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32 static char sccsid[] = "@(#)getmntopts.c 8.3 (Berkeley) 3/29/95";
35 #include <sys/cdefs.h>
36 __FBSDID("$FreeBSD$");
38 #include <sys/param.h>
39 #include <sys/mount.h>
53 int getmnt_silent = 0;
56 getmntopts(const char *options, const struct mntopt *m0, int *flagp,
59 const struct mntopt *m;
61 char *opt, *optbuf, *p;
64 /* Copy option string, since it is about to be torn asunder... */
65 if ((optbuf = strdup(options)) == NULL)
68 for (opt = optbuf; (opt = strtok(opt, ",")) != NULL; opt = NULL) {
69 /* Check for "no" prefix. */
70 if (opt[0] == 'n' && opt[1] == 'o') {
77 * for options with assignments in them (ie. quotas)
78 * ignore the assignment as it's handled elsewhere
84 /* Scan option table. */
85 for (m = m0; m->m_option != NULL; ++m) {
86 len = strlen(m->m_option);
87 if (strncasecmp(opt, m->m_option, len) == 0)
88 if (opt[len] == '\0' || opt[len] == '=')
92 /* Save flag, or fail if option is not recognized. */
94 thisflagp = m->m_altloc ? altflagp : flagp;
95 if (negative == m->m_inverse)
96 *thisflagp |= m->m_flag;
98 *thisflagp &= ~m->m_flag;
99 } else if (!getmnt_silent) {
100 errx(1, "-o %s: option not supported", opt);
108 rmslashes(char *rrpin, char *rrpout)
113 for (rrpoutstart = rrpout; *rrpin != '\0'; *rrpout++ = *rrpin++) {
115 /* skip all double slashes */
116 while (*rrpin == '/' && *(rrpin + 1) == '/')
120 /* remove trailing slash if necessary */
121 if (rrpout - rrpoutstart > 1 && *(rrpout - 1) == '/')
122 *(rrpout - 1) = '\0';
128 checkpath(const char *path, char *resolved)
132 if (realpath(path, resolved) != NULL && stat(resolved, &sb) == 0) {
133 if (!S_ISDIR(sb.st_mode))
134 errx(EX_USAGE, "%s: not a directory", resolved);
136 errx(EX_USAGE, "%s: %s", resolved, strerror(errno));
140 build_iovec(struct iovec **iov, int *iovlen, const char *name, void *val,
148 *iov = realloc(*iov, sizeof **iov * (i + 2));
153 (*iov)[i].iov_base = strdup(name);
154 (*iov)[i].iov_len = strlen(name) + 1;
156 (*iov)[i].iov_base = val;
157 if (len == (size_t)-1) {
159 len = strlen(val) + 1;
163 (*iov)[i].iov_len = (int)len;
168 * This function is needed for compatibility with parameters
169 * which used to use the mount_argf() command for the old mount() syscall.
172 build_iovec_argf(struct iovec **iov, int *iovlen, const char *name,
173 const char *fmt, ...)
176 char val[255] = { 0 };
179 vsnprintf(val, sizeof(val), fmt, ap);
181 build_iovec(iov, iovlen, name, strdup(val), (size_t)-1);