e3e153e6ce
Add some constness to avoid some warnings. Remove use register keyword. Deal with missing/unneeded extern/prototypes. Some minor type changes/casts to avoid warnings. Reviewed by: md5
511 lines
10 KiB
C
511 lines
10 KiB
C
/*
|
|
* Copyright (c) 1989, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#if !defined(BUILTIN) && !defined(SHELL)
|
|
#ifndef lint
|
|
static char const copyright[] =
|
|
"@(#) Copyright (c) 1989, 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif /* not lint */
|
|
#endif
|
|
|
|
#ifndef lint
|
|
#if 0
|
|
static char const sccsid[] = "@(#)printf.c 8.1 (Berkeley) 7/20/93";
|
|
#endif
|
|
static const char rcsid[] =
|
|
"$FreeBSD$";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <limits.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#ifdef SHELL
|
|
#define main printfcmd
|
|
#include "bltin/bltin.h"
|
|
#include "memalloc.h"
|
|
#else
|
|
#define warnx1(a, b, c) warnx(a)
|
|
#define warnx2(a, b, c) warnx(a, b)
|
|
#define warnx3(a, b, c) warnx(a, b, c)
|
|
#endif
|
|
|
|
#ifndef BUILTIN
|
|
#include <locale.h>
|
|
#endif
|
|
|
|
#define PF(f, func) do { \
|
|
char *b = NULL; \
|
|
if (havewidth) \
|
|
if (haveprec) \
|
|
(void)asprintf(&b, f, fieldwidth, precision, func); \
|
|
else \
|
|
(void)asprintf(&b, f, fieldwidth, func); \
|
|
else if (haveprec) \
|
|
(void)asprintf(&b, f, precision, func); \
|
|
else \
|
|
(void)asprintf(&b, f, func); \
|
|
if (b) { \
|
|
(void)fputs(b, stdout); \
|
|
free(b); \
|
|
} \
|
|
} while (0)
|
|
|
|
static int asciicode(void);
|
|
static int escape(char *, int);
|
|
static int getchr(void);
|
|
static int getdouble(double *);
|
|
static int getint(int *);
|
|
static int getquads(quad_t *, u_quad_t *, int);
|
|
static const char
|
|
*getstr(void);
|
|
static char *mkquad(char *, int);
|
|
static void usage(void);
|
|
|
|
static char **gargv;
|
|
|
|
int
|
|
#ifdef BUILTIN
|
|
progprintf(int argc, char *argv[])
|
|
#else
|
|
main(int argc, char *argv[])
|
|
#endif
|
|
{
|
|
static const char *skip1, *skip2;
|
|
int ch, chopped, end, fieldwidth, haveprec, havewidth, precision, rval;
|
|
char convch, nextch, *format, *fmt, *start;
|
|
|
|
#ifndef BUILTIN
|
|
(void) setlocale(LC_NUMERIC, "");
|
|
#endif
|
|
while ((ch = getopt(argc, argv, "")) != -1)
|
|
switch (ch) {
|
|
case '?':
|
|
default:
|
|
usage();
|
|
return (1);
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
|
|
if (argc < 1) {
|
|
usage();
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Basic algorithm is to scan the format string for conversion
|
|
* specifications -- once one is found, find out if the field
|
|
* width or precision is a '*'; if it is, gather up value. Note,
|
|
* format strings are reused as necessary to use up the provided
|
|
* arguments, arguments of zero/null string are provided to use
|
|
* up the format string.
|
|
*/
|
|
skip1 = "#-+ 0";
|
|
skip2 = "0123456789";
|
|
|
|
chopped = escape(fmt = format = *argv, 1);/* backslash interpretation */
|
|
rval = 0;
|
|
gargv = ++argv;
|
|
for (;;) {
|
|
end = 0;
|
|
/* find next format specification */
|
|
next: for (start = fmt;; ++fmt) {
|
|
if (!*fmt) {
|
|
/* avoid infinite loop */
|
|
if (chopped) {
|
|
(void)printf("%s", start);
|
|
return (rval);
|
|
}
|
|
if (end == 1) {
|
|
warnx1("missing format character",
|
|
NULL, NULL);
|
|
return (1);
|
|
}
|
|
end = 1;
|
|
if (fmt > start)
|
|
(void)printf("%s", start);
|
|
if (!*gargv)
|
|
return (rval);
|
|
fmt = format;
|
|
goto next;
|
|
}
|
|
/* %% prints a % */
|
|
if (*fmt == '%') {
|
|
if (*++fmt != '%')
|
|
break;
|
|
(void)printf("%.*s", (int)(fmt - start), start);
|
|
fmt++;
|
|
goto next;
|
|
}
|
|
}
|
|
|
|
/* skip to field width */
|
|
for (; strchr(skip1, *fmt); ++fmt);
|
|
if (*fmt == '*') {
|
|
if (getint(&fieldwidth))
|
|
return (1);
|
|
havewidth = 1;
|
|
++fmt;
|
|
} else {
|
|
havewidth = 0;
|
|
|
|
/* skip to possible '.', get following precision */
|
|
for (; strchr(skip2, *fmt); ++fmt);
|
|
}
|
|
if (*fmt == '.') {
|
|
/* precision present? */
|
|
++fmt;
|
|
if (*fmt == '*') {
|
|
if (getint(&precision))
|
|
return (1);
|
|
haveprec = 1;
|
|
++fmt;
|
|
} else {
|
|
haveprec = 0;
|
|
|
|
/* skip to conversion char */
|
|
for (; strchr(skip2, *fmt); ++fmt);
|
|
}
|
|
} else
|
|
haveprec = 0;
|
|
if (!*fmt) {
|
|
warnx1("missing format character", NULL, NULL);
|
|
return (1);
|
|
}
|
|
|
|
convch = *fmt;
|
|
nextch = *++fmt;
|
|
*fmt = '\0';
|
|
switch(convch) {
|
|
case 'b': {
|
|
char *p;
|
|
int getout;
|
|
|
|
#ifdef SHELL
|
|
p = savestr(getstr());
|
|
#else
|
|
p = strdup(getstr());
|
|
#endif
|
|
if (p == NULL) {
|
|
warnx2("%s", strerror(ENOMEM), NULL);
|
|
return (1);
|
|
}
|
|
getout = escape(p, 0);
|
|
*(fmt - 1) = 's';
|
|
PF(start, p);
|
|
*(fmt - 1) = 'b';
|
|
#ifdef SHELL
|
|
ckfree(p);
|
|
#else
|
|
free(p);
|
|
#endif
|
|
if (getout)
|
|
return (rval);
|
|
break;
|
|
}
|
|
case 'c': {
|
|
char p;
|
|
|
|
p = getchr();
|
|
PF(start, p);
|
|
break;
|
|
}
|
|
case 's': {
|
|
const char *p;
|
|
|
|
p = getstr();
|
|
PF(start, p);
|
|
break;
|
|
}
|
|
case 'd': case 'i': case 'o': case 'u': case 'x': case 'X': {
|
|
char *f;
|
|
quad_t val;
|
|
u_quad_t uval;
|
|
int signedconv;
|
|
|
|
signedconv = (convch == 'd' || convch == 'i');
|
|
if ((f = mkquad(start, convch)) == NULL)
|
|
return (1);
|
|
if (getquads(&val, &uval, signedconv))
|
|
rval = 1;
|
|
if (signedconv)
|
|
PF(f, val);
|
|
else
|
|
PF(f, uval);
|
|
break;
|
|
}
|
|
case 'e': case 'E': case 'f': case 'g': case 'G': {
|
|
double p;
|
|
|
|
if (getdouble(&p))
|
|
rval = 1;
|
|
PF(start, p);
|
|
break;
|
|
}
|
|
default:
|
|
warnx2("illegal format character %c", convch, NULL);
|
|
return (1);
|
|
}
|
|
*fmt = nextch;
|
|
}
|
|
/* NOTREACHED */
|
|
}
|
|
|
|
static char *
|
|
mkquad(char *str, int ch)
|
|
{
|
|
static char *copy;
|
|
static size_t copy_size;
|
|
char *newcopy;
|
|
size_t len, newlen;
|
|
|
|
len = strlen(str) + 2;
|
|
if (len > copy_size) {
|
|
newlen = ((len + 1023) >> 10) << 10;
|
|
#ifdef SHELL
|
|
if ((newcopy = ckrealloc(copy, newlen)) == NULL)
|
|
#else
|
|
if ((newcopy = realloc(copy, newlen)) == NULL)
|
|
#endif
|
|
{
|
|
warnx2("%s", strerror(ENOMEM), NULL);
|
|
return (NULL);
|
|
}
|
|
copy = newcopy;
|
|
copy_size = newlen;
|
|
}
|
|
|
|
memmove(copy, str, len - 3);
|
|
copy[len - 3] = 'q';
|
|
copy[len - 2] = ch;
|
|
copy[len - 1] = '\0';
|
|
return (copy);
|
|
}
|
|
|
|
static int
|
|
escape(char *fmt, int percent)
|
|
{
|
|
char *store;
|
|
int value, c;
|
|
|
|
for (store = fmt; (c = *fmt); ++fmt, ++store) {
|
|
if (c != '\\') {
|
|
*store = c;
|
|
continue;
|
|
}
|
|
switch (*++fmt) {
|
|
case '\0': /* EOS, user error */
|
|
*store = '\\';
|
|
*++store = '\0';
|
|
return (0);
|
|
case '\\': /* backslash */
|
|
case '\'': /* single quote */
|
|
*store = *fmt;
|
|
break;
|
|
case 'a': /* bell/alert */
|
|
*store = '\7';
|
|
break;
|
|
case 'b': /* backspace */
|
|
*store = '\b';
|
|
break;
|
|
case 'c':
|
|
*store = '\0';
|
|
return (1);
|
|
case 'f': /* form-feed */
|
|
*store = '\f';
|
|
break;
|
|
case 'n': /* newline */
|
|
*store = '\n';
|
|
break;
|
|
case 'r': /* carriage-return */
|
|
*store = '\r';
|
|
break;
|
|
case 't': /* horizontal tab */
|
|
*store = '\t';
|
|
break;
|
|
case 'v': /* vertical tab */
|
|
*store = '\13';
|
|
break;
|
|
/* octal constant */
|
|
case '0': case '1': case '2': case '3':
|
|
case '4': case '5': case '6': case '7':
|
|
for (c = *fmt == '0' ? 4 : 3, value = 0;
|
|
c-- && *fmt >= '0' && *fmt <= '7'; ++fmt) {
|
|
value <<= 3;
|
|
value += *fmt - '0';
|
|
}
|
|
--fmt;
|
|
if (percent && value == '%') {
|
|
*store++ = '%';
|
|
*store = '%';
|
|
} else
|
|
*store = value;
|
|
break;
|
|
default:
|
|
*store = *fmt;
|
|
break;
|
|
}
|
|
}
|
|
*store = '\0';
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
getchr(void)
|
|
{
|
|
if (!*gargv)
|
|
return ('\0');
|
|
return ((int)**gargv++);
|
|
}
|
|
|
|
static const char *
|
|
getstr(void)
|
|
{
|
|
if (!*gargv)
|
|
return ("");
|
|
return (*gargv++);
|
|
}
|
|
|
|
static int
|
|
getint(int *ip)
|
|
{
|
|
quad_t val;
|
|
u_quad_t uval;
|
|
int rval;
|
|
|
|
if (getquads(&val, &uval, 1))
|
|
return (1);
|
|
rval = 0;
|
|
if (val < INT_MIN || val > INT_MAX) {
|
|
warnx3("%s: %s", *gargv, strerror(ERANGE));
|
|
rval = 1;
|
|
}
|
|
*ip = (int)val;
|
|
return (rval);
|
|
}
|
|
|
|
static int
|
|
getquads(quad_t *qp, u_quad_t *uqp, int signedconv)
|
|
{
|
|
char *ep;
|
|
int rval;
|
|
|
|
if (!*gargv) {
|
|
*qp = 0;
|
|
return (0);
|
|
}
|
|
if (**gargv == '"' || **gargv == '\'') {
|
|
if (signedconv)
|
|
*qp = asciicode();
|
|
else
|
|
*uqp = asciicode();
|
|
return (0);
|
|
}
|
|
rval = 0;
|
|
errno = 0;
|
|
if (signedconv)
|
|
*qp = strtoq(*gargv, &ep, 0);
|
|
else
|
|
*uqp = strtouq(*gargv, &ep, 0);
|
|
if (ep == *gargv) {
|
|
warnx2("%s: expected numeric value", *gargv, NULL);
|
|
rval = 1;
|
|
}
|
|
else if (*ep != '\0') {
|
|
warnx2("%s: not completely converted", *gargv, NULL);
|
|
rval = 1;
|
|
}
|
|
if (errno == ERANGE) {
|
|
warnx3("%s: %s", *gargv, strerror(ERANGE));
|
|
rval = 1;
|
|
}
|
|
++gargv;
|
|
return (rval);
|
|
}
|
|
|
|
static int
|
|
getdouble(double *dp)
|
|
{
|
|
char *ep;
|
|
int rval;
|
|
|
|
if (!*gargv)
|
|
return (0);
|
|
if (**gargv == '"' || **gargv == '\'') {
|
|
*dp = asciicode();
|
|
return (0);
|
|
}
|
|
rval = 1;
|
|
errno = 0;
|
|
*dp = strtod(*gargv, &ep);
|
|
if (ep == *gargv) {
|
|
warnx2("%s: expected numeric value", *gargv, NULL);
|
|
rval = 1;
|
|
} else if (*ep != '\0') {
|
|
warnx2("%s: not completely converted", *gargv, NULL);
|
|
rval = 1;
|
|
}
|
|
if (errno == ERANGE) {
|
|
warnx3("%s: %s", *gargv, strerror(ERANGE));
|
|
rval = 1;
|
|
}
|
|
++gargv;
|
|
return (rval);
|
|
}
|
|
|
|
static int
|
|
asciicode(void)
|
|
{
|
|
int ch;
|
|
|
|
ch = **gargv;
|
|
if (ch == '\'' || ch == '"')
|
|
ch = (*gargv)[1];
|
|
++gargv;
|
|
return (ch);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
(void)fprintf(stderr, "usage: printf format [arg ...]\n");
|
|
}
|