big s/polyp/pulse/g

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1033 fefdeb5f-60dc-0310-8127-8f9354f1896f

1 files changed, 0 insertions, 1023 deletions

diff --git a/src/polypcore/core-util.c b/src/polypcore/core-util.c
deleted file mode 100644
index dfa41f57..00000000
--- a/src/polypcore/core-util.c
+++ /dev/null
@@ -1,1023 +0,0 @@
-/* $Id$ */
-
-/***
-  This file is part of polypaudio.
- 
-  polypaudio 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.
- 
-  polypaudio 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 polypaudio; if not, write to the Free Software
-  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
-  USA.
-***/
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <stdarg.h>
-#include <stdlib.h>
-#include <signal.h>
-#include <errno.h>
-#include <assert.h>
-#include <string.h>
-#include <stdio.h>
-#include <fcntl.h>
-#include <unistd.h>
-#include <limits.h>
-#include <time.h>
-#include <ctype.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/time.h>
-
-#ifdef HAVE_SCHED_H
-#include <sched.h>
-#endif
-
-#ifdef HAVE_SYS_RESOURCE_H
-#include <sys/resource.h>
-#endif
-
-#ifdef HAVE_PTHREAD
-#include <pthread.h>
-#endif
-
-#ifdef HAVE_NETDB_H
-#include <netdb.h>
-#endif
-
-#ifdef HAVE_WINDOWS_H
-#include <windows.h>
-#endif
-
-#ifdef HAVE_PWD_H
-#include <pwd.h>
-#endif
-
-#ifdef HAVE_GRP_H
-#include <grp.h>
-#endif
-
-#include <samplerate.h>
-
-#include <polyp/xmalloc.h>
-#include <polyp/util.h>
-
-#include <polypcore/core-error.h>
-#include <polypcore/winsock.h>
-#include <polypcore/log.h>
-
-#include "core-util.h"
-
-#ifndef OS_IS_WIN32
-#define PA_RUNTIME_PATH_PREFIX "/tmp/polypaudio-"
-#define PATH_SEP '/'
-#else
-#define PA_RUNTIME_PATH_PREFIX "%TEMP%\\polypaudio-"
-#define PATH_SEP '\\'
-#endif
-
-#ifdef OS_IS_WIN32
-
-#define POLYP_ROOTENV "POLYP_ROOT"
-
-int pa_set_root(HANDLE handle) {
-    char library_path[MAX_PATH + sizeof(POLYP_ROOTENV) + 1], *sep;
-
-    strcpy(library_path, POLYP_ROOTENV "=");
-
-    if (!GetModuleFileName(handle, library_path + sizeof(POLYP_ROOTENV), MAX_PATH))
-        return 0;
-
-    sep = strrchr(library_path, '\\');
-    if (sep)
-        *sep = '\0';
-
-    if (_putenv(library_path) < 0)
-        return 0;
-
-    return 1;
-}
-
-#endif
-
-/** Make a file descriptor nonblock. Doesn't do any error checking */
-void pa_make_nonblock_fd(int fd) {
-#ifdef O_NONBLOCK
-    int v;
-    assert(fd >= 0);
-
-    if ((v = fcntl(fd, F_GETFL)) >= 0)
-        if (!(v & O_NONBLOCK))
-            fcntl(fd, F_SETFL, v|O_NONBLOCK);
-#elif defined(OS_IS_WIN32)
-    u_long arg = 1;
-    if (ioctlsocket(fd, FIONBIO, &arg) < 0) {
-        if (WSAGetLastError() == WSAENOTSOCK)
-            pa_log_warn(__FILE__": WARNING: Only sockets can be made non-blocking!");
-    }
-#else
-    pa_log_warn(__FILE__": WARNING: Non-blocking I/O not supported.!");
-#endif
-}
-
-/** Creates a directory securely */
-int pa_make_secure_dir(const char* dir) {
-    struct stat st;
-    assert(dir);
-
-#ifdef OS_IS_WIN32
-    if (mkdir(dir) < 0)
-#else
-    if (mkdir(dir, 0700) < 0)
-#endif
-        if (errno != EEXIST)
-            return -1;
-
-#ifdef HAVE_CHOWN
-    chown(dir, getuid(), getgid());
-#endif
-#ifdef HAVE_CHMOD
-    chmod(dir, 0700);
-#endif
-    
-#ifdef HAVE_LSTAT
-    if (lstat(dir, &st) < 0)
-#else
-    if (stat(dir, &st) < 0)
-#endif
-        goto fail;
-    
-#ifndef OS_IS_WIN32
-    if (!S_ISDIR(st.st_mode) || (st.st_uid != getuid()) || ((st.st_mode & 0777) != 0700))
-        goto fail;
-#else
-    fprintf(stderr, "FIXME: pa_make_secure_dir()\n");
-#endif
-    
-    return 0;
-    
-fail:
-    rmdir(dir);
-    return -1;
-}
-
-/* Return a newly allocated sting containing the parent directory of the specified file */
-char *pa_parent_dir(const char *fn) {
-    char *slash, *dir = pa_xstrdup(fn);
-
-    slash = (char*) pa_path_get_filename(dir);
-    if (slash == fn)
-        return NULL;
-
-    *(slash-1) = 0;
-    return dir;
-}
-
-/* Creates a the parent directory of the specified path securely */
-int pa_make_secure_parent_dir(const char *fn) {
-    int ret = -1;
-    char *dir;
-
-    if (!(dir = pa_parent_dir(fn)))
-        goto finish;
-    
-    if (pa_make_secure_dir(dir) < 0)
-        goto finish;
-
-    ret = 0;
-    
-finish:
-    pa_xfree(dir);
-    return ret;
-}
-
-/** Platform independent read function. Necessary since not all systems
- * treat all file descriptors equal. */
-ssize_t pa_read(int fd, void *buf, size_t count) {
-    ssize_t r;
-
-#ifdef OS_IS_WIN32
-    r = recv(fd, buf, count, 0);
-    if (r < 0) {
-        if (WSAGetLastError() != WSAENOTSOCK) {
-            errno = WSAGetLastError();
-            return r;
-        }
-    }
-
-    if (r < 0)
-#endif
-        r = read(fd, buf, count);
-
-    return r;
-}
-
-/** Similar to pa_read(), but handles writes */
-ssize_t pa_write(int fd, const void *buf, size_t count) {
-    ssize_t r;
-
-#ifdef OS_IS_WIN32
-    r = send(fd, buf, count, 0);
-    if (r < 0) {
-        if (WSAGetLastError() != WSAENOTSOCK) {
-            errno = WSAGetLastError();
-            return r;
-        }
-    }
-
-    if (r < 0)
-#endif
-        r = write(fd, buf, count);
-
-    return r;
-}
-
-/** Calls read() in a loop. Makes sure that as much as 'size' bytes,
- * unless EOF is reached or an error occured */
-ssize_t pa_loop_read(int fd, void*data, size_t size) {
-    ssize_t ret = 0;
-    assert(fd >= 0 && data && size);
-
-    while (size > 0) {
-        ssize_t r;
-
-        if ((r = pa_read(fd, data, size)) < 0)
-            return r;
-
-        if (r == 0)
-            break;
-        
-        ret += r;
-        data = (uint8_t*) data + r;
-        size -= r;
-    }
-
-    return ret;
-}
-
-/** Similar to pa_loop_read(), but wraps write() */
-ssize_t pa_loop_write(int fd, const void*data, size_t size) {
-    ssize_t ret = 0;
-    assert(fd >= 0 && data && size);
-
-    while (size > 0) {
-        ssize_t r;
-
-        if ((r = pa_write(fd, data, size)) < 0)
-            return r;
-
-        if (r == 0)
-            break;
-        
-        ret += r;
-        data = (const uint8_t*) data + r;
-        size -= r;
-    }
-
-    return ret;
-}
-
-/* Print a warning messages in case that the given signal is not
- * blocked or trapped */
-void pa_check_signal_is_blocked(int sig) {
-#ifdef HAVE_SIGACTION
-    struct sigaction sa;
-    sigset_t set;
-
-    /* If POSIX threads are supported use thread-aware
-     * pthread_sigmask() function, to check if the signal is
-     * blocked. Otherwise fall back to sigprocmask() */
-    
-#ifdef HAVE_PTHREAD    
-    if (pthread_sigmask(SIG_SETMASK, NULL, &set) < 0) {
-#endif
-        if (sigprocmask(SIG_SETMASK, NULL, &set) < 0) {
-            pa_log(__FILE__": sigprocmask(): %s", pa_cstrerror(errno));
-            return;
-        }
-#ifdef HAVE_PTHREAD
-    }
-#endif
-
-    if (sigismember(&set, sig))
-        return;
-
-    /* Check whether the signal is trapped */
-    
-    if (sigaction(sig, NULL, &sa) < 0) {
-        pa_log(__FILE__": sigaction(): %s", pa_cstrerror(errno));
-        return;
-    }
-        
-    if (sa.sa_handler != SIG_DFL)
-        return;
-    
-    pa_log(__FILE__": WARNING: %s is not trapped. This might cause malfunction!", pa_strsignal(sig));
-#else /* HAVE_SIGACTION */
-    pa_log(__FILE__": WARNING: %s might not be trapped. This might cause malfunction!", pa_strsignal(sig));
-#endif
-}
-
-/* The following function is based on an example from the GNU libc
- * documentation. This function is similar to GNU's asprintf(). */
-char *pa_sprintf_malloc(const char *format, ...) {
-    int  size = 100;
-    char *c = NULL;
-    
-    assert(format);
-    
-    for(;;) {
-        int r;
-        va_list ap;
-
-        c = pa_xrealloc(c, size);
-
-        va_start(ap, format);
-        r = vsnprintf(c, size, format, ap);
-        va_end(ap);
-        
-        if (r > -1 && r < size)
-            return c;
-
-        if (r > -1)    /* glibc 2.1 */
-            size = r+1; 
-        else           /* glibc 2.0 */
-            size *= 2;
-    }
-}
-
-/* Same as the previous function, but use a va_list instead of an
- * ellipsis */
-char *pa_vsprintf_malloc(const char *format, va_list ap) {
-    int  size = 100;
-    char *c = NULL;
-    
-    assert(format);
-    
-    for(;;) {
-        int r;
-        va_list aq;
-
-        va_copy(aq, ap);
-
-        c = pa_xrealloc(c, size);
-        r = vsnprintf(c, size, format, aq);
-
-        va_end(aq);
-        
-        if (r > -1 && r < size)
-            return c;
-
-        if (r > -1)    /* glibc 2.1 */
-            size = r+1; 
-        else           /* glibc 2.0 */
-            size *= 2;
-    }
-}
-
-/* Similar to OpenBSD's strlcpy() function */
-char *pa_strlcpy(char *b, const char *s, size_t l) {
-    assert(b && s && l > 0);
-
-    strncpy(b, s, l);
-    b[l-1] = 0;
-    return b;
-}
-
-#define NICE_LEVEL (-15)
-
-/* Raise the priority of the current process as much as possible and
-sensible: set the nice level to -15 and enable realtime scheduling if
-supported.*/
-void pa_raise_priority(void) {
-
-#ifdef HAVE_SYS_RESOURCE_H
-    if (setpriority(PRIO_PROCESS, 0, NICE_LEVEL) < 0)
-        pa_log_warn(__FILE__": setpriority(): %s", pa_cstrerror(errno));
-    else 
-        pa_log_info(__FILE__": Successfully gained nice level %i.", NICE_LEVEL); 
-#endif
-    
-#ifdef _POSIX_PRIORITY_SCHEDULING
-    {
-        struct sched_param sp;
-
-        if (sched_getparam(0, &sp) < 0) {
-            pa_log(__FILE__": sched_getparam(): %s", pa_cstrerror(errno));
-            return;
-        }
-        
-        sp.sched_priority = 1;
-        if (sched_setscheduler(0, SCHED_FIFO, &sp) < 0) {
-            pa_log_warn(__FILE__": sched_setscheduler(): %s", pa_cstrerror(errno));
-            return;
-        }
-
-        pa_log_info(__FILE__": Successfully enabled SCHED_FIFO scheduling."); 
-    }
-#endif
-
-#ifdef OS_IS_WIN32
-    if (!SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS))
-        pa_log_warn(__FILE__": SetPriorityClass() failed: 0x%08X", GetLastError());
-    else
-        pa_log_info(__FILE__": Successfully gained high priority class."); 
-#endif
-}
-
-/* Reset the priority to normal, inverting the changes made by pa_raise_priority() */
-void pa_reset_priority(void) {
-#ifdef OS_IS_WIN32
-    SetPriorityClass(GetCurrentProcess(), NORMAL_PRIORITY_CLASS);
-#endif
-
-#ifdef _POSIX_PRIORITY_SCHEDULING
-    {
-        struct sched_param sp;
-        sched_getparam(0, &sp);
-        sp.sched_priority = 0;
-        sched_setscheduler(0, SCHED_OTHER, &sp);
-    }
-#endif
-
-#ifdef HAVE_SYS_RESOURCE_H
-    setpriority(PRIO_PROCESS, 0, 0);
-#endif
-}
-
-/* Set the FD_CLOEXEC flag for a fd */
-int pa_fd_set_cloexec(int fd, int b) {
-
-#ifdef FD_CLOEXEC
-    int v;
-    assert(fd >= 0);
-
-    if ((v = fcntl(fd, F_GETFD, 0)) < 0)
-        return -1;
-    
-    v = (v & ~FD_CLOEXEC) | (b ? FD_CLOEXEC : 0);
-    
-    if (fcntl(fd, F_SETFD, v) < 0)
-        return -1;
-#endif    
-
-    return 0;
-}
-
-/* Try to parse a boolean string value.*/
-int pa_parse_boolean(const char *v) {
-    
-    if (!strcmp(v, "1") || v[0] == 'y' || v[0] == 'Y' || v[0] == 't' || v[0] == 'T' || !strcasecmp(v, "on"))
-        return 1;
-    else if (!strcmp(v, "0") || v[0] == 'n' || v[0] == 'N' || v[0] == 'f' || v[0] == 'F' || !strcasecmp(v, "off"))
-        return 0;
-
-    return -1;
-}
-
-/* Split the specified string wherever one of the strings in delimiter
- * occurs. Each time it is called returns a newly allocated string
- * with pa_xmalloc(). The variable state points to, should be
- * initiallized to NULL before the first call. */
-char *pa_split(const char *c, const char *delimiter, const char**state) {
-    const char *current = *state ? *state : c;
-    size_t l;
-
-    if (!*current)
-        return NULL;
-    
-    l = strcspn(current, delimiter);
-    *state = current+l;
-
-    if (**state)
-        (*state)++;
-
-    return pa_xstrndup(current, l);
-}
-
-/* What is interpreted as whitespace? */
-#define WHITESPACE " \t\n"
-
-/* Split a string into words. Otherwise similar to pa_split(). */
-char *pa_split_spaces(const char *c, const char **state) {
-    const char *current = *state ? *state : c;
-    size_t l;
-
-    if (!*current || *c == 0)
-        return NULL;
-
-    current += strspn(current, WHITESPACE);
-    l = strcspn(current, WHITESPACE);
-
-    *state = current+l;
-
-    return pa_xstrndup(current, l);
-}
-
-/* Return the name of an UNIX signal. Similar to GNU's strsignal() */
-const char *pa_strsignal(int sig) {
-    switch(sig) {
-        case SIGINT: return "SIGINT";
-        case SIGTERM: return "SIGTERM";
-#ifdef SIGUSR1
-        case SIGUSR1: return "SIGUSR1";
-#endif
-#ifdef SIGUSR2
-        case SIGUSR2: return "SIGUSR2";
-#endif
-#ifdef SIGXCPU
-        case SIGXCPU: return "SIGXCPU";
-#endif
-#ifdef SIGPIPE
-        case SIGPIPE: return "SIGPIPE";
-#endif
-#ifdef SIGCHLD
-        case SIGCHLD: return "SIGCHLD";
-#endif
-#ifdef SIGHUP
-        case SIGHUP: return "SIGHUP";
-#endif
-        default: return "UNKNOWN SIGNAL";
-    }
-}
-
-#ifdef HAVE_GRP_H
-
-/* Check whether the specified GID and the group name match */
-static int is_group(gid_t gid, const char *name) {
-    struct group group, *result = NULL;
-    long n;
-    void *data;
-    int r = -1;
-
-#ifdef HAVE_GETGRGID_R
-#ifdef _SC_GETGR_R_SIZE_MAX
-    n = sysconf(_SC_GETGR_R_SIZE_MAX);
-#else
-    n = -1;
-#endif
-    if (n < 0) n = 512;
-    data = pa_xmalloc(n);
-
-    if (getgrgid_r(gid, &group, data, n, &result) < 0 || !result) {
-        pa_log(__FILE__": getgrgid_r(%u): %s", (unsigned)gid, pa_cstrerror(errno));
-        goto finish;
-    }
-
-    r = strcmp(name, result->gr_name) == 0;
-    
-finish:
-    pa_xfree(data);
-#else
-    /* XXX Not thread-safe, but needed on OSes (e.g. FreeBSD 4.X) that do not
-     * support getgrgid_r. */
-    if ((result = getgrgid(gid)) == NULL) {
-        pa_log(__FILE__": getgrgid(%u): %s", gid, pa_cstrerror(errno));
-        goto finish;
-    }
-
-    r = strcmp(name, result->gr_name) == 0;
-
-finish:
-#endif
-    
-    return r;
-}
-
-/* Check the current user is member of the specified group */
-int pa_own_uid_in_group(const char *name, gid_t *gid) {
-    GETGROUPS_T *gids, tgid;
-    int n = sysconf(_SC_NGROUPS_MAX);
-    int r = -1, i;
-
-    assert(n > 0);
-    
-    gids = pa_xmalloc(sizeof(GETGROUPS_T)*n);
-    
-    if ((n = getgroups(n, gids)) < 0) {
-        pa_log(__FILE__": getgroups(): %s", pa_cstrerror(errno));
-        goto finish;
-    }
-
-    for (i = 0; i < n; i++) {
-        if (is_group(gids[i], name) > 0) {
-            *gid = gids[i];
-            r = 1;
-            goto finish;
-        }
-    }
-
-    if (is_group(tgid = getgid(), name) > 0) {
-        *gid = tgid;
-        r = 1;
-        goto finish;
-    }
-
-    r = 0;
-    
-finish:
-
-    pa_xfree(gids);
-    return r;
-}
-
-int pa_uid_in_group(uid_t uid, const char *name) {
-    char *g_buf, *p_buf;
-    long g_n, p_n;
-    struct group grbuf, *gr;
-    char **i;
-    int r = -1;
-    
-    g_n = sysconf(_SC_GETGR_R_SIZE_MAX);
-    g_buf = pa_xmalloc(g_n);
-
-    p_n = sysconf(_SC_GETPW_R_SIZE_MAX);
-    p_buf = pa_xmalloc(p_n);
-    
-    if (getgrnam_r(name, &grbuf, g_buf, (size_t) g_n, &gr) != 0 || !gr)
-        goto finish;
-
-    r = 0;
-    for (i = gr->gr_mem; *i; i++) {
-        struct passwd pwbuf, *pw;
-        
-        if (getpwnam_r(*i, &pwbuf, p_buf, (size_t) p_n, &pw) != 0 || !pw)
-            continue;
-
-        if (pw->pw_uid == uid) {
-            r = 1;
-            break;
-        }
-    }
-
-finish:
-    pa_xfree(g_buf);
-    pa_xfree(p_buf);
-
-    return r;
-}
-
-#else /* HAVE_GRP_H */
-
-int pa_own_uid_in_group(const char *name, gid_t *gid) {
-    return -1;
-    
-}
-
-int pa_uid_in_group(uid_t uid, const char *name) {
-    return -1;
-}
-
-#endif
-
-/* Lock or unlock a file entirely.
-  (advisory on UNIX, mandatory on Windows) */
-int pa_lock_fd(int fd, int b) {
-#ifdef F_SETLKW
-    struct flock flock;
-
-    /* Try a R/W lock first */
-    
-    flock.l_type = b ? F_WRLCK : F_UNLCK;
-    flock.l_whence = SEEK_SET;
-    flock.l_start = 0;
-    flock.l_len = 0;
-
-    if (fcntl(fd, F_SETLKW, &flock) >= 0)
-        return 0;
-
-    /* Perhaps the file descriptor qas opened for read only, than try again with a read lock. */
-    if (b && errno == EBADF) {
-        flock.l_type = F_RDLCK;
-        if (fcntl(fd, F_SETLKW, &flock) >= 0)
-            return 0;
-    }
-        
-    pa_log(__FILE__": %slock: %s", !b? "un" : "",
-        pa_cstrerror(errno));
-#endif
-
-#ifdef OS_IS_WIN32
-    HANDLE h = (HANDLE)_get_osfhandle(fd);
-
-    if (b && LockFile(h, 0, 0, 0xFFFFFFFF, 0xFFFFFFFF))
-        return 0;
-    if (!b && UnlockFile(h, 0, 0, 0xFFFFFFFF, 0xFFFFFFFF))
-        return 0;
-
-    pa_log(__FILE__": %slock failed: 0x%08X", !b ? "un" : "", GetLastError());
-#endif
-
-    return -1;
-}
-
-/* Remove trailing newlines from a string */
-char* pa_strip_nl(char *s) {
-    assert(s);
-
-    s[strcspn(s, "\r\n")] = 0;
-    return s;
-}
-
-/* Create a temporary lock file and lock it. */
-int pa_lock_lockfile(const char *fn) {
-    int fd = -1;
-    assert(fn);
-
-    for (;;) {
-        struct stat st;
-        
-        if ((fd = open(fn, O_CREAT|O_RDWR, S_IRUSR|S_IWUSR)) < 0) {
-            pa_log(__FILE__": failed to create lock file '%s': %s", fn,
-                pa_cstrerror(errno));
-            goto fail;
-        }
-        
-        if (pa_lock_fd(fd, 1) < 0) {
-            pa_log(__FILE__": failed to lock file '%s'.", fn);
-            goto fail;
-        }
-        
-        if (fstat(fd, &st) < 0) {
-            pa_log(__FILE__": failed to fstat() file '%s'.", fn);
-            goto fail;
-        }
-
-        /* Check wheter the file has been removed meanwhile. When yes, restart this loop, otherwise, we're done */
-        if (st.st_nlink >= 1)
-            break;
-            
-        if (pa_lock_fd(fd, 0) < 0) {
-            pa_log(__FILE__": failed to unlock file '%s'.", fn);
-            goto fail;
-        }
-        
-        if (close(fd) < 0) {
-            pa_log(__FILE__": failed to close file '%s'.", fn);
-            goto fail;
-        }
-
-        fd = -1;
-    }
-        
-    return fd;
-
-fail:
-
-    if (fd >= 0)
-        close(fd);
-
-    return -1;
-}
-
-/* Unlock a temporary lcok file */
-int pa_unlock_lockfile(const char *fn, int fd) {
-    int r = 0;
-    assert(fn && fd >= 0);
-
-    if (unlink(fn) < 0) {
-        pa_log_warn(__FILE__": WARNING: unable to remove lock file '%s': %s",
-            fn, pa_cstrerror(errno));
-        r = -1;
-    }
-    
-    if (pa_lock_fd(fd, 0) < 0) {
-        pa_log_warn(__FILE__": WARNING: failed to unlock file '%s'.", fn);
-        r = -1;
-    }
-
-    if (close(fd) < 0) {
-        pa_log_warn(__FILE__": WARNING: failed to close lock file '%s': %s",
-            fn, pa_cstrerror(errno));
-        r = -1;
-    }
-
-    return r;
-}
-
-/* Try to open a configuration file. If "env" is specified, open the
- * value of the specified environment variable. Otherwise look for a
- * file "local" in the home directory or a file "global" in global
- * file system. If "result" is non-NULL, a pointer to a newly
- * allocated buffer containing the used configuration file is
- * stored there.*/
-FILE *pa_open_config_file(const char *global, const char *local, const char *env, char **result, const char *mode) {
-    const char *fn;
-    char h[PATH_MAX];
-
-#ifdef OS_IS_WIN32
-    char buf[PATH_MAX];
-
-    if (!getenv(POLYP_ROOTENV))
-        pa_set_root(NULL);
-#endif
-
-    if (env && (fn = getenv(env))) {
-#ifdef OS_IS_WIN32
-        if (!ExpandEnvironmentStrings(fn, buf, PATH_MAX))
-            return NULL;
-        fn = buf;
-#endif
-
-        if (result)
-            *result = pa_xstrdup(fn);
-
-        return fopen(fn, mode);
-    }
-
-    if (local && pa_get_home_dir(h, sizeof(h))) {
-        FILE *f;
-        char *lfn;
-        
-        fn = lfn = pa_sprintf_malloc("%s/%s", h, local);
-
-#ifdef OS_IS_WIN32
-        if (!ExpandEnvironmentStrings(lfn, buf, PATH_MAX))
-            return NULL;
-        fn = buf;
-#endif
-
-        f = fopen(fn, mode);
-
-        if (f || errno != ENOENT) {
-            if (result)
-                *result = pa_xstrdup(fn);
-            pa_xfree(lfn);
-            return f;
-        }
-        
-        pa_xfree(lfn);
-    }
-
-    if (!global) {
-        if (result)
-            *result = NULL;
-        errno = ENOENT;
-        return NULL;
-    }
-
-#ifdef OS_IS_WIN32
-    if (!ExpandEnvironmentStrings(global, buf, PATH_MAX))
-        return NULL;
-    global = buf;
-#endif
-
-    if (result)
-        *result = pa_xstrdup(global);
-    
-    return fopen(global, mode);
-}
-                 
-/* Format the specified data as a hexademical string */
-char *pa_hexstr(const uint8_t* d, size_t dlength, char *s, size_t slength) {
-    size_t i = 0, j = 0;
-    const char hex[] = "0123456789abcdef";
-    assert(d && s && slength > 0);
-
-    while (i < dlength && j+3 <= slength) {
-        s[j++] = hex[*d >> 4];
-        s[j++] = hex[*d & 0xF];
-
-        d++;
-        i++;
-    }
-
-    s[j < slength ? j : slength] = 0;
-    return s;
-}
-
-/* Convert a hexadecimal digit to a number or -1 if invalid */
-static int hexc(char c) {
-    if (c >= '0' && c <= '9')
-        return c - '0';
-
-    if (c >= 'A' && c <= 'F')
-        return c - 'A' + 10;
-
-    if (c >= 'a' && c <= 'f')
-        return c - 'a' + 10;
-
-    return -1;
-}
-
-/* Parse a hexadecimal string as created by pa_hexstr() to a BLOB */
-size_t pa_parsehex(const char *p, uint8_t *d, size_t dlength) {
-    size_t j = 0;
-    assert(p && d);
-
-    while (j < dlength && *p) {
-        int b;
-
-        if ((b = hexc(*(p++))) < 0)
-            return (size_t) -1;
-        
-        d[j] = (uint8_t) (b << 4);
-
-        if (!*p)
-            return (size_t) -1;
-
-        if ((b = hexc(*(p++))) < 0)
-            return (size_t) -1;
-
-        d[j] |= (uint8_t) b;
-        j++;
-    }
-
-    return j;
-}
-
-/* Returns nonzero when *s starts with *pfx */
-int pa_startswith(const char *s, const char *pfx) {
-    size_t l;
-    
-    assert(s);
-    assert(pfx);
-    
-    l = strlen(pfx);
-
-    return strlen(s) >= l && strncmp(s, pfx, l) == 0;
-}
-
-/* Returns nonzero when *s ends with *sfx */
-int pa_endswith(const char *s, const char *sfx) {
-    size_t l1, l2;
-    
-    assert(s);
-    assert(sfx);
-    
-    l1 = strlen(s);
-    l2 = strlen(sfx);
-
-    return l1 >= l2 && strcmp(s+l1-l2, sfx) == 0;
-}
-
-/* if fn is null return the polypaudio run time path in s (/tmp/polypaudio)
- * if fn is non-null and starts with / return fn in s
- * otherwise append fn to the run time path and return it in s */
-char *pa_runtime_path(const char *fn, char *s, size_t l) {
-    char u[256];
-
-#ifndef OS_IS_WIN32
-    if (fn && *fn == '/')
-#else
-    if (fn && strlen(fn) >= 3 && isalpha(fn[0]) && fn[1] == ':' && fn[2] == '\\')
-#endif
-        return pa_strlcpy(s, fn, l);
-
-    if (fn)    
-        snprintf(s, l, "%s%s%c%s", PA_RUNTIME_PATH_PREFIX, pa_get_user_name(u, sizeof(u)), PATH_SEP, fn);
-    else
-        snprintf(s, l, "%s%s", PA_RUNTIME_PATH_PREFIX, pa_get_user_name(u, sizeof(u)));
-
-#ifdef OS_IS_WIN32
-    {
-        char buf[l];
-        strcpy(buf, s);
-        ExpandEnvironmentStrings(buf, s, l);
-    }
-#endif
-
-    return s;
-}
-
-/* Convert the string s to a signed integer in *ret_i */
-int pa_atoi(const char *s, int32_t *ret_i) {
-    char *x = NULL;
-    long l;
-    assert(s && ret_i);
-
-    l = strtol(s, &x, 0);
-
-    if (!x || *x)
-        return -1;
-
-    *ret_i = (int32_t) l;
-    
-    return 0;
-}
-
-/* Convert the string s to an unsigned integer in *ret_u */
-int pa_atou(const char *s, uint32_t *ret_u) {
-    char *x = NULL;
-    unsigned long l;
-    assert(s && ret_u);
-
-    l = strtoul(s, &x, 0);
-
-    if (!x || *x)
-        return -1;
-
-    *ret_u = (uint32_t) l;
-    
-    return 0;
-}