253 lines
6.4 KiB
C
253 lines
6.4 KiB
C
/*
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* Helper functions for the Wine tools
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*
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* Copyright 2021 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef __WINE_TOOLS_H
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#define __WINE_TOOLS_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>
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#include <sys/types.h>
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#include <errno.h>
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#ifdef HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#if defined(_WIN32) && !defined(__CYGWIN__)
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# include <process.h>
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#else
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# include <sys/wait.h>
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# include <unistd.h>
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#endif
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#if !defined(__GNUC__) && !defined(__attribute__)
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#define __attribute__(x)
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#endif
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#ifndef max
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#define max(a,b) (((a) > (b)) ? (a) : (b))
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#endif
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#ifndef min
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#define min(a,b) (((a) < (b)) ? (a) : (b))
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#endif
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#ifndef ARRAY_SIZE
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#endif
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static inline void *xmalloc( size_t size )
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{
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void *res = malloc( size ? size : 1 );
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if (res == NULL)
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{
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fprintf( stderr, "Virtual memory exhausted.\n" );
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exit(1);
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}
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return res;
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}
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static inline void *xrealloc (void *ptr, size_t size)
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{
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void *res = realloc( ptr, size );
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if (size && res == NULL)
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{
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fprintf( stderr, "Virtual memory exhausted.\n" );
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exit(1);
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}
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return res;
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}
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static inline char *xstrdup( const char *str )
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{
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return strcpy( xmalloc( strlen(str)+1 ), str );
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}
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static inline int strendswith( const char *str, const char *end )
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{
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int l = strlen( str );
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int m = strlen( end );
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return l >= m && !strcmp( str + l - m, end );
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}
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static char *strmake( const char* fmt, ... ) __attribute__ ((__format__ (__printf__, 1, 2)));
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static inline char *strmake( const char* fmt, ... )
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{
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int n;
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size_t size = 100;
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va_list ap;
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for (;;)
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{
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char *p = xmalloc( size );
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va_start( ap, fmt );
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n = vsnprintf( p, size, fmt, ap );
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va_end( ap );
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if (n == -1) size *= 2;
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else if ((size_t)n >= size) size = n + 1;
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else return p;
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free( p );
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}
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}
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/* string array functions */
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struct strarray
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{
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unsigned int count; /* strings in use */
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unsigned int size; /* total allocated size */
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const char **str;
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};
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static const struct strarray empty_strarray;
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static inline void strarray_add( struct strarray *array, const char *str )
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{
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if (array->count == array->size)
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{
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if (array->size) array->size *= 2;
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else array->size = 16;
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array->str = xrealloc( array->str, sizeof(array->str[0]) * array->size );
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}
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array->str[array->count++] = str;
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}
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static inline void strarray_addall( struct strarray *array, struct strarray added )
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{
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unsigned int i;
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for (i = 0; i < added.count; i++) strarray_add( array, added.str[i] );
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}
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static inline int strarray_exists( const struct strarray *array, const char *str )
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{
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unsigned int i;
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for (i = 0; i < array->count; i++) if (!strcmp( array->str[i], str )) return 1;
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return 0;
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}
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static inline void strarray_add_uniq( struct strarray *array, const char *str )
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{
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if (!strarray_exists( array, str )) strarray_add( array, str );
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}
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static inline void strarray_addall_uniq( struct strarray *array, struct strarray added )
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{
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unsigned int i;
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for (i = 0; i < added.count; i++) strarray_add_uniq( array, added.str[i] );
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}
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static inline struct strarray strarray_fromstring( const char *str, const char *delim )
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{
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struct strarray array = empty_strarray;
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char *buf = xstrdup( str );
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const char *tok;
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for (tok = strtok( buf, delim ); tok; tok = strtok( NULL, delim ))
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strarray_add( &array, xstrdup( tok ));
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free( buf );
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return array;
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}
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static inline struct strarray strarray_frompath( const char *path )
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{
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if (!path) return empty_strarray;
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#if defined(_WIN32) && !defined(__CYGWIN__)
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return strarray_fromstring( path, ";" );
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#else
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return strarray_fromstring( path, ":" );
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#endif
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}
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static inline char *strarray_tostring( struct strarray array, const char *sep )
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{
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char *str;
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unsigned int i, len = 1 + (array.count - 1) * strlen(sep);
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if (!array.count) return xstrdup("");
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for (i = 0; i < array.count; i++) len += strlen( array.str[i] );
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str = xmalloc( len );
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strcpy( str, array.str[0] );
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for (i = 1; i < array.count; i++)
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{
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strcat( str, sep );
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strcat( str, array.str[i] );
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}
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return str;
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}
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static inline void strarray_qsort( struct strarray *array, int (*func)(const char **, const char **) )
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{
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if (array->count) qsort( array->str, array->count, sizeof(*array->str), (void *)func );
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}
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static inline const char *strarray_bsearch( const struct strarray *array, const char *str,
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int (*func)(const char **, const char **) )
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{
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char **res = NULL;
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if (array->count) res = bsearch( &str, array->str, array->count, sizeof(*array->str), (void *)func );
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return res ? *res : NULL;
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}
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static inline void strarray_trace( struct strarray args )
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{
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unsigned int i;
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for (i = 0; i < args.count; i++)
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{
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if (strpbrk( args.str[i], " \t\n\r")) printf( "\"%s\"", args.str[i] );
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else printf( "%s", args.str[i] );
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putchar( i < args.count - 1 ? ' ' : '\n' );
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}
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}
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static inline int strarray_spawn( struct strarray args )
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{
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#if defined(_WIN32) && !defined(__CYGWIN__)
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strarray_add( &args, NULL );
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return _spawnvp( _P_WAIT, args.str[0], args.str );
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#else
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pid_t pid, wret;
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int status;
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if (!(pid = fork()))
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{
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strarray_add( &args, NULL );
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execvp( args.str[0], (char **)args.str );
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_exit(1);
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}
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if (pid == -1) return -1;
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while (pid != (wret = waitpid( pid, &status, 0 )))
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if (wret == -1 && errno != EINTR) break;
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if (pid == wret && WIFEXITED(status)) return WEXITSTATUS(status);
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return 255; /* abnormal exit with an abort or an interrupt */
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#endif
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}
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#endif /* __WINE_TOOLS_H */
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