Sweden-Number/tools/tools.h

424 lines
11 KiB
C

/*
* Helper functions for the Wine tools
*
* Copyright 2021 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef __WINE_TOOLS_H
#define __WINE_TOOLS_H
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <fcntl.h>
#include <time.h>
#include <errno.h>
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
#if defined(_WIN32) && !defined(__CYGWIN__)
# include <process.h>
#else
# include <sys/wait.h>
# include <unistd.h>
#endif
#if !defined(__GNUC__) && !defined(__attribute__)
#define __attribute__(x)
#endif
#ifndef max
#define max(a,b) (((a) > (b)) ? (a) : (b))
#endif
#ifndef min
#define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
#ifndef ARRAY_SIZE
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#endif
static inline void *xmalloc( size_t size )
{
void *res = malloc( size ? size : 1 );
if (res == NULL)
{
fprintf( stderr, "Virtual memory exhausted.\n" );
exit(1);
}
return res;
}
static inline void *xrealloc (void *ptr, size_t size)
{
void *res = realloc( ptr, size );
if (size && res == NULL)
{
fprintf( stderr, "Virtual memory exhausted.\n" );
exit(1);
}
return res;
}
static inline char *xstrdup( const char *str )
{
return strcpy( xmalloc( strlen(str)+1 ), str );
}
static inline int strendswith( const char *str, const char *end )
{
int l = strlen( str );
int m = strlen( end );
return l >= m && !strcmp( str + l - m, end );
}
static char *strmake( const char* fmt, ... ) __attribute__ ((__format__ (__printf__, 1, 2)));
static inline char *strmake( const char* fmt, ... )
{
int n;
size_t size = 100;
va_list ap;
for (;;)
{
char *p = xmalloc( size );
va_start( ap, fmt );
n = vsnprintf( p, size, fmt, ap );
va_end( ap );
if (n == -1) size *= 2;
else if ((size_t)n >= size) size = n + 1;
else return p;
free( p );
}
}
/* string array functions */
struct strarray
{
unsigned int count; /* strings in use */
unsigned int size; /* total allocated size */
const char **str;
};
static const struct strarray empty_strarray;
static inline void strarray_add( struct strarray *array, const char *str )
{
if (array->count == array->size)
{
if (array->size) array->size *= 2;
else array->size = 16;
array->str = xrealloc( array->str, sizeof(array->str[0]) * array->size );
}
array->str[array->count++] = str;
}
static inline void strarray_addall( struct strarray *array, struct strarray added )
{
unsigned int i;
for (i = 0; i < added.count; i++) strarray_add( array, added.str[i] );
}
static inline int strarray_exists( const struct strarray *array, const char *str )
{
unsigned int i;
for (i = 0; i < array->count; i++) if (!strcmp( array->str[i], str )) return 1;
return 0;
}
static inline void strarray_add_uniq( struct strarray *array, const char *str )
{
if (!strarray_exists( array, str )) strarray_add( array, str );
}
static inline void strarray_addall_uniq( struct strarray *array, struct strarray added )
{
unsigned int i;
for (i = 0; i < added.count; i++) strarray_add_uniq( array, added.str[i] );
}
static inline struct strarray strarray_fromstring( const char *str, const char *delim )
{
struct strarray array = empty_strarray;
char *buf = xstrdup( str );
const char *tok;
for (tok = strtok( buf, delim ); tok; tok = strtok( NULL, delim ))
strarray_add( &array, xstrdup( tok ));
free( buf );
return array;
}
static inline struct strarray strarray_frompath( const char *path )
{
if (!path) return empty_strarray;
#if defined(_WIN32) && !defined(__CYGWIN__)
return strarray_fromstring( path, ";" );
#else
return strarray_fromstring( path, ":" );
#endif
}
static inline char *strarray_tostring( struct strarray array, const char *sep )
{
char *str;
unsigned int i, len = 1 + (array.count - 1) * strlen(sep);
if (!array.count) return xstrdup("");
for (i = 0; i < array.count; i++) len += strlen( array.str[i] );
str = xmalloc( len );
strcpy( str, array.str[0] );
for (i = 1; i < array.count; i++)
{
strcat( str, sep );
strcat( str, array.str[i] );
}
return str;
}
static inline void strarray_qsort( struct strarray *array, int (*func)(const char **, const char **) )
{
if (array->count) qsort( array->str, array->count, sizeof(*array->str), (void *)func );
}
static inline const char *strarray_bsearch( const struct strarray *array, const char *str,
int (*func)(const char **, const char **) )
{
char **res = NULL;
if (array->count) res = bsearch( &str, array->str, array->count, sizeof(*array->str), (void *)func );
return res ? *res : NULL;
}
static inline void strarray_trace( struct strarray args )
{
unsigned int i;
for (i = 0; i < args.count; i++)
{
if (strpbrk( args.str[i], " \t\n\r")) printf( "\"%s\"", args.str[i] );
else printf( "%s", args.str[i] );
putchar( i < args.count - 1 ? ' ' : '\n' );
}
}
static inline int strarray_spawn( struct strarray args )
{
#if defined(_WIN32) && !defined(__CYGWIN__)
strarray_add( &args, NULL );
return _spawnvp( _P_WAIT, args.str[0], args.str );
#else
pid_t pid, wret;
int status;
if (!(pid = fork()))
{
strarray_add( &args, NULL );
execvp( args.str[0], (char **)args.str );
_exit(1);
}
if (pid == -1) return -1;
while (pid != (wret = waitpid( pid, &status, 0 )))
if (wret == -1 && errno != EINTR) break;
if (pid == wret && WIFEXITED(status)) return WEXITSTATUS(status);
return 255; /* abnormal exit with an abort or an interrupt */
#endif
}
static inline char *get_basename( const char *file )
{
const char *ret = strrchr( file, '/' );
return xstrdup( ret ? ret + 1 : file );
}
static inline char *get_basename_noext( const char *file )
{
char *ext, *ret = get_basename( file );
if ((ext = strrchr( ret, '.' ))) *ext = 0;
return ret;
}
static inline char *get_dirname( const char *file )
{
const char *end = strrchr( file, '/' );
if (!end) return xstrdup( "." );
if (end == file) end++;
return strmake( "%.*s", (int)(end - file), file );
}
static inline char *replace_extension( const char *name, const char *old_ext, const char *new_ext )
{
int name_len = strlen( name );
if (strendswith( name, old_ext )) name_len -= strlen( old_ext );
return strmake( "%.*s%s", name_len, name, new_ext );
}
static inline int make_temp_file( const char *prefix, const char *suffix, char **name )
{
static unsigned int value;
int fd, count;
const char *tmpdir = NULL;
if (!prefix) prefix = "tmp";
if (!suffix) suffix = "";
value += time(NULL) + getpid();
for (count = 0; count < 0x8000; count++)
{
if (tmpdir)
*name = strmake( "%s/%s-%08x%s", tmpdir, prefix, value, suffix );
else
*name = strmake( "%s-%08x%s", prefix, value, suffix );
fd = open( *name, O_RDWR | O_CREAT | O_EXCL, 0600 );
if (fd >= 0) return fd;
value += 7777;
if (errno == EACCES && !tmpdir && !strchr( prefix, '/' ))
{
if (!(tmpdir = getenv("TMPDIR"))) tmpdir = "/tmp";
}
free( *name );
}
fprintf( stderr, "failed to create temp file for %s%s\n", prefix, suffix );
exit(1);
}
/* command-line option parsing */
/* partly based on the Glibc getopt() implementation */
struct long_option
{
const char *name;
int has_arg;
int val;
};
static inline struct strarray parse_options( int argc, char **argv, const char *short_opts,
const struct long_option *long_opts, int long_only,
void (*callback)( int, char* ) )
{
struct strarray ret = empty_strarray;
const char *flag;
char *start, *end;
int i;
#define OPT_ERR(fmt) { callback( '?', strmake( fmt, argv[1] )); continue; }
for (i = 1; i < argc; i++)
{
if (argv[i][0] != '-' || !argv[i][1]) /* not an option */
{
strarray_add( &ret, argv[i] );
continue;
}
if (!strcmp( argv[i], "--" ))
{
/* add remaining args */
while (++i < argc) strarray_add( &ret, argv[i] );
break;
}
start = argv[i] + 1 + (argv[i][1] == '-');
if (argv[i][1] == '-' || (long_only && (argv[i][2] || !strchr( short_opts, argv[i][1] ))))
{
/* handle long option */
const struct long_option *opt, *found = NULL;
int count = 0;
if (!(end = strchr( start, '=' ))) end = start + strlen(start);
for (opt = long_opts; opt && opt->name; opt++)
{
if (strncmp( opt->name, start, end - start )) continue;
if (!opt->name[end - start]) /* exact match */
{
found = opt;
count = 1;
break;
}
if (!found)
{
found = opt;
count++;
}
else if (long_only || found->has_arg != opt->has_arg || found->val != opt->val)
{
count++;
}
}
if (count > 1) OPT_ERR( "option '%s' is ambiguous" );
if (found)
{
if (*end)
{
if (!found->has_arg) OPT_ERR( "argument not allowed in '%s'" );
end++; /* skip '=' */
}
else if (found->has_arg == 1)
{
if (i == argc - 1) OPT_ERR( "option '%s' requires an argument" );
end = argv[++i];
}
else end = NULL;
callback( found->val, end );
continue;
}
if (argv[i][1] == '-' || !long_only || !strchr( short_opts, argv[i][1] ))
OPT_ERR( "unrecognized option '%s'" );
}
/* handle short option */
for ( ; *start; start++)
{
if (!(flag = strchr( short_opts, *start ))) OPT_ERR( "invalid option '%s'" );
if (flag[1] == ':')
{
end = start + 1;
if (!*end) end = NULL;
if (flag[2] != ':' && !end)
{
if (i == argc - 1) OPT_ERR( "option '%s' requires an argument" );
end = argv[++i];
}
callback( *start, end );
break;
}
callback( *start, NULL );
}
}
return ret;
#undef OPT_ERR
}
#endif /* __WINE_TOOLS_H */