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annotate src/lib/mountpoint.c @ 5583:790dec1815e0 HEAD

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Compile fix for Tru64.
author Timo Sirainen <tss@iki.fi>
date Wed, 09 May 2007 11:58:53 +0300
parents 22e40b2c1c60
children 3887591e7a54
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4187
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1 /* Copyright (c) 2006 Timo Sirainen */
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2
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3 #include "lib.h"
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4 #include "mountpoint.h"
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5
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6 #include <sys/stat.h>
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7
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8 #ifdef HAVE_STATVFS_MNTFROMNAME
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9 # include <sys/statvfs.h> /* NetBSD 3.0+, FreeBSD 5.0+ */
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10 # define STATVFS_STR "statvfs"
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11 #elif defined(HAVE_STATFS_MNTFROMNAME)
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12 # include <sys/param.h> /* Older BSDs */
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13 # include <sys/mount.h>
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14 # define statvfs statfs
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15 # define STATVFS_STR "statfs"
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16 #elif defined(HAVE_MNTENT_H)
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17 # include <stdio.h>
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18 # include <mntent.h> /* Linux */
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19 #elif defined(HAVE_SYS_MNTTAB_H)
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20 # include <stdio.h>
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21 # include <sys/mnttab.h> /* Solaris */
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22 #else
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23 # define MOUNTPOINT_UNKNOWN
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24 #endif
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25
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26 #ifdef HAVE_SYS_MNTTAB_H
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27 # define MTAB_PATH MNTTAB /* Solaris */
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28 #else
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29 # define MTAB_PATH "/etc/mtab" /* Linux */
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30 #endif
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31
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32 /* AIX doesn't have these defined */
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33 #ifndef MNTTYPE_SWAP
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34 # define MNTTYPE_SWAP "swap"
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35 #endif
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36 #ifndef MNTTYPE_IGNORE
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37 # define MNTTYPE_IGNORE "ignore"
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38 #endif
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39
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40 int mountpoint_get(const char *path, pool_t pool, struct mountpoint *point_r)
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41 {
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42 #ifdef MOUNTPOINT_UNKNOWN
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43 memset(point_r, 0, sizeof(*point_r));
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44 errno = ENOSYS;
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45 return -1;
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46 #elif defined (HAVE_STATFS_MNTFROMNAME) || defined(HAVE_STATVFS_MNTFROMNAME)
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47 /* BSDs */
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48 struct statvfs buf;
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49
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50 memset(point_r, 0, sizeof(*point_r));
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51 if (statvfs(path, &buf) < 0) {
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52 if (errno == ENOENT)
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53 return 0;
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54
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55 i_error(STATVFS_STR"(%s) failed: %m", path);
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56 return -1;
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57 }
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58
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59 point_r->device_path = p_strdup(pool, buf.f_mntfromname);
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60 point_r->mount_path = p_strdup(pool, buf.f_mntonname);
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61 #ifdef __osf__ /* Tru64 */
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62 point_r->type = p_strdup(pool, getvfsbynumber(buf.f_type));
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63 #else
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64 point_r->type = p_strdup(pool, buf.f_fstypename);
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65 #endif
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66 point_r->block_size = buf.f_bsize;
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67 return 1;
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68 #else
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69 /* Linux, Solaris: /etc/mtab reading */
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70 #ifdef HAVE_SYS_MNTTAB_H
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71 struct mnttab ent;
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72 #else
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73 struct mntent *ent;
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74 #endif
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75 struct stat st, st2;
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76 const char *device_path = NULL, *mount_path = NULL, *type = NULL;
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77 unsigned int block_size;
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78 FILE *f;
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79
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80 memset(point_r, 0, sizeof(*point_r));
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81 if (stat(path, &st) < 0) {
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82 if (errno == ENOENT)
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83 return 0;
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84
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85 i_error("stat(%s) failed: %m", path);
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86 return -1;
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87 }
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88 block_size = st.st_blksize;
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89
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90 #ifdef HAVE_SYS_MNTTAB_H
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91 /* Solaris */
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92 f = fopen(MTAB_PATH, "r");
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93 if (f == NULL) {
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94 i_error("fopen(%s) failed: %m", MTAB_PATH);
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95 return -1;
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96 }
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97 while ((getmntent(f, &ent)) == 0) {
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98 if (strcmp(ent.mnt_fstype, MNTTYPE_SWAP) == 0 ||
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99 strcmp(ent.mnt_fstype, MNTTYPE_IGNORE) == 0)
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100 continue;
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101
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102 if (stat(ent.mnt_mountp, &st2) == 0 &&
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103 CMP_DEV_T(st.st_dev, st2.st_dev)) {
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104 device_path = ent.mnt_special;
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105 mount_path = ent.mnt_mountp;
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106 type = ent.mnt_fstype;
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107 break;
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108 }
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109 }
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110 fclose(f);
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111 #else
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112 /* Linux */
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113 f = setmntent(MTAB_PATH, "r");
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114 if (f == NULL) {
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115 i_error("setmntent(%s) failed: %m", MTAB_PATH);
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116 return -1;
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117 }
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118 while ((ent = getmntent(f)) != NULL) {
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119 if (strcmp(ent->mnt_type, MNTTYPE_SWAP) == 0 ||
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120 strcmp(ent->mnt_type, MNTTYPE_IGNORE) == 0)
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121 continue;
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122
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123 if (stat(ent->mnt_dir, &st2) == 0 &&
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124 CMP_DEV_T(st.st_dev, st2.st_dev)) {
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125 device_path = ent->mnt_fsname;
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126 mount_path = ent->mnt_dir;
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127 type = ent->mnt_type;
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128 break;
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129 }
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130 }
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131 endmntent(f);
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132 #endif
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133 if (device_path == NULL)
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Timo Sirainen <tss@iki.fi>
parents:
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134 return 0;
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Timo Sirainen <tss@iki.fi>
parents:
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135
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136 point_r->device_path = p_strdup(pool, device_path);
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137 point_r->mount_path = p_strdup(pool, mount_path);
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138 point_r->type = p_strdup(pool, type);
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139 point_r->block_size = block_size;
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140 return 1;
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141 #endif
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142 }