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Reduce code duplication.

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MFC after:	1 month
Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Edward Tomasz Napierala 2016-02-04 15:10:08 +00:00
parent dfa0f9c66a
commit 66d082c84b
1 changed files with 34 additions and 48 deletions
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82
bin/dd/args.c
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@ -360,6 +360,38 @@ c_conv(const void *a, const void *b)
((const struct conv *)b)->name));
}
static uintmax_t
postfix_to_mult(const char expr)
{
uintmax_t mult;
mult = 0;
switch (expr) {
case 'B':
case 'b':
mult = 512;
break;
case 'K':
case 'k':
mult = 1 << 10;
break;
case 'M':
case 'm':
mult = 1 << 20;
break;
case 'G':
case 'g':
mult = 1 << 30;
break;
case 'W':
case 'w':
mult = sizeof(int);
break;
}
return (mult);
}
/*
* Convert an expression of the following forms to a uintmax_t.
* 1) A positive decimal number.
@ -386,31 +418,7 @@ get_num(const char *val)
if (expr == val) /* No valid digits. */
errx(1, "%s: illegal numeric value", oper);
mult = 0;
switch (*expr) {
case 'B':
case 'b':
mult = 512;
break;
case 'K':
case 'k':
mult = 1 << 10;
break;
case 'M':
case 'm':
mult = 1 << 20;
break;
case 'G':
case 'g':
mult = 1 << 30;
break;
case 'W':
case 'w':
mult = sizeof(int);
break;
default:
;
}
mult = postfix_to_mult(*expr);
if (mult != 0) {
prevnum = num;
@ -460,29 +468,7 @@ get_off_t(const char *val)
if (expr == val) /* No valid digits. */
errx(1, "%s: illegal numeric value", oper);
mult = 0;
switch (*expr) {
case 'B':
case 'b':
mult = 512;
break;
case 'K':
case 'k':
mult = 1 << 10;
break;
case 'M':
case 'm':
mult = 1 << 20;
break;
case 'G':
case 'g':
mult = 1 << 30;
break;
case 'W':
case 'w':
mult = sizeof(int);
break;
}
mult = postfix_to_mult(*expr);
if (mult != 0) {
prevnum = num;