Sweden-Number/tools/winegcc/utils.c

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/*
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* Useful functions for winegcc
*
* Copyright 2000 Francois Gouget
* Copyright 2002 Dimitrie O. Paun
* Copyright 2003 Richard Cohen
*
* 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
*/
#include "config.h"
#include "wine/port.h"
#include <stdio.h>
#include <string.h>
#include <stdarg.h>
#include <stdlib.h>
#include <errno.h>
#include "utils.h"
#if !defined(min)
# define min(x,y) (((x) < (y)) ? (x) : (y))
#endif
#if defined(_WIN32) && !defined(__CYGWIN__)
# define PATH_SEPARATOR ';'
#else
# define PATH_SEPARATOR ':'
#endif
int verbose = 0;
void error(const char* s, ...)
{
va_list ap;
va_start(ap, s);
fprintf(stderr, "winegcc: ");
vfprintf(stderr, s, ap);
va_end(ap);
exit(2);
}
void* xmalloc(size_t size)
{
void* p;
if ((p = malloc (size)) == NULL)
error("Could not malloc %d bytes\n", size);
return p;
}
void *xrealloc(void* p, size_t size)
{
void* p2 = realloc (p, size);
if (size && !p2)
error("Could not realloc %d bytes\n", size);
return p2;
}
char *xstrdup( const char *str )
{
char *res = strdup( str );
if (!res) error("Virtual memory exhausted.\n");
return res;
}
int strendswith(const char* str, const char* end)
{
int l = strlen(str);
int m = strlen(end);
return l >= m && strcmp(str + l - m, end) == 0;
}
char* strmake(const char* fmt, ...)
{
int n;
size_t size = 100;
va_list ap;
while (1)
{
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);
}
}
strarray* strarray_alloc(void)
{
strarray* arr = xmalloc(sizeof(*arr));
arr->maximum = arr->size = 0;
arr->base = NULL;
return arr;
}
void strarray_free(strarray* arr)
{
free(arr->base);
free(arr);
}
void strarray_add(strarray* arr, const char* str)
{
if (arr->size == arr->maximum)
{
arr->maximum += 10;
arr->base = xrealloc(arr->base, sizeof(*(arr->base)) * arr->maximum);
}
arr->base[arr->size++] = str;
}
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void strarray_del(strarray* arr, unsigned int i)
{
if (i >= arr->size) error("Invalid index i=%d\n", i);
memmove(&arr->base[i], &arr->base[i + 1], (arr->size - i - 1) * sizeof(arr->base[0]));
arr->size--;
}
void strarray_addall(strarray* arr, const strarray* from)
{
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unsigned int i;
for (i = 0; i < from->size; i++)
strarray_add(arr, from->base[i]);
}
strarray* strarray_dup(const strarray* arr)
{
strarray* dup = strarray_alloc();
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unsigned int i;
for (i = 0; i < arr->size; i++)
strarray_add(dup, arr->base[i]);
return dup;
}
strarray* strarray_fromstring(const char* str, const char* delim)
{
strarray* arr = strarray_alloc();
char* buf = strdup(str);
const char* tok;
for(tok = strtok(buf, delim); tok; tok = strtok(0, delim))
strarray_add(arr, strdup(tok));
free(buf);
return arr;
}
char* strarray_tostring(const strarray* arr, const char* sep)
{
char *str, *newstr;
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unsigned int i;
str = strmake("%s", arr->base[0]);
for (i = 1; i < arr->size; i++)
{
newstr = strmake("%s%s%s", str, sep, arr->base[i]);
free(str);
str = newstr;
}
return str;
}
char* get_basename(const char* file)
{
const char* name;
char *base_name, *p;
if ((name = strrchr(file, '/'))) name++;
else name = file;
base_name = strdup(name);
if ((p = strrchr(base_name, '.'))) *p = 0;
return base_name;
}
void create_file(const char* name, int mode, const char* fmt, ...)
{
va_list ap;
FILE *file;
if (verbose) printf("Creating file %s\n", name);
va_start(ap, fmt);
if ( !(file = fopen(name, "w")) )
error("Unable to open %s for writing\n", name);
vfprintf(file, fmt, ap);
va_end(ap);
fclose(file);
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chmod(name, mode);
}
file_type get_file_type(const char* filename)
{
/* see tools/winebuild/res32.c: check_header for details */
static const char res_sig[] = { 0,0,0,0, 32,0,0,0, 0xff,0xff, 0,0, 0xff,0xff, 0,0, 0,0,0,0, 0,0, 0,0, 0,0,0,0, 0,0,0,0 };
static const char elf_sig[4] = "\177ELF";
char buf[sizeof(res_sig)];
int fd, cnt;
fd = open( filename, O_RDONLY );
if (fd == -1) return file_na;
cnt = read(fd, buf, sizeof(buf));
close( fd );
if (cnt == -1) return file_na;
if (cnt == sizeof(res_sig) && !memcmp(buf, res_sig, sizeof(res_sig))) return file_res;
if (strendswith(filename, ".o")) return file_obj;
if (strendswith(filename, ".a")) return file_arh;
if (strendswith(filename, ".res")) return file_res;
if (strendswith(filename, ".so")) return file_so;
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if (strendswith(filename, ".dylib")) return file_so;
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if (strendswith(filename, ".def")) return file_def;
if (strendswith(filename, ".spec")) return file_spec;
if (strendswith(filename, ".rc")) return file_rc;
if (cnt >= sizeof(elf_sig) && !memcmp(buf, elf_sig, sizeof(elf_sig))) return file_so; /* ELF lib */
if (cnt >= sizeof(unsigned int) &&
(*(unsigned int *)buf == 0xfeedface || *(unsigned int *)buf == 0xcefaedfe ||
*(unsigned int *)buf == 0xfeedfacf || *(unsigned int *)buf == 0xcffaedfe))
return file_so; /* Mach-O lib */
return file_other;
}
static char* try_lib_path(const char* dir, const char* pre,
const char* library, const char* ext,
file_type expected_type)
{
char *fullname;
file_type type;
/* first try a subdir named from the library we are looking for */
fullname = strmake("%s/%s/%s%s%s", dir, library, pre, library, ext);
if (verbose > 1) fprintf(stderr, "Try %s...", fullname);
type = get_file_type(fullname);
if (verbose > 1) fprintf(stderr, type == expected_type ? "FOUND!\n" : "no\n");
if (type == expected_type) return fullname;
free( fullname );
fullname = strmake("%s/%s%s%s", dir, pre, library, ext);
if (verbose > 1) fprintf(stderr, "Try %s...", fullname);
type = get_file_type(fullname);
if (verbose > 1) fprintf(stderr, type == expected_type ? "FOUND!\n" : "no\n");
if (type == expected_type) return fullname;
free( fullname );
return 0;
}
static file_type guess_lib_type(enum target_platform platform, const char* dir,
const char* library, const char *suffix, char** file)
{
if (platform != PLATFORM_WINDOWS && platform != PLATFORM_CYGWIN)
{
/* Unix shared object */
if ((*file = try_lib_path(dir, "lib", library, ".so", file_so)))
return file_so;
/* Mach-O (Darwin/Mac OS X) Dynamic Library behaves mostly like .so */
if ((*file = try_lib_path(dir, "lib", library, ".dylib", file_so)))
return file_so;
/* Windows DLL */
if ((*file = try_lib_path(dir, "lib", library, ".def", file_def)))
return file_dll;
}
/* static archives */
if ((*file = try_lib_path(dir, "lib", library, suffix, file_arh)))
return file_arh;
return file_na;
}
file_type get_lib_type(enum target_platform platform, strarray* path, const char *library,
const char *suffix, char** file)
{
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unsigned int i;
if (!suffix) suffix = ".a";
for (i = 0; i < path->size; i++)
{
file_type type = guess_lib_type(platform, path->base[i], library, suffix, file);
if (type != file_na) return type;
}
return file_na;
}
const char *find_binary( const strarray* prefix, const char *name )
{
char *file_name, *args;
static strarray *path;
unsigned int i;
if (strchr( name, '/' )) return name;
file_name = xstrdup( name );
if ((args = strchr( file_name, ' ' ))) *args++ = 0;
if (prefix)
{
for (i = 0; i < prefix->size; i++)
{
struct stat st;
char *prog = strmake( "%s/%s%s", prefix->base[i], file_name, EXEEXT );
if (stat( prog, &st ) == 0 && S_ISREG( st.st_mode ) && (st.st_mode & 0111))
return args ? strmake( "%s %s", prog, args ) : prog;
free( prog );
}
}
if (!path)
{
path = strarray_alloc();
/* then append the PATH directories */
if (getenv( "PATH" ))
{
char *p = xstrdup( getenv( "PATH" ));
while (*p)
{
strarray_add( path, p );
while (*p && *p != PATH_SEPARATOR) p++;
if (!*p) break;
*p++ = 0;
}
}
}
return prefix == path ? NULL : find_binary( path, name );
}
int spawn(const strarray* prefix, const strarray* args, int ignore_errors)
{
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unsigned int i;
int status;
strarray* arr = strarray_dup(args);
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const char** argv;
char* prog = 0;
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strarray_add(arr, NULL);
argv = arr->base;
argv[0] = find_binary( prefix, argv[0] );
if (verbose)
{
for(i = 0; argv[i]; i++) printf("%s ", argv[i]);
printf("\n");
}
if ((status = _spawnvp( _P_WAIT, argv[0], argv)) && !ignore_errors)
{
if (status > 0) error("%s failed\n", argv[0]);
else perror("winegcc");
exit(3);
}
free(prog);
strarray_free(arr);
return status;
}