}
else if (mes_unit->ityp & _DATA) {
copy_len=len;
bcopy(recv_buf, (char *)datap, copy_len);
*mes_unit->lenp += copy_len;
}
else if (mes_unit->ityp & _VCHAR) {
copy_len=strlen(recv_buf)+1;
strcpy((char *)datap, recv_buf);
}
else if (mes_unit->ityp & _ULONG) {
p_long=(unsigned long *)datap;
copy_len=mes_unit->elen;
strncpy(conv, recv_buf, copy_len);
conv[copy_len]='\0';
*p_long=strtoul(conv,(char **)NULL,10);
}
else if (mes_unit->ityp & _USHORT) {
p_short=(unsigned short *)datap;
copy_len=mes_unit->elen;
strncpy(conv, recv_buf, copy_len);
conv[copy_len]='\0';
*p_short=(unsigned short)strtol(conv,(char **)NULL,10);
}
else if (mes_unit->ityp & _INT) {
p_int=(int *)datap;
copy_len=mes_unit->elen;
strncpy(conv, recv_buf, copy_len);
conv[copy_len]='\0';
*p_int=(int)strtol(conv,(char **)NULL,10);
}
if (mes_unit->ityp & _CHAR)
dprintf(DEBUG_MSG_ALL, "\tCHAR :%*.*s:\n",copy_len,copy_len,recv_buf);
else if (mes_unit->ityp & _DATA)
dprintf(DEBUG_MSG_ALL, "\tDATA :%*.*s:\n",copy_len,copy_len,recv_buf);
else if (mes_unit->ityp & _VCHAR)
dprintf(DEBUG_MSG_ALL, "\tVCHAR :%*.*s:\n",copy_len,copy_len,recv_buf);
else if (mes_unit->ityp & _ULONG)
dprintf(DEBUG_MSG_ALL, "\tLONG :%lu:\n",*p_long);
else if (mes_unit->ityp & _USHORT)
dprintf(DEBUG_MSG_ALL, "\tUSHORT:%d:\n",*p_short);
else if (mes_unit->ityp & _INT)
dprintf(DEBUG_MSG_ALL, "\tINT :%d:\n",*p_int);
return(copy_len);
}
int receive_message(struct ro_connection *conn, int cd, struct ro_application_info *ro_app, struct ro_event *roe, unsigned long maxlen, struct ro_indication *roi)
{
#define MSG_HEADER_LEN 20
#define MSG_TRAILER_LEN 2
char dummy[2*TCP_MAXLEN+4], *tcp_buf = dummy+4, *tcp_buf_cur, *ro_buffer;
static void *bufp;
int h, i, n, ntoread, nread, nmoved;
unsigned long rest_lge, unit_len;
if (cd>=0) {
roe->cd = cd;
conn+=cd;
}
else
{
dprintf(DEBUG_MSG_ERR,"Messages.c: Connection-Index wrong %d", cd);
roi->code=ERR_MSG_ROLIB;
sprintf(roi->text, "Connection-index wrong :%d:", cd);
return(RO_ERROR);
}
tcp_buf_cur=tcp_buf;
ntoread = MSG_HEADER_LEN;
if (ntoread)
if ((nread=recv_tcp_frame(conn->sock, tcp_buf_cur, ntoread, roi))!=ntoread)
{
dprintf(DEBUG_MSG_ERR, "Messages.c: Header nicht empfangen\n");
roi->code=ERR_MSG_ROLIB;
sprintf(roi->text, "Header not received");
return(RO_ERROR);
}
nmoved = 0;
tcp_buf_cur=tcp_buf;
/* Header empfangen */
for (h=msg_idx[0].von; h<=msg_idx[0].bis; h++) {
convert_code_recv(tcp_buf_cur, ro_messages[h].elen, ro_messages[h].flags, ro_app->charset, conn->params.mode);
dprintf(DEBUG_MSG_ALL, "\t(IN)\t:");
n=0;
while (n<ro_messages[h].elen)
{
dprintf(DEBUG_MSG_ALL, "%x:",(int)*(tcp_buf_cur+n++) & 0xff);
}
bufp = ro_messages[h].datap;
if ((nmoved = move_recv_unit(tcp_buf_cur, &ro_messages[h], bufp, ro_messages[h].elen))!=ro_messages[h].elen)
{
dprintf(DEBUG_MSG_ERR, "Messages.c: Header Aufbau falsch (Index:%d)",h);
roi->code=ERR_MSG_ROLIB;
sprintf(roi->text, "Unexpected Header structure (Index %d)", h);
return(RO_ERROR);
}
tcp_buf_cur += nmoved;
}
rest_lge=common_hd.len - MSG_HEADER_LEN;
if (rest_lge > maxlen - sizeof(roe))
{
roi->code=ERR_MSG_ROLIB;
sprintf(roi->text, "Message too long (%5lu)", rest_lge);
dprintf(DEBUG_MSG_ERR, "Messages.c: Message zu lang (%5lu)",rest_lge);
return(0L);
}
roe->event_typ=common_hd.eventnr;
ro_buffer=(char *)roe + sizeof(struct ro_event);
dprintf(DEBUG_MSG_ALL, "\n");
dprintf(DEBUG_MSG_ALL, _LINE);
dprintf(DEBUG_MSG_ALL, "--> RECEIVE-EVENT: %d\n",roe->event_typ);
RO_INIT_MSG(roe) /* Initialisierung von ro_messages */
for (i=msg_idx[roe->event_typ].von+h; i<=msg_idx[roe->event_typ].bis; i++)
{
bufp=ro_messages[i].datap;
if (ro_messages[i].elen) /* Unit-Laenge > 0: abziehen */
{
unit_len=ro_messages[i].elen;
if (unit_len<=rest_lge)
rest_lge -= unit_len;
else
{
dprintf(DEBUG_MSG_ERR, "Messages.c: Falsche Laenge beim Receive\n");
roi->code=ERR_MSG_ROLIB;
sprintf(roi->text, "Message too short (%5lu)", rest_lge);
return(RO_ERROR);
}
}
else /* VCHAR oder DATA */
unit_len=rest_lge - MSG_TRAILER_LEN;
nmoved=0;
while (unit_len > nmoved)
{
ntoread = min(unit_len - nmoved,TCP_MAXLEN);
nread=recv_tcp_frame(conn->sock, tcp_buf, ntoread, roi);
convert_code_recv(tcp_buf, nread, ro_messages[i].flags, ro_app->charset, conn->params.mode);
if (ro_messages[i].flags & _RCV)
{
if (move_recv_unit(tcp_buf,&ro_messages[i],bufp, nread)!=nread)
{
dprintf(DEBUG_MSG_ERR, "Messages.c: Message Aufbau falsch (Index:%d)",i);
roi->code=ERR_MSG_ROLIB;
sprintf(roi->text, "Unexpected Header structure (Index %d)", i);
return(RO_ERROR);
}
else
bufp=(char *)bufp + nread;
}
nmoved +=nread;
}
}
dprintf(DEBUG_MSG_TCP, "\n");
dprintf(DEBUG_MSG_TCP, "\tMessage empfangen, %5lu Bytes\n",common_hd.len);
dprintf(DEBUG_MSG_TCP, _LINE);
/* Anzahl empfangener Bytes steht in common_hd.len */
return(common_hd.len);
}
/******************************* EOF ********************************/