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comparison dbutil.c @ 1764:a339b1c4b9f2

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Print ascii in printhex too
author Matt Johnston <matt@ucc.asn.au>
date Mon, 26 Oct 2020 22:51:44 +0800
parents dfbe947bdf0d
children 870f6e386a0b
comparison
equal deleted inserted replaced
1760:2406a9987810 1764:a339b1c4b9f2
383 execv(usershell, argv); 383 execv(usershell, argv);
384 } 384 }
385 385
386 #if DEBUG_TRACE 386 #if DEBUG_TRACE
387 void printhex(const char * label, const unsigned char * buf, int len) { 387 void printhex(const char * label, const unsigned char * buf, int len) {
388 388 int i, j;
389 int i;
390 389
391 fprintf(stderr, "%s\n", label); 390 fprintf(stderr, "%s\n", label);
392 for (i = 0; i < len; i++) { 391 /* for each 16 byte line */
393 fprintf(stderr, "%02x", buf[i]); 392 for (j = 0; j < len; j += 16) {
394 if (i % 16 == 15) { 393 const int linelen = MIN(16, len - j);
395 fprintf(stderr, "\n"); 394
396 } 395 /* print hex digits */
397 else if (i % 2 == 1) { 396 for (i = 0; i < 16; i++) {
398 fprintf(stderr, " "); 397 if (i < linelen) {
399 } 398 fprintf(stderr, "%02x", buf[j+i]);
400 } 399 } else {
401 fprintf(stderr, "\n"); 400 fprintf(stderr, " ");
401 }
402 // separator between pairs
403 if (i % 2 ==1) {
404 fprintf(stderr, " ");
405 }
406 }
407
408 /* print characters */
409 fprintf(stderr, " ");
410 for (i = 0; i < linelen; i++) {
411 char c = buf[j+i];
412 if (!isprint(c)) {
413 c = '.';
414 }
415 fputc(c, stderr);
416 }
417 fprintf(stderr, "\n");
418 }
402 } 419 }
403 420
404 void printmpint(const char *label, mp_int *mp) { 421 void printmpint(const char *label, mp_int *mp) {
405 buffer *buf = buf_new(1000); 422 buffer *buf = buf_new(1000);
406 buf_putmpint(buf, mp); 423 buf_putmpint(buf, mp);