[1765] | 1 | /* vi: set sw=4 ts=4: */
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[821] | 2 | /*
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| 3 | * issue.c: issue printing code
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| 4 | *
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| 5 | * Copyright (C) 2003 Bastian Blank <waldi@tuxbox.org>
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| 6 | *
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[1765] | 7 | * Optimize and correcting OCRNL by Vladimir Oleynik <dzo@simtreas.ru>
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[821] | 8 | *
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[1765] | 9 | * Licensed under GPLv2 or later, see file LICENSE in this tarball for details.
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[821] | 10 | */
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| 11 |
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| 12 | #include <sys/param.h> /* MAXHOSTNAMELEN */
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[1765] | 13 | #include <sys/utsname.h>
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[821] | 14 | #include "libbb.h"
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| 15 |
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| 16 | #define LOGIN " login: "
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| 17 |
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[1765] | 18 | static const char fmtstr_d[] ALIGN1 = "%A, %d %B %Y";
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| 19 | static const char fmtstr_t[] ALIGN1 = "%H:%M:%S";
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[821] | 20 |
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| 21 | void print_login_issue(const char *issue_file, const char *tty)
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| 22 | {
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| 23 | FILE *fd;
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| 24 | int c;
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| 25 | char buf[256+1];
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| 26 | const char *outbuf;
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| 27 | time_t t;
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| 28 | struct utsname uts;
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| 29 |
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| 30 | time(&t);
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| 31 | uname(&uts);
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| 32 |
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| 33 | puts("\r"); /* start a new line */
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| 34 |
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[1765] | 35 | fd = fopen(issue_file, "r");
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| 36 | if (!fd)
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| 37 | return;
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| 38 | while ((c = fgetc(fd)) != EOF) {
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| 39 | outbuf = buf;
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| 40 | buf[0] = c;
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| 41 | buf[1] = '\0';
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| 42 | if (c == '\n') {
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| 43 | buf[1] = '\r';
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| 44 | buf[2] = '\0';
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| 45 | }
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| 46 | if (c == '\\' || c == '%') {
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| 47 | c = fgetc(fd);
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| 48 | switch (c) {
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| 49 | case 's':
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| 50 | outbuf = uts.sysname;
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| 51 | break;
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| 52 | case 'n':
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| 53 | outbuf = uts.nodename;
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| 54 | break;
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| 55 | case 'r':
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| 56 | outbuf = uts.release;
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| 57 | break;
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| 58 | case 'v':
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| 59 | outbuf = uts.version;
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| 60 | break;
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| 61 | case 'm':
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| 62 | outbuf = uts.machine;
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| 63 | break;
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| 64 | case 'D':
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| 65 | case 'o':
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| 66 | c = getdomainname(buf, sizeof(buf) - 1);
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| 67 | buf[c >= 0 ? c : 0] = '\0';
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| 68 | break;
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| 69 | case 'd':
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| 70 | strftime(buf, sizeof(buf), fmtstr_d, localtime(&t));
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| 71 | break;
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| 72 | case 't':
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| 73 | strftime(buf, sizeof(buf), fmtstr_t, localtime(&t));
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| 74 | break;
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| 75 | case 'h':
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| 76 | gethostname(buf, sizeof(buf) - 1);
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| 77 | buf[sizeof(buf) - 1] = '\0';
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| 78 | break;
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| 79 | case 'l':
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| 80 | outbuf = tty;
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| 81 | break;
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| 82 | default:
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| 83 | buf[0] = c;
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[821] | 84 | }
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| 85 | }
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[1765] | 86 | fputs(outbuf, stdout);
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[821] | 87 | }
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[1765] | 88 | fclose(fd);
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| 89 | fflush(stdout);
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[821] | 90 | }
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| 91 |
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| 92 | void print_login_prompt(void)
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| 93 | {
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| 94 | char buf[MAXHOSTNAMELEN+1];
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| 95 |
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[1765] | 96 | if (gethostname(buf, MAXHOSTNAMELEN) == 0)
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[821] | 97 | fputs(buf, stdout);
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| 98 |
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| 99 | fputs(LOGIN, stdout);
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| 100 | fflush(stdout);
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| 101 | }
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