diff --git a/init/builtins.cpp b/init/builtins.cpp
index f4ba018..da4b84e 100644
--- a/init/builtins.cpp
+++ b/init/builtins.cpp
@@ -304,7 +304,7 @@
     /* mkdir <path> [mode] [owner] [group] */
 
     if (args.size() >= 3) {
-        mode = std::stoul(args[2], 0, 8);
+        mode = std::strtoul(args[2].c_str(), 0, 8);
     }
 
     ret = make_dir(args[1].c_str(), mode);
@@ -637,10 +637,13 @@
 static int do_setrlimit(const std::vector<std::string>& args) {
     struct rlimit limit;
     int resource;
-    resource = std::stoi(args[1]);
-    limit.rlim_cur = std::stoi(args[2]);
-    limit.rlim_max = std::stoi(args[3]);
-    return setrlimit(resource, &limit);
+    if (android::base::ParseInt(args[1], &resource) &&
+        android::base::ParseUint(args[2], &limit.rlim_cur) &&
+        android::base::ParseUint(args[3], &limit.rlim_max)) {
+        return setrlimit(resource, &limit);
+    }
+    LOG(WARNING) << "ignoring setrlimit " << args[1] << " " << args[2] << " " << args[3];
+    return -1;
 }
 
 static int do_start(const std::vector<std::string>& args) {
@@ -709,7 +712,7 @@
     std::string timeout = property_get("ro.build.shutdown_timeout");
     unsigned int delay = 0;
 
-    if (android::base::ParseUint(timeout.c_str(), &delay) && delay > 0) {
+    if (android::base::ParseUint(timeout, &delay) && delay > 0) {
         Timer t;
         // Ask all services to terminate.
         ServiceManager::GetInstance().ForEachService(
@@ -764,13 +767,11 @@
 }
 
 static int do_sysclktz(const std::vector<std::string>& args) {
-    struct timezone tz;
-
-    memset(&tz, 0, sizeof(tz));
-    tz.tz_minuteswest = std::stoi(args[1]);
-    if (settimeofday(NULL, &tz))
-        return -1;
-    return 0;
+    struct timezone tz = {};
+    if (android::base::ParseInt(args[1], &tz.tz_minuteswest) && settimeofday(NULL, &tz) != -1) {
+        return 0;
+    }
+    return -1;
 }
 
 static int do_verity_load_state(const std::vector<std::string>& args) {
@@ -914,7 +915,8 @@
 
 static int do_loglevel(const std::vector<std::string>& args) {
     // TODO: support names instead/as well?
-    int log_level = std::stoi(args[1]);
+    int log_level = -1;
+    android::base::ParseInt(args[1], &log_level);
     android::base::LogSeverity severity;
     switch (log_level) {
         case 7: severity = android::base::DEBUG; break;
@@ -947,9 +949,12 @@
     if (args.size() == 2) {
         return wait_for_file(args[1].c_str(), COMMAND_RETRY_TIMEOUT);
     } else if (args.size() == 3) {
-        return wait_for_file(args[1].c_str(), std::stoi(args[2]));
-    } else
-        return -1;
+        int timeout;
+        if (android::base::ParseInt(args[2], &timeout)) {
+            return wait_for_file(args[1].c_str(), timeout);
+        }
+    }
+    return -1;
 }
 
 /*
diff --git a/init/service.cpp b/init/service.cpp
index 503d84f..22fb013 100644
--- a/init/service.cpp
+++ b/init/service.cpp
@@ -31,6 +31,7 @@
 #include <selinux/selinux.h>
 
 #include <android-base/file.h>
+#include <android-base/parseint.h>
 #include <android-base/stringprintf.h>
 #include <android-base/strings.h>
 #include <cutils/android_reboot.h>
@@ -46,6 +47,7 @@
 #include "property_service.h"
 #include "util.h"
 
+using android::base::ParseInt;
 using android::base::StringPrintf;
 using android::base::WriteStringToFile;
 
@@ -351,22 +353,19 @@
 }
 
 bool Service::ParsePriority(const std::vector<std::string>& args, std::string* err) {
-    priority_ = std::stoi(args[1]);
-
-    if (priority_ < ANDROID_PRIORITY_HIGHEST || priority_ > ANDROID_PRIORITY_LOWEST) {
-        priority_ = 0;
+    priority_ = 0;
+    if (!ParseInt(args[1], &priority_,
+                  static_cast<int>(ANDROID_PRIORITY_LOWEST),
+                  static_cast<int>(ANDROID_PRIORITY_HIGHEST))) {
         *err = StringPrintf("process priority value must be range %d - %d",
                 ANDROID_PRIORITY_HIGHEST, ANDROID_PRIORITY_LOWEST);
         return false;
     }
-
     return true;
 }
 
 bool Service::ParseIoprio(const std::vector<std::string>& args, std::string* err) {
-    ioprio_pri_ = std::stoul(args[2], 0, 8);
-
-    if (ioprio_pri_ < 0 || ioprio_pri_ > 7) {
+    if (!ParseInt(args[2], &ioprio_pri_, 0, 7)) {
         *err = "priority value must be range 0 - 7";
         return false;
     }
@@ -387,7 +386,12 @@
 
 bool Service::ParseKeycodes(const std::vector<std::string>& args, std::string* err) {
     for (std::size_t i = 1; i < args.size(); i++) {
-        keycodes_.emplace_back(std::stoi(args[i]));
+        int code;
+        if (ParseInt(args[i], &code)) {
+            keycodes_.emplace_back(code);
+        } else {
+            LOG(WARNING) << "ignoring invalid keycode: " << args[i];
+        }
     }
     return true;
 }
@@ -420,17 +424,13 @@
 }
 
 bool Service::ParseOomScoreAdjust(const std::vector<std::string>& args, std::string* err) {
-    oom_score_adjust_ = std::stol(args[1], 0, 10);
-
-    if (oom_score_adjust_ < -1000 || oom_score_adjust_ > 1000) {
+    if (!ParseInt(args[1], &oom_score_adjust_, -1000, 1000)) {
         *err = "oom_score_adjust value must be in range -1000 - +1000";
         return false;
     }
-
     return true;
 }
 
-
 bool Service::ParseSeclabel(const std::vector<std::string>& args, std::string* err) {
     seclabel_ = args[1];
     return true;
@@ -448,7 +448,7 @@
         return false;
     }
 
-    int perm = std::stoul(args[3], 0, 8);
+    int perm = std::strtoul(args[3].c_str(), 0, 8);
     uid_t uid = args.size() > 4 ? decode_uid(args[4].c_str()) : 0;
     gid_t gid = args.size() > 5 ? decode_uid(args[5].c_str()) : 0;
     std::string socketcon = args.size() > 6 ? args[6] : "";