164 lines
4.1 KiB
C
164 lines
4.1 KiB
C
/* permsfile.c: implement SunOS /etc/fbtab and Solaris /etc/logindevperm
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functionality to set device permissions on login
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%%% portions-copyright-cmetz
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Portions of this software are Copyright 1996 by Craig Metz, All Rights
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Reserved. The Inner Net License Version 2 applies to these portions of
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the software.
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You should have received a copy of the license with this software. If
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you didn't get a copy, you may request one from <license@inner.net>.
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Portions of this software are Copyright 1995 by Randall Atkinson and Dan
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McDonald, All Rights Reserved. All Rights under this copyright are assigned
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to the U.S. Naval Research Laboratory (NRL). The NRL Copyright Notice and
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License Agreement applies to this software.
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History:
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Modified by cmetz for OPIE 2.3. Check for NULL return from
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ftpglob(), combine some expressions, fix a typo. Made file
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selection a bit more generic.
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Modified by cmetz for OPIE 2.2. Use FUNCTION declaration et al.
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Add opie.h. Ifdef around a header.
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Written at NRL for OPIE 2.0.
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*/
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#include "opie_cfg.h"
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#ifdef HAVE_LOGIN_PERMFILE
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#include <stdio.h>
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#include <sys/types.h>
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#if HAVE_STRING_H
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#include <string.h>
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#endif /* HAVE_STRING_H */
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#include <syslog.h>
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#include "opie.h"
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/* Line buffer size (one more than max line length) */
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#define BUFSIZE 128
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/* Maximum number of list items in a field */
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#define LISTSIZE 10
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static char buf[BUFSIZE], buf2[8];
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char **ftpglob __P((char *));
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VOIDRET opiefatal FUNCTION((x), char *x)
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{
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fprintf(stderr, x);
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exit(1);
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}
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#include "glob.c"
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static int getalist FUNCTION((string, list), char **string AND char **list)
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{
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char *s = *string;
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int i = 0;
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while (*s && (*s != '\n') && (*s != ' ') && (*s != '\t'))
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if ((*s == ':') || (*s == ',')) {
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*(s++) = 0;
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list[i++] = *string;
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*string = s;
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if (i == LISTSIZE)
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return i;
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} else
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s++;
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if ((int) (s) - (int) (*string)) {
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*s = 0;
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list[i++] = *string;
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}
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*string = ++s;
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return i;
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}
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static VOIDRET doaline FUNCTION((line, name, ttyn, uid, gid), char *line AND char *name AND char *ttyn AND uid_t uid AND gid_t gid)
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{
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char *ptr;
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int i;
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int applies, llen;
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char *listbuf[LISTSIZE], **globlist;
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if (ptr = strchr(buf, '#'))
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*ptr = 0;
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/* Skip whitespace */
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for (ptr = buf; *ptr && ((*ptr == ' ') || (*ptr == '\t'));
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ptr++);
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if (!*ptr)
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return;
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/* (Optional) Field 1: user name(s) */
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if ((*ptr != '/') && (*ptr != '~')) {
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llen = getalist(&ptr, listbuf);
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for (applies = i = 0; (i < llen) && !applies; i++)
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if (!strcmp(listbuf[i], name))
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applies++;
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while (*ptr && ((*ptr == ' ') || (*ptr == '\t')))
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ptr++;
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if (!applies || !*ptr)
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return;
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}
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/* Field 2: terminal(s) */
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llen = getalist(&ptr, listbuf);
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for (applies = i = 0; (i < llen) && !applies; i++)
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if (!strcmp(listbuf[i], ttyn))
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applies++;
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while (*ptr && ((*ptr == ' ') || (*ptr == '\t')))
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ptr++;
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if (!applies || !*ptr)
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return;
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/* Field 3: mode */
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for (applies = 0; *ptr && (*ptr >= '0') && (*ptr <= '7');
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applies = (applies << 3) | (*(ptr++) - '0'));
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while (*ptr && ((*ptr == ' ') || (*ptr == '\t')))
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ptr++;
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if (!*ptr)
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return;
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/* Field 4: devices (the fun part...) */
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llen = getalist(&ptr, listbuf);
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for (i = 0; i < llen; i++) {
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if (globlist = ftpglob(listbuf[i]))
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while (*globlist) {
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#ifdef DEBUG
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syslog(LOG_DEBUG, "setting %s to %d/%d %o", *globlist, uid, gid, applies);
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#endif /* DEBUG */
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if ((chown(*globlist, uid, gid) < 0) && (errno != ENOENT))
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perror("chown");
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if ((chmod(*(globlist++), applies) < 0) && (errno != ENOENT))
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perror("chmod");
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}
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}
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}
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VOIDRET permsfile FUNCTION((name, ttyn, uid, gid), char *name AND char *ttyn AND uid_t uid AND gid_t gid)
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{
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FILE *fh;
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if (!(fh = fopen(HAVE_LOGIN_PERMFILE, "r"))) {
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syslog(LOG_ERR, "Can't open %s!", HAVE_LOGIN_PERMFILE);
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fprintf(stderr, "Warning: Can't set device permissions.\n");
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return;
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}
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do {
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if (feof(fh))
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return;
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if (fgets(buf, BUFSIZE, fh) == NULL)
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return;
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buf[BUFSIZE] = 0;
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doaline(buf, name, ttyn, uid, gid);
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}
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while (1);
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}
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#endif /* HAVE_LOGIN_PERMFILE */
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