Implement fbtab ala SunSO.
Could not compile it (on thud) because ttychar.h was still broken. Reviewed by: Submitted by: guido
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695fcfc975
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2313673135
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=2223
@ -1,7 +1,7 @@
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# @(#)Makefile 8.1 (Berkeley) 6/4/93
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PROG= getty
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SRCS= main.c init.c subr.c ttydefaults.c
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SRCS= main.c init.c subr.c ttydefaults.c fbtab_stuff.c
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DPADD= ${LIBUTIL}
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LDADD= -lutil
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MAN5= gettytab.5 ttys.5
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93
libexec/getty/fbtab_stuff.c
Normal file
93
libexec/getty/fbtab_stuff.c
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@ -0,0 +1,93 @@
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#include <sys/types.h>
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#include <stdio.h>
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#include <syslog.h>
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#include <string.h>
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#include <errno.h>
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#include <dirent.h>
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#include "pathnames.h"
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#define WSPACE " \t\n"
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void reset_fbtab __P((char *tty));
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void reset_protect __P((char *table, char *path, int mask));
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/*
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* reset_fbtab - reset ownership to root/wheel and apply protections
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* specified in /etc/fbtab or logindevperm
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*/
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void
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reset_fbtab(tty)
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char *tty;
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{
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FILE *fp;
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char buf[BUFSIZ];
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char *devname;
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char *cp;
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int prot;
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char *table;
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if ((fp = fopen(table = _PATH_FBTAB, "r")) == 0
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&& (fp = fopen(table = _PATH_LOGINDEVPERM, "r")) == 0)
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return;
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while (fgets(buf, sizeof(buf), fp)) {
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if (cp = strchr(buf, '#'))
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*cp = 0; /* strip comment */
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if ((cp = devname = strtok(buf, WSPACE)) == 0)
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continue; /* empty or comment */
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if (strncmp(devname, "/dev/", 5) != 0
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|| (cp = strtok((char *) 0, WSPACE)) == 0
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|| *cp != '0'
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|| sscanf(cp, "%o", &prot) == 0
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|| prot == 0
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|| (prot & 0777) != prot
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|| (cp = strtok((char *) 0, WSPACE)) == 0) {
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syslog(LOG_ERR, "%s: bad entry: %s", table, cp ? cp : "(null)");
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continue;
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}
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if (strcmp(devname, tty) == 0) {
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for (cp = strtok(cp, ":"); cp; cp = strtok((char *) 0, ":")) {
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reset_protect(table, cp, prot);
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}
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}
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}
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fclose(fp);
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}
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/* reset_protect - protect one device entry */
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void
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reset_protect(table, path, mask)
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char *table;
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char *path;
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int mask;
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{
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char buf[BUFSIZ];
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int pathlen = strlen(path);
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struct dirent *ent;
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DIR *dir;
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if (strcmp("/*", path + pathlen - 2) != 0) {
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if (chmod(path, mask) && errno != ENOENT)
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syslog(LOG_ERR, "%s: chmod(%s): %m", table, path);
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if (chown(path, 0, 0) && errno != ENOENT)
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syslog(LOG_ERR, "%s: chown(%s): %m", table, path);
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} else {
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strcpy(buf, path);
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buf[pathlen - 1] = 0;
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if ((dir = opendir(buf)) == 0) {
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syslog(LOG_ERR, "%s: opendir(%s): %m", table, path);
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} else {
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while ((ent = readdir(dir)) != 0) {
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if (strcmp(ent->d_name, ".") != 0
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&& strcmp(ent->d_name, "..") != 0) {
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strcpy(buf + pathlen - 1, ent->d_name);
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reset_protect(table, buf, mask);
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}
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}
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closedir(dir);
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}
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}
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}
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@ -61,6 +61,13 @@ If there is no argument or the argument is
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.Ql Fl ,
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the tty line is assumed to be open as file descriptor 0.
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.Pp
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If the argument
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.Ar tty
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matches the first entry in one of the lines in
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.Pa /etc/fbtab
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the userid and groupid of the device list on that line is reset to root and
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wheel respectively.
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.Pp
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The
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.Ar type
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argument can be used to make
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@ -111,9 +118,11 @@ does not exist.
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.El
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.Sh FILES
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.Bl -tag -width /etc/gettytab -compact
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.It Pa /etc/fbtab
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.It Pa /etc/gettytab
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.El
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.Sh SEE ALSO
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.Xr fbtab 5 ,
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.Xr gettytab 5 ,
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.Xr init 8 ,
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.Xr login 1 ,
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@ -161,7 +161,7 @@ static void putchr __P((int));
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static void putf __P((char *));
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static void putpad __P((char *));
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static void puts __P((char *));
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extern void reset_fbtab __P((char *));
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int
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main(argc, argv)
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int argc;
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@ -224,6 +224,9 @@ main(argc, argv)
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}
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}
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/* Read the FBTAB file and check if we have to reset perms/ownership */
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reset_fbtab(ttyn);
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gettable("default", defent);
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gendefaults();
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tname = "default";
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@ -35,5 +35,7 @@
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#include <paths.h>
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#define _PATH_GETTYTAB "/etc/gettytab"
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#define _PATH_LOGIN "/usr/bin/login"
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#define _PATH_GETTYTAB "/etc/gettytab"
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#define _PATH_LOGIN "/usr/bin/login"
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#define _PATH_FBTAB "/etc/fbtab"
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#define _PATH_LOGINDEVPERM "/etc/logindevperm"
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