package.c revision 4ae77160727f8b92d61028269d1f49ae16873a08
11f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner/* 21f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner** 31f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner** Copyright 2010, The Android Open Source Project 41f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner** 51f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner** Licensed under the Apache License, Version 2.0 (the "License"); 61f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner** you may not use this file except in compliance with the License. 71f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner** You may obtain a copy of the License at 81f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner** 91f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner** http://www.apache.org/licenses/LICENSE-2.0 101f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner** 111f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner** Unless required by applicable law or agreed to in writing, software 121f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner** distributed under the License is distributed on an "AS IS" BASIS, 131f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 141f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner** See the License for the specific language governing permissions and 151f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner** limitations under the License. 161f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner*/ 171f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner#include <errno.h> 181f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner#include <fcntl.h> 191f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner#include <unistd.h> 201f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner#include <sys/stat.h> 215792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner#include <sys/mman.h> 221f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner#include <private/android_filesystem_config.h> 231f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner#include "package.h" 241f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 251f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner/* 261f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * WARNING WARNING WARNING WARNING 271f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 281f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * The following code runs as root on production devices, before 291f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * the run-as command has dropped the uid/gid. Hence be very 301f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * conservative and keep in mind the following: 311f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 321f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * - Performance does not matter here, clarity and safety of the code 331f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * does however. Documentation is a must. 341f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 351f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * - Avoid calling C library functions with complex implementations 361f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * like malloc() and printf(). You want to depend on simple system 371f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * calls instead, which behaviour is not going to be altered in 381f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * unpredictible ways by environment variables or system properties. 391f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 401f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * - Do not trust user input and/or the filesystem whenever possible. 411f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 421f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 431f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 441f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner/* The file containing the list of installed packages on the system */ 451f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner#define PACKAGES_LIST_FILE "/data/system/packages.list" 461f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 471f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner/* Copy 'srclen' string bytes from 'src' into buffer 'dst' of size 'dstlen' 481f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * This function always zero-terminate the destination buffer unless 491f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 'dstlen' is 0, even in case of overflow. 501f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 511f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerstatic void 521f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerstring_copy(char* dst, size_t dstlen, const char* src, size_t srclen) 531f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner{ 541f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner const char* srcend = src + srclen; 551f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner const char* dstend = dst + dstlen; 561f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 571f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (dstlen == 0) 581f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return; 591f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 601f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner dstend--; /* make room for terminating zero */ 611f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 621f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner while (dst < dstend && src < srcend && *src != '\0') 631f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner *dst++ = *src++; 641f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 651f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner *dst = '\0'; /* zero-terminate result */ 661f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner} 671f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 685792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner/* Open 'filename' and map it into our address-space. 695792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner * Returns buffer address, or NULL on error 705792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner * On exit, *filesize will be set to the file's size, or 0 on error 711f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 725792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turnerstatic void* 735792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turnermap_file(const char* filename, size_t* filesize) 741f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner{ 755792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner int fd, ret, old_errno; 765792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner struct stat st; 775792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner size_t length = 0; 785792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner void* address = NULL; 791f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 805792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner *filesize = 0; 811f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 821f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* open the file for reading */ 835792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner fd = TEMP_FAILURE_RETRY(open(filename, O_RDONLY)); 841f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (fd < 0) 855792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner return NULL; 861f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 875792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner /* get its size */ 885792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner ret = TEMP_FAILURE_RETRY(fstat(fd, &st)); 895792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner if (ret < 0) 905792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner goto EXIT; 915792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner 924ae77160727f8b92d61028269d1f49ae16873a08Nick Kralevich /* Ensure that the file is owned by the system user */ 934ae77160727f8b92d61028269d1f49ae16873a08Nick Kralevich if ((st.st_uid != AID_SYSTEM) || (st.st_gid != AID_SYSTEM)) { 944ae77160727f8b92d61028269d1f49ae16873a08Nick Kralevich goto EXIT; 954ae77160727f8b92d61028269d1f49ae16873a08Nick Kralevich } 964ae77160727f8b92d61028269d1f49ae16873a08Nick Kralevich 974ae77160727f8b92d61028269d1f49ae16873a08Nick Kralevich /* Ensure that the file has sane permissions */ 984ae77160727f8b92d61028269d1f49ae16873a08Nick Kralevich if ((st.st_mode & S_IWOTH) != 0) { 994ae77160727f8b92d61028269d1f49ae16873a08Nick Kralevich goto EXIT; 1004ae77160727f8b92d61028269d1f49ae16873a08Nick Kralevich } 1014ae77160727f8b92d61028269d1f49ae16873a08Nick Kralevich 1025792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner /* Ensure that the size is not ridiculously large */ 1035792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner length = (size_t)st.st_size; 1045792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner if ((off_t)length != st.st_size) { 1055792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner errno = ENOMEM; 1065792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner goto EXIT; 1075792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner } 1085792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner 1095792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner /* Memory-map the file now */ 1105792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner address = TEMP_FAILURE_RETRY(mmap(NULL, length, PROT_READ, MAP_PRIVATE, fd, 0)); 1115792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner if (address == MAP_FAILED) { 1125792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner address = NULL; 1135792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner goto EXIT; 1145792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner } 1151f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 1165792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner /* We're good, return size */ 1175792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner *filesize = length; 1185792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner 1195792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' TurnerEXIT: 1201f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* close the file, preserve old errno for better diagnostics */ 1211f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner old_errno = errno; 1221f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner close(fd); 1231f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner errno = old_errno; 1241f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 1255792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner return address; 1265792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner} 1275792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner 1285792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner/* unmap the file, but preserve errno */ 1295792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turnerstatic void 1305792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turnerunmap_file(void* address, size_t size) 1315792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner{ 1325792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner int old_errno = errno; 1335792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner TEMP_FAILURE_RETRY(munmap(address, size)); 1345792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner errno = old_errno; 1351f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner} 1361f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 1371f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner/* Check that a given directory: 1381f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * - exists 1391f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * - is owned by a given uid/gid 1401f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * - is a real directory, not a symlink 1411f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * - isn't readable or writable by others 1421f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 1431f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * Return 0 on success, or -1 on error. 1441f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * errno is set to EINVAL in case of failed check. 1451f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 1461f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerstatic int 1471f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnercheck_directory_ownership(const char* path, uid_t uid) 1481f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner{ 1491f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner int ret; 1501f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner struct stat st; 1511f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 1521f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner do { 1531f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner ret = lstat(path, &st); 1541f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner } while (ret < 0 && errno == EINTR); 1551f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 1561f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (ret < 0) 1571f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return -1; 1581f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 1591f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* must be a real directory, not a symlink */ 1601f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (!S_ISDIR(st.st_mode)) 1611f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner goto BAD; 1621f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 1631f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* must be owned by specific uid/gid */ 1641f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (st.st_uid != uid || st.st_gid != uid) 1651f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner goto BAD; 1661f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 1671f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* must not be readable or writable by others */ 1681f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if ((st.st_mode & (S_IROTH|S_IWOTH)) != 0) 1691f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner goto BAD; 1701f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 1711f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* everything ok */ 1721f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return 0; 1731f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 1741f4d95296acf34a93128332441782a80c10845b4David 'Digit' TurnerBAD: 1751f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner errno = EINVAL; 1761f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return -1; 1771f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner} 1781f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 1791f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner/* This function is used to check the data directory path for safety. 1801f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * We check that every sub-directory is owned by the 'system' user 1811f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * and exists and is not a symlink. We also check that the full directory 1821f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * path is properly owned by the user ID. 1831f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 1841f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * Return 0 on success, -1 on error. 1851f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 1861f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerint 1871f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnercheck_data_path(const char* dataPath, uid_t uid) 1881f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner{ 1891f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner int nn; 1901f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 1911f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* the path should be absolute */ 1921f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (dataPath[0] != '/') { 1931f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner errno = EINVAL; 1941f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return -1; 1951f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner } 1961f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 1971f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* look for all sub-paths, we do that by finding 1981f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * directory separators in the input path and 1991f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * checking each sub-path independently 2001f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 2011f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner for (nn = 1; dataPath[nn] != '\0'; nn++) 2021f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner { 2031f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner char subpath[PATH_MAX]; 2041f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2051f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* skip non-separator characters */ 2061f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (dataPath[nn] != '/') 2071f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner continue; 2081f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2091f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* handle trailing separator case */ 2101f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (dataPath[nn+1] == '\0') { 2111f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner break; 2121f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner } 2131f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2141f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* found a separator, check that dataPath is not too long. */ 2151f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (nn >= (int)(sizeof subpath)) { 2161f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner errno = EINVAL; 2171f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return -1; 2181f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner } 2191f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2201f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* reject any '..' subpath */ 2211f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (nn >= 3 && 2221f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner dataPath[nn-3] == '/' && 2231f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner dataPath[nn-2] == '.' && 2241f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner dataPath[nn-1] == '.') { 2251f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner errno = EINVAL; 2261f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return -1; 2271f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner } 2281f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2291f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* copy to 'subpath', then check ownership */ 2301f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner memcpy(subpath, dataPath, nn); 2311f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner subpath[nn] = '\0'; 2321f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2331f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (check_directory_ownership(subpath, AID_SYSTEM) < 0) 2341f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return -1; 2351f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner } 2361f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2371f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* All sub-paths were checked, now verify that the full data 2381f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * directory is owned by the application uid 2391f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 2401f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (check_directory_ownership(dataPath, uid) < 0) 2411f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return -1; 2421f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2431f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* all clear */ 2441f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return 0; 2451f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner} 2461f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2471f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner/* Return TRUE iff a character is a space or tab */ 2481f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerstatic inline int 2491f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turneris_space(char c) 2501f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner{ 2511f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return (c == ' ' || c == '\t'); 2521f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner} 2531f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2541f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner/* Skip any space or tab character from 'p' until 'end' is reached. 2551f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * Return new position. 2561f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 2571f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerstatic const char* 2581f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerskip_spaces(const char* p, const char* end) 2591f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner{ 2601f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner while (p < end && is_space(*p)) 2611f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner p++; 2621f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2631f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return p; 2641f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner} 2651f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2661f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner/* Skip any non-space and non-tab character from 'p' until 'end'. 2671f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * Return new position. 2681f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 2691f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerstatic const char* 2701f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerskip_non_spaces(const char* p, const char* end) 2711f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner{ 2721f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner while (p < end && !is_space(*p)) 2731f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner p++; 2741f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2751f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return p; 2761f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner} 2771f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2781f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner/* Find the first occurence of 'ch' between 'p' and 'end' 2791f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * Return its position, or 'end' if none is found. 2801f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 2811f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerstatic const char* 2821f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerfind_first(const char* p, const char* end, char ch) 2831f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner{ 2841f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner while (p < end && *p != ch) 2851f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner p++; 2861f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2871f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return p; 2881f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner} 2891f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 2901f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner/* Check that the non-space string starting at 'p' and eventually 2911f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * ending at 'end' equals 'name'. Return new position (after name) 2921f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * on success, or NULL on failure. 2931f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 2941f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * This function fails is 'name' is NULL, empty or contains any space. 2951f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 2961f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerstatic const char* 2971f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnercompare_name(const char* p, const char* end, const char* name) 2981f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner{ 2991f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* 'name' must not be NULL or empty */ 3001f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (name == NULL || name[0] == '\0' || p == end) 3011f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return NULL; 3021f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3031f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* compare characters to those in 'name', excluding spaces */ 3041f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner while (*name) { 3051f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* note, we don't check for *p == '\0' since 3061f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * it will be caught in the next conditional. 3071f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 3081f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (p >= end || is_space(*p)) 3091f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner goto BAD; 3101f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3111f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (*p != *name) 3121f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner goto BAD; 3131f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3141f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner p++; 3151f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner name++; 3161f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner } 3171f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3181f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* must be followed by end of line or space */ 3191f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (p < end && !is_space(*p)) 3201f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner goto BAD; 3211f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3221f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return p; 3231f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3241f4d95296acf34a93128332441782a80c10845b4David 'Digit' TurnerBAD: 3251f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return NULL; 3261f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner} 3271f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3281f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner/* Parse one or more whitespace characters starting from '*pp' 3291f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * until 'end' is reached. Updates '*pp' on exit. 3301f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 3311f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * Return 0 on success, -1 on failure. 3321f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 3331f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerstatic int 3341f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerparse_spaces(const char** pp, const char* end) 3351f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner{ 3361f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner const char* p = *pp; 3371f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3381f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (p >= end || !is_space(*p)) { 3391f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner errno = EINVAL; 3401f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return -1; 3411f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner } 3421f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner p = skip_spaces(p, end); 3431f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner *pp = p; 3441f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return 0; 3451f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner} 3461f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3471f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner/* Parse a positive decimal number starting from '*pp' until 'end' 3481f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * is reached. Adjust '*pp' on exit. Return decimal value or -1 3491f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * in case of error. 3501f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 3511f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * If the value is larger than INT_MAX, -1 will be returned, 3521f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * and errno set to EOVERFLOW. 3531f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 3541f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * If '*pp' does not start with a decimal digit, -1 is returned 3551f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * and errno set to EINVAL. 3561f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 3571f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerstatic int 3581f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerparse_positive_decimal(const char** pp, const char* end) 3591f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner{ 3601f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner const char* p = *pp; 3611f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner int value = 0; 3621f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner int overflow = 0; 3631f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3641f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (p >= end || *p < '0' || *p > '9') { 3651f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner errno = EINVAL; 3661f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return -1; 3671f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner } 3681f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3691f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner while (p < end) { 3701f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner int ch = *p; 3711f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner unsigned d = (unsigned)(ch - '0'); 3721f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner int val2; 3731f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3741f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (d >= 10U) /* d is unsigned, no lower bound check */ 3751f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner break; 3761f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3771f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner val2 = value*10 + (int)d; 3781f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (val2 < value) 3791f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner overflow = 1; 3801f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner value = val2; 3811f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner p++; 3821f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner } 3831f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner *pp = p; 3841f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3851f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (overflow) { 3861f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner errno = EOVERFLOW; 3871f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner value = -1; 3881f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner } 3891f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return value; 3901f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3911f4d95296acf34a93128332441782a80c10845b4David 'Digit' TurnerBAD: 3921f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner *pp = p; 3931f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return -1; 3941f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner} 3951f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 3961f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner/* Read the system's package database and extract information about 3971f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 'pkgname'. Return 0 in case of success, or -1 in case of error. 3981f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 3991f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * If the package is unknown, return -1 and set errno to ENOENT 4001f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * If the package database is corrupted, return -1 and set errno to EINVAL 4011f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 4021f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerint 4031f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turnerget_package_info(const char* pkgName, PackageInfo *info) 4041f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner{ 4055792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner char* buffer; 4065792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner size_t buffer_len; 4071f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner const char* p; 4081f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner const char* buffer_end; 4095792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner int result = -1; 4101f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4111f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner info->uid = 0; 4121f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner info->isDebuggable = 0; 4131f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner info->dataDir[0] = '\0'; 4141f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4155792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner buffer = map_file(PACKAGES_LIST_FILE, &buffer_len); 4165792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner if (buffer == NULL) 4171f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return -1; 4181f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4191f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner p = buffer; 4201f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner buffer_end = buffer + buffer_len; 4211f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4221f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* expect the following format on each line of the control file: 4231f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 4241f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * <pkgName> <uid> <debugFlag> <dataDir> 4251f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 4261f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * where: 4271f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * <pkgName> is the package's name 4281f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * <uid> is the application-specific user Id (decimal) 4291f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * <debugFlag> is 1 if the package is debuggable, or 0 otherwise 4301f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * <dataDir> is the path to the package's data directory (e.g. /data/data/com.example.foo) 4311f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * 4321f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * The file is generated in com.android.server.PackageManagerService.Settings.writeLP() 4331f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 4341f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4351f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner while (p < buffer_end) { 4361f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* find end of current line and start of next one */ 4371f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner const char* end = find_first(p, buffer_end, '\n'); 4381f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner const char* next = (end < buffer_end) ? end + 1 : buffer_end; 4391f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner const char* q; 4401f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner int uid, debugFlag; 4411f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4421f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* first field is the package name */ 4431f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner p = compare_name(p, end, pkgName); 4441f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (p == NULL) 4451f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner goto NEXT_LINE; 4461f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4471f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* skip spaces */ 4481f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (parse_spaces(&p, end) < 0) 4491f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner goto BAD_FORMAT; 4501f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4511f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* second field is the pid */ 4521f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner uid = parse_positive_decimal(&p, end); 4531f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (uid < 0) 4541f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner return -1; 4551f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4561f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner info->uid = (uid_t) uid; 4571f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4581f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* skip spaces */ 4591f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (parse_spaces(&p, end) < 0) 4601f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner goto BAD_FORMAT; 4611f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4621f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* third field is debug flag (0 or 1) */ 4631f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner debugFlag = parse_positive_decimal(&p, end); 4641f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner switch (debugFlag) { 4651f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner case 0: 4661f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner info->isDebuggable = 0; 4671f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner break; 4681f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner case 1: 4691f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner info->isDebuggable = 1; 4701f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner break; 4711f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner default: 4721f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner goto BAD_FORMAT; 4731f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner } 4741f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4751f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* skip spaces */ 4761f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (parse_spaces(&p, end) < 0) 4771f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner goto BAD_FORMAT; 4781f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4791f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* fourth field is data directory path and must not contain 4801f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner * spaces. 4811f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner */ 4821f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner q = skip_non_spaces(p, end); 4831f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner if (q == p) 4841f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner goto BAD_FORMAT; 4851f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4861f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner string_copy(info->dataDir, sizeof info->dataDir, p, q - p); 4871f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4881f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* Ignore the rest */ 4895792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner result = 0; 4905792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner goto EXIT; 4911f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4921f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner NEXT_LINE: 4931f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner p = next; 4941f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner } 4951f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 4961f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner /* the package is unknown */ 4971f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner errno = ENOENT; 4985792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner result = -1; 4995792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner goto EXIT; 5001f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner 5011f4d95296acf34a93128332441782a80c10845b4David 'Digit' TurnerBAD_FORMAT: 5021f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner errno = EINVAL; 5035792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner result = -1; 5045792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner 5055792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' TurnerEXIT: 5065792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner unmap_file(buffer, buffer_len); 5075792ce79cc79cd0eef9fadd6351521b128b4e85cDavid 'Digit' Turner return result; 5081f4d95296acf34a93128332441782a80c10845b4David 'Digit' Turner} 509