X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/8169040a0ab7054502fe9bddde46c6d6021fea65..ec0872181b882afe69213c2443f074426ccaa94f:/client/util.c?ds=sidebyside

diff --git a/client/util.c b/client/util.c
index d07c915c..7e6b4074 100644
--- a/client/util.c
+++ b/client/util.c
@@ -8,10 +8,6 @@
 // utilities
 //-----------------------------------------------------------------------------
 
-#if !defined(_WIN32)
-#define _POSIX_C_SOURCE	199309L			// need nanosleep()
-#endif
-
 #include "util.h"
 
 #include <stdint.h>
@@ -22,6 +18,10 @@
 #include <time.h>
 #include "data.h"
 
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
 #define MAX_BIN_BREAK_LENGTH   (3072+384+1)
 
 #ifndef _WIN32
@@ -111,6 +111,31 @@ void FillFileNameByUID(char *fileName, uint8_t * uid, char *ext, int byteCount)
 	sprintf(fnameptr, "%s", ext); 
 }
 
+void hex_to_buffer(const uint8_t *buf, const uint8_t *hex_data, const size_t hex_len, const size_t hex_max_len, 
+	const size_t min_str_len, const size_t spaces_between, bool uppercase) {
+		
+	char *tmp = (char *)buf;
+	size_t i;
+
+	int maxLen = ( hex_len > hex_max_len) ? hex_max_len : hex_len;
+
+	for (i = 0; i < maxLen; ++i, tmp += 2 + spaces_between) {
+		sprintf(tmp, (uppercase) ? "%02X" : "%02x", (unsigned int) hex_data[i]); 
+		
+		for (int j = 0; j < spaces_between; j++)
+			sprintf(tmp + 2 + j, " ");
+	}
+	
+	i *= (2 + spaces_between);
+	int minStrLen = min_str_len > i ? min_str_len : 0;
+	if (minStrLen > hex_max_len)
+		minStrLen = hex_max_len;
+	for(; i < minStrLen; i++, tmp += 1) 
+		sprintf(tmp, " ");
+
+	return;
+}
+
 // printing and converting functions
 
 void print_hex(const uint8_t * data, const size_t len)
@@ -141,19 +166,25 @@ void print_hex_break(const uint8_t *data, const size_t len, uint8_t breaks) {
 }
 
 char *sprint_hex(const uint8_t *data, const size_t len) {
+	static char buf[1025] = {0};
 	
-	int maxLen = ( len > 1024/3) ? 1024/3 : len;
-	static char buf[1024];
-	memset(buf, 0x00, 1024);
-	char *tmp = buf;
-	size_t i;
+	hex_to_buffer((uint8_t *)buf, data, len, sizeof(buf) - 1, 0, 1, false);
 
-	for (i=0; i < maxLen; ++i, tmp += 3)
-		sprintf(tmp, "%02x ", (unsigned int) data[i]);
+	return buf;
+}
+
+char *sprint_hex_inrow_ex(const uint8_t *data, const size_t len, const size_t min_str_len) {
+	static char buf[1025] = {0};
+
+	hex_to_buffer((uint8_t *)buf, data, len, sizeof(buf) - 1, min_str_len, 0, false);
 
 	return buf;
 }
 
+char *sprint_hex_inrow(const uint8_t *data, const size_t len) {
+	return sprint_hex_inrow_ex(data, len, 0);
+}
+
 char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t breaks) {
 	// make sure we don't go beyond our char array memory
 	int max_len;
@@ -169,12 +200,12 @@ char *sprint_bin_break(const uint8_t *data, const size_t len, const uint8_t brea
 
 	size_t in_index = 0;
 	// loop through the out_index to make sure we don't go too far
-	for (size_t out_index=0; out_index < max_len-1; out_index++) {
+	for (size_t out_index=0; out_index < max_len; out_index++) {
 		// set character - (should be binary but verify it isn't more than 1 digit)
 		if (data[in_index]<10)
 			sprintf(tmp++, "%u", (unsigned int) data[in_index]);
 		// check if a line break is needed and we have room to print it in our array
-		if ( (breaks > 0) && !((in_index+1) % breaks) && (out_index+1 != max_len) ) {
+		if ( (breaks > 0) && !((in_index+1) % breaks) && (out_index+1 < max_len) ) {
 			// increment and print line break
 			out_index++;
 			sprintf(tmp++, "%s","\n");
@@ -193,13 +224,14 @@ char *sprint_hex_ascii(const uint8_t *data, const size_t len) {
 	static char buf[1024];
 	char *tmp = buf;
 	memset(buf, 0x00, 1024);
-	size_t max_len = (len > 1010) ? 1010 : len;
-
+	size_t max_len = (len > 255) ? 255 : len;
+	// max 255 bytes * 3 + 2 characters = 767 in buffer
 	sprintf(tmp, "%s| ", sprint_hex(data, max_len) );
 	
 	size_t i = 0;
 	size_t pos = (max_len * 3)+2;
-	while(i < max_len){
+	// add another 255 characters ascii = 1020 characters of buffer used
+	while(i < max_len) {
 		char c = data[i];
 		if ( (c < 32) || (c == 127))
 			c = '.';
@@ -209,7 +241,7 @@ char *sprint_hex_ascii(const uint8_t *data, const size_t len) {
 	return buf;
 }
 
-char *sprint_ascii(const uint8_t *data, const size_t len) {
+char *sprint_ascii_ex(const uint8_t *data, const size_t len, const size_t min_str_len) {
 	static char buf[1024];
 	char *tmp = buf;
 	memset(buf, 0x00, 1024);
@@ -220,9 +252,18 @@ char *sprint_ascii(const uint8_t *data, const size_t len) {
 		tmp[i] = ((c < 32) || (c == 127)) ? '.' : c;
 		++i;
 	}
+	
+	int minStrLen = min_str_len > i ? min_str_len : 0;
+	for(; i < minStrLen; ++i) 
+		tmp[i] = ' ';
+	
 	return buf;
 }
 
+char *sprint_ascii(const uint8_t *data, const size_t len) {
+	return sprint_ascii_ex(data, len, 0);
+}
+
 void num_to_bytes(uint64_t n, size_t len, uint8_t* dest)
 {
 	while (len--) {
@@ -321,7 +362,7 @@ char * printBits(size_t const size, void const * const ptr)
 
 //  -------------------------------------------------------------------------
 //  line     - param line
-//  bg, en   - symbol numbers in param line of beginning an ending parameter
+//  bg, en   - symbol numbers in param line of beginning and ending parameter
 //  paramnum - param number (from 0)
 //  -------------------------------------------------------------------------
 int param_getptr(const char *line, int *bg, int *en, int paramnum)
@@ -354,13 +395,28 @@ int param_getptr(const char *line, int *bg, int *en, int paramnum)
 }
 
 
-char param_getchar(const char *line, int paramnum)
+int param_getlength(const char *line, int paramnum)
 {
 	int bg, en;
 	
+	if (param_getptr(line, &bg, &en, paramnum)) return 0;
+
+	return en - bg + 1;
+}
+
+char param_getchar(const char *line, int paramnum) {
+	return param_getchar_indx(line, 0, paramnum);
+}
+
+char param_getchar_indx(const char *line, int indx, int paramnum) {
+	int bg, en;
+	
 	if (param_getptr(line, &bg, &en, paramnum)) return 0x00;
 
-	return line[bg];
+	if (bg + indx > en)
+		return '\0';
+	
+	return line[bg + indx];
 }
 
 uint8_t param_get8(const char *line, int paramnum)
@@ -440,7 +496,7 @@ int param_gethex(const char *line, int paramnum, uint8_t * data, int hexcnt)
 		return 1;
 
 	for(i = 0; i < hexcnt; i += 2) {
-		if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) )	return 1;
+		if (!(isxdigit((unsigned char)line[bg + i]) && isxdigit((unsigned char)line[bg + i + 1])) )	return 1;
 		
 		sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp);
 		data[i / 2] = temp & 0xff;
@@ -462,7 +518,7 @@ int param_gethex_ex(const char *line, int paramnum, uint8_t * data, int *hexcnt)
 		return 1;
 
 	for(i = 0; i < *hexcnt; i += 2) {
-		if (!(isxdigit(line[bg + i]) && isxdigit(line[bg + i + 1])) )	return 1;
+		if (!(isxdigit((unsigned char)line[bg + i]) && isxdigit((unsigned char)line[bg + i + 1])) )	return 1;
 		
 		sscanf((char[]){line[bg + i], line[bg + i + 1], 0}, "%X", &temp);
 		data[i / 2] = temp & 0xff;
@@ -470,11 +526,66 @@ int param_gethex_ex(const char *line, int paramnum, uint8_t * data, int *hexcnt)
 
 	return 0;
 }
-int param_getstr(const char *line, int paramnum, char * str)
+
+int param_gethex_to_eol(const char *line, int paramnum, uint8_t * data, int maxdatalen, int *datalen) {
+	int bg, en;
+	uint32_t temp;
+	char buf[5] = {0};
+
+	if (param_getptr(line, &bg, &en, paramnum)) return 1;
+
+	*datalen = 0;
+	
+	int indx = bg;
+	while (line[indx]) {
+		if (line[indx] == '\t' || line[indx] == ' ') {
+			indx++;
+			continue;
+		}
+		
+		if (isxdigit((unsigned char)line[indx])) {
+			buf[strlen(buf) + 1] = 0x00;
+			buf[strlen(buf)] = line[indx];
+		} else {
+			// if we have symbols other than spaces and hex
+			return 1;
+		}				
+
+		if (*datalen >= maxdatalen) {
+			// if we dont have space in buffer and have symbols to translate
+			return 2;
+		}
+
+		if (strlen(buf) >= 2) {
+			sscanf(buf, "%x", &temp);
+			data[*datalen] = (uint8_t)(temp & 0xff);
+			*buf = 0;
+			(*datalen)++;
+		}
+		
+		indx++;
+	}
+
+	if (strlen(buf) > 0) 
+		//error when not completed hex bytes
+		return 3;
+		
+	return 0;
+}
+
+int param_getstr(const char *line, int paramnum, char * str, size_t buffersize)
 {
 	int bg, en;
 
-	if (param_getptr(line, &bg, &en, paramnum)) return 0;
+	if (param_getptr(line, &bg, &en, paramnum)) {	
+		return 0;
+	}
+
+	// Prevent out of bounds errors
+	if (en - bg + 1 >= buffersize) {
+		printf("out of bounds error: want %d bytes have %zd bytes\n", en - bg + 1 + 1, buffersize);
+		return 0;
+	}
 	
 	memcpy(str, line + bg, en - bg + 1);
 	str[en - bg + 1] = 0;
@@ -492,6 +603,7 @@ https://github.com/ApertureLabsLtd/RFIDler/blob/master/firmware/Pic32/RFIDler.X/
 int hextobinarray(char *target, char *source)
 {
     int length, i, count= 0;
+    char* start = source;
     char x;
 
     length = strlen(source);
@@ -507,8 +619,10 @@ int hextobinarray(char *target, char *source)
             x -= '0';
         else if (x >= 'A' && x <= 'F')
             x -= 'A' - 10;
-        else
+        else {
+        	printf("Discovered unknown character %c %d at idx %tu of %s\n", x, x, source - start, start);
             return 0;
+        }
         // output
         for(i= 0 ; i < 4 ; ++i, ++count)
             *(target++)= (x >> (3 - i)) & 1;
@@ -613,37 +727,43 @@ void clean_ascii(unsigned char *buf, size_t len) {
   }
 }
 
+// replace \r \n to \0
+void strcleanrn(char *buf, size_t len) {
+	strcreplace(buf, len, '\n', '\0');
+	strcreplace(buf, len, '\r', '\0');
+}
 
-// Timer functions
-#if !defined (_WIN32)
-#include <errno.h>
-
-static void nsleep(uint64_t n) {
-  struct timespec timeout;
-  timeout.tv_sec = n/1000000000;
-  timeout.tv_nsec = n%1000000000;
-  while (nanosleep(&timeout, &timeout) && errno == EINTR);
+// replace char in buffer
+void strcreplace(char *buf, size_t len, char from, char to) {
+  for (size_t i = 0; i < len; i++) {
+    if (buf[i] == from)
+      buf[i] = to;
+  }
 }
 
-void msleep(uint32_t n) {
-	nsleep(1000000 * n);
+char *strmcopy(char *buf) {
+	char * str = NULL;
+	if ((str = (char*) malloc(strlen(buf) + 1)) != NULL) {
+		memset(str, 0, strlen(buf) + 1);
+		strcpy(str, buf);
+	}	
+	return str;
 }
 
-#endif // _WIN32
 
-// a milliseconds timer for performance measurement
-uint64_t msclock() {
+// determine number of logical CPU cores (use for multithreaded functions)
+extern int num_CPUs(void)
+{
 #if defined(_WIN32)
-#include <sys/types.h>
-	struct _timeb t;
-	if (_ftime_s(&t)) {
-		return 0;
-	} else {
-		return 1000 * t.time + t.millitm;
-	}
+	#include <sysinfoapi.h>
+	SYSTEM_INFO sysinfo;
+	GetSystemInfo(&sysinfo);
+	return sysinfo.dwNumberOfProcessors;
+#elif defined(__linux__) || defined(__APPLE__)
+	#include <unistd.h>
+	return sysconf(_SC_NPROCESSORS_ONLN);
 #else
-	struct timespec t;
-	clock_gettime(CLOCK_MONOTONIC, &t);
-	return (t.tv_sec * 1000 + t.tv_nsec / 1000000);
+	return 1;
 #endif
 }
+