diff --git a/applypatch/applypatch.cpp b/applypatch/applypatch.cpp
index c8594c2..270fde5 100644
--- a/applypatch/applypatch.cpp
+++ b/applypatch/applypatch.cpp
@@ -596,7 +596,7 @@
 
 int CacheSizeCheck(size_t bytes) {
     if (MakeFreeSpaceOnCache(bytes) < 0) {
-        printf("unable to make %ld bytes available on /cache\n", (long)bytes);
+        printf("unable to make %zu bytes available on /cache\n", bytes);
         return 1;
     } else {
         return 0;
diff --git a/applypatch/imgpatch.cpp b/applypatch/imgpatch.cpp
index 4251c01..f5aed76 100644
--- a/applypatch/imgpatch.cpp
+++ b/applypatch/imgpatch.cpp
@@ -229,8 +229,8 @@
                 ssize_t have = temp_data.size() - strm.avail_out;
 
                 if (sink(temp_data.data(), have, token) != have) {
-                    printf("failed to write %ld compressed bytes to output\n",
-                           (long)have);
+                    printf("failed to write %zd compressed bytes to output\n",
+                           have);
                     return -1;
                 }
                 if (ctx) SHA1_Update(ctx, temp_data.data(), have);
diff --git a/applypatch/utils.cpp b/applypatch/utils.cpp
index 4a80be7..fef250f 100644
--- a/applypatch/utils.cpp
+++ b/applypatch/utils.cpp
@@ -27,7 +27,7 @@
 }
 
 /** Write an 8-byte value to f in little-endian order. */
-void Write8(long long value, FILE* f) {
+void Write8(int64_t value, FILE* f) {
   fputc(value & 0xff, f);
   fputc((value >> 8) & 0xff, f);
   fputc((value >> 16) & 0xff, f);
@@ -52,14 +52,14 @@
                  (unsigned int)p[0]);
 }
 
-long long Read8(void* pv) {
+int64_t Read8(void* pv) {
     unsigned char* p = reinterpret_cast<unsigned char*>(pv);
-    return (long long)(((unsigned long long)p[7] << 56) |
-                       ((unsigned long long)p[6] << 48) |
-                       ((unsigned long long)p[5] << 40) |
-                       ((unsigned long long)p[4] << 32) |
-                       ((unsigned long long)p[3] << 24) |
-                       ((unsigned long long)p[2] << 16) |
-                       ((unsigned long long)p[1] << 8) |
-                       (unsigned long long)p[0]);
+    return (int64_t)(((uint64_t)p[7] << 56) |
+                       ((uint64_t)p[6] << 48) |
+                       ((uint64_t)p[5] << 40) |
+                       ((uint64_t)p[4] << 32) |
+                       ((uint64_t)p[3] << 24) |
+                       ((uint64_t)p[2] << 16) |
+                       ((uint64_t)p[1] << 8) |
+                       (uint64_t)p[0]);
 }
diff --git a/applypatch/utils.h b/applypatch/utils.h
index bc97f17..1c34edd 100644
--- a/applypatch/utils.h
+++ b/applypatch/utils.h
@@ -17,14 +17,15 @@
 #ifndef _BUILD_TOOLS_APPLYPATCH_UTILS_H
 #define _BUILD_TOOLS_APPLYPATCH_UTILS_H
 
+#include <inttypes.h>
 #include <stdio.h>
 
 // Read and write little-endian values of various sizes.
 
 void Write4(int value, FILE* f);
-void Write8(long long value, FILE* f);
+void Write8(int64_t value, FILE* f);
 int Read2(void* p);
 int Read4(void* p);
-long long Read8(void* p);
+int64_t Read8(void* p);
 
 #endif //  _BUILD_TOOLS_APPLYPATCH_UTILS_H
diff --git a/edify/expr.cpp b/edify/expr.cpp
index cd1e087..c34342f 100644
--- a/edify/expr.cpp
+++ b/edify/expr.cpp
@@ -286,13 +286,14 @@
     bool result = false;
     char* end;
 
-    long l_int = strtol(left, &end, 10);
+    // Parse up to at least long long or 64-bit integers.
+    int64_t l_int = static_cast<int64_t>(strtoll(left, &end, 10));
     if (left[0] == '\0' || *end != '\0') {
         goto done;
     }
 
-    long r_int;
-    r_int = strtol(right, &end, 10);
+    int64_t r_int;
+    r_int = static_cast<int64_t>(strtoll(right, &end, 10));
     if (right[0] == '\0' || *end != '\0') {
         goto done;
     }
diff --git a/minui/events.cpp b/minui/events.cpp
index 3b2262a..a6b9671 100644
--- a/minui/events.cpp
+++ b/minui/events.cpp
@@ -49,7 +49,7 @@
 static unsigned ev_dev_count = 0;
 static unsigned ev_misc_count = 0;
 
-static bool test_bit(size_t bit, unsigned long* array) {
+static bool test_bit(size_t bit, unsigned long* array) { // NOLINT
     return (array[bit/BITS_PER_LONG] & (1UL << (bit % BITS_PER_LONG))) != 0;
 }
 
@@ -65,7 +65,8 @@
     if (dir != NULL) {
         dirent* de;
         while ((de = readdir(dir))) {
-            unsigned long ev_bits[BITS_TO_LONGS(EV_MAX)];
+            // Use unsigned long to match ioctl's parameter type.
+            unsigned long ev_bits[BITS_TO_LONGS(EV_MAX)]; // NOLINT
 
 //            fprintf(stderr,"/dev/input/%s\n", de->d_name);
             if (strncmp(de->d_name, "event", 5)) continue;
@@ -175,8 +176,9 @@
 }
 
 int ev_sync_key_state(ev_set_key_callback set_key_cb, void* data) {
-    unsigned long ev_bits[BITS_TO_LONGS(EV_MAX)];
-    unsigned long key_bits[BITS_TO_LONGS(KEY_MAX)];
+    // Use unsigned long to match ioctl's parameter type.
+    unsigned long ev_bits[BITS_TO_LONGS(EV_MAX)]; // NOLINT
+    unsigned long key_bits[BITS_TO_LONGS(KEY_MAX)]; // NOLINT
 
     for (size_t i = 0; i < ev_dev_count; ++i) {
         memset(ev_bits, 0, sizeof(ev_bits));
@@ -203,8 +205,9 @@
 }
 
 void ev_iterate_available_keys(std::function<void(int)> f) {
-    unsigned long ev_bits[BITS_TO_LONGS(EV_MAX)];
-    unsigned long key_bits[BITS_TO_LONGS(KEY_MAX)];
+    // Use unsigned long to match ioctl's parameter type.
+    unsigned long ev_bits[BITS_TO_LONGS(EV_MAX)]; // NOLINT
+    unsigned long key_bits[BITS_TO_LONGS(KEY_MAX)]; // NOLINT
 
     for (size_t i = 0; i < ev_dev_count; ++i) {
         memset(ev_bits, 0, sizeof(ev_bits));
diff --git a/recovery-refresh.cpp b/recovery-refresh.cpp
index 70adc70..333367e 100644
--- a/recovery-refresh.cpp
+++ b/recovery-refresh.cpp
@@ -92,7 +92,7 @@
         if (!isdigit(number.data()[0])) {
             name += ".1";
         } else {
-            unsigned long long i = std::stoull(number);
+            auto i = std::stoull(number);
             name = sub + "." + std::to_string(i + 1);
         }
     }
diff --git a/recovery.cpp b/recovery.cpp
index 169413a..20c6ca1 100644
--- a/recovery.cpp
+++ b/recovery.cpp
@@ -391,7 +391,7 @@
 }
 
 // How much of the temp log we have copied to the copy in cache.
-static long tmplog_offset = 0;
+static off_t tmplog_offset = 0;
 
 static void copy_log_file(const char* source, const char* destination, bool append) {
     FILE* dest_fp = fopen_path(destination, append ? "a" : "w");
@@ -401,7 +401,7 @@
         FILE* source_fp = fopen(source, "r");
         if (source_fp != nullptr) {
             if (append) {
-                fseek(source_fp, tmplog_offset, SEEK_SET);  // Since last write
+                fseeko(source_fp, tmplog_offset, SEEK_SET);  // Since last write
             }
             char buf[4096];
             size_t bytes;
@@ -409,7 +409,7 @@
                 fwrite(buf, 1, bytes, dest_fp);
             }
             if (append) {
-                tmplog_offset = ftell(source_fp);
+                tmplog_offset = ftello(source_fp);
             }
             check_and_fclose(source_fp, source);
         }
@@ -1213,7 +1213,7 @@
         if (!isdigit(number.data()[0])) {
             name += ".1";
         } else {
-            unsigned long long i = std::stoull(number);
+            auto i = std::stoull(number);
             name = sub + "." + std::to_string(i + 1);
         }
     }
diff --git a/screen_ui.cpp b/screen_ui.cpp
index 522aa6b..1d33269 100644
--- a/screen_ui.cpp
+++ b/screen_ui.cpp
@@ -356,7 +356,7 @@
         // minimum of 20ms delay between frames
         double delay = interval - (end-start);
         if (delay < 0.02) delay = 0.02;
-        usleep((long)(delay * 1000000));
+        usleep(static_cast<useconds_t>(delay * 1000000));
     }
 }
 
@@ -572,8 +572,8 @@
 }
 
 void ScreenRecoveryUI::ShowFile(FILE* fp) {
-    std::vector<long> offsets;
-    offsets.push_back(ftell(fp));
+    std::vector<off_t> offsets;
+    offsets.push_back(ftello(fp));
     ClearText();
 
     struct stat sb;
@@ -583,7 +583,7 @@
     while (true) {
         if (show_prompt) {
             PrintOnScreenOnly("--(%d%% of %d bytes)--",
-                  static_cast<int>(100 * (double(ftell(fp)) / double(sb.st_size))),
+                  static_cast<int>(100 * (double(ftello(fp)) / double(sb.st_size))),
                   static_cast<int>(sb.st_size));
             Redraw();
             while (show_prompt) {
@@ -602,7 +602,7 @@
                     if (feof(fp)) {
                         return;
                     }
-                    offsets.push_back(ftell(fp));
+                    offsets.push_back(ftello(fp));
                 }
             }
             ClearText();
diff --git a/uncrypt/uncrypt.cpp b/uncrypt/uncrypt.cpp
index 43a2c2a..a1de6a1 100644
--- a/uncrypt/uncrypt.cpp
+++ b/uncrypt/uncrypt.cpp
@@ -200,8 +200,9 @@
 
     std::vector<int> ranges;
 
-    std::string s = android::base::StringPrintf("%s\n%" PRId64 " %ld\n",
-                       blk_dev, sb.st_size, static_cast<long>(sb.st_blksize));
+    std::string s = android::base::StringPrintf("%s\n%" PRId64 " %" PRId64 "\n",
+                       blk_dev, static_cast<int64_t>(sb.st_size),
+                       static_cast<int64_t>(sb.st_blksize));
     if (!android::base::WriteStringToFd(s, mapfd)) {
         ALOGE("failed to write %s: %s", tmp_map_file.c_str(), strerror(errno));
         return -1;
diff --git a/updater/install.cpp b/updater/install.cpp
index 925604f..4f52684 100644
--- a/updater/install.cpp
+++ b/updater/install.cpp
@@ -602,8 +602,8 @@
         v->size = mzGetZipEntryUncompLen(entry);
         v->data = reinterpret_cast<char*>(malloc(v->size));
         if (v->data == NULL) {
-            printf("%s: failed to allocate %ld bytes for %s\n",
-                    name, (long)v->size, zip_path);
+            printf("%s: failed to allocate %zd bytes for %s\n",
+                    name, v->size, zip_path);
             goto done1;
         }
 
@@ -992,7 +992,8 @@
 
     buffer = reinterpret_cast<char*>(malloc(st.st_size+1));
     if (buffer == NULL) {
-        ErrorAbort(state, "%s: failed to alloc %lld bytes", name, (long long)st.st_size+1);
+        ErrorAbort(state, "%s: failed to alloc %zu bytes", name,
+                   static_cast<size_t>(st.st_size+1));
         goto done;
     }
 
@@ -1004,8 +1005,8 @@
     }
 
     if (ota_fread(buffer, 1, st.st_size, f) != static_cast<size_t>(st.st_size)) {
-        ErrorAbort(state, "%s: failed to read %lld bytes from %s",
-                   name, (long long)st.st_size+1, filename);
+        ErrorAbort(state, "%s: failed to read %zu bytes from %s",
+                   name, static_cast<size_t>(st.st_size), filename);
         ota_fclose(f);
         goto done;
     }
diff --git a/wear_ui.cpp b/wear_ui.cpp
index 50aeb38..48278ff 100644
--- a/wear_ui.cpp
+++ b/wear_ui.cpp
@@ -320,7 +320,7 @@
         // minimum of 20ms delay between frames
         double delay = interval - (end-start);
         if (delay < 0.02) delay = 0.02;
-        usleep((long)(delay * 1000000));
+        usleep(static_cast<useconds_t>(delay * 1000000));
     }
 }
 
@@ -573,8 +573,8 @@
 }
 
 void WearRecoveryUI::ShowFile(FILE* fp) {
-    std::vector<long> offsets;
-    offsets.push_back(ftell(fp));
+    std::vector<off_t> offsets;
+    offsets.push_back(ftello(fp));
     ClearText();
 
     struct stat sb;
@@ -584,7 +584,7 @@
     while (true) {
         if (show_prompt) {
             Print("--(%d%% of %d bytes)--",
-                  static_cast<int>(100 * (double(ftell(fp)) / double(sb.st_size))),
+                  static_cast<int>(100 * (double(ftello(fp)) / double(sb.st_size))),
                   static_cast<int>(sb.st_size));
             Redraw();
             while (show_prompt) {
@@ -603,7 +603,7 @@
                     if (feof(fp)) {
                         return;
                     }
-                    offsets.push_back(ftell(fp));
+                    offsets.push_back(ftello(fp));
                 }
             }
             ClearText();