1 files changed, 0 insertions, 103 deletions
diff --git a/sketchtrial.c b/sketchtrial.c
deleted file mode 100644
index 388f8ab..0000000
--- a/sketchtrial.c
+++ /dev/null
@@ -1,103 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdbool.h>
-#include <string.h>
-#include <sys/time.h>
-#include <unistd.h>
-#include <execinfo.h>
-#include <dlfcn.h>
-#include <pthread.h>
-
-static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
-static int calls_left = 9;
-static bool done = false;
-static char buf[32];
-static long days = -5000;
-
-// pointer to the original function
-int (*orig_gettimeofday) (struct timeval *restrict tp, void *restrict tzp) = NULL;
-
-void parse_bt_source(char* src, char* dst, int len) {
-    int pos = 0;
-    int state = 0;
-    for (char *c = src; *c != '\0' && pos < len-1; c++) {
-        if (!state) {
-            if (*c == ' ') {
-                state = 1;
-            }
-            continue;
-        }
-        if (state == 1) {
-            if (*c != ' ') {
-                state = 2;
-            }
-        }
-        if (state == 2) {
-            if (*c != ' ') {
-                dst[pos++] = *c;
-            } else {
-                dst[pos] = '\0';
-                break;
-            }
-        }
-    }
-}
-
-int gettimeofday(struct timeval *restrict tp, void *restrict tzp) {
-    if (!orig_gettimeofday) {
-        orig_gettimeofday = dlsym(RTLD_NEXT, "gettimeofday");
-    }
-
-    int result = orig_gettimeofday(tp, tzp);
-    if (result != 0 || done) {
-        return result;
-    }
-
-    pthread_mutex_lock(&mutex);
-    if (!calls_left) {
-        goto end;
-    }
-
-    void *callstack[128];
-    int frames = backtrace(callstack, 128);
-    char **strs = backtrace_symbols(callstack, frames);
-    int i;
-    bool call_sketch = false;
-    bool call_nsdate = false;
-
-    for (i = 0; i < frames; ++i) {
-        parse_bt_source(strs[i], buf, 32);
-        if (strstr(strs[i], "NSNotification") != NULL || !strcmp(buf, "CFNetwork")) {
-            call_sketch = false;
-            break;
-        }
-        if (!call_nsdate && strstr(strs[i], "NSDate") != NULL) {
-            call_nsdate = true;
-        }
-        if (!call_sketch && !strcmp(buf, "Sketch")) {
-            call_sketch = true;
-        }
-    }
-
-    if (call_sketch && call_nsdate) {
-        tp->tv_sec += days * 86400;
-        tp->tv_usec = tp->tv_sec * 1000000;
-        calls_left--;
-
-        printf("spoofed time on call stack:\n");
-        for (i = 0; i < frames; i++) {
-            printf("    %s\n", strs[i]);
-        }
-        printf("\n");
-    }
-
-    free(strs);
-    if (!calls_left) {
-        done = true;
-    }
-
-end:
-    pthread_mutex_unlock(&mutex);
-
-    return result;
-}