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/*
* Copyright (C) 2000-2003 the xine project
*
* This file is part of xine, a free video player.
*
* xine is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* xine 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
* $Id: utils.c,v 1.23 2003/12/09 00:02:39 f1rmb Exp $
*
*/
#define _POSIX_PTHREAD_SEMANTICS 1 /* for 5-arg getpwuid_r on solaris */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "xineutils.h"
#include <errno.h>
#include <pwd.h>
#if HAVE_EXECINFO_H
#include <execinfo.h>
#endif
#if HAVE_UCONTEXT_H
#include <ucontext.h>
#endif
void *xine_xmalloc(size_t size) {
void *ptr;
/* prevent xine_xmalloc(0) of possibly returning NULL */
if( !size )
size++;
if((ptr = calloc(1, size)) == NULL) {
fprintf(stderr, "%s: malloc() failed: %s.\n",
__XINE_FUNCTION__, strerror(errno));
return NULL;
}
return ptr;
}
void *xine_xmalloc_aligned(size_t alignment, size_t size, void **base) {
char *ptr;
*base = ptr = xine_xmalloc (size+alignment);
while ((size_t) ptr % alignment)
ptr++;
return ptr;
}
#ifndef BUFSIZ
#define BUFSIZ 256
#endif
const char *xine_get_homedir(void) {
#ifdef WIN32
return XINE_HOMEDIR;
#else
struct passwd pwd, *pw = NULL;
static char homedir[BUFSIZ] = {0,};
if(homedir[0])
return homedir;
#ifdef HAVE_GETPWUID_R
if(getpwuid_r(getuid(), &pwd, homedir, sizeof(homedir), &pw) != 0 || pw == NULL) {
#else
if((pw = getpwuid(getuid())) == NULL) {
#endif
char *tmp = getenv("HOME");
if(tmp) {
strncpy(homedir, tmp, sizeof(homedir));
homedir[sizeof(homedir) - 1] = '\0';
}
} else {
char *s = strdup(pw->pw_dir);
strncpy(homedir, s, sizeof(homedir));
homedir[sizeof(homedir) - 1] = '\0';
free(s);
}
if(!homedir[0]) {
printf("xine_get_homedir: Unable to get home directory, set it to /tmp.\n");
strcpy(homedir, "/tmp");
}
return homedir;
#endif /* _MSC_VER */
}
char *xine_chomp(char *str) {
char *pbuf;
pbuf = str;
while(*pbuf != '\0') pbuf++;
while(pbuf > str) {
if(*pbuf == '\r' || *pbuf == '\n' || *pbuf == '"') pbuf = '\0';
pbuf--;
}
while(*pbuf == '=' || *pbuf == '"') pbuf++;
return pbuf;
}
/*
* a thread-safe usecond sleep
*/
void xine_usec_sleep(unsigned usec) {
#if HAVE_NANOSLEEP
/* nanosleep is prefered on solaris, because it's mt-safe */
struct timespec ts;
ts.tv_sec = usec / 1000000;
ts.tv_nsec = (usec % 1000000) * 1000;
nanosleep(&ts, NULL);
#else
usleep(usec);
#endif
}
/* print a hexdump of length bytes from the data given in buf */
void xine_hexdump (const char *buf, int length) {
int i,j;
unsigned char c;
/* printf ("Hexdump: %i Bytes\n", length);*/
for(j=0; j<69; j++)
printf ("-");
printf ("\n");
j=0;
while(j<length) {
printf ("%04X ",j);
for (i=j; i<j+16; i++) {
if( i<length )
printf ("%02X ", (unsigned char) buf[i]);
else
printf(" ");
}
for (i=j;i<(j+16<length?j+16:length);i++) {
c=buf[i];
if ((c>=32) && (c<127))
printf ("%c", c);
else
printf (".");
}
j=i;
printf("\n");
}
for(j=0; j<69; j++)
printf("-");
printf("\n");
}
#ifndef HAVE_BASENAME
#define FILESYSTEM_PREFIX_LEN(filename) 0
#define ISSLASH(C) ((C) == '/')
/*
* get base name
*
* (adopted from sh-utils)
*/
char *basename (char const *name) {
char const *base = name + FILESYSTEM_PREFIX_LEN (name);
char const *p;
for (p = base; *p; p++)
{
if (ISSLASH (*p))
{
/* Treat multiple adjacent slashes like a single slash. */
do p++;
while (ISSLASH (*p));
/* If the file name ends in slash, use the trailing slash as
the basename if no non-slashes have been found. */
if (! *p)
{
if (ISSLASH (*base))
base = p - 1;
break;
}
/* *P is a non-slash preceded by a slash. */
base = p;
}
}
return (char *) base;
}
#endif
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