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1.1 root 1: /* smbtxt.c */
2:
3: /* Synchronet message base (SMB) message text library routines */
4:
1.1.1.2 ! root 5: /* $Id: smbtxt.c,v 1.17 2007/08/12 19:24:08 deuce Exp $ */
1.1 root 6:
7: /****************************************************************************
8: * @format.tab-size 4 (Plain Text/Source Code File Header) *
9: * @format.use-tabs true (see http://www.synchro.net/ptsc_hdr.html) *
10: * *
11: * Copyright 2005 Rob Swindell - http://www.synchro.net/copyright.html *
12: * *
13: * This library is free software; you can redistribute it and/or *
14: * modify it under the terms of the GNU Lesser General Public License *
15: * as published by the Free Software Foundation; either version 2 *
16: * of the License, or (at your option) any later version. *
17: * See the GNU Lesser General Public License for more details: lgpl.txt or *
18: * http://www.fsf.org/copyleft/lesser.html *
19: * *
20: * Anonymous FTP access to the most recent released source is available at *
21: * ftp://vert.synchro.net, ftp://cvs.synchro.net and ftp://ftp.synchro.net *
22: * *
23: * Anonymous CVS access to the development source and modification history *
24: * is available at cvs.synchro.net:/cvsroot/sbbs, example: *
25: * cvs -d :pserver:[email protected]:/cvsroot/sbbs login *
26: * (just hit return, no password is necessary) *
27: * cvs -d :pserver:[email protected]:/cvsroot/sbbs checkout src *
28: * *
29: * For Synchronet coding style and modification guidelines, see *
30: * http://www.synchro.net/source.html *
31: * *
32: * You are encouraged to submit any modifications (preferably in Unix diff *
33: * format) via e-mail to [email protected] *
34: * *
35: * Note: If this box doesn't appear square, then you need to fix your tabs. *
36: ****************************************************************************/
37:
38: /* ANSI */
39: #include <stdlib.h> /* malloc/realloc/free */
40: #include <string.h> /* strlen */
41:
42: /* SMB-specific */
43: #include "smblib.h"
44:
45: char* SMBCALL smb_getmsgtxt(smb_t* smb, smbmsg_t* msg, ulong mode)
46: {
47: char* buf;
48: char* lzhbuf;
49: char* p;
50: char* str;
1.1.1.2 ! root 51: uint16_t xlat;
1.1 root 52: uint i;
53: int lzh; /* BOOL */
54: long l=0,lzhlen,length;
55:
56: if((buf=(char*)malloc(sizeof(char)))==NULL) {
57: sprintf(smb->last_error
58: ,"malloc failure of %u bytes for buffer"
59: ,sizeof(char));
60: return(NULL);
61: }
62: *buf=0;
63:
64: if(!(mode&GETMSGTXT_NO_HFIELDS)) {
65: for(i=0;i<(uint)msg->total_hfields;i++) { /* comment headers are part of text */
66: if(msg->hfield[i].type!=SMB_COMMENT && msg->hfield[i].type!=SMTPSYSMSG)
67: continue;
68: str=(char*)msg->hfield_dat[i];
69: length=strlen(str)+2; /* +2 for crlf */
70: if((p=(char*)realloc(buf,l+length+1))==NULL) {
71: sprintf(smb->last_error
72: ,"realloc failure of %ld bytes for comment buffer"
73: ,l+length+1);
74: return(buf);
75: }
76: buf=p;
77: l+=sprintf(buf+l,"%s\r\n",str);
78: }
79: }
80:
81: for(i=0;i<(uint)msg->hdr.total_dfields;i++) {
82: if(msg->dfield[i].length<=sizeof(xlat))
83: continue;
84: switch(msg->dfield[i].type) {
85: case TEXT_BODY:
86: if(mode&GETMSGTXT_NO_BODY)
87: continue;
88: break;
89: case TEXT_TAIL:
90: if(!(mode&GETMSGTXT_TAILS))
91: continue;
92: break;
93: default: /* ignore other data types */
94: continue;
95: }
96: fseek(smb->sdt_fp,msg->hdr.offset+msg->dfield[i].offset
97: ,SEEK_SET);
98: fread(&xlat,sizeof(xlat),1,smb->sdt_fp);
99: lzh=0;
100: if(xlat==XLAT_LZH) {
101: lzh=1;
102: fread(&xlat,sizeof(xlat),1,smb->sdt_fp);
103: }
104: if(xlat!=XLAT_NONE) /* no other translations currently supported */
105: continue;
106:
107: length=msg->dfield[i].length-sizeof(xlat);
108: if(lzh) {
109: length-=sizeof(xlat);
110: if(length<1)
111: continue;
112: if((lzhbuf=(char*)malloc(length))==NULL) {
113: sprintf(smb->last_error
114: ,"malloc failure of %ld bytes for LZH buffer"
115: ,length);
116: return(buf);
117: }
118: smb_fread(smb,lzhbuf,length,smb->sdt_fp);
1.1.1.2 ! root 119: lzhlen=*(int32_t*)lzhbuf;
1.1 root 120: if((p=(char*)realloc(buf,l+lzhlen+3L))==NULL) {
121: sprintf(smb->last_error
122: ,"realloc failure of %ld bytes for text buffer"
123: ,l+lzhlen+3L);
124: free(lzhbuf);
125: return(buf);
126: }
127: buf=p;
128: lzh_decode((char*)lzhbuf,length,(char*)buf+l);
129: free(lzhbuf);
130: l+=lzhlen;
131: }
132: else {
133: if((p=(char*)realloc(buf,l+length+3L))==NULL) {
134: sprintf(smb->last_error
135: ,"realloc failure of %ld bytes for text buffer"
136: ,l+length+3L);
137: return(buf);
138: }
139: buf=p;
140: p=buf+l;
141: l+=fread(p,1,length,smb->sdt_fp);
142: }
143: if(!l)
144: continue;
145: l--;
146: while(l && buf[l]==0) l--;
147: l++;
148: *(buf+l)='\r'; /* CR */
149: l++;
150: *(buf+l)='\n'; /* LF */
151: l++;
152: *(buf+l)=0;
153: }
154:
155: return(buf);
156: }
157:
158: void SMBCALL smb_freemsgtxt(char* buf)
159: {
160: if(buf!=NULL)
161: free(buf);
162: }
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