diff --git a/apps/src/init.c b/apps/src/init.c
index 4cbf51d6..007547da 100644
--- a/apps/src/init.c
+++ b/apps/src/init.c
@@ -43,7 +43,8 @@ int main()
 {
     if (gettid() == 0) // why are we the idle task?
     {
-        __luna_abort("SHENANIGANS! init is tid 0 (which is reserved for the idle task)\n");
+        fprintf(stderr, "SHENANIGANS! init is tid 0 (which is reserved for the idle task)\n");
+        return 1;
     }
 
     printf("Welcome to Luna!\n");
diff --git a/libs/libc/include/stdio.h b/libs/libc/include/stdio.h
index 83023afb..b6386353 100644
--- a/libs/libc/include/stdio.h
+++ b/libs/libc/include/stdio.h
@@ -27,13 +27,13 @@ extern "C"
     FILE* fopen(const char*, const char*);
     int fprintf(FILE*, const char*, ...);
     size_t fread(void*, size_t, size_t, FILE*);
-    int fseek(FILE*, long, int);
-    long ftell(FILE*);
+    int fseek(FILE*, long, int); // Not implemented.
+    long ftell(FILE*);           // Not implemented.
     size_t fwrite(const void*, size_t, size_t, FILE*);
     int ferror(FILE*);
     int feof(FILE*);
     void clearerr(FILE*);
-    void setbuf(FILE*, char*);
+    void setbuf(FILE*, char*); // Not implemented.
     int vfprintf(FILE*, const char*, va_list);
     int printf(const char*, ...);
     int vprintf(const char*, va_list);
@@ -42,6 +42,10 @@ extern "C"
     int vsprintf(char*, const char*, va_list);
     int vsnprintf(char*, size_t, const char*, va_list);
     int puts(const char*);
+    int fputs(const char*, FILE*);
+    int fputc(int, FILE*);
+    int putc(int, FILE*);
+    int putchar(int);
     void perror(const char*);
 
 #ifdef __cplusplus
diff --git a/libs/libc/src/stdio.cpp b/libs/libc/src/stdio.cpp
index ab04a61c..c86e4f57 100644
--- a/libs/libc/src/stdio.cpp
+++ b/libs/libc/src/stdio.cpp
@@ -10,10 +10,31 @@ extern "C"
 {
     int puts(const char* s)
     {
-        long nwritten = fwrite(s, strlen(s), 1, stdout);
+        int nwritten = fputs(s, stdout);
         if (nwritten < 0) return -1;
-        nwritten += fwrite("\n", 1, 1, stdout);
-        return (int)nwritten;
+        if (putchar('\n') < 0) return -1;
+        return nwritten + 1;
+    }
+    int fputs(const char* s, FILE* stream)
+    {
+        int result = (int)fwrite(s, strlen(s), 1, stream);
+        if (ferror(stream)) return -1;
+        return result;
+    }
+    int fputc(int c, FILE* stream)
+    {
+        char chr = (char)c;
+        fwrite(&chr, 1, 1, stream);
+        if (ferror(stream)) { return -1; }
+        return c;
+    }
+    int putc(int c, FILE* stream)
+    {
+        return fputc(c, stream);
+    }
+    int putchar(int c)
+    {
+        return fputc(c, stdout);
     }
     void perror(const char* s)
     {