50dff52c99
* include/linux/x86/syscall.h: Move SYS_ defines from tcc.c. * include/linux/x86_64/syscall.h: Add SYS_ defines for tcc. * lib/x86-mes-gcc/setjmp.c: Rename from lib/libc+tcc-gcc.c * lib/x86-mes/setjmp.c: Rename from lib/libc+tcc-mes.c * lib/linux/tcc.c: Update.
1097 lines
22 KiB
C
1097 lines
22 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
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* GNU Mes --- Maxwell Equations of Software
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* Copyright © 2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
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* Copyright © 2018 Jeremiah Orians <jeremiah@pdp10.guru>
|
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* Copyright (C) 2018 Han-Wen Nienhuys <hanwen@xs4all.nl>
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*
|
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* This file is part of GNU Mes.
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*
|
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* GNU Mes is free software; you can redistribute it and/or modify it
|
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* under the terms of the GNU General Public License as published by
|
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* the Free Software Foundation; either version 3 of the License, or (at
|
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* your option) any later version.
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*
|
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* GNU Mes is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
|
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <limits.h>
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#include <setjmp.h>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
|
|
#include <time.h>
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#include <signal.h>
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#include <sys/mman.h>
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#include <sys/stat.h>
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#include <sys/time.h>
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#include <unistd.h>
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|
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#include <libc.c>
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|
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#if __GNU__
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#include <hurd/tcc.c>
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#elif __linux__
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#include <linux/tcc.c>
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#else
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#error both __GNU__ and _linux__ are undefined, choose one
|
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#endif
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|
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#if __MESC__
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#include <x86-mes/setjmp.c>
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#elif __i386__
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#include <x86-mes-gcc/setjmp.c>
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#elif __x86_64__
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#include <x86_64-mes-gcc/setjmp.c>
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#else
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#error arch not supported
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#endif
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|
|
|
char *
|
|
search_path (char const *file_name)
|
|
{
|
|
static char buf[256];
|
|
char *path = getenv ("PATH");
|
|
if (__mes_debug ())
|
|
{
|
|
eputs ("\n search-path: "); eputs (file_name); eputs ("\n");
|
|
}
|
|
while (*path)
|
|
{
|
|
char *end = strchr (path, ':');
|
|
if (!end)
|
|
end = strchr (path, '\0');
|
|
strncpy (buf, path, end - path);
|
|
buf[end - path] = 0;
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|
if (__mes_debug ())
|
|
{
|
|
eputs (" dir: "); eputs (buf); eputs ("\n");
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|
}
|
|
if (buf[end - path] != '/')
|
|
strcat (buf, "/");
|
|
strcat (buf, file_name);
|
|
if (!access (buf, X_OK))
|
|
{
|
|
if (__mes_debug ())
|
|
{
|
|
eputs (" found: "); eputs (buf); eputs ("\n");
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}
|
|
return buf;
|
|
}
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path = end + 1;
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}
|
|
return 0;
|
|
}
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|
|
|
int
|
|
execvp (char const *file_name, char *const argv[])
|
|
{
|
|
if (file_name[0] != '/')
|
|
file_name = search_path (file_name);
|
|
if (!file_name)
|
|
{
|
|
errno = ENOENT;
|
|
return -1;
|
|
}
|
|
if (__mes_debug ())
|
|
{
|
|
eputs (" EXEC: "); eputs (file_name); eputs ("\n");
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|
int i = 0;
|
|
while (argv[i])
|
|
{
|
|
eputs (" arg["); eputs (itoa (i)); eputs ("]: "); eputs (argv[i]); eputs ("\n");
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i++;
|
|
}
|
|
}
|
|
return execve (file_name, argv, environ);
|
|
}
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|
|
|
int
|
|
fclose (FILE *stream)
|
|
{
|
|
int fd = (int)stream;
|
|
return close (fd);
|
|
}
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|
|
|
FILE *
|
|
fdopen (int fd, char const *mode)
|
|
{
|
|
return (FILE*)fd;
|
|
}
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|
|
|
int
|
|
ferror (FILE *stream)
|
|
{
|
|
int fd = (int)stream;
|
|
if (fd == -1) return -1;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
fflush (FILE *stream)
|
|
{
|
|
fsync ((int)stream);
|
|
}
|
|
|
|
int
|
|
fprintf (FILE *stream, char const *format, ...)
|
|
{
|
|
va_list ap;
|
|
va_start (ap, format);
|
|
int r = vfprintf (stream, format, ap);
|
|
va_end (ap);
|
|
return r;
|
|
}
|
|
|
|
int
|
|
_fungetc_p (FILE *stream)
|
|
{
|
|
return _fdungetc_p ((int)stream);
|
|
}
|
|
|
|
size_t
|
|
fread (void *data, size_t size, size_t count, FILE *stream)
|
|
{
|
|
if (! size || !count)
|
|
return 0;
|
|
|
|
size_t todo = size * count;
|
|
char *buf = (char*)data;
|
|
|
|
int bytes = 0;
|
|
while (_fungetc_p (stream) && todo-- && ++bytes)
|
|
*buf++ = fgetc (stream);
|
|
if (todo)
|
|
{
|
|
int r = read ((int)stream, buf, todo);
|
|
if (r < 0 && !bytes)
|
|
bytes = r;
|
|
else
|
|
bytes += r;
|
|
}
|
|
|
|
if (__mes_debug ())
|
|
{
|
|
eputs ("fread fd="); eputs (itoa ((int)stream));
|
|
eputs (" bytes="); eputs (itoa (bytes)); eputs ("\n");
|
|
static char buf[4096];
|
|
if (bytes > 0 && bytes < sizeof (buf))
|
|
{
|
|
strncpy (buf, data, bytes);
|
|
buf[bytes] = 0;
|
|
eputs ("fread buf="); eputs (buf); eputs ("\n");
|
|
}
|
|
}
|
|
|
|
if (bytes > 0)
|
|
return bytes/size;
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|
|
|
return 0;
|
|
}
|
|
|
|
size_t
|
|
fwrite (void const *data, size_t size, size_t count, FILE *stream)
|
|
{
|
|
if (__mes_debug () > 1)
|
|
{
|
|
eputs ("fwrite "); eputs (itoa ((int)stream));
|
|
eputs (" "); eputs (itoa (size)); eputs ("\n");
|
|
}
|
|
|
|
if (! size || !count)
|
|
return 0;
|
|
int bytes = write ((int)stream, data, size * count);
|
|
|
|
if (__mes_debug () > 2)
|
|
{
|
|
eputs (" => "); eputs (itoa (bytes)); eputs ("\n");
|
|
}
|
|
|
|
if (bytes > 0)
|
|
return bytes/size;
|
|
return 0;
|
|
}
|
|
|
|
long
|
|
ftell (FILE *stream)
|
|
{
|
|
return lseek ((int)stream, 0, SEEK_CUR);
|
|
}
|
|
|
|
FILE*
|
|
fopen (char const *file_name, char const *opentype)
|
|
{
|
|
if (__mes_debug ())
|
|
{
|
|
eputs ("fopen "); eputs (file_name);
|
|
eputs (" "); eputs (opentype); eputs ("\n");
|
|
}
|
|
|
|
int fd;
|
|
int mode = 0600;
|
|
if ((opentype[0] == 'a' || !strcmp (opentype, "r+"))
|
|
&& !access (file_name, O_RDONLY))
|
|
{
|
|
int flags = O_RDWR;
|
|
if (opentype[0] == 'a')
|
|
flags |= O_APPEND;
|
|
fd = open (file_name, flags, mode);
|
|
}
|
|
else if (opentype[0] == 'w' || opentype[0] == 'a' || !strcmp (opentype, "r+"))
|
|
{
|
|
char *plus_p = strchr (opentype, '+');
|
|
int flags = plus_p ? O_RDWR | O_CREAT : O_WRONLY | O_CREAT | O_TRUNC;
|
|
fd = open (file_name, flags, mode);
|
|
}
|
|
else
|
|
fd = open (file_name, 0, 0);
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|
|
|
if (__mes_debug ())
|
|
{
|
|
eputs (" => fd="); eputs (itoa (fd)); eputs ("\n");
|
|
}
|
|
|
|
if (!fd)
|
|
{
|
|
eputs (" ***MES LIB C*** fopen of stdin: signal me in band\n");
|
|
exit (1);
|
|
}
|
|
if (fd < 0)
|
|
fd = 0;
|
|
return (FILE*)fd;
|
|
}
|
|
|
|
int
|
|
fseek (FILE *stream, long offset, int whence)
|
|
{
|
|
int pos = lseek ((int)stream, offset, whence);
|
|
if (__mes_debug ())
|
|
{
|
|
eputs ("fread fd="); eputs (itoa ((int)stream));
|
|
eputs (" =>"); eputs (itoa (pos)); eputs ("\n");
|
|
}
|
|
if (pos >= 0)
|
|
return 0;
|
|
return -1;
|
|
}
|
|
|
|
int
|
|
gettimeofday (struct timeval *tv, struct timezone *tz)
|
|
{
|
|
static int stub = 0;
|
|
if (__mes_debug () && !stub)
|
|
eputs ("gettimeofday stub\n");
|
|
stub = 1;
|
|
errno = 0;
|
|
return 0;
|
|
}
|
|
|
|
double
|
|
ldexp (double x, int exp)
|
|
{
|
|
static int stub = 0;
|
|
if (__mes_debug () && !stub)
|
|
eputs ("ldexp stub\n");
|
|
stub = 1;
|
|
return 0;
|
|
}
|
|
|
|
struct tm *
|
|
localtime (time_t const *timep)
|
|
{
|
|
static int stub = 0;
|
|
if (__mes_debug () && !stub)
|
|
eputs ("localtime stub\n");
|
|
stub = 1;
|
|
errno = 0;
|
|
return 0;
|
|
}
|
|
|
|
void *
|
|
memmove (void *dest, void const *src, size_t n)
|
|
{
|
|
if (dest < src)
|
|
return memcpy (dest, src, n);
|
|
char *p = dest + n;
|
|
char const *q = src +n;
|
|
while (n--)
|
|
*--p = *--q;
|
|
return dest;
|
|
}
|
|
|
|
void *
|
|
memset (void *s, int c, size_t n)
|
|
{
|
|
char *p = s;
|
|
while (n--) *p++ = c;
|
|
return s;
|
|
}
|
|
|
|
int
|
|
memcmp (void const *s1, void const *s2, size_t size)
|
|
{
|
|
if (!size)
|
|
return 0;
|
|
char *a = s1;
|
|
char *b = s2;
|
|
while (*a == *b && --size)
|
|
{
|
|
a++;
|
|
b++;
|
|
}
|
|
return *a - *b;
|
|
}
|
|
|
|
int
|
|
mprotect (void *addr, size_t len, int prot)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
qswap (void *a, void *b, size_t size)
|
|
{
|
|
char *buf[8];
|
|
memcpy (buf, a, size);
|
|
memcpy (a, b, size);
|
|
memcpy (b, buf, size);
|
|
}
|
|
|
|
size_t
|
|
qpart (void *base, size_t count, size_t size, int (*compare)(void const *, void const *))
|
|
{
|
|
void* p = base + count*size;
|
|
size_t i = 0;
|
|
for (size_t j = 0; j < count; j++)
|
|
{
|
|
if (compare (base+j*size, p) < 0)
|
|
{
|
|
qswap (base+i*size, base+j*size, size);
|
|
i++;
|
|
}
|
|
}
|
|
if (compare (base+count*size, base+i*size) < 0)
|
|
qswap (base+i*size, base+count*size, size);
|
|
return i;
|
|
}
|
|
|
|
void
|
|
qsort (void *base, size_t count, size_t size, int (*compare)(void const *, void const *))
|
|
{
|
|
if (count > 1)
|
|
{
|
|
int p = qpart (base, count-1, size, compare);
|
|
qsort (base, p, size, compare);
|
|
qsort (base+p*size, count-p, size, compare);
|
|
}
|
|
}
|
|
|
|
int
|
|
remove (char const *file_name)
|
|
{
|
|
struct stat buf;
|
|
if (stat (file_name, &buf) < 0)
|
|
return -1;
|
|
if (S_ISDIR (buf.st_mode))
|
|
return rmdir (file_name);
|
|
return unlink (file_name);
|
|
}
|
|
|
|
int
|
|
sigaction (int signum, struct sigaction const *act, struct sigaction *oldact)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
sigemptyset (sigset_t *set)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
snprintf(char *str, size_t size, char const *format, ...)
|
|
{
|
|
va_list ap;
|
|
va_start (ap, format);
|
|
int r = vsprintf (str, format, ap);
|
|
va_end (ap);
|
|
return r;
|
|
}
|
|
|
|
int
|
|
sscanf (char const *str, const char *template, ...)
|
|
{
|
|
va_list ap;
|
|
va_start (ap, template);
|
|
int r = vsscanf (str, template, ap);
|
|
va_end (ap);
|
|
return r;
|
|
}
|
|
|
|
char *
|
|
strcat (char *to, char const *from)
|
|
{
|
|
char *p = strchr (to, '\0');
|
|
while (*from)
|
|
*p++ = *from++;
|
|
*p = 0;
|
|
return to;
|
|
}
|
|
|
|
char *
|
|
strchr (char const *s, int c)
|
|
{
|
|
char const *p = s;
|
|
while (*p || !c)
|
|
{
|
|
if (c == *p)
|
|
return p;
|
|
p++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
char *
|
|
strncpy (char *to, char const *from, size_t size)
|
|
{
|
|
if (size == 0)
|
|
return to;
|
|
char *p = to;
|
|
while (*from && size--)
|
|
*p++ = *from++;
|
|
if (*from)
|
|
size++;
|
|
while (size--)
|
|
*p++ = 0;
|
|
return to;
|
|
}
|
|
|
|
char *
|
|
strrchr (char const *s, int c)
|
|
{
|
|
int n = strlen (s);
|
|
if (!n)
|
|
return 0;
|
|
char const *p = s + n;
|
|
if (!*p && !c)
|
|
return p;
|
|
p--;
|
|
while (n-- && (*p || !c))
|
|
{
|
|
if (c == *p)
|
|
return p;
|
|
p--;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/** locate a substring. #memmem# finds the first occurrence of
|
|
#needle# in #haystack#. This is not ANSI-C.
|
|
|
|
The prototype is not in accordance with the Linux Programmer's
|
|
Manual v1.15, but it is with /usr/include/string.h */
|
|
|
|
unsigned char *
|
|
_memmem (unsigned char const *haystack, int haystack_len,
|
|
unsigned char const *needle, int needle_len)
|
|
{
|
|
unsigned char const *end_haystack = haystack + haystack_len - needle_len + 1;
|
|
unsigned char const *end_needle = needle + needle_len;
|
|
|
|
/* Ahhh ... Some minimal lowlevel stuff. This *is* nice; Varation
|
|
is the spice of life */
|
|
while (haystack < end_haystack)
|
|
{
|
|
unsigned char const *subneedle = needle;
|
|
unsigned char const *subhaystack = haystack;
|
|
while (subneedle < end_needle)
|
|
if (*subneedle++ != *subhaystack++)
|
|
goto next;
|
|
|
|
/* Completed the needle. Gotcha. */
|
|
return (unsigned char *) haystack;
|
|
next:
|
|
haystack++;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
void *
|
|
memmem (void const *haystack, int haystack_len,
|
|
void const *needle, int needle_len)
|
|
{
|
|
unsigned char const *haystack_byte_c = (unsigned char const *)haystack;
|
|
unsigned char const *needle_byte_c = (unsigned char const *)needle;
|
|
return _memmem (haystack_byte_c, haystack_len, needle_byte_c, needle_len);
|
|
}
|
|
|
|
char *
|
|
strstr (char const *haystack, char const *needle)
|
|
{
|
|
return memmem (haystack, strlen (haystack), needle, strlen (needle));
|
|
}
|
|
|
|
double
|
|
strtod (char const *string, char **tailptr)
|
|
{
|
|
static int stub = 0;
|
|
if (__mes_debug () && !stub)
|
|
eputs ("strtod stub\n");
|
|
stub = 1;
|
|
return 0;
|
|
}
|
|
|
|
float
|
|
strtof (char const *string, char **tailptr)
|
|
{
|
|
return strtod (string, tailptr);
|
|
}
|
|
|
|
long double
|
|
strtold (char const *string, char **tailptr)
|
|
{
|
|
return strtod (string, tailptr);
|
|
}
|
|
|
|
long
|
|
strtol (char const *string, char **tailptr, int base)
|
|
{
|
|
if (!strncmp (string, "0x", 2))
|
|
{
|
|
string += 2;
|
|
base = 16;
|
|
}
|
|
if (tailptr)
|
|
{
|
|
*tailptr = string;
|
|
return abtoi (tailptr, base);
|
|
}
|
|
char **p = &string;
|
|
return abtoi (p, base);
|
|
}
|
|
|
|
long long int
|
|
strtoll (char const *string, char **tailptr, int base)
|
|
{
|
|
return strtol (string, tailptr, base);
|
|
}
|
|
|
|
unsigned long
|
|
strtoul (char const *string, char **tailptr, int base)
|
|
{
|
|
return strtol (string, tailptr, base);
|
|
}
|
|
|
|
unsigned long long
|
|
strtoull (char const *string, char **tailptr, int base)
|
|
{
|
|
return strtol (string, tailptr, base);
|
|
}
|
|
|
|
time_t
|
|
time (time_t *tloc)
|
|
{
|
|
static int stub = 0;
|
|
if (__mes_debug () && !stub)
|
|
eputs ("time stub\n");
|
|
stub = 1;
|
|
errno = 0;
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
vsnprintf (char *str, size_t size, char const *format, va_list ap)
|
|
{
|
|
return vsprintf (str, format, ap);
|
|
}
|
|
|
|
void *
|
|
calloc (size_t nmemb, size_t size)
|
|
{
|
|
size_t count = nmemb * size;
|
|
void *p = malloc (count);
|
|
memset (p, 0, count);
|
|
return p;
|
|
}
|
|
|
|
int
|
|
islower (int c)
|
|
{
|
|
return c >= 'a' && c <= 'z';
|
|
}
|
|
|
|
int
|
|
isupper (int c)
|
|
{
|
|
return c >= 'A' && c <= 'Z';
|
|
}
|
|
|
|
int
|
|
tolower (int c)
|
|
{
|
|
if (isupper (c))
|
|
return c + ('a' - 'A');
|
|
return c;
|
|
}
|
|
|
|
int
|
|
toupper (int c)
|
|
{
|
|
if (islower (c))
|
|
return c - ('a' - 'A');
|
|
return c;
|
|
}
|
|
|
|
char *
|
|
strlwr (char *string)
|
|
{
|
|
char *p = string;
|
|
while (*p)
|
|
{
|
|
*p = tolower (*p);
|
|
p++;
|
|
}
|
|
return string;
|
|
}
|
|
|
|
char *
|
|
strupr (char *string)
|
|
{
|
|
char *p = string;
|
|
while (*p)
|
|
{
|
|
*p = toupper (*p);
|
|
p++;
|
|
}
|
|
return string;
|
|
}
|
|
|
|
int
|
|
vfprintf (FILE* f, char const* format, va_list ap)
|
|
{
|
|
int fd = (int)f;
|
|
char const *p = format;
|
|
int count = 0;
|
|
while (*p)
|
|
if (*p != '%')
|
|
{
|
|
count++;
|
|
fputc (*p++, fd);
|
|
}
|
|
else
|
|
{
|
|
p++;
|
|
char c = *p;
|
|
int left_p = 0;
|
|
int precision = -1;
|
|
int width = -1;
|
|
if (c == '-')
|
|
{
|
|
left_p = 1;
|
|
c = *++p;
|
|
}
|
|
char pad = ' ';
|
|
if (c == '0')
|
|
{
|
|
pad = c;
|
|
c = *p++;
|
|
}
|
|
if (c >= '0' && c <= '9')
|
|
{
|
|
width = abtoi (&p, 10);
|
|
c = *p;
|
|
}
|
|
else if (c == '*')
|
|
{
|
|
width = va_arg (ap, int);
|
|
c = *++p;
|
|
}
|
|
if (c == '.')
|
|
{
|
|
c = *++p;
|
|
if (c >= '0' && c <= '9')
|
|
{
|
|
precision = abtoi (&p, 10);
|
|
c = *p;
|
|
}
|
|
else if (c == '*')
|
|
{
|
|
precision = va_arg (ap, int);
|
|
c = *++p;
|
|
}
|
|
}
|
|
if (c == 'l')
|
|
c = *++p;
|
|
if (c == 'l')
|
|
{
|
|
eputs ("vfprintf: skipping second: l\n");
|
|
c = *++p;
|
|
}
|
|
switch (c)
|
|
{
|
|
case '%': {fputc (*p, fd); count++; break;}
|
|
case 'c': {char c; c = va_arg (ap, int); fputc (c, fd); break;}
|
|
case 'd':
|
|
case 'i':
|
|
case 'o':
|
|
case 'u':
|
|
case 'x':
|
|
case 'X':
|
|
{
|
|
int d = va_arg (ap, int);
|
|
int base = c == 'o' ? 8
|
|
: c == 'x' || c == 'X' ? 16
|
|
: 10;
|
|
char const *s = number_to_ascii (d, base, c != 'u' && c != 'x' && c != 'X');
|
|
if (c == 'X')
|
|
strupr (s);
|
|
int length = strlen (s);
|
|
if (precision == -1)
|
|
precision = length;
|
|
if (!left_p)
|
|
{
|
|
while (width-- > precision)
|
|
{
|
|
fputc (pad, f);
|
|
count++;
|
|
}
|
|
while (precision > length)
|
|
{
|
|
fputc ('0', f);
|
|
precision--;
|
|
width--;
|
|
count++;
|
|
}
|
|
}
|
|
while (*s)
|
|
{
|
|
if (precision-- <= 0)
|
|
break;
|
|
width--;
|
|
fputc (*s++, f);
|
|
count++;
|
|
}
|
|
while (width > 0)
|
|
{
|
|
width--;
|
|
fputc (pad, f);
|
|
count++;
|
|
}
|
|
break;
|
|
}
|
|
case 's':
|
|
{
|
|
char *s = va_arg (ap, char *);
|
|
int length = strlen (s);
|
|
if (precision == -1)
|
|
precision = length;
|
|
if (!left_p)
|
|
{
|
|
while (width-- > precision)
|
|
{
|
|
fputc (pad, f);
|
|
count++;
|
|
}
|
|
while (precision > length)
|
|
{
|
|
fputc (' ', f);
|
|
precision--;
|
|
width--;
|
|
count++;
|
|
}
|
|
}
|
|
while (*s)
|
|
{
|
|
if (precision-- <= 0)
|
|
break;
|
|
width--;
|
|
fputc (*s++, f);
|
|
count++;
|
|
}
|
|
while (width > 0)
|
|
{
|
|
width--;
|
|
fputc (pad, f);
|
|
count++;
|
|
}
|
|
break;
|
|
}
|
|
case 'n':
|
|
{
|
|
int *n = va_arg (ap, int *);
|
|
*n = count;
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
eputs ("vfprintf: not supported: %:");
|
|
eputc (c);
|
|
eputs ("\n");
|
|
p++;
|
|
}
|
|
}
|
|
p++;
|
|
}
|
|
va_end (ap);
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
vprintf (char const* format, va_list ap)
|
|
{
|
|
return vfprintf (STDOUT, format, ap);
|
|
}
|
|
|
|
int
|
|
vsscanf (char const *s, char const *template, va_list ap)
|
|
{
|
|
char const *p = s;
|
|
char const *t = template;
|
|
int count = 0;
|
|
while (*t && *p)
|
|
if (*t != '%')
|
|
{
|
|
t++;
|
|
p++;
|
|
}
|
|
else
|
|
{
|
|
t++;
|
|
char c = *t;
|
|
if (c == 'l')
|
|
c = *++t;
|
|
switch (c)
|
|
{
|
|
case '%': {p++; break;}
|
|
case 'c':
|
|
{
|
|
char *c = va_arg (ap, char*);
|
|
*c = *p++;
|
|
count++;
|
|
break;
|
|
}
|
|
case 'd':
|
|
case 'i':
|
|
case 'u':
|
|
{
|
|
int *d = va_arg (ap, int*);
|
|
*d = abtoi (&p, 10);
|
|
count++;
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
eputs ("vsscanf: not supported: %:");
|
|
eputc (c);
|
|
eputs ("\n");
|
|
t++;
|
|
p++;
|
|
}
|
|
}
|
|
t++;
|
|
}
|
|
va_end (ap);
|
|
return count;
|
|
}
|
|
|
|
int
|
|
vsprintf (char *str, char const* format, va_list ap)
|
|
{
|
|
char const *p = format;
|
|
int count = 0;
|
|
while (*p)
|
|
if (*p != '%')
|
|
{
|
|
*str++ = *p++;
|
|
count++;
|
|
}
|
|
else
|
|
{
|
|
p++;
|
|
char c = *p;
|
|
int left_p = 0;
|
|
int precision = -1;
|
|
int width = -1;
|
|
if (c == '-')
|
|
{
|
|
left_p = 1;
|
|
c = *++p;
|
|
}
|
|
char pad = ' ';
|
|
if (c == '0')
|
|
{
|
|
pad = c;
|
|
c = *p++;
|
|
}
|
|
if (c >= '0' && c <= '9')
|
|
{
|
|
width = abtoi (&p, 10);
|
|
c = *p;
|
|
}
|
|
else if (c == '*')
|
|
{
|
|
width = va_arg (ap, int);
|
|
c = *++p;
|
|
}
|
|
if (c == '.')
|
|
{
|
|
c = *++p;
|
|
if (c >= '0' && c <= '9')
|
|
{
|
|
precision = abtoi (&p, 10);
|
|
c = *p;
|
|
}
|
|
else if (c == '*')
|
|
{
|
|
precision = va_arg (ap, int);
|
|
c = *++p;
|
|
}
|
|
}
|
|
if (c == 'l')
|
|
c = *++p;
|
|
if (c == 'l')
|
|
c = *++p;
|
|
if (c == 'l')
|
|
{
|
|
eputs ("vfprintf: skipping second: l\n");
|
|
c = *++p;
|
|
}
|
|
switch (c)
|
|
{
|
|
case '%': {*str++ = *p; count++; break;}
|
|
case 'c': {c = va_arg (ap, int); *str++ = c; count++; break;}
|
|
case 'd':
|
|
case 'i':
|
|
case 'o':
|
|
case 'u':
|
|
case 'x':
|
|
case 'X':
|
|
{
|
|
int d = va_arg (ap, int);
|
|
int base = c == 'o' ? 8
|
|
: c == 'x' || c == 'X' ? 16
|
|
: 10;
|
|
char const *s = number_to_ascii (d, base, c != 'u' && c != 'x' && c != 'X');
|
|
if (c == 'X')
|
|
strupr (s);
|
|
int length = strlen (s);
|
|
if (precision == -1)
|
|
precision = length;
|
|
if (!left_p)
|
|
{
|
|
while (width-- > precision)
|
|
{
|
|
*str++ = pad;
|
|
count++;
|
|
}
|
|
while (precision > length)
|
|
{
|
|
*str++ = '0';
|
|
precision--;
|
|
width--;
|
|
count++;
|
|
}
|
|
}
|
|
while (*s)
|
|
{
|
|
if (precision-- <= 0)
|
|
break;
|
|
width--;
|
|
*str++ = *s++;
|
|
count++;
|
|
}
|
|
while (width > 0)
|
|
{
|
|
width--;
|
|
*str++ = pad;
|
|
count++;
|
|
}
|
|
break;
|
|
}
|
|
case 's':
|
|
{
|
|
char *s = va_arg (ap, char *);
|
|
int length = strlen (s);
|
|
if (precision == -1)
|
|
precision = length;
|
|
if (!left_p)
|
|
{
|
|
while (width-- > precision)
|
|
{
|
|
*str++ = pad;
|
|
count++;
|
|
}
|
|
while (width > length)
|
|
{
|
|
*str++ = ' ';
|
|
precision--;
|
|
width--;
|
|
count++;
|
|
}
|
|
}
|
|
while (*s)
|
|
{
|
|
if (precision-- <= 0)
|
|
break;
|
|
width--;
|
|
*str++ = *s++;
|
|
count++;
|
|
}
|
|
while (width > 0)
|
|
{
|
|
width--;
|
|
*str++ = pad;
|
|
count++;
|
|
}
|
|
break;
|
|
}
|
|
case 'n':
|
|
{
|
|
int *n = va_arg (ap, int *);
|
|
*n = count;
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
eputs ("vsprintf: not supported: %:");
|
|
eputc (c);
|
|
eputs ("\n");
|
|
p++;
|
|
}
|
|
}
|
|
p++;
|
|
}
|
|
va_end (ap);
|
|
*str = 0;
|
|
return strlen (str);
|
|
}
|
|
|
|
int
|
|
sprintf (char *str, char const* format, ...)
|
|
{
|
|
va_list ap;
|
|
va_start (ap, format);
|
|
int r = vsprintf (str, format, ap);
|
|
va_end (ap);
|
|
return r;
|
|
}
|
|
|
|
int
|
|
printf (char const* format, ...)
|
|
{
|
|
va_list ap;
|
|
va_start (ap, format);
|
|
int r = vprintf (format, ap);
|
|
va_end (ap);
|
|
return r;
|
|
}
|