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1.1 root 1: #include <stdio.h>
2: #include <sys/stat.h>
3: #define TRACE printf
4: #define MPATH "/usr/spool/mail/"
5: #define TEMPFILE "/tmp/mbox.new"
6: #define OLDSEP "\001\001\n"
7: #define NEWSEP "\001\001\001\001\n"
8: #define MAXLEN 512
9: #define TRUE 1
10: #define FALSE 0
11:
12: main(argc, argv)
13: int argc;
14: char * argv[];
15:
16: {
17: struct stat sbuf;
18: int status;
19: FILE *infile;
20: FILE *outfile;
21: char filename[66];
22: char fullname[66];
23: char msgline [MAXLEN];
24: int counter = 1;
25: typedef short int bool;
26: bool justsep;
27: char systemcmd [76];
28:
29: if(argc == 1){
30: printf("mailbox to convert? ");
31: scanf("%s", filename);
32: strcpy(fullname, filename);
33: }else{
34: if (argc ==2){
35: strcpy(fullname, argv[1]);
36: }
37:
38: if (argc == 3){
39: if(strlen(argv[1]) <= 2){
40: if( (argv[1][0] == 'm') || (argv[1][1] == 'm')){
41: strcpy(fullname,MPATH);
42: strcat(fullname,argv[2]);
43: }else{
44: printf("invalid argument %s\n",
45: argv[1]);
46: exit(1);
47: }
48: }else{
49: printf("Usage: cvmail [-m] filename\n");
50: exit(1);
51: }
52: }
53: }
54:
55: TRACE("Converting file %s\n", fullname);
56: /* get owner & group information */
57: if( status = stat(fullname,&sbuf)){
58: printf("Cannot stat file %s\n",fullname);
59: exit(1);
60: }
61:
62: if( (infile = fopen(fullname,"r")) == NULL){
63: printf("Cannot open %s for reading!\n", fullname);
64: exit(1);
65: }
66:
67: if( (outfile=fopen(TEMPFILE,"w")) == NULL){
68: printf("Cannot open %s for writing!\n");
69: exit(1);
70: }
71:
72: /* print newsep at top of file */
73: fprintf(outfile,NEWSEP);
74:
75: /* now loop thorugh the file. Read each line and copy it
76: * to the tempfile. If we encounter an oldsep, convert it
77: * to a newsep, acutally 2 newseps, since we end a message
78: * with a sep and begin a message with a sep. The 2nd sep
79: * becomes the start sep for the next msg.
80: */
81:
82: /* justsep is a boolean use to determine if we just wrote a
83: * new msgsep. If we did, then we want to write another to begin
84: * the next message. This will prevent 2 seps from appearing
85: * at the end of the new file.
86: */
87:
88: justsep = FALSE;
89: while (fgets(msgline,MAXLEN,infile) != NULL){
90:
91: if(justsep == TRUE){
92: fprintf(outfile,NEWSEP);
93: justsep = FALSE;
94: counter++;
95: }
96:
97: if(strcmp(OLDSEP,msgline) == 0){
98: strcpy(msgline,NEWSEP);
99: justsep = TRUE;
100: }
101:
102: fputs(msgline, outfile);
103: }
104:
105: /* we're done reading and writing, close the files */
106: fclose(infile);
107: fclose(outfile);
108:
109: /* delete old mailbox */
110: if ( 0 != unlink(fullname)){
111: printf("Could not delete old mailbox. The converted mailbox is at: %s\n",TEMPFILE);
112: exit(1);
113: }
114:
115: /* copy new mailbox to old */
116:
117: if( 0 != link(TEMPFILE, fullname)){
118: sprintf(systemcmd,"/bin/cp %s %s",TEMPFILE, fullname);
119: if ( system(systemcmd) == -1){
120: printf("Could not copy converted mailbox to destination. The ");
121: printf("new mailbox is at %s\n",TEMPFILE);
122: exit(1);
123: }
124: }
125:
126: /* delete temporary mailbox */
127: if ( 0 != unlink(TEMPFILE)){
128: printf("Could not temporary workfile. ");
129: printf("Compare %s and %s before manually deleting\n",
130: TEMPFILE, fullname);
131: printf("before deleting the temporary file %s.\n",TEMPFILE);
132: exit(1);
133: }
134:
135: /* change ownership of new file to that of the old file */
136:
137: chown(fullname,sbuf.st_uid, sbuf.st_gid);
138: chmod(fullname,00644);
139:
140: printf("Converted %d messages\n", counter);
141: }
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