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hack printf()

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This commit is contained in:
John Reiser
2006-06-13 08:24:38 -07:00
parent c117491549
commit 1af5820db0
1 changed files with 9 additions and 5 deletions
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src/stub/l_lx_elf.c
+9 -5
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@@ -102,20 +102,24 @@ dprintf(char const *fmt, ...)
char buf[20]; char buf[20];
va_list va; va_start(va, fmt); va_list va; va_start(va, fmt);
ptr= &buf[0]; ptr= &buf[0];
while (0!=(c= *fmt++)) if ('%'!=c) n+= write(2, fmt-1, 1); while (0!=(c= *fmt++)) if ('%'!=c) goto literal;
else switch (c= *fmt++) { else switch (c= *fmt++) {
default: { default: {
literal:
n+= write(2, fmt-1, 1); n+= write(2, fmt-1, 1);
} break; } break;
case 0: goto done; /* early */ case 0: goto done; /* early */
case 'u': {
n+= write(2, buf, unsimal(va_arg(va, unsigned), buf, 0));
} break;
case 'd': { case 'd': {
n+= write(2, buf, decimal(va_arg(va, int), buf, 0)); n+= write(2, buf, decimal(va_arg(va, int), buf, 0));
} break; } break;
case 'p': { case 'p': /* same as 'x'; relies on sizeof(int)==sizeof(void *) */
n+= write(2, STR_0x(), 2);
} /* fall through into 'x' */
case 'x': { case 'x': {
n+= write(2, buf, heximal(va_arg(va, int), buf, 0)); buf[0] = '0';
buf[1] = 'x';
n+= write(2, buf, heximal(va_arg(va, int), buf, 2));
} break; } break;
} }
done: done: