mirror of
https://github.com/fish-shell/fish-shell
synced 2024-12-27 05:13:10 +00:00
546 lines
8.3 KiB
C
546 lines
8.3 KiB
C
/** \file wutil.c
|
|
Wide character equivalents of various standard unix functions.
|
|
*/
|
|
#include "config.h"
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <unistd.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <unistd.h>
|
|
#include <errno.h>
|
|
#include <fcntl.h>
|
|
#include <wchar.h>
|
|
#include <string.h>
|
|
#include <dirent.h>
|
|
#include <stdarg.h>
|
|
#include <limits.h>
|
|
|
|
#include "util.h"
|
|
#include "common.h"
|
|
#include "wutil.h"
|
|
|
|
static char *tmp=0;
|
|
static size_t tmp_len=0;
|
|
|
|
int c = 0;
|
|
|
|
void wutil_destroy()
|
|
{
|
|
free( tmp );
|
|
tmp=0;
|
|
tmp_len=0;
|
|
debug( 3, L"wutil functions called %d times", c );
|
|
}
|
|
|
|
static char *wutil_wcs2str( const wchar_t *in )
|
|
{
|
|
c++;
|
|
|
|
size_t new_sz =MAX_UTF8_BYTES*wcslen(in)+1;
|
|
if( tmp_len < new_sz )
|
|
{
|
|
free( tmp );
|
|
tmp = malloc( new_sz );
|
|
if( !tmp )
|
|
{
|
|
die_mem();
|
|
}
|
|
tmp_len = new_sz;
|
|
}
|
|
|
|
wcstombs( tmp, in, tmp_len );
|
|
return tmp;
|
|
}
|
|
|
|
wchar_t *wgetcwd( wchar_t *buff, size_t sz )
|
|
{
|
|
char buffc[sz*MAX_UTF8_BYTES];
|
|
char *res = getcwd( buffc, sz*MAX_UTF8_BYTES );
|
|
if( !res )
|
|
return 0;
|
|
|
|
if( (size_t)-1 == mbstowcs( buff, buffc, sizeof( wchar_t ) * sz ) )
|
|
{
|
|
return 0;
|
|
}
|
|
return buff;
|
|
}
|
|
|
|
int wchdir( const wchar_t * dir )
|
|
{
|
|
char *tmp = wutil_wcs2str(dir);
|
|
return chdir( tmp );
|
|
}
|
|
|
|
FILE *wfopen(const wchar_t *path, const char *mode)
|
|
{
|
|
|
|
char *tmp =wutil_wcs2str(path);
|
|
FILE *res=0;
|
|
if( tmp )
|
|
{
|
|
res = fopen(tmp, mode);
|
|
|
|
}
|
|
return res;
|
|
}
|
|
|
|
FILE *wfreopen(const wchar_t *path, const char *mode, FILE *stream)
|
|
{
|
|
char *tmp =wutil_wcs2str(path);
|
|
FILE *res=0;
|
|
if( tmp )
|
|
{
|
|
res = freopen(tmp, mode, stream);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
|
|
|
|
int wopen(const wchar_t *pathname, int flags, ...)
|
|
{
|
|
char *tmp =wutil_wcs2str(pathname);
|
|
int res=-1;
|
|
va_list argp;
|
|
|
|
if( tmp )
|
|
{
|
|
va_start( argp, flags );
|
|
|
|
if( ! (flags & O_CREAT) )
|
|
res = open(tmp, flags);
|
|
else
|
|
res = open(tmp, flags, va_arg(argp, int) );
|
|
|
|
va_end( argp );
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
int wcreat(const wchar_t *pathname, mode_t mode)
|
|
{
|
|
char *tmp =wutil_wcs2str(pathname);
|
|
int res = -1;
|
|
if( tmp )
|
|
{
|
|
res= creat(tmp, mode);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
DIR *wopendir(const wchar_t *name)
|
|
{
|
|
char *tmp =wutil_wcs2str(name);
|
|
DIR *res = 0;
|
|
if( tmp )
|
|
{
|
|
res = opendir(tmp);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
int wstat(const wchar_t *file_name, struct stat *buf)
|
|
{
|
|
char *tmp =wutil_wcs2str(file_name);
|
|
int res = -1;
|
|
|
|
if( tmp )
|
|
{
|
|
res = stat(tmp, buf);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
int lwstat(const wchar_t *file_name, struct stat *buf)
|
|
{
|
|
char *tmp =wutil_wcs2str(file_name);
|
|
int res = -1;
|
|
|
|
if( tmp )
|
|
{
|
|
res = lstat(tmp, buf);
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
|
|
int waccess(const wchar_t *file_name, int mode)
|
|
{
|
|
char *tmp =wutil_wcs2str(file_name);
|
|
int res = -1;
|
|
if( tmp )
|
|
{
|
|
res= access(tmp, mode);
|
|
}
|
|
return res;
|
|
}
|
|
|
|
void wperror(const wchar_t *s)
|
|
{
|
|
if( s != 0 )
|
|
{
|
|
fwprintf( stderr, L"%ls: ", s );
|
|
}
|
|
fwprintf( stderr, L"%s\n", strerror( errno ) );
|
|
}
|
|
|
|
|
|
#if !HAVE_WPRINTF
|
|
/*
|
|
Here is my own implementation of *wprintf, included since NetBSD does
|
|
not provide one of it's own.
|
|
*/
|
|
|
|
/**
|
|
This function is defined to help vgwprintf when it wants to call
|
|
itself recursively
|
|
*/
|
|
static int gwprintf( void (*writer)(wchar_t),
|
|
const wchar_t *filter,
|
|
... );
|
|
|
|
|
|
/**
|
|
Generic formatting function. All other formatting functions are
|
|
secretly a wrapper around this function.
|
|
*/
|
|
static int vgwprintf( void (*writer)(wchar_t),
|
|
const wchar_t *filter,
|
|
va_list va )
|
|
{
|
|
const wchar_t *filter_org=filter;
|
|
int count=0;
|
|
|
|
for( ;*filter; filter++)
|
|
{
|
|
if(*filter == L'%')
|
|
{
|
|
int i;
|
|
int is_long=0;
|
|
int width = 0;
|
|
filter++;
|
|
int loop=1;
|
|
int precision=INT_MAX;
|
|
|
|
while( loop )
|
|
{
|
|
switch(*filter)
|
|
{
|
|
case L'l':
|
|
/* Long variable */
|
|
is_long++;
|
|
filter++;
|
|
break;
|
|
case L'*':
|
|
/* Set minimum field width */
|
|
width = va_arg( va, int );
|
|
filter++;
|
|
break;
|
|
case L'.':
|
|
/*
|
|
Set precision.
|
|
Hasn't been tested enough yet, so I don't really trust it.
|
|
*/
|
|
filter++;
|
|
if( *filter == L'*' )
|
|
{
|
|
precision = va_arg( va, int );
|
|
}
|
|
else
|
|
{
|
|
while( (*filter >= L'0') && (*filter <= L'9'))
|
|
{
|
|
precision=10*precision+(*filter - L'0');
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
loop=0;
|
|
break;
|
|
}
|
|
}
|
|
switch( *filter )
|
|
{
|
|
case L'c':
|
|
{
|
|
wchar_t c;
|
|
|
|
c = is_long?va_arg(va, wchar_t):btowc(va_arg(va, int));
|
|
if( width )
|
|
{
|
|
int i;
|
|
for( i=1; i<width; i++ )
|
|
{
|
|
writer( L' ' );
|
|
count++;
|
|
}
|
|
}
|
|
if( precision != 0 )
|
|
writer( c );
|
|
count++;
|
|
|
|
break;
|
|
}
|
|
case L's':
|
|
{
|
|
wchar_t *ss = is_long?va_arg(va, wchar_t*):str2wcs(va_arg(va, char*));
|
|
|
|
if( !ss )
|
|
return -1;
|
|
|
|
if( width )
|
|
{
|
|
int i;
|
|
for( i=wcslen(ss); i<width; i++ )
|
|
{
|
|
writer( L' ' );
|
|
count++;
|
|
}
|
|
}
|
|
|
|
wchar_t *s=ss;
|
|
int precount = count;
|
|
|
|
while( *s )
|
|
{
|
|
if( (precision <= (count-precount) ) )
|
|
break;
|
|
|
|
writer( *(s++) );
|
|
count++;
|
|
}
|
|
|
|
if( !is_long )
|
|
free( ss );
|
|
|
|
break;
|
|
}
|
|
|
|
case L'd':
|
|
case L'i':
|
|
{
|
|
char str[32];
|
|
|
|
switch( is_long )
|
|
{
|
|
case 0:
|
|
{
|
|
int d = va_arg( va, int );
|
|
snprintf( str, 32, "%.*d", precision, d );
|
|
break;
|
|
}
|
|
|
|
case 1:
|
|
{
|
|
long d = va_arg( va, long );
|
|
snprintf( str, 32, "%.*ld", precision, d );
|
|
break;
|
|
}
|
|
|
|
case 2:
|
|
{
|
|
long long d = va_arg( va, long long );
|
|
snprintf( str, 32, "%.*lld", precision, d );
|
|
break;
|
|
}
|
|
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
if( width )
|
|
{
|
|
int i;
|
|
for( i=strlen(str); i<width; i++ )
|
|
{
|
|
writer( L' ' );
|
|
count++;
|
|
}
|
|
}
|
|
|
|
int c = gwprintf( writer, L"%s", str );
|
|
if( c==-1 )
|
|
return -1;
|
|
else
|
|
count += c;
|
|
|
|
break;
|
|
}
|
|
|
|
case L'u':
|
|
{
|
|
char str[32];
|
|
|
|
|
|
switch( is_long )
|
|
{
|
|
case 0:
|
|
{
|
|
unsigned d = va_arg( va, unsigned );
|
|
snprintf( str, 32, "%d", d );
|
|
break;
|
|
}
|
|
|
|
case 1:
|
|
{
|
|
unsigned long d = va_arg( va, unsigned long );
|
|
snprintf( str, 32, "%ld", d );
|
|
break;
|
|
}
|
|
|
|
case 2:
|
|
{
|
|
unsigned long long d = va_arg( va, unsigned long long );
|
|
snprintf( str, 32, "%lld", d );
|
|
break;
|
|
}
|
|
|
|
default:
|
|
return -1;
|
|
}
|
|
|
|
if( width )
|
|
{
|
|
int i;
|
|
for( i=strlen(str); i<width; i++ )
|
|
{
|
|
writer( L' ' );
|
|
count++;
|
|
}
|
|
}
|
|
|
|
int c = gwprintf( writer, L"%s", str );
|
|
if( c==-1 )
|
|
return -1;
|
|
else
|
|
count += c;
|
|
|
|
break;
|
|
}
|
|
|
|
case L'n':
|
|
{
|
|
int *n = va_arg( va, int *);
|
|
|
|
*n = count;
|
|
break;
|
|
}
|
|
default:
|
|
debug( 0, L"Unknown switch %lc in string %ls\n", *filter, filter_org );
|
|
exit(1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
writer( *filter );
|
|
count++;
|
|
}
|
|
}
|
|
|
|
return count;
|
|
}
|
|
|
|
static int gwprintf( void (*writer)(wchar_t),
|
|
const wchar_t *filter,
|
|
... )
|
|
{
|
|
va_list va;
|
|
va_start( va, filter );
|
|
int written=vgwprintf( writer,
|
|
filter,
|
|
va );
|
|
va_end( va );
|
|
return written;
|
|
}
|
|
|
|
/**
|
|
Holds data for swprintf writer
|
|
*/
|
|
static struct
|
|
{
|
|
int count;
|
|
int max;
|
|
wchar_t *pos;
|
|
}
|
|
sw_data;
|
|
|
|
/**
|
|
Writer for swprintf
|
|
*/
|
|
static void sw_writer( wchar_t c )
|
|
{
|
|
if( sw_data.count < sw_data.max )
|
|
*(sw_data.pos++)=c;
|
|
sw_data.count++;
|
|
}
|
|
|
|
|
|
int swprintf( wchar_t *out, size_t n, const wchar_t *filter, ... )
|
|
{
|
|
va_list va;
|
|
va_start( va, filter );
|
|
sw_data.pos=out;
|
|
sw_data.max=n;
|
|
sw_data.count=0;
|
|
int written=vgwprintf( &sw_writer,
|
|
filter,
|
|
va );
|
|
if( written < n )
|
|
{
|
|
*sw_data.pos = 0;
|
|
}
|
|
else
|
|
{
|
|
written=-1;
|
|
}
|
|
|
|
va_end( va );
|
|
return written;
|
|
}
|
|
|
|
/**
|
|
Holds auxiliary data for fwprintf and wprintf writer
|
|
*/
|
|
static FILE *fw_data;
|
|
|
|
static void fw_writer( wchar_t c )
|
|
{
|
|
putw( c, fw_data );
|
|
}
|
|
|
|
/**
|
|
Writer for fwprintf and wprintf
|
|
*/
|
|
int fwprintf( FILE *f, const wchar_t *filter, ... )
|
|
{
|
|
va_list va;
|
|
va_start( va, filter );
|
|
fw_data = f;
|
|
|
|
int written=vgwprintf( &fw_writer, filter, va );
|
|
va_end( va );
|
|
return written;
|
|
}
|
|
|
|
int wprintf( const wchar_t *filter, ... )
|
|
{
|
|
va_list va;
|
|
va_start( va, filter );
|
|
fw_data = stdout;
|
|
|
|
int written=vgwprintf( &fw_writer, filter, va );
|
|
va_end( va );
|
|
return written;
|
|
}
|
|
|
|
#endif
|
|
|