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1.1 root 1: /* pktdump.c */
2:
3: /* $Id: pktdump.c,v 1.1 2006/12/28 08:36:00 rswindell Exp $ */
4:
5: #include "fidodefs.h"
6: #include "sbbsdefs.h" /* faddr_t */
7:
8: FILE* nulfp;
9: FILE* bodyfp;
10:
11: /****************************************************************************/
12: /* Returns an ASCII string for FidoNet address 'addr' */
13: /****************************************************************************/
14: char *faddrtoa(faddr_t* addr, char* outstr)
15: {
16: static char str[64];
17: char point[25];
18:
19: if(addr==NULL)
20: return("0:0/0");
21: sprintf(str,"%hu:%hu/%hu",addr->zone,addr->net,addr->node);
22: if(addr->point) {
23: sprintf(point,".%hu",addr->point);
24: strcat(str,point); }
25: if(outstr==NULL)
26: return(str);
27: strcpy(outstr,str);
28: return(outstr);
29: }
30:
31: char* freadstr(FILE* fp, char* str, size_t maxlen)
32: {
33: int ch;
34: size_t len=0;
35:
36: while((ch=fgetc(fp))!=EOF && len<maxlen) {
37: str[len++]=ch;
38: if(ch==0)
39: break;
40: }
41:
42: str[maxlen-1]=0;
43:
44: return(str);
45: }
46:
47:
48: int pktdump(FILE* fp, const char* fname)
49: {
50: int ch,lastch;
51: char buf[128];
52: char origdomn[16]="";
53: char destdomn[16]="";
54: char to[FIDO_NAME_LEN];
55: char from[FIDO_NAME_LEN];
56: char subj[FIDO_SUBJ_LEN];
57: long offset;
58: faddr_t orig;
59: faddr_t dest;
60: fpkthdr_t pkthdr;
61: fpkdmsg_t pkdmsg;
62:
63: if(fread(&pkthdr,sizeof(BYTE),sizeof(pkthdr),fp)!=sizeof(pkthdr)) {
64: fprintf(stderr,"%s !Error reading pkthdr (%u bytes)\n"
65: ,fname,sizeof(pkthdr));
66: return(-1);
67: }
68:
69: fseek(fp,-2L,SEEK_END);
70: fread(buf,sizeof(BYTE),sizeof(buf),fp);
71: if(memcmp(buf,"\x00\x00",2)) {
72: fprintf(stderr,"%s !Packet missing terminating nulls: %02X %02X\n"
73: ,fname,buf[0],buf[1]);
74: // return(-2);
75: }
76:
77: orig.zone=pkthdr.origzone;
78: orig.net=pkthdr.orignet;
79: orig.node=pkthdr.orignode;
80: orig.point=0;
81:
82: dest.zone=pkthdr.destzone;
83: dest.net=pkthdr.destnet;
84: dest.node=pkthdr.destnode;
85: dest.point=0; /* No point info in the 2.0 hdr! */
86:
87: printf("%s Packet Type ", fname);
88:
89: if(pkthdr.fill.two_plus.cword==_rotr(pkthdr.fill.two_plus.cwcopy,8) /* 2+ Packet Header */
90: && pkthdr.fill.two_plus.cword&1) {
91: fprintf(stdout,"2+");
92: dest.point=pkthdr.fill.two_plus.destpoint;
93: } else if(pkthdr.baud==2) { /* Type 2.2 Packet Header */
94: fprintf(stdout,"2.2");
95: dest.point=pkthdr.month;
96: sprintf(origdomn,"@%s",pkthdr.fill.two_two.origdomn);
97: sprintf(destdomn,"@%s",pkthdr.fill.two_two.destdomn);
98: } else
99: fprintf(stdout,"2.0");
100:
101: printf(" from %s%s",faddrtoa(&orig,NULL),origdomn);
102: printf(" to %s%s\n" ,faddrtoa(&dest,NULL),destdomn);
103:
104: fseek(fp,sizeof(pkthdr),SEEK_SET);
105:
106: /* Read/Display packed messages */
107: while(!feof(fp)) {
108:
109: printf("%08lX\n",offset=ftell(fp));
110:
111: /* Read fixed-length header fields */
112: if(fread(&pkdmsg,sizeof(BYTE),sizeof(pkdmsg),fp)!=sizeof(pkdmsg))
113: break;
114: /* Display fixed-length fields */
115: printf("%s %06lX Packed Message Type: %d from %u/%u to %u/%u\n"
116: ,fname
117: ,offset
118: ,pkdmsg.type
119: ,pkdmsg.orignet, pkdmsg.orignode
120: ,pkdmsg.destnet, pkdmsg.destnode);
121: printf("Attribute: %04X\n",pkdmsg.attr);
122: printf("Date/Time: %s\n",pkdmsg.time);
123:
124: /* Read variable-length header fields */
125: freadstr(fp,to,sizeof(to));
126: freadstr(fp,from,sizeof(from));
127: freadstr(fp,subj,sizeof(subj));
128:
129: /* Display variable-length fields */
130: printf("%-4s : %s\n","To",to);
131: printf("%-4s : %s\n","From",from);
132: printf("%-4s : %s\n","Subj",subj);
133:
134: fprintf(bodyfp,"\n-start of message text-\n");
135:
136: while((ch=fgetc(fp))!=EOF && ch!=0) {
137: if(lastch=='\r' && ch!='\n')
138: fputc('\n',bodyfp);
139: fputc(lastch=ch,bodyfp);
140: }
141:
142: fprintf(bodyfp,"\n-end of message text-\n");
143: }
144:
145: return(0);
146: }
147:
148: int main(int argc, char** argv)
149: {
150: FILE* fp;
151: int i;
152:
153: if((nulfp=fopen(_PATH_DEVNULL,"w+"))==NULL) {
154: perror(_PATH_DEVNULL);
155: return -1;
156: }
157: bodyfp=nulfp;
158:
159: if(sizeof(fpkthdr_t)!=FIDO_PACKET_HDR_LEN) {
160: printf("sizeof(fpkthdr_t)=%d, expected: %d\n",sizeof(fpkthdr_t),FIDO_PACKET_HDR_LEN);
161: return(-1);
162: }
163: if(sizeof(fpkdmsg_t)!=FIDO_PACKED_MSG_HDR_LEN) {
164: printf("sizeof(fpkdmsg_t)=%d, expected: %d\n",sizeof(fpkdmsg_t),FIDO_PACKED_MSG_HDR_LEN);
165: return(-1);
166: }
167: if(sizeof(fmsghdr_t)!=FIDO_STORED_MSG_HDR_LEN) {
168: printf("sizeof(fmsghdr_t)=%d, expected: %d\n",sizeof(fmsghdr_t),FIDO_STORED_MSG_HDR_LEN);
169: return(-1);
170: }
171:
172: for(i=1;i<argc;i++) {
173: if(argv[i][0]=='-') {
174: switch(tolower(argv[i][1])) {
175: case 'b':
176: bodyfp=stdout;;
177: break;
178: default:
179: printf("usage: pktdump [-text] <files.pkt>\n");
180: return(0);
181: }
182: continue;
183: }
184: fprintf(stdout,"Opening %s\n",argv[i]);
185: if((fp=fopen(argv[i],"rb"))==NULL) {
186: perror(argv[i]);
187: continue;
188: }
189: pktdump(fp, argv[i]);
190: fclose(fp);
191: }
192:
193: return(0);
194: }
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