3 files changed, 36 insertions, 6 deletions
diff --git a/userland/libc/stdlib/strtol.c b/userland/libc/stdlib/strtol.c
index 30d04ec..4a1e189 100644
--- a/userland/libc/stdlib/strtol.c
+++ b/userland/libc/stdlib/strtol.c
@@ -28,8 +28,18 @@ long strtol(const char *str, char **restrict endptr, int base) {
   }
 
   if (0 == base) {
-    // FIXME
-    assert(0);
+    char prefix = *str;
+    if ('0' == prefix) {
+      str++;
+      if ('x' == tolower(*str)) {
+        str++;
+        base = 16;
+      } else {
+        base = 8;
+      }
+    } else {
+      base = 10;
+    }
   }
 
   if (2 <= base && 36 >= base) {
diff --git a/userland/libc/stdlib/strtoll.c b/userland/libc/stdlib/strtoll.c
index 486f91d..d1eacde 100644
--- a/userland/libc/stdlib/strtoll.c
+++ b/userland/libc/stdlib/strtoll.c
@@ -28,8 +28,18 @@ long long strtoll(const char *str, char **restrict endptr, int base) {
   }
 
   if (0 == base) {
-    // FIXME
-    assert(0);
+    char prefix = *str;
+    if ('0' == prefix) {
+      str++;
+      if ('x' == tolower(*str)) {
+        str++;
+        base = 16;
+      } else {
+        base = 8;
+      }
+    } else {
+      base = 10;
+    }
   }
 
   if (2 <= base && 36 >= base) {
diff --git a/userland/libc/stdlib/strtoul.c b/userland/libc/stdlib/strtoul.c
index c490aeb..f286a77 100644
--- a/userland/libc/stdlib/strtoul.c
+++ b/userland/libc/stdlib/strtoul.c
@@ -43,8 +43,18 @@ unsigned long strtoul(const char *restrict str, char **restrict endptr,
   }
 
   if (0 == base) {
-    // FIXME
-    assert(0);
+    char prefix = *str;
+    if ('0' == prefix) {
+      str++;
+      if ('x' == tolower(*str)) {
+        str++;
+        base = 16;
+      } else {
+        base = 8;
+      }
+    } else {
+      base = 10;
+    }
   }
 
   if (2 <= base && 36 >= base) {