projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| a24c10d4 KT |
1 | #include "xmail.h" |
| 2 | #include "sys/types.h" | |
| 3 | #include "sys/dir.h" | |
| 4 | #include "ctype.h" | |
| 5 | #include "pwd.h" | |
| 6 | #include "sys/stat.h" | |
| 7 | char *myname; | |
| 8 | int uid; | |
| 9 | struct direct dbuf; | |
| 10 | char *maildir = "/usr/spool/secretmail/"; | |
| 11 | FILE *kf, *mf, *df; | |
| 12 | MINT *x, *b, *one, *t45, *z, *q, *r; | |
| 13 | MINT *two, *t15, *mbuf; | |
| 14 | char buf[256], line[128]; | |
| 15 | #define MXF 100 | |
| 16 | int fnum[MXF], fcnt; | |
| 17 | struct stat stbuf; | |
| 18 | main() | |
| 19 | { int i; | |
| 20 | char *p; | |
| 21 | uid = getuid(); | |
| 22 | myname = getlogin(); | |
| 23 | if(myname == NULL) | |
| 24 | myname = getpwuid(uid)->pw_name; | |
| 25 | comminit(); | |
| 26 | mbuf = itom(0); | |
| 27 | files(); | |
| 28 | setup(getpass("Key: ")); | |
| 29 | mkb(); | |
| 30 | mkx(); | |
| 31 | #ifndef debug | |
| 32 | invert(x, b, x); | |
| 33 | #else | |
| 34 | invert(x, b, z); | |
| 35 | mult(x, z, z); | |
| 36 | mdiv(z, b, q, z); | |
| 37 | omout(z); | |
| 38 | invert(x, b, x); | |
| 39 | #endif | |
| 40 | for(i=0; i<fcnt; i++) | |
| 41 | { sprintf(line, "%s%s.%d", maildir, myname, fnum[i]); | |
| 42 | if(stat(line, &stbuf)<0) | |
| 43 | { perror(line); | |
| 44 | continue; | |
| 45 | } | |
| 46 | if(stbuf.st_size == 0) | |
| 47 | { printf("zero length mail file\n"); | |
| 48 | unlink(line); | |
| 49 | continue; | |
| 50 | } | |
| 51 | if((mf = fopen(line, "r"))==NULL) | |
| 52 | { perror(line); | |
| 53 | continue; | |
| 54 | } | |
| 55 | decipher(mf, stdout); | |
| 56 | cmnd: | |
| 57 | printf("? "); | |
| 58 | fgets(buf, sizeof(buf), stdin); | |
| 59 | if(feof(stdin)) exit(0); | |
| 60 | switch(buf[0]) | |
| 61 | { | |
| 62 | case 'q': | |
| 63 | exit(0); | |
| 64 | case 'n': | |
| 65 | case 'd': | |
| 66 | case '\n': | |
| 67 | unlink(line); | |
| 68 | fclose(mf); | |
| 69 | break; | |
| 70 | case '!': | |
| 71 | system(buf+1); | |
| 72 | printf("!\n"); | |
| 73 | goto cmnd; | |
| 74 | case 's': | |
| 75 | case 'w': | |
| 76 | rewind(mf); | |
| 77 | if(buf[1] == '\n' || buf[1] == '\0') | |
| 78 | strcpy(buf, "s mbox\n"); | |
| 79 | for(p=buf; !isspace(*p); p++); | |
| 80 | for(; isspace(*p); p++); | |
| 81 | p[strlen(p)-1] = 0; | |
| 82 | kf = fopen(p, "a"); | |
| 83 | if(kf == NULL) | |
| 84 | { perror(p); | |
| 85 | break; | |
| 86 | } | |
| 87 | decipher(mf, kf); | |
| 88 | fclose(mf); | |
| 89 | fclose(kf); | |
| 90 | unlink(line); | |
| 91 | break; | |
| 92 | } | |
| 93 | } | |
| 94 | exit(0); | |
| 95 | } | |
| 96 | icmp(a, b) int *a, *b; | |
| 97 | { | |
| 98 | return(*a - *b); | |
| 99 | } | |
| 100 | files() | |
| 101 | { int i; | |
| 102 | if((df = fopen(maildir, "r")) == NULL) | |
| 103 | { perror(maildir); | |
| 104 | exit(1); | |
| 105 | } | |
| 106 | strcpy(line, myname); | |
| 107 | strcat(line, ".%d"); | |
| 108 | for(; !feof(df);) | |
| 109 | { fread(&dbuf, sizeof(dbuf), 1, df); | |
| 110 | if(feof(df)) break; | |
| 111 | if(dbuf.d_ino == 0) continue; | |
| 112 | if(sscanf(dbuf.d_name, line, &i) != 1) | |
| 113 | continue; | |
| 114 | if(fcnt >= MXF) | |
| 115 | break; | |
| 116 | fnum[fcnt++] = i; | |
| 117 | } | |
| 118 | if(fcnt == 0) | |
| 119 | { printf("no secret mail\n"); | |
| 120 | exit(0); | |
| 121 | } | |
| 122 | qsort(fnum, fcnt, sizeof(int), icmp); | |
| 123 | } | |
| 124 | decipher(u, w) FILE *u, *w; | |
| 125 | { int i; | |
| 126 | short a; | |
| 127 | for(;;) | |
| 128 | { nin(mbuf, u); | |
| 129 | if(feof(u)) break; | |
| 130 | mult(mbuf, x, mbuf); | |
| 131 | mdiv(mbuf, b, q, mbuf); | |
| 132 | for(i=1; i<=3; i++) | |
| 133 | { a = mbuf->val[i]; | |
| 134 | putc(a&0177, w); | |
| 135 | a >>= 8; | |
| 136 | putc(a&0177, w); | |
| 137 | } | |
| 138 | } | |
| 139 | } |