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-rw-r--r--hex_editor_1k/Makefile2
-rw-r--r--hex_editor_1k/debug.h69
-rw-r--r--hex_editor_1k/he.c214
-rw-r--r--hex_editor_1k/zen.h29
4 files changed, 314 insertions, 0 deletions
diff --git a/hex_editor_1k/Makefile b/hex_editor_1k/Makefile
new file mode 100644
index 0000000..0c4be02
--- /dev/null
+++ b/hex_editor_1k/Makefile
@@ -0,0 +1,2 @@
+make:
+ tcc he.c -o he \ No newline at end of file
diff --git a/hex_editor_1k/debug.h b/hex_editor_1k/debug.h
new file mode 100644
index 0000000..a8bf211
--- /dev/null
+++ b/hex_editor_1k/debug.h
@@ -0,0 +1,69 @@
+#ifndef __RB_DEBUG_UTILS_H
+#define __RB_DEBUG_UTILS_H
+
+//what about kprintf?
+
+//config options
+#define PRINTF printf
+#define COLORIZE
+#define PRINT_LINENUM
+#define PRINT_FILENAME
+#define PRINT_DEBUG
+
+
+//use color
+#ifdef COLORIZE
+ #define D_COLOR "1;32m"
+ #define D_COLOR_S "\033[" D_COLOR
+ #define D_COLOR_E "\033[0m"
+ #define E_COLOR "1;31m"
+ #define E_COLOR_S "\033[" E_COLOR
+ #define E_COLOR_E "\033[0m"
+#else
+ #define D_COLOR
+ #define D_COLOR_S
+ #define D_COLOR_E
+ #define E_COLOR
+ #define E_COLOR_S
+ #define E_COLOR_E
+#endif
+
+//print debug line
+#ifdef PRINT_LINENUM
+ #define PRINT_LINE_F "LINE:%d "
+ #define PRINT_LINE_D __LINE__
+#else
+ #define PRINT_LINE_F ""
+ #define PRINT_LINE_D ""
+#endif
+
+//print
+#ifdef PRINT_FILENAME
+ #define PRINT_FILE_F "FILE:%s "
+ #define PRINT_FILE_D __FILE__
+#else
+ #define PRINT_FILE_F ""
+ #define PRINT_FILE_D ""
+#endif
+
+//print debug string
+#ifdef PRINT_DEBUG
+ #define PRINT_DEBUG_F "Debug: "
+#else
+ #define PRINT_DEBUG_F ""
+#endif
+
+#define PRINT( format, args ... ) PRINTF( D_COLOR_S PRINT_DEBUG_F \
+ PRINT_FILE_F PRINT_LINE_F format D_COLOR_E, PRINT_FILE_D, \
+ PRINT_LINE_D, ##args);
+
+#define ERROR( format, args ... ) PRINTF( E_COLOR_S PRINT_DEBUG_F \
+ PRINT_FILE_F PRINT_LINE_F format E_COLOR_E, PRINT_FILE_D, \
+ PRINT_LINE_D, ##args);
+
+#define PNL() PRINT("\n");
+
+#define ENL() ERROR("\n");
+
+
+#endif
diff --git a/hex_editor_1k/he.c b/hex_editor_1k/he.c
new file mode 100644
index 0000000..2b2b84e
--- /dev/null
+++ b/hex_editor_1k/he.c
@@ -0,0 +1,214 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+#include <string.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <stdint.h>
+
+#include "zen.h"
+#include "debug.h"
+
+long
+strtol(nptr, endptr, base)
+ const char *nptr;
+ char **endptr;
+ register int base;
+{
+ register const char *s = nptr;
+ register unsigned long acc;
+ register int c;
+ register unsigned long cutoff;
+ register int neg = 0, any, cutlim;
+
+ /*
+ * Skip white space and pick up leading +/- sign if any.
+ * If base is 0, allow 0x for hex and 0 for octal, else
+ * assume decimal; if base is already 16, allow 0x.
+ */
+ do {
+ c = *s++;
+ } while (isspace(c));
+ if (c == '-') {
+ neg = 1;
+ c = *s++;
+ } else if (c == '+')
+ c = *s++;
+ if ((base == 0 || base == 16) &&
+ c == '0' && (*s == 'x' || *s == 'X')) {
+ c = s[1];
+ s += 2;
+ base = 16;
+ } else if ((base == 0 || base == 2) &&
+ c == '0' && (*s == 'b' || *s == 'B')) {
+ c = s[1];
+ s += 2;
+ base = 2;
+ }
+ if (base == 0)
+ base = c == '0' ? 8 : 10;
+
+ /*
+ * Compute the cutoff value between legal numbers and illegal
+ * numbers. That is the largest legal value, divided by the
+ * base. An input number that is greater than this value, if
+ * followed by a legal input character, is too big. One that
+ * is equal to this value may be valid or not; the limit
+ * between valid and invalid numbers is then based on the last
+ * digit. For instance, if the range for longs is
+ * [-2147483648..2147483647] and the input base is 10,
+ * cutoff will be set to 214748364 and cutlim to either
+ * 7 (neg==0) or 8 (neg==1), meaning that if we have accumulated
+ * a value > 214748364, or equal but the next digit is > 7 (or 8),
+ * the number is too big, and we will return a range error.
+ *
+ * Set any if any `digits' consumed; make it negative to indicate
+ * overflow.
+ */
+ cutoff = neg ? -(unsigned long)LONG_MIN : LONG_MAX;
+ cutlim = cutoff % (unsigned long)base;
+ cutoff /= (unsigned long)base;
+ for (acc = 0, any = 0;; c = *s++) {
+ if (isdigit(c))
+ c -= '0';
+ else if (isalpha(c))
+ c -= isupper(c) ? 'A' - 10 : 'a' - 10;
+ else
+ break;
+ if (c >= base)
+ break;
+ if (any < 0 || acc > cutoff || acc == cutoff && c > cutlim)
+ any = -1;
+ else {
+ any = 1;
+ acc *= base;
+ acc += c;
+ }
+ }
+ if (any < 0) {
+ acc = neg ? LONG_MIN : LONG_MAX;
+// errno = ERANGE;
+ } else if (neg)
+ acc = -acc;
+ if (endptr != 0)
+ *endptr = (char *)(any ? s - 1 : nptr);
+ return (acc);
+}
+
+int main()
+{
+
+ int run=1;
+ int const max_sz=1024;
+ char cmd[max_sz];
+ int sz;
+
+ int fd_in=-1;
+
+
+ W( run )
+ {
+ write( 1, ">", 1 );
+ sz = read( 2, cmd, max_sz-1 );
+ cmd[sz]=0;
+ printf("%s",cmd);
+ S( cmd[0] )
+ {
+ //>f [MODE] [fname]
+ case 'f':
+ {
+ //check if size is more then needed
+ //>"f t" is min?
+ //add modes?
+ I(sz<3)B;
+ cmd[sz-1]=0;
+ fd_in = open(&cmd[2],O_WRONLY|O_CREAT,S_IRUSR);
+ PRINT("%s",&cmd[2]);
+ }
+ break;
+ case 'a':
+ {
+
+ }
+ break;
+ //close >c
+ case 'c':
+ {
+ PNL();
+ I(fd_in!=-1)
+ {
+ close( fd_in );
+ fd_in=-1;
+ }
+ }
+ break;
+ //file position >p [NUMBER]
+ case 'p':
+ {
+ I(fd_in==-1)B;
+ off_t p=lseek(fd_in,strtol(&cmd[2],NULL,10),SEEK_SET);
+ printf("Position: %d",p);
+ }
+ break;
+ //put bytes into file at current position >e 0x00 0xaa 0x11
+ case 'e':
+ {
+ char *iter;
+ int i=0;
+ uint8_t num;
+
+ I(fd_in==-1)B;
+ I(sz<6)B;
+
+ i = 2;
+ iter = &cmd[i];
+ while ( i<sz )
+ {
+ num = (uint8_t)strtol( iter, NULL, 16 );
+ write( fd_in, &num, 1 );
+ i += 5;
+ iter = &cmd[i];
+ }
+
+ }
+ break;
+ // dump hex >v [SIZE] how much bytes to see
+ case 'v':
+ {
+ I(fd_in==-1)B;
+ I(sz<3)B;
+ int i;
+ int dumpsz=strtol(&cmd[2],NULL,10);
+ uint8_t val;
+ for (i=0;i<dumpsz;i++)
+ {
+ read( fd_in, &val, 1);
+ printf("%02x ", val);
+ }
+ write(1,"\n",1);
+ }
+ break;
+ case 'h':
+ {
+ char s[]="Help:\n\
+f [FILE] - create file with name FILE\n\
+p [POSITION] - set postion in file\n\
+q - exit\n\
+e [0x00] ... - write value with hex fow \n\
+c - close file \n";
+ write(1,s,strlen(s) );
+ }
+ break;
+ case 'q':
+ write(1,"exiting ...\n",strlen("exiting ...\n"));
+ run = 0;
+ break;
+ default:
+ {};
+ }
+ }
+
+ return 0;
+} \ No newline at end of file
diff --git a/hex_editor_1k/zen.h b/hex_editor_1k/zen.h
new file mode 100644
index 0000000..cf7bd3f
--- /dev/null
+++ b/hex_editor_1k/zen.h
@@ -0,0 +1,29 @@
+#ifndef _ZEN_H
+#define _ZEN_H
+
+/*
+shortenings
+*/
+#define F(A,B,C) for((A);(B);(C))
+//number based for cycle
+#define FI(A,B,C,D) for(auto A=B;A<C;A+=D)
+#define W(A) while((A))
+#define D(A) do((A))
+#define I(A) if((A))
+#define E() else
+#define EI(A) else if ((A))
+#define G(A) goto(A)
+#define L(A) A:
+#define T(A) typedef A
+#define B break
+#define S(A) switch(A)
+#define C(A) case A
+#define M(A,B) main(int A, char **B)
+#define DF default
+#define TD(A,B) typedef struct A {B} A
+
+/*
+
+*/
+
+#endif \ No newline at end of file
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