00001
00005 #include "system.h"
00006 #include <rpmlib.h>
00007 #include <rpmmacro.h>
00008 #include "debug.h"
00009
00010
00011
00012 struct fsinfo {
00013 const char * mntPoint;
00014 dev_t dev;
00015 int rdonly;
00016 };
00017
00018 static struct fsinfo * filesystems = NULL;
00019 static const char ** fsnames = NULL;
00020 static int numFilesystems = 0;
00021
00022 void freeFilesystems(void)
00023 {
00024 if (filesystems) {
00025 int i;
00026 for (i = 0; i < numFilesystems; i++)
00027 filesystems[i].mntPoint = _free(filesystems[i].mntPoint);
00028 filesystems = _free(filesystems);
00029 }
00030 if (fsnames) {
00031 #if 0
00032 free(fsnames);
00033 #endif
00034 fsnames = NULL;
00035 }
00036 numFilesystems = 0;
00037 }
00038
00039 #if HAVE_MNTCTL
00040
00041
00042
00043 #include <sys/mntctl.h>
00044 #include <sys/vmount.h>
00045
00046
00047
00048
00049
00050 int mntctl(int command, int size, char *buffer);
00051
00057 static int getFilesystemList(void)
00058 {
00059 int size;
00060 void * buf;
00061 struct vmount * vm;
00062 struct stat sb;
00063 int rdonly = 0;
00064 int num;
00065 int fsnameLength;
00066 int i;
00067
00068 num = mntctl(MCTL_QUERY, sizeof(size), (char *) &size);
00069 if (num < 0) {
00070 rpmError(RPMERR_MTAB, _("mntctl() failed to return size: %s\n"),
00071 strerror(errno));
00072 return 1;
00073 }
00074
00075
00076
00077
00078
00079
00080 size *= 2;
00081
00082 buf = alloca(size);
00083 num = mntctl(MCTL_QUERY, size, buf);
00084 if ( num <= 0 ) {
00085 rpmError(RPMERR_MTAB, _("mntctl() failed to return mount points: %s\n"),
00086 strerror(errno));
00087 return 1;
00088 }
00089
00090 numFilesystems = num;
00091
00092 filesystems = xcalloc((numFilesystems + 1), sizeof(*filesystems));
00093 fsnames = xcalloc((numFilesystems + 1), sizeof(char *));
00094
00095 for (vm = buf, i = 0; i < num; i++) {
00096 char *fsn;
00097 fsnameLength = vm->vmt_data[VMT_STUB].vmt_size;
00098 fsn = xmalloc(fsnameLength + 1);
00099 strncpy(fsn, (char *)vm + vm->vmt_data[VMT_STUB].vmt_off,
00100 fsnameLength);
00101
00102 filesystems[i].mntPoint = fsnames[i] = fsn;
00103
00104 if (stat(filesystems[i].mntPoint, &sb)) {
00105 rpmError(RPMERR_STAT, _("failed to stat %s: %s\n"), fsnames[i],
00106 strerror(errno));
00107
00108 freeFilesystems();
00109 return 1;
00110 }
00111
00112 filesystems[i].dev = sb.st_dev;
00113 filesystems[i].rdonly = rdonly;
00114
00115
00116 vm = (struct vmount *)((char *)vm + vm->vmt_length);
00117 }
00118
00119 filesystems[i].mntPoint = NULL;
00120 fsnames[i] = NULL;
00121
00122 return 0;
00123 }
00124
00125 #else
00126
00132 static int getFilesystemList(void)
00133 {
00134 int numAlloced = 10;
00135 struct stat sb;
00136 int i;
00137 const char * mntdir;
00138 int rdonly = 0;
00139 # if GETMNTENT_ONE || GETMNTENT_TWO
00140 our_mntent item;
00141 FILE * mtab;
00142 # elif HAVE_GETMNTINFO_R
00143 struct statfs * mounts = NULL;
00144 int mntCount = 0, bufSize = 0, flags = MNT_NOWAIT;
00145 int nextMount = 0;
00146 # endif
00147
00148 rpmMessage(RPMMESS_DEBUG, _("getting list of mounted filesystems\n"));
00149
00150 # if GETMNTENT_ONE || GETMNTENT_TWO
00151 mtab = fopen(MOUNTED, "r");
00152 if (!mtab) {
00153 rpmError(RPMERR_MTAB, _("failed to open %s: %s\n"), MOUNTED,
00154 strerror(errno));
00155 return 1;
00156 }
00157 # elif HAVE_GETMNTINFO_R
00158 getmntinfo_r(&mounts, flags, &mntCount, &bufSize);
00159 # endif
00160
00161 filesystems = xcalloc((numAlloced + 1), sizeof(*filesystems));
00162
00163 numFilesystems = 0;
00164 while (1) {
00165 # if GETMNTENT_ONE
00166
00167
00168 our_mntent * itemptr = getmntent(mtab);
00169 if (!itemptr) break;
00170 item = *itemptr;
00171 mntdir = item.our_mntdir;
00172 #if defined(MNTOPT_RO)
00173
00174 if (hasmntopt(itemptr, MNTOPT_RO) != NULL)
00175 rdonly = 1;
00176
00177 #endif
00178
00179 # elif GETMNTENT_TWO
00180
00181 if (getmntent(mtab, &item)) break;
00182 mntdir = item.our_mntdir;
00183 # elif HAVE_GETMNTINFO_R
00184 if (nextMount == mntCount) break;
00185 mntdir = mounts[nextMount++].f_mntonname;
00186 # endif
00187
00188 if (strncmp(mntdir, "/mnt/", 5)) {
00189 if (stat(mntdir, &sb)) {
00190 rpmError(RPMERR_STAT, _("failed to stat %s: %s\n"), mntdir,
00191 strerror(errno));
00192
00193 freeFilesystems();
00194 return 1;
00195 }
00196 } else {
00197 sb.st_dev = 0;
00198 }
00199
00200 numFilesystems++;
00201 if ((numFilesystems + 1) == numAlloced) {
00202 numAlloced += 10;
00203 filesystems = xrealloc(filesystems,
00204 sizeof(*filesystems) * (numAlloced + 1));
00205 }
00206
00207 filesystems[numFilesystems-1].dev = sb.st_dev;
00208 filesystems[numFilesystems-1].mntPoint = xstrdup(mntdir);
00209 filesystems[numFilesystems-1].rdonly = rdonly;
00210 }
00211
00212 # if GETMNTENT_ONE || GETMNTENT_TWO
00213 (void) fclose(mtab);
00214 # elif HAVE_GETMNTINFO_R
00215 mounts = _free(mounts);
00216 # endif
00217
00218 filesystems[numFilesystems].dev = 0;
00219 filesystems[numFilesystems].mntPoint = NULL;
00220 filesystems[numFilesystems].rdonly = 0;
00221
00222 fsnames = xcalloc((numFilesystems + 1), sizeof(*fsnames));
00223 for (i = 0; i < numFilesystems; i++)
00224 fsnames[i] = filesystems[i].mntPoint;
00225 fsnames[numFilesystems] = NULL;
00226
00227 return 0;
00228 }
00229 #endif
00230
00231 int rpmGetFilesystemList(const char *** listptr, int * num)
00232 {
00233 if (!fsnames)
00234 if (getFilesystemList())
00235 return 1;
00236
00237 if (listptr) *listptr = fsnames;
00238 if (num) *num = numFilesystems;
00239
00240 return 0;
00241 }
00242
00243 int rpmGetFilesystemUsage(const char ** fileList, int_32 * fssizes, int numFiles,
00244 uint_32 ** usagesPtr, int flags)
00245 {
00246 int_32 * usages;
00247 int i, len, j;
00248 char * buf, * dirName;
00249 char * chptr;
00250 int maxLen;
00251 char * lastDir;
00252 const char * sourceDir;
00253 int lastfs = 0;
00254 int lastDev = -1;
00255 struct stat sb;
00256
00257 if (!fsnames)
00258 if (getFilesystemList())
00259 return 1;
00260
00261 usages = xcalloc(numFilesystems, sizeof(usages));
00262
00263 sourceDir = rpmGetPath("%{_sourcedir}", NULL);
00264
00265 maxLen = strlen(sourceDir);
00266 for (i = 0; i < numFiles; i++) {
00267 len = strlen(fileList[i]);
00268 if (maxLen < len) maxLen = len;
00269 }
00270
00271 buf = alloca(maxLen + 1);
00272 lastDir = alloca(maxLen + 1);
00273 dirName = alloca(maxLen + 1);
00274 *lastDir = '\0';
00275
00276
00277 for (i = 0; i < numFiles; i++) {
00278 if (*fileList[i] == '/') {
00279 strcpy(buf, fileList[i]);
00280 chptr = buf + strlen(buf) - 1;
00281 while (*chptr != '/') chptr--;
00282 if (chptr == buf)
00283 buf[1] = '\0';
00284 else
00285 *chptr-- = '\0';
00286 } else {
00287
00288 strcpy(buf, sourceDir);
00289 }
00290
00291 if (strcmp(lastDir, buf)) {
00292 strcpy(dirName, buf);
00293 chptr = dirName + strlen(dirName) - 1;
00294 while (stat(dirName, &sb)) {
00295 if (errno != ENOENT) {
00296 rpmError(RPMERR_STAT, _("failed to stat %s: %s\n"), buf,
00297 strerror(errno));
00298 sourceDir = _free(sourceDir);
00299 usages = _free(usages);
00300 return 1;
00301 }
00302
00303
00304 while (*chptr != '/') chptr--;
00305
00306 if (chptr == dirName)
00307 dirName[1] = '\0';
00308 else
00309 *chptr-- = '\0';
00310 }
00311
00312 if (lastDev != sb.st_dev) {
00313 for (j = 0; j < numFilesystems; j++)
00314 if (filesystems && filesystems[j].dev == sb.st_dev)
00315 break;
00316
00317 if (j == numFilesystems) {
00318 rpmError(RPMERR_BADDEV,
00319 _("file %s is on an unknown device\n"), buf);
00320 sourceDir = _free(sourceDir);
00321 usages = _free(usages);
00322 return 1;
00323 }
00324
00325 lastfs = j;
00326 lastDev = sb.st_dev;
00327 }
00328 }
00329
00330 strcpy(lastDir, buf);
00331 usages[lastfs] += fssizes[i];
00332 }
00333
00334 sourceDir = _free(sourceDir);
00335
00336 if (usagesPtr)
00337 *usagesPtr = usages;
00338 else
00339 usages = _free(usages);
00340
00341 return 0;
00342 }
00343