projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| d9dea2b0 BJ |
1 | /* @(#)cpnull.c 4.1 82/03/05 */ |
| 2 | ||
| 3 | #include <stdio.h> | |
| 4 | #include <signal.h> | |
| 5 | #include <sys/types.h> | |
| 6 | #include <stat.h> | |
| 7 | #include <wellknown.h> | |
| 8 | #include <sys/ioctl.h> | |
| 9 | #include <net/in.h> | |
| 10 | /* | |
| 11 | * cpnull machine blocks | |
| 12 | */ | |
| 13 | int rem; | |
| 14 | char *index(), *rindex(), *malloc(); | |
| 15 | int errs; | |
| 16 | int broken(); | |
| 17 | int lostconn(); | |
| 18 | ||
| 19 | int errno; | |
| 20 | char sys_errlist[]; | |
| 21 | int vflag; | |
| 22 | ||
| 23 | main(argc, argv) | |
| 24 | int argc; | |
| 25 | char **argv; | |
| 26 | { | |
| 27 | char *host, *remotedir; | |
| 28 | int x, i, f; | |
| 29 | char buf[BUFSIZ]; | |
| 30 | int blocks; | |
| 31 | time_t then, now; | |
| 32 | ||
| 33 | argc--, argv++; | |
| 34 | if (argc > 0 && !strcmp(*argv, "-r")) | |
| 35 | remote(); | |
| 36 | if (argc > 0 && !strcmp(*argv, "-v")) | |
| 37 | vflag++, argc--, argv++; | |
| 38 | if (argc < 2) { | |
| 39 | fprintf(stderr, "usage: cpnull machine blocks\n"); | |
| 40 | exit(1); | |
| 41 | } | |
| 42 | signal(SIGPIPE, broken); | |
| 43 | host = *argv++; argc--; | |
| 44 | rem = rexec(&host, IPPORT_SHELLSERVER, "cpnull -r", 0, 0); | |
| 45 | if (rem < 0) | |
| 46 | exit(1); | |
| 47 | blocks = atoi(*argv); | |
| 48 | sprintf(buf, "C%d\n", blocks * BUFSIZ); | |
| 49 | write(rem, buf, strlen(buf)); | |
| 50 | if (response() < 0) | |
| 51 | exit(1); | |
| 52 | printf("sending %d blocks\n", blocks); | |
| 53 | time(&then); | |
| 54 | for (i = 0; i < blocks; i++) { | |
| 55 | if (vflag && (i % 100 == 0)) | |
| 56 | printf("%d\n", i); | |
| 57 | write(rem, buf, BUFSIZ); | |
| 58 | } | |
| 59 | (void) response(); | |
| 60 | time(&now); | |
| 61 | if (then == now) | |
| 62 | printf("< 1 second to transfer\n"); | |
| 63 | else | |
| 64 | printf("%d bytes %d seconds %d baud\n", | |
| 65 | blocks * BUFSIZ, now - then, | |
| 66 | (blocks * BUFSIZ * 8) / (now - then)); | |
| 67 | exit(errs); | |
| 68 | } | |
| 69 | ||
| 70 | response() | |
| 71 | { | |
| 72 | char resp, c, rbuf[BUFSIZ], *cp = rbuf; | |
| 73 | ||
| 74 | if (read(rem, &resp, 1) != 1) { | |
| 75 | printf("Response read != 1\n"); | |
| 76 | lostconn(); | |
| 77 | } | |
| 78 | switch (resp) { | |
| 79 | ||
| 80 | case 0: | |
| 81 | return (0); | |
| 82 | ||
| 83 | default: | |
| 84 | *cp++ = resp; | |
| 85 | /* fall into... */ | |
| 86 | case 1: | |
| 87 | case 2: | |
| 88 | do { | |
| 89 | if (read(rem, &c, 1) != 1) { | |
| 90 | printf("response loop != 1\n"); | |
| 91 | write(2, rbuf, cp-rbuf); | |
| 92 | write(2, "\n", 1); | |
| 93 | lostconn(); | |
| 94 | } | |
| 95 | *cp++ = c; | |
| 96 | } while (cp < &rbuf[BUFSIZ] && c != '\n'); | |
| 97 | write(2, rbuf, cp - rbuf); | |
| 98 | if (resp == 1) | |
| 99 | return (-1); | |
| 100 | exit(1); | |
| 101 | } | |
| 102 | } | |
| 103 | ||
| 104 | broken() | |
| 105 | { | |
| 106 | ||
| 107 | fprintf(stderr, "SIGPIPE.\n"); | |
| 108 | } | |
| 109 | ||
| 110 | lostconn() | |
| 111 | { | |
| 112 | ||
| 113 | fprintf(stderr, "Lost connection.\n"); | |
| 114 | exit(1); | |
| 115 | } | |
| 116 | ||
| 117 | remote() | |
| 118 | { | |
| 119 | char namebuf[BUFSIZ], buf[BUFSIZ], *name, *cp, c; | |
| 120 | int i, size; | |
| 121 | char *whopp; | |
| 122 | #define SCREWUP(str) { whopp = str; goto screwup; } | |
| 123 | ||
| 124 | cp = namebuf; | |
| 125 | if (read(0, cp, 1) <= 0) | |
| 126 | exit(0); | |
| 127 | if (*cp++ == '\n') | |
| 128 | SCREWUP("unexpected '\\n'"); | |
| 129 | do | |
| 130 | if (read(0, cp, 1) != 1) | |
| 131 | exit(1); | |
| 132 | while (*cp++ != '\n'); | |
| 133 | *--cp = 0; | |
| 134 | cp = namebuf; | |
| 135 | if (*cp++ != 'C') | |
| 136 | SCREWUP("expected control record"); | |
| 137 | size = 0; | |
| 138 | while (*cp >= '0' && *cp <= '9') | |
| 139 | size = size * 10 + (*cp++ - '0'); | |
| 140 | if (*cp++ != 0) | |
| 141 | SCREWUP("size not delimited"); | |
| 142 | write(rem, "\0", 1); | |
| 143 | for (i = 0; i < size; i += BUFSIZ) { | |
| 144 | int amt = BUFSIZ; | |
| 145 | char *cp = buf; | |
| 146 | ||
| 147 | if (i + amt > size) | |
| 148 | amt = size - i; | |
| 149 | do { | |
| 150 | int j = read(0, cp, amt); | |
| 151 | ||
| 152 | if (j <= 0) | |
| 153 | exit(1); | |
| 154 | amt -= j; | |
| 155 | cp += j; | |
| 156 | } while (amt > 0); | |
| 157 | amt = BUFSIZ; | |
| 158 | if (i + amt > size) | |
| 159 | amt = size - i; | |
| 160 | } | |
| 161 | write(rem, "\0", 1); | |
| 162 | exit(0); | |
| 163 | perr: | |
| 164 | sprintf(buf, "\01%s: %s\n", cp, sys_errlist[errno]); | |
| 165 | write(rem, buf, strlen(buf)); | |
| 166 | exit(1); | |
| 167 | screwup: | |
| 168 | sprintf(buf, "\02Procotol screwup: %s.\n", whopp); | |
| 169 | write(rem, buf, strlen(buf)); | |
| 170 | exit(1); | |
| 171 | } |