projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| f6019b74 KB |
1 | /*- |
| 2 | * Copyright (c) 1994 | |
| 3 | * The Regents of the University of California. All rights reserved. | |
| 4 | * | |
| 5 | * %sccs.include.redist.c% | |
| 6 | */ | |
| 7 | ||
| 8 | #ifndef lint | |
| 9 | static char sccsid[] = "@(#)getmntopts.c 8.1 (Berkeley) %G%"; | |
| 10 | #endif /* not lint */ | |
| 11 | ||
| 12 | #include <sys/param.h> | |
| 13 | #include <sys/mount.h> | |
| 14 | ||
| 15 | #include <err.h> | |
| 16 | #include <errno.h> | |
| 17 | #include <fstab.h> | |
| 18 | #include <stdlib.h> | |
| 19 | #include <string.h> | |
| 20 | ||
| 21 | #include "mntopts.h" | |
| 22 | ||
| 23 | void | |
| 24 | getmntopts(options, m0, flagp) | |
| 25 | const char *options; | |
| 26 | const struct mntopt *m0; | |
| 27 | int *flagp; | |
| 28 | { | |
| 29 | const struct mntopt *m; | |
| 30 | int negative; | |
| 31 | char *opt, *optbuf; | |
| 32 | ||
| 33 | /* Copy option string, since it is about to be torn asunder... */ | |
| 34 | if ((optbuf = strdup(options)) == NULL) | |
| 35 | err(1, NULL); | |
| 36 | ||
| 37 | for (opt = optbuf; (opt = strtok(opt, ",")) != NULL; opt = NULL) { | |
| 38 | /* Check for "no" prefix. */ | |
| 39 | if (opt[0] == 'n' && opt[1] == 'o') { | |
| 40 | negative = 1; | |
| 41 | opt += 2; | |
| 42 | } else | |
| 43 | negative = 0; | |
| 44 | ||
| 45 | /* Scan option table. */ | |
| 46 | for (m = m0; m->m_option != NULL; ++m) | |
| 47 | if (strcasecmp(opt, m->m_option) == 0) | |
| 48 | break; | |
| 49 | ||
| 50 | /* Save flag, or fail if option is not recognised. */ | |
| 51 | if (m->m_option) { | |
| 52 | if (negative == m->m_inverse) | |
| 53 | *flagp |= m->m_flag; | |
| 54 | else | |
| 55 | *flagp &= ~m->m_flag; | |
| 56 | } else | |
| 57 | errx(1, "-o %s: option not supported", opt); | |
| 58 | } | |
| 59 | ||
| 60 | free(optbuf); | |
| 61 | } |