--- a/misc/physfs/src/platform_unix.c Wed Feb 27 16:12:22 2013 +0100
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,344 +0,0 @@
-/*
- * Unix support routines for PhysicsFS.
- *
- * Please see the file LICENSE.txt in the source's root directory.
- *
- * This file written by Ryan C. Gordon.
- */
-
-#define __PHYSICSFS_INTERNAL__
-#include "physfs_platforms.h"
-
-#ifdef PHYSFS_PLATFORM_UNIX
-
-#include <ctype.h>
-#include <unistd.h>
-#include <sys/types.h>
-#include <pwd.h>
-#include <sys/stat.h>
-#include <sys/param.h>
-#include <dirent.h>
-#include <time.h>
-#include <errno.h>
-
-#if PHYSFS_PLATFORM_LINUX && !defined(PHYSFS_HAVE_MNTENT_H)
-#define PHYSFS_HAVE_MNTENT_H 1
-#elif PHYSFS_PLATFORM_SOLARIS && !defined(PHYSFS_HAVE_SYS_MNTTAB_H)
-#define PHYSFS_HAVE_SYS_MNTTAB_H 1
-#elif PHYSFS_PLATFORM_BSD && !defined(PHYSFS_HAVE_SYS_UCRED_H)
-#define PHYSFS_HAVE_SYS_UCRED_H 1
-#endif
-
-#ifdef PHYSFS_HAVE_SYS_UCRED_H
-# ifdef PHYSFS_HAVE_MNTENT_H
-# undef PHYSFS_HAVE_MNTENT_H /* don't do both... */
-# endif
-# include <sys/mount.h>
-# include <sys/ucred.h>
-#endif
-
-#ifdef PHYSFS_HAVE_MNTENT_H
-#include <mntent.h>
-#endif
-
-#ifdef PHYSFS_HAVE_SYS_MNTTAB_H
-#include <sys/mnttab.h>
-#endif
-
-#include "physfs_internal.h"
-
-int __PHYSFS_platformInit(void)
-{
- return 1; /* always succeed. */
-} /* __PHYSFS_platformInit */
-
-
-int __PHYSFS_platformDeinit(void)
-{
- return 1; /* always succeed. */
-} /* __PHYSFS_platformDeinit */
-
-
-/* Stub version for platforms without CD-ROM support. */
-void __PHYSFS_platformDetectAvailableCDs(PHYSFS_StringCallback cb, void *data)
-{
-#if (defined PHYSFS_NO_CDROM_SUPPORT)
- /* no-op. */
-
-#elif (defined PHYSFS_HAVE_SYS_UCRED_H)
- int i;
- struct statfs *mntbufp = NULL;
- int mounts = getmntinfo(&mntbufp, MNT_WAIT);
-
- for (i = 0; i < mounts; i++)
- {
- int add_it = 0;
-
- if (strcmp(mntbufp[i].f_fstypename, "iso9660") == 0)
- add_it = 1;
- else if (strcmp( mntbufp[i].f_fstypename, "cd9660") == 0)
- add_it = 1;
-
- /* add other mount types here */
-
- if (add_it)
- cb(data, mntbufp[i].f_mntonname);
- } /* for */
-
-#elif (defined PHYSFS_HAVE_MNTENT_H)
- FILE *mounts = NULL;
- struct mntent *ent = NULL;
-
- mounts = setmntent("/etc/mtab", "r");
- BAIL_IF_MACRO(mounts == NULL, PHYSFS_ERR_IO, /*return void*/);
-
- while ( (ent = getmntent(mounts)) != NULL )
- {
- int add_it = 0;
- if (strcmp(ent->mnt_type, "iso9660") == 0)
- add_it = 1;
- else if (strcmp(ent->mnt_type, "udf") == 0)
- add_it = 1;
-
- /* !!! FIXME: these might pick up floppy drives, right? */
- else if (strcmp(ent->mnt_type, "auto") == 0)
- add_it = 1;
- else if (strcmp(ent->mnt_type, "supermount") == 0)
- add_it = 1;
-
- /* !!! FIXME: udf? automount? */
-
- /* add other mount types here */
-
- if (add_it)
- cb(data, ent->mnt_dir);
- } /* while */
-
- endmntent(mounts);
-
-#elif (defined PHYSFS_HAVE_SYS_MNTTAB_H)
- FILE *mounts = fopen(MNTTAB, "r");
- struct mnttab ent;
-
- BAIL_IF_MACRO(mounts == NULL, PHYSFS_ERR_IO, /*return void*/);
- while (getmntent(mounts, &ent) == 0)
- {
- int add_it = 0;
- if (strcmp(ent.mnt_fstype, "hsfs") == 0)
- add_it = 1;
-
- /* add other mount types here */
-
- if (add_it)
- cb(data, ent.mnt_mountp);
- } /* while */
-
- fclose(mounts);
-
-#else
-#error Unknown platform. Should have defined PHYSFS_NO_CDROM_SUPPORT, perhaps.
-#endif
-} /* __PHYSFS_platformDetectAvailableCDs */
-
-
-/*
- * See where program (bin) resides in the $PATH specified by (envr).
- * returns a copy of the first element in envr that contains it, or NULL
- * if it doesn't exist or there were other problems. PHYSFS_SetError() is
- * called if we have a problem.
- *
- * (envr) will be scribbled over, and you are expected to allocator.Free() the
- * return value when you're done with it.
- */
-static char *findBinaryInPath(const char *bin, char *envr)
-{
- size_t alloc_size = 0;
- char *exe = NULL;
- char *start = envr;
- char *ptr;
-
- assert(bin != NULL);
- assert(envr != NULL);
-
- do
- {
- size_t size;
- size_t binlen;
-
- ptr = strchr(start, ':'); /* find next $PATH separator. */
- if (ptr)
- *ptr = '\0';
-
- binlen = strlen(bin);
- size = strlen(start) + binlen + 2;
- if (size > alloc_size)
- {
- char *x = (char *) allocator.Realloc(exe, size);
- if (!x)
- {
- if (exe != NULL)
- allocator.Free(exe);
- BAIL_MACRO(PHYSFS_ERR_OUT_OF_MEMORY, NULL);
- } /* if */
-
- alloc_size = size;
- exe = x;
- } /* if */
-
- /* build full binary path... */
- strcpy(exe, start);
- if ((exe[0] == '\0') || (exe[strlen(exe) - 1] != '/'))
- strcat(exe, "/");
- strcat(exe, bin);
-
- if (access(exe, X_OK) == 0) /* Exists as executable? We're done. */
- {
- exe[size - binlen] = '\0'; /* chop off filename, leave '/' */
- return exe;
- } /* if */
-
- start = ptr + 1; /* start points to beginning of next element. */
- } while (ptr != NULL);
-
- if (exe != NULL)
- allocator.Free(exe);
-
- return NULL; /* doesn't exist in path. */
-} /* findBinaryInPath */
-
-
-static char *readSymLink(const char *path)
-{
- ssize_t len = 64;
- ssize_t rc = -1;
- char *retval = NULL;
-
- while (1)
- {
- char *ptr = (char *) allocator.Realloc(retval, (size_t) len);
- if (ptr == NULL)
- break; /* out of memory. */
- retval = ptr;
-
- rc = readlink(path, retval, len);
- if (rc == -1)
- break; /* not a symlink, i/o error, etc. */
-
- else if (rc < len)
- {
- retval[rc] = '\0'; /* readlink doesn't null-terminate. */
- return retval; /* we're good to go. */
- } /* else if */
-
- len *= 2; /* grow buffer, try again. */
- } /* while */
-
- if (retval != NULL)
- allocator.Free(retval);
- return NULL;
-} /* readSymLink */
-
-
-char *__PHYSFS_platformCalcBaseDir(const char *argv0)
-{
- char *retval = NULL;
- const char *envr = NULL;
-
- /*
- * Try to avoid using argv0 unless forced to. If there's a Linux-like
- * /proc filesystem, you can get the full path to the current process from
- * the /proc/self/exe symlink.
- */
- retval = readSymLink("/proc/self/exe");
- if (retval == NULL)
- {
- /* older kernels don't have /proc/self ... try PID version... */
- const unsigned long long pid = (unsigned long long) getpid();
- char path[64];
- const int rc = (int) snprintf(path,sizeof(path),"/proc/%llu/exe",pid);
- if ( (rc > 0) && (rc < sizeof(path)) )
- retval = readSymLink(path);
- } /* if */
-
- if (retval != NULL) /* chop off filename. */
- {
- char *ptr = strrchr(retval, '/');
- if (ptr != NULL)
- *(ptr+1) = '\0';
- else /* shouldn't happen, but just in case... */
- {
- allocator.Free(retval);
- retval = NULL;
- } /* else */
- } /* if */
-
- /* No /proc/self/exe, but we have an argv[0] we can parse? */
- if ((retval == NULL) && (argv0 != NULL))
- {
- /* fast path: default behaviour can handle this. */
- if (strchr(argv0, '/') != NULL)
- return NULL; /* higher level parses out real path from argv0. */
-
- /* If there's no dirsep on argv0, then look through $PATH for it. */
- envr = getenv("PATH");
- if (envr != NULL)
- {
- char *path = (char *) __PHYSFS_smallAlloc(strlen(envr) + 1);
- BAIL_IF_MACRO(!path, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
- strcpy(path, envr);
- retval = findBinaryInPath(argv0, path);
- __PHYSFS_smallFree(path);
- } /* if */
- } /* if */
-
- if (retval != NULL)
- {
- /* try to shrink buffer... */
- char *ptr = (char *) allocator.Realloc(retval, strlen(retval) + 1);
- if (ptr != NULL)
- retval = ptr; /* oh well if it failed. */
- } /* if */
-
- return retval;
-} /* __PHYSFS_platformCalcBaseDir */
-
-
-char *__PHYSFS_platformCalcPrefDir(const char *org, const char *app)
-{
- /*
- * We use XDG's base directory spec, even if you're not on Linux.
- * This isn't strictly correct, but the results are relatively sane
- * in any case.
- *
- * http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
- */
- const char *envr = getenv("XDG_DATA_HOME");
- const char *append = "/";
- char *retval = NULL;
- size_t len = 0;
-
- if (!envr)
- {
- /* You end up with "$HOME/.local/share/Game Name 2" */
- envr = __PHYSFS_getUserDir();
- BAIL_IF_MACRO(!envr, ERRPASS, NULL); /* oh well. */
- append = ".local/share/";
- } /* if */
-
- len = strlen(envr) + strlen(append) + strlen(app) + 2;
- retval = (char *) allocator.Malloc(len);
- BAIL_IF_MACRO(!retval, PHYSFS_ERR_OUT_OF_MEMORY, NULL);
- snprintf(retval, len, "%s%s%s/", envr, append, app);
- return retval;
-} /* __PHYSFS_platformCalcPrefDir */
-
-
-int __PHYSFS_platformSetDefaultAllocator(PHYSFS_Allocator *a)
-{
- return 0; /* just use malloc() and friends. */
-} /* __PHYSFS_platformSetDefaultAllocator */
-
-#endif /* PHYSFS_PLATFORM_UNIX */
-
-/* end of unix.c ... */
-