src/platform_posix.c
author Ryan C. Gordon <icculus@icculus.org>
Mon, 15 Feb 2010 14:02:36 -0500
changeset 1054 57f4af811ffb
parent 1053 a277a93ac1aa
child 1073 b45193ab2033
permissions -rw-r--r--
THIS is Christoph's PHYSFS_stat() work. I've merged some basic ideas from the other patch, which was Indy Sam's work, and cleaned up a few things.
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/*
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 * Posix-esque support routines for PhysicsFS.
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 *
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 * Please see the file LICENSE.txt in the source's root directory.
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 *
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 *  This file written by Ryan C. Gordon.
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 */
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#define __PHYSICSFS_INTERNAL__
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#include "physfs_platforms.h"
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#ifdef PHYSFS_PLATFORM_POSIX
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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 <unistd.h>
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#include <ctype.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <pwd.h>
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#ifdef PHYSFS_HAVE_LLSEEK
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#include <linux/unistd.h>
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#endif
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#include "physfs_internal.h"
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const char *__PHYSFS_platformDirSeparator = "/";
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char *__PHYSFS_platformCopyEnvironmentVariable(const char *varname)
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{
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    const char *envr = getenv(varname);
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    char *retval = NULL;
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    if (envr != NULL)
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    {
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        retval = (char *) allocator.Malloc(strlen(envr) + 1);
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        if (retval != NULL)
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            strcpy(retval, envr);
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    } /* if */
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    return retval;
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} /* __PHYSFS_platformCopyEnvironmentVariable */
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static char *getUserNameByUID(void)
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{
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    uid_t uid = getuid();
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    struct passwd *pw;
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    char *retval = NULL;
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    pw = getpwuid(uid);
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    if ((pw != NULL) && (pw->pw_name != NULL))
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    {
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        retval = (char *) allocator.Malloc(strlen(pw->pw_name) + 1);
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        if (retval != NULL)
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            strcpy(retval, pw->pw_name);
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    } /* if */
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    return retval;
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} /* getUserNameByUID */
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static char *getUserDirByUID(void)
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{
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    uid_t uid = getuid();
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    struct passwd *pw;
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    char *retval = NULL;
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    pw = getpwuid(uid);
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    if ((pw != NULL) && (pw->pw_dir != NULL))
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    {
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        retval = (char *) allocator.Malloc(strlen(pw->pw_dir) + 1);
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        if (retval != NULL)
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            strcpy(retval, pw->pw_dir);
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    } /* if */
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    return retval;
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} /* getUserDirByUID */
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char *__PHYSFS_platformGetUserName(void)
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{
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    char *retval = getUserNameByUID();
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    if (retval == NULL)
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        retval = __PHYSFS_platformCopyEnvironmentVariable("USER");
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    return retval;
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} /* __PHYSFS_platformGetUserName */
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char *__PHYSFS_platformGetUserDir(void)
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{
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    char *retval = __PHYSFS_platformCopyEnvironmentVariable("HOME");
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    if (retval == NULL)
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        retval = getUserDirByUID();
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    return retval;
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} /* __PHYSFS_platformGetUserDir */
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int __PHYSFS_platformExists(const char *fname)
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{
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    struct stat statbuf;
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    BAIL_IF_MACRO(lstat(fname, &statbuf) == -1, strerror(errno), 0);
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    return 1;
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} /* __PHYSFS_platformExists */
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int __PHYSFS_platformIsSymLink(const char *fname)
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{
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    struct stat statbuf;
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    BAIL_IF_MACRO(lstat(fname, &statbuf) == -1, strerror(errno), 0);
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    return ( (S_ISLNK(statbuf.st_mode)) ? 1 : 0 );
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} /* __PHYSFS_platformIsSymlink */
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int __PHYSFS_platformIsDirectory(const char *fname)
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{
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    struct stat statbuf;
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    BAIL_IF_MACRO(stat(fname, &statbuf) == -1, strerror(errno), 0);
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    return ( (S_ISDIR(statbuf.st_mode)) ? 1 : 0 );
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} /* __PHYSFS_platformIsDirectory */
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char *__PHYSFS_platformCvtToDependent(const char *prepend,
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                                      const char *dirName,
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                                      const char *append)
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{
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    int len = ((prepend) ? strlen(prepend) : 0) +
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              ((append) ? strlen(append) : 0) +
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              strlen(dirName) + 1;
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    char *retval = (char *) allocator.Malloc(len);
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    BAIL_IF_MACRO(retval == NULL, ERR_OUT_OF_MEMORY, NULL);
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    /* platform-independent notation is Unix-style already.  :)  */
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    if (prepend)
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        strcpy(retval, prepend);
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    else
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        retval[0] = '\0';
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    strcat(retval, dirName);
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    if (append)
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        strcat(retval, append);
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    return retval;
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} /* __PHYSFS_platformCvtToDependent */
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void __PHYSFS_platformEnumerateFiles(const char *dirname,
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   159
                                     int omitSymLinks,
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e7cd7411eadf API BREAKAGE: Changed PHYSFS_enumerateFilesCallback() to pass the originally
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                                     PHYSFS_EnumFilesCallback callback,
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   161
                                     const char *origdir,
657
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                                     void *callbackdata)
235
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{
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   164
    DIR *dir;
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   165
    struct dirent *ent;
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   166
    int bufsize = 0;
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   167
    char *buf = NULL;
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    int dlen = 0;
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   169
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    if (omitSymLinks)  /* !!! FIXME: this malloc sucks. */
235
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   171
    {
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        dlen = strlen(dirname);
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        bufsize = dlen + 256;
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        buf = (char *) allocator.Malloc(bufsize);
657
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        if (buf == NULL)
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   176
            return;
235
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        strcpy(buf, dirname);
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   178
        if (buf[dlen - 1] != '/')
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   179
        {
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            buf[dlen++] = '/';
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   181
            buf[dlen] = '\0';
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   182
        } /* if */
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   183
    } /* if */
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   184
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   185
    errno = 0;
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   186
    dir = opendir(dirname);
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   187
    if (dir == NULL)
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   188
    {
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9467e96abdf1 Replaced some Malloc and all the alloca() calls with __PHYSFS_smallAlloc(),
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   189
        allocator.Free(buf);
657
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   190
        return;
235
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   191
    } /* if */
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   192
362
ac8c846a0a66 Changed enumeration code to use __PHYSFS_addToLinkedStringList().
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   193
    while ((ent = readdir(dir)) != NULL)
235
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   194
    {
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   195
        if (strcmp(ent->d_name, ".") == 0)
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   196
            continue;
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   197
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   198
        if (strcmp(ent->d_name, "..") == 0)
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   199
            continue;
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   200
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   201
        if (omitSymLinks)
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   202
        {
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   203
            char *p;
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            int len = strlen(ent->d_name) + dlen + 1;
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   205
            if (len > bufsize)
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   206
            {
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                p = (char *) allocator.Realloc(buf, len);
235
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   208
                if (p == NULL)
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   209
                    continue;
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   210
                buf = p;
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   211
                bufsize = len;
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   212
            } /* if */
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   213
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            strcpy(buf + dlen, ent->d_name);
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   215
            if (__PHYSFS_platformIsSymLink(buf))
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   216
                continue;
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diff changeset
   217
        } /* if */
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   218
754
e7cd7411eadf API BREAKAGE: Changed PHYSFS_enumerateFilesCallback() to pass the originally
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   219
        callback(callbackdata, origdir, ent->d_name);
235
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   220
    } /* while */
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parents:
diff changeset
   221
852
9467e96abdf1 Replaced some Malloc and all the alloca() calls with __PHYSFS_smallAlloc(),
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   222
    allocator.Free(buf);
235
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   223
    closedir(dir);
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Ryan C. Gordon <icculus@icculus.org>
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   224
} /* __PHYSFS_platformEnumerateFiles */
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   225
4ad12914f652 Initial add.
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   226
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
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   227
int __PHYSFS_platformMkDir(const char *path)
4ad12914f652 Initial add.
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diff changeset
   228
{
4ad12914f652 Initial add.
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diff changeset
   229
    int rc;
4ad12914f652 Initial add.
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   230
    errno = 0;
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
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   231
    rc = mkdir(path, S_IRWXU);
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   232
    BAIL_IF_MACRO(rc == -1, strerror(errno), 0);
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   233
    return 1;
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   234
} /* __PHYSFS_platformMkDir */
4ad12914f652 Initial add.
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diff changeset
   235
4ad12914f652 Initial add.
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   236
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
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diff changeset
   237
static void *doOpen(const char *filename, int mode)
235
4ad12914f652 Initial add.
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   238
{
939
684c583cb586 Fixed PHYSFS_openAppend() on Unix.
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   239
    const int appending = (mode & O_APPEND);
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
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diff changeset
   240
    int fd;
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   241
    int *retval;
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
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   242
    errno = 0;
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   243
939
684c583cb586 Fixed PHYSFS_openAppend() on Unix.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   244
    /* O_APPEND doesn't actually behave as we'd like. */
684c583cb586 Fixed PHYSFS_openAppend() on Unix.
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   245
    mode &= ~O_APPEND;
684c583cb586 Fixed PHYSFS_openAppend() on Unix.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   246
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   247
    fd = open(filename, mode, S_IRUSR | S_IWUSR);
292
99bf6ef5639a Patched a bug where doOpen() reported success when the file couldn't be
Ryan C. Gordon <icculus@icculus.org>
parents: 259
diff changeset
   248
    BAIL_IF_MACRO(fd < 0, strerror(errno), NULL);
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   249
939
684c583cb586 Fixed PHYSFS_openAppend() on Unix.
Ryan C. Gordon <icculus@icculus.org>
parents: 852
diff changeset
   250
    if (appending)
684c583cb586 Fixed PHYSFS_openAppend() on Unix.
Ryan C. Gordon <icculus@icculus.org>
parents: 852
diff changeset
   251
    {
684c583cb586 Fixed PHYSFS_openAppend() on Unix.
Ryan C. Gordon <icculus@icculus.org>
parents: 852
diff changeset
   252
        if (lseek(fd, 0, SEEK_END) < 0)
684c583cb586 Fixed PHYSFS_openAppend() on Unix.
Ryan C. Gordon <icculus@icculus.org>
parents: 852
diff changeset
   253
        {
684c583cb586 Fixed PHYSFS_openAppend() on Unix.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   254
            close(fd);
684c583cb586 Fixed PHYSFS_openAppend() on Unix.
Ryan C. Gordon <icculus@icculus.org>
parents: 852
diff changeset
   255
            BAIL_MACRO(strerror(errno), NULL);
684c583cb586 Fixed PHYSFS_openAppend() on Unix.
Ryan C. Gordon <icculus@icculus.org>
parents: 852
diff changeset
   256
        } /* if */
684c583cb586 Fixed PHYSFS_openAppend() on Unix.
Ryan C. Gordon <icculus@icculus.org>
parents: 852
diff changeset
   257
    } /* if */
684c583cb586 Fixed PHYSFS_openAppend() on Unix.
Ryan C. Gordon <icculus@icculus.org>
parents: 852
diff changeset
   258
691
71d9affe0d8a All memory management now goes through allocation hooks instead of directly to
Ryan C. Gordon <icculus@icculus.org>
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   259
    retval = (int *) allocator.Malloc(sizeof (int));
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   260
    if (retval == NULL)
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   261
    {
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   262
        close(fd);
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   263
        BAIL_MACRO(ERR_OUT_OF_MEMORY, NULL);
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   264
    } /* if */
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   265
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   266
    *retval = fd;
1016
957c97389257 Cleaned up returns that look like function calls for my updated coding style.
Ryan C. Gordon <icculus@icculus.org>
parents: 972
diff changeset
   267
    return ((void *) retval);
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   268
} /* doOpen */
4ad12914f652 Initial add.
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parents:
diff changeset
   269
4ad12914f652 Initial add.
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diff changeset
   270
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   271
void *__PHYSFS_platformOpenRead(const char *filename)
4ad12914f652 Initial add.
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parents:
diff changeset
   272
{
1016
957c97389257 Cleaned up returns that look like function calls for my updated coding style.
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   273
    return doOpen(filename, O_RDONLY);
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   274
} /* __PHYSFS_platformOpenRead */
4ad12914f652 Initial add.
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parents:
diff changeset
   275
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   276
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   277
void *__PHYSFS_platformOpenWrite(const char *filename)
4ad12914f652 Initial add.
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parents:
diff changeset
   278
{
1016
957c97389257 Cleaned up returns that look like function calls for my updated coding style.
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diff changeset
   279
    return doOpen(filename, O_WRONLY | O_CREAT | O_TRUNC);
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   280
} /* __PHYSFS_platformOpenWrite */
4ad12914f652 Initial add.
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parents:
diff changeset
   281
4ad12914f652 Initial add.
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diff changeset
   282
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   283
void *__PHYSFS_platformOpenAppend(const char *filename)
4ad12914f652 Initial add.
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parents:
diff changeset
   284
{
1016
957c97389257 Cleaned up returns that look like function calls for my updated coding style.
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diff changeset
   285
    return doOpen(filename, O_WRONLY | O_CREAT | O_APPEND);
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   286
} /* __PHYSFS_platformOpenAppend */
4ad12914f652 Initial add.
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parents:
diff changeset
   287
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   288
4ad12914f652 Initial add.
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parents:
diff changeset
   289
PHYSFS_sint64 __PHYSFS_platformRead(void *opaque, void *buffer,
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   290
                                    PHYSFS_uint32 size, PHYSFS_uint32 count)
4ad12914f652 Initial add.
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parents:
diff changeset
   291
{
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
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parents: 249
diff changeset
   292
    int fd = *((int *) opaque);
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   293
    int max = size * count;
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   294
    int rc = read(fd, buffer, max);
235
4ad12914f652 Initial add.
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parents:
diff changeset
   295
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   296
    BAIL_IF_MACRO(rc == -1, strerror(errno), rc);
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   297
    assert(rc <= max);
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   298
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   299
    if ((rc < max) && (size > 1))
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   300
        lseek(fd, -(rc % size), SEEK_CUR); /* rollback to object boundary. */
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   301
1016
957c97389257 Cleaned up returns that look like function calls for my updated coding style.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   302
    return (rc / size);
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   303
} /* __PHYSFS_platformRead */
4ad12914f652 Initial add.
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parents:
diff changeset
   304
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   305
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   306
PHYSFS_sint64 __PHYSFS_platformWrite(void *opaque, const void *buffer,
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   307
                                     PHYSFS_uint32 size, PHYSFS_uint32 count)
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   308
{
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   309
    int fd = *((int *) opaque);
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   310
    int max = size * count;
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   311
    int rc = write(fd, (void *) buffer, max);
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   312
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   313
    BAIL_IF_MACRO(rc == -1, strerror(errno), rc);
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   314
    assert(rc <= max);
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   315
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   316
    if ((rc < max) && (size > 1))
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   317
        lseek(fd, -(rc % size), SEEK_CUR); /* rollback to object boundary. */
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   318
1016
957c97389257 Cleaned up returns that look like function calls for my updated coding style.
Ryan C. Gordon <icculus@icculus.org>
parents: 972
diff changeset
   319
    return (rc / size);
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   320
} /* __PHYSFS_platformWrite */
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   321
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   322
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   323
int __PHYSFS_platformSeek(void *opaque, PHYSFS_uint64 pos)
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   324
{
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   325
    int fd = *((int *) opaque);
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   326
259
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   327
    #ifdef PHYSFS_HAVE_LLSEEK
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   328
      unsigned long offset_high = ((pos >> 32) & 0xFFFFFFFF);
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   329
      unsigned long offset_low = (pos & 0xFFFFFFFF);
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   330
      loff_t retoffset;
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   331
      int rc = llseek(fd, offset_high, offset_low, &retoffset, SEEK_SET);
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   332
      BAIL_IF_MACRO(rc == -1, strerror(errno), 0);
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   333
    #else
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   334
      BAIL_IF_MACRO(lseek(fd, (int) pos, SEEK_SET) == -1, strerror(errno), 0);
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   335
    #endif
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   336
1016
957c97389257 Cleaned up returns that look like function calls for my updated coding style.
Ryan C. Gordon <icculus@icculus.org>
parents: 972
diff changeset
   337
    return 1;
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   338
} /* __PHYSFS_platformSeek */
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   339
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   340
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   341
PHYSFS_sint64 __PHYSFS_platformTell(void *opaque)
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   342
{
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   343
    int fd = *((int *) opaque);
259
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   344
    PHYSFS_sint64 retval;
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   345
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   346
    #ifdef PHYSFS_HAVE_LLSEEK
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   347
      loff_t retoffset;
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   348
      int rc = llseek(fd, 0, &retoffset, SEEK_CUR);
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   349
      BAIL_IF_MACRO(rc == -1, strerror(errno), -1);
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   350
      retval = (PHYSFS_sint64) retoffset;
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   351
    #else
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   352
      retval = (PHYSFS_sint64) lseek(fd, 0, SEEK_CUR);
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   353
      BAIL_IF_MACRO(retval == -1, strerror(errno), -1);
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   354
    #endif
bd65a0d74e9a 64-bit _llseek() support for the future.
Ryan C. Gordon <icculus@icculus.org>
parents: 255
diff changeset
   355
1016
957c97389257 Cleaned up returns that look like function calls for my updated coding style.
Ryan C. Gordon <icculus@icculus.org>
parents: 972
diff changeset
   356
    return retval;
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   357
} /* __PHYSFS_platformTell */
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   358
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   359
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   360
PHYSFS_sint64 __PHYSFS_platformFileLength(void *opaque)
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   361
{
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   362
    int fd = *((int *) opaque);
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   363
    struct stat statbuf;
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   364
    BAIL_IF_MACRO(fstat(fd, &statbuf) == -1, strerror(errno), -1);
1016
957c97389257 Cleaned up returns that look like function calls for my updated coding style.
Ryan C. Gordon <icculus@icculus.org>
parents: 972
diff changeset
   365
    return ((PHYSFS_sint64) statbuf.st_size);
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   366
} /* __PHYSFS_platformFileLength */
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   367
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   368
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   369
int __PHYSFS_platformEOF(void *opaque)
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   370
{
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   371
    PHYSFS_sint64 pos = __PHYSFS_platformTell(opaque);
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   372
    PHYSFS_sint64 len = __PHYSFS_platformFileLength(opaque);
1016
957c97389257 Cleaned up returns that look like function calls for my updated coding style.
Ryan C. Gordon <icculus@icculus.org>
parents: 972
diff changeset
   373
    return (pos >= len);
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   374
} /* __PHYSFS_platformEOF */
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   375
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   376
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   377
int __PHYSFS_platformFlush(void *opaque)
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   378
{
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   379
    int fd = *((int *) opaque);
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   380
    BAIL_IF_MACRO(fsync(fd) == -1, strerror(errno), 0);
1016
957c97389257 Cleaned up returns that look like function calls for my updated coding style.
Ryan C. Gordon <icculus@icculus.org>
parents: 972
diff changeset
   381
    return 1;
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   382
} /* __PHYSFS_platformFlush */
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   383
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   384
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   385
int __PHYSFS_platformClose(void *opaque)
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   386
{
251
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   387
    int fd = *((int *) opaque);
0f4615263e32 Actual POSIX calls to replace ANSI stdio routines.
Ryan C. Gordon <icculus@icculus.org>
parents: 249
diff changeset
   388
    BAIL_IF_MACRO(close(fd) == -1, strerror(errno), 0);
691
71d9affe0d8a All memory management now goes through allocation hooks instead of directly to
Ryan C. Gordon <icculus@icculus.org>
parents: 657
diff changeset
   389
    allocator.Free(opaque);
1016
957c97389257 Cleaned up returns that look like function calls for my updated coding style.
Ryan C. Gordon <icculus@icculus.org>
parents: 972
diff changeset
   390
    return 1;
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   391
} /* __PHYSFS_platformClose */
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   392
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   393
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   394
int __PHYSFS_platformDelete(const char *path)
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   395
{
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   396
    BAIL_IF_MACRO(remove(path) == -1, strerror(errno), 0);
1016
957c97389257 Cleaned up returns that look like function calls for my updated coding style.
Ryan C. Gordon <icculus@icculus.org>
parents: 972
diff changeset
   397
    return 1;
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   398
} /* __PHYSFS_platformDelete */
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   399
240
052041af9001 Added PHYSFS_getLastModTime() API. (Thanks, John Hall!)
Ryan C. Gordon <icculus@icculus.org>
parents: 235
diff changeset
   400
052041af9001 Added PHYSFS_getLastModTime() API. (Thanks, John Hall!)
Ryan C. Gordon <icculus@icculus.org>
parents: 235
diff changeset
   401
PHYSFS_sint64 __PHYSFS_platformGetLastModTime(const char *fname)
052041af9001 Added PHYSFS_getLastModTime() API. (Thanks, John Hall!)
Ryan C. Gordon <icculus@icculus.org>
parents: 235
diff changeset
   402
{
052041af9001 Added PHYSFS_getLastModTime() API. (Thanks, John Hall!)
Ryan C. Gordon <icculus@icculus.org>
parents: 235
diff changeset
   403
    struct stat statbuf;
052041af9001 Added PHYSFS_getLastModTime() API. (Thanks, John Hall!)
Ryan C. Gordon <icculus@icculus.org>
parents: 235
diff changeset
   404
    BAIL_IF_MACRO(stat(fname, &statbuf) < 0, strerror(errno), -1);
052041af9001 Added PHYSFS_getLastModTime() API. (Thanks, John Hall!)
Ryan C. Gordon <icculus@icculus.org>
parents: 235
diff changeset
   405
    return statbuf.st_mtime;
052041af9001 Added PHYSFS_getLastModTime() API. (Thanks, John Hall!)
Ryan C. Gordon <icculus@icculus.org>
parents: 235
diff changeset
   406
} /* __PHYSFS_platformGetLastModTime */
052041af9001 Added PHYSFS_getLastModTime() API. (Thanks, John Hall!)
Ryan C. Gordon <icculus@icculus.org>
parents: 235
diff changeset
   407
1054
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   408
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   409
int __PHYSFS_platformStat(const char *filename, int *exists, PHYSFS_Stat *st)
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   410
{
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   411
    struct stat statbuf;
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   412
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   413
    /* !!! FIXME: lstat()? */
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   414
    if (stat(filename, &statbuf))
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   415
    {
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   416
        if (errno == ENOENT)
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   417
        {
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   418
            *exists = 0;
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   419
            return 0;
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   420
        } /* if */
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   421
        else
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   422
        {
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   423
            BAIL_MACRO(strerror(errno), -1);
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   424
        } /* else */
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   425
    } /* if */
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   426
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   427
    if (S_ISREG(statbuf.st_mode))
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   428
    {
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   429
        st->filetype = PHYSFS_FILETYPE_REGULAR;
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   430
        st->filesize = statbuf.st_size;
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   431
    } /* if */
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   432
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   433
    else if(S_ISDIR(statbuf.st_mode))
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   434
    {
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   435
        st->filetype = PHYSFS_FILETYPE_DIRECTORY;
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   436
        st->filesize = 0;
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   437
    } /* else if */
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   438
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   439
    else
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   440
    {
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   441
        st->filetype = PHYSFS_FILETYPE_OTHER;
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   442
        st->filesize = statbuf.st_size;
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   443
    } /* else */
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   444
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   445
    st->modtime = statbuf.st_mtime;
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   446
    st->createtime = statbuf.st_ctime;
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   447
    st->accesstime = statbuf.st_atime;
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   448
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   449
    /* !!! FIXME: maybe we should just report full permissions? */
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   450
    st->readonly = access(filename, W_OK);
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   451
    return 0;
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   452
} /* __PHYSFS_platformStat */
57f4af811ffb THIS is Christoph's PHYSFS_stat() work.
Ryan C. Gordon <icculus@icculus.org>
parents: 1053
diff changeset
   453
818
e36f23f49042 Now compiles everything whether we need it or not, removing whole files with
Ryan C. Gordon <icculus@icculus.org>
parents: 809
diff changeset
   454
#endif  /* PHYSFS_PLATFORM_POSIX */
310
f8bca4a93fd5 Patched to compile on Cygwin.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
   455
235
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   456
/* end of posix.c ... */
4ad12914f652 Initial add.
Ryan C. Gordon <icculus@icculus.org>
parents:
diff changeset
   457