usr/src/lib/libvolmgt/common/volprivate.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 /*
  22  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  */
  25
  26 #pragma ident   "%Z%%M% %I%     %E% SMI"
  27
  28 /*
  29  * routines in this module are meant to be called by other libvolmgt
  30  * routines only
  31  */
  32
  33 #include        <stdio.h>
  34 #include        <string.h>
  35 #include        <dirent.h>
  36 #include        <string.h>
  37 #include        <libintl.h>
  38 #include        <limits.h>
  39 #include        <unistd.h>
  40 #include        <stdlib.h>
  41 #include        <sys/types.h>
  42 #include        <sys/stat.h>
  43 #include        <sys/param.h>
  44 #include        <sys/varargs.h>
  45 #include        "volmgt_private.h"
  46
  47
  48 /*
  49  * fix the getfull{raw,blk}name problem for the fd and diskette case
  50  *
  51  * return value is malloc'ed, and must be free'd
  52  *
  53  * no match gets a malloc'ed null string
  54  */
  55
  56 char *
  57 volmgt_getfullblkname(char *n)
  58 {
  59         extern char     *getfullblkname(char *);
  60         char            *rval;
  61         char            namebuf[MAXPATHLEN+1];
  62         char            *s;
  63         char            c;
  64         char            *res;
  65
  66
  67
  68         /* try to get full block-spcl device name */
  69         rval = getfullblkname(n);
  70         if ((rval != NULL) && (*rval != NULLC)) {
  71                 /* found it */
  72                 res = rval;
  73                 goto dun;
  74         }
  75
  76         /* we have a null-string result */
  77         if (rval != NULL) {
  78                 /* free null string */
  79                 free(rval);
  80         }
  81
  82         /* ok, so we either have a bad device or a floppy */
  83
  84         /* try the rfd# or rdiskette forms */
  85         if (((s = strstr(n, "/rfd")) != NULL) ||
  86             ((s = strstr(n, "/rdiskette")) != NULL) ||
  87             ((s = strstr(n, "/rdsk/")) != NULL)) {
  88                 /*
  89                  * we do not have to check for room here, since we will
  90                  * be making the string one shorter
  91                  */
  92                 c = *++s;                       /* save the first char */
  93                 *s = NULLC;                     /* replace it with a null */
  94                 (void) strcpy(namebuf, n);      /* save first part of it */
  95                 *s++ = c;                       /* give the first char back */
  96                 (void) strcat(namebuf, s);      /* copy the rest */
  97                 res = strdup(namebuf);
  98                 goto dun;
  99         }
 100
 101         /* no match found */
 102         res = strdup("");
 103
 104 dun:
 105         return (res);
 106 }
 107
 108
 109 char *
 110 volmgt_getfullrawname(char *n)
 111 {
 112         extern char     *getfullrawname(char *);
 113         char            *rval;
 114         char            namebuf[MAXPATHLEN+1];
 115         char            *s;
 116         char            c;
 117         char            *res;
 118
 119
 120 #ifdef  DEBUG
 121         denter("volmgt_getfullrawname(%s): entering\n", n);
 122 #endif
 123         /* try to get full char-spcl device name */
 124         rval = getfullrawname(n);
 125         if ((rval != NULL) && (*rval != NULLC)) {
 126                 /* found it */
 127                 res = rval;
 128                 goto dun;
 129         }
 130
 131         /* we have a null-string result */
 132         if (rval != NULL) {
 133                 /* free null string */
 134                 free(rval);
 135         }
 136
 137         /* ok, so we either have a bad device or a floppy */
 138
 139         /* try the "fd", "diskette", and the "dsk" form */
 140         if (((s = strstr(n, "/fd")) != NULL) ||
 141             ((s = strstr(n, "/diskette")) != NULL) ||
 142             ((s = strstr(n, "/dsk/")) != NULL)) {
 143                 /*
 144                  * ensure we have room to add one more char
 145                  */
 146                 if (strlen(n) < (MAXPATHLEN - 1)) {
 147                         c = *++s;               /* save the first char */
 148                         *s = NULLC;             /* replace it with a null */
 149                         (void) strcpy(namebuf, n); /* save first part of str */
 150                         *s = c;                 /* put first charback */
 151                         (void) strcat(namebuf, "r"); /* insert an 'r' */
 152                         (void) strcat(namebuf, s); /* copy rest of str */
 153                         res = strdup(namebuf);
 154                         goto dun;
 155                 }
 156         }
 157
 158         /* no match found */
 159         res = strdup("");
 160 dun:
 161 #ifdef  DEBUG
 162         dexit("volmgt_getfullrawname: returning %s\n",
 163             res ? res : "<null ptr>");
 164 #endif
 165         return (res);
 166 }
 167
 168
 169 #ifdef  DEBUG
 170
 171 /*
 172  * debug print routines -- private to libvolmgt
 173  */
 174
 175 #define DEBUG_INDENT_SPACES     "  "
 176
 177 int     debug_level = 0;
 178
 179
 180 static void
 181 derrprint(char *fmt, va_list ap)
 182 {
 183         int             i;
 184         int             j;
 185         char            date_buf[256];
 186         time_t          t;
 187         struct tm       *tm;
 188
 189
 190         (void) time(&t);
 191         tm = localtime(&t);
 192         (void) fprintf(stderr, "%02d/%02d/%02d %02d:%02d:%02d ",
 193             tm->tm_mon+1, tm->tm_mday, tm->tm_year % 100,
 194             tm->tm_hour, tm->tm_min, tm->tm_sec);
 195         for (i = 0; i < debug_level; i++) {
 196                 (void) fprintf(stderr, DEBUG_INDENT_SPACES);
 197         }
 198         (void) vfprintf(stderr, fmt, ap);
 199 }
 200
 201 /*
 202  * denter -- do a derrprint(), then increment debug level
 203  */
 204 void
 205 denter(char *fmt, ...)
 206 {
 207         va_list         ap;
 208
 209         va_start(ap, fmt);
 210         derrprint(fmt, ap);
 211         va_end(ap);
 212         debug_level++;
 213 }
 214
 215 /*
 216  * dexit -- decrement debug level then do a derrprint()
 217  */
 218 void
 219 dexit(char *fmt, ...)
 220 {
 221         va_list         ap;
 222
 223         if (--debug_level < 0) {
 224                 debug_level = 0;
 225         }
 226         va_start(ap, fmt);
 227         derrprint(fmt, ap);
 228         va_end(ap);
 229 }
 230
 231 /*
 232  * dprintf -- print debug info, indenting based on debug level
 233  */
 234 void
 235 dprintf(char *fmt, ...)
 236 {
 237         va_list         ap;
 238
 239         va_start(ap, fmt);
 240         derrprint(fmt, ap);
 241         va_end(ap);
 242 }
 243
 244 #endif  /* DEBUG */