+
+ for (;;) {
+ padc = ' ';
+ width = 0;
+ while ((ch = (u_char) * fmt++) != '%' || stop) {
+ if (ch == '\0') {
+ return retval;
+ }
+ PCHAR(ch);
+ }
+ percent = fmt - 1;
+ qflag = 0; lflag = 0; ladjust = 0; sharpflag = 0; neg = 0;
+ sign = 0; dot = 0; dwidth = 0; upper = 0;
+ cflag = 0; hflag = 0; jflag = 0; tflag = 0; zflag = 0;
+reswitch: switch (ch = (u_char) * fmt++) {
+ case '.':
+ dot = 1;
+ goto reswitch;
+ case '#':
+ sharpflag = 1;
+ goto reswitch;
+ case '+':
+ sign = 1;
+ goto reswitch;
+ case '-':
+ ladjust = 1;
+ goto reswitch;
+ case '%':
+ PCHAR(ch);
+ break;
+ case '*':
+ if (!dot) {
+ width = va_arg(ap, int);
+ if (width < 0) {
+ ladjust = !ladjust;
+ width = -width;
+ }
+ } else {
+ dwidth = va_arg(ap, int);
+ }
+ goto reswitch;
+ case '0':
+ if (!dot) {
+ padc = '0';
+ goto reswitch;
+ }
+ case '1': case '2': case '3': case '4':
+ case '5': case '6': case '7': case '8': case '9':
+ for (n = 0;; ++fmt) {
+ n = n * 10 + ch - '0';
+ ch = *fmt;
+ if (ch < '0' || ch > '9') {
+ break;
+ }
+ }
+ if (dot) {
+ dwidth = n;
+ } else {
+ width = n;
+ }
+ goto reswitch;
+ case 'b':
+ num = (u_int)va_arg(ap, int);
+ p = va_arg(ap, char *);
+ for (q = ksprintn(nbuf, num, *p++, NULL, 0); *q;) {
+ PCHAR(*q--);
+ }
+
+ if (num == 0) {
+ break;
+ }
+
+ for (tmp = 0; *p;) {
+ n = *p++;
+ if (num & (1 << (n - 1))) {
+ PCHAR(tmp ? ',' : '<');
+ for (; (n = *p) > ' '; ++p) {
+ PCHAR(n);
+ }
+ tmp = 1;
+ } else {
+ for (; *p > ' '; ++p) {
+ continue;
+ }
+ }
+ }
+ if (tmp) {
+ PCHAR('>');
+ }
+ break;
+ case 'c':
+ PCHAR(va_arg(ap, int));
+ break;
+ case 'D':
+ up = va_arg(ap, u_char *);
+ p = va_arg(ap, char *);
+ if (!width) {
+ width = 16;
+ }
+ while (width--) {
+ PCHAR(hibhex2ascii(*up >> 4));
+ PCHAR(hibhex2ascii(*up & 0x0f));
+ up++;
+ if (width) {
+ for (q = p; *q; q++) {
+ PCHAR(*q);
+ }
+ }
+ }
+ break;
+ case 'd':
+ case 'i':
+ base = 10;
+ sign = 1;
+ goto handle_sign;
+ case 'h':
+ if (hflag) {
+ hflag = 0;
+ cflag = 1;
+ } else {
+ hflag = 1;
+ }
+ goto reswitch;
+ case 'j':
+ jflag = 1;
+ goto reswitch;
+ case 'l':
+ if (lflag) {
+ lflag = 0;
+ qflag = 1;
+ } else {
+ lflag = 1;
+ }
+ goto reswitch;
+ case 'n':
+ if (jflag) {
+ *(va_arg(ap, intmax_t *)) = retval;
+ } else if (qflag) {
+ *(va_arg(ap, quad_t *)) = retval;
+ } else if (lflag) {
+ *(va_arg(ap, long *)) = retval;
+ } else if (zflag) {
+ *(va_arg(ap, size_t *)) = retval;
+ } else if (hflag) {
+ *(va_arg(ap, short *)) = retval;
+ } else if (cflag) {
+ *(va_arg(ap, char *)) = retval;
+ } else {
+ *(va_arg(ap, int *)) = retval;
+ }
+ break;
+ case 'o':
+ base = 8;
+ goto handle_nosign;
+ case 'p':
+ base = 16;
+ sharpflag = (width == 0);
+ sign = 0;
+ num = (uintptr_t)va_arg(ap, void *);
+ goto number;
+ case 'q':
+ qflag = 1;
+ goto reswitch;
+ case 'r':
+ base = radix;
+ if (sign) {
+ goto handle_sign;
+ }
+ goto handle_nosign;
+ case 's':
+ p = va_arg(ap, char *);
+ if (p == NULL) {
+ p = "(null)";
+ }
+ if (!dot) {
+ n = (typeof(n))hibstrlen(p);
+ } else {
+ for (n = 0; n < dwidth && p[n]; n++) {
+ continue;
+ }
+ }
+
+ width -= n;
+
+ if (!ladjust && width > 0) {
+ while (width--) {
+ PCHAR(padc);
+ }
+ }
+ while (n--) {
+ PCHAR(*p++);
+ }
+ if (ladjust && width > 0) {
+ while (width--) {
+ PCHAR(padc);
+ }
+ }
+ break;
+ case 't':
+ tflag = 1;
+ goto reswitch;
+ case 'u':
+ base = 10;
+ goto handle_nosign;
+ case 'X':
+ upper = 1;
+ case 'x':
+ base = 16;
+ goto handle_nosign;
+ case 'y':
+ base = 16;
+ sign = 1;
+ goto handle_sign;
+ case 'z':
+ zflag = 1;
+ goto reswitch;
+handle_nosign:
+ sign = 0;
+ if (jflag) {
+ num = va_arg(ap, uintmax_t);
+ } else if (qflag) {
+ num = va_arg(ap, u_quad_t);
+ } else if (tflag) {
+ num = va_arg(ap, ptrdiff_t);
+ } else if (lflag) {
+ num = va_arg(ap, u_long);
+ } else if (zflag) {
+ num = va_arg(ap, size_t);
+ } else if (hflag) {
+ num = (u_short)va_arg(ap, int);
+ } else if (cflag) {
+ num = (u_char)va_arg(ap, int);
+ } else {
+ num = va_arg(ap, u_int);
+ }
+ goto number;
+handle_sign:
+ if (jflag) {
+ num = va_arg(ap, intmax_t);
+ } else if (qflag) {
+ num = va_arg(ap, quad_t);
+ } else if (tflag) {
+ num = va_arg(ap, ptrdiff_t);
+ } else if (lflag) {
+ num = va_arg(ap, long);
+ } else if (zflag) {
+ num = va_arg(ap, ssize_t);
+ } else if (hflag) {
+ num = (short)va_arg(ap, int);
+ } else if (cflag) {
+ num = (char)va_arg(ap, int);
+ } else {
+ num = va_arg(ap, int);
+ }
+number:
+ if (sign && (intmax_t)num < 0) {
+ neg = 1;
+ num = -(intmax_t)num;
+ }
+ p = ksprintn(nbuf, num, base, &tmp, upper);
+ if (sharpflag && num != 0) {
+ if (base == 8) {
+ tmp++;
+ } else if (base == 16) {
+ tmp += 2;
+ }
+ }
+ if (neg) {
+ tmp++;
+ }
+
+ if (!ladjust && padc != '0' && width
+ && (width -= tmp) > 0) {
+ while (width--) {
+ PCHAR(padc);
+ }
+ }
+ if (neg) {
+ PCHAR('-');
+ }
+ if (sharpflag && num != 0) {
+ if (base == 8) {
+ PCHAR('0');
+ } else if (base == 16) {
+ PCHAR('0');
+ PCHAR('x');
+ }
+ }
+ if (!ladjust && width && (width -= tmp) > 0) {
+ while (width--) {
+ PCHAR(padc);
+ }
+ }
+
+ while (*p) {
+ PCHAR(*p--);
+ }
+
+ if (ladjust && width && (width -= tmp) > 0) {
+ while (width--) {
+ PCHAR(padc);
+ }
+ }
+
+ break;
+ default:
+ while (percent < fmt) {
+ PCHAR(*percent++);
+ }
+ /*
+ * Since we ignore an formatting argument it is no
+ * longer safe to obey the remaining formatting
+ * arguments as the arguments will no longer match
+ * the format specs.
+ */
+ stop = 1;
+ break;
+ }
projects / apple / xnu.git / blobdiff