8 files changed, 1129 insertions, 0 deletions

diff --git a/command_line/CmdLine/Src/OSLib/FileHandles.c b/command_line/CmdLine/Src/OSLib/FileHandles.c
index e69de29..4609d77 100644
--- a/command_line/CmdLine/Src/OSLib/FileHandles.c
+++ b/command_line/CmdLine/Src/OSLib/FileHandles.c
@@ -0,0 +1,29 @@
+#include "oslib.h"
+
+static int OS_LoadFileHandle(OSFileHandle *hand) {
+
+}
+
+static int OS_WriteFileHandle(OSFileHandle *hand) {
+
+}
+
+int OS_NewFileHandle(const OSSpec *spec, OSHandle *src, Boolean writeable, OSFileHandle *hand) {
+
+}
+
+int OS_LockFileHandle(OSFileHandle *hand, Ptr *ptr, UInt32 *size) {
+
+}
+
+int OS_UnlockFileHandle(OSFileHandle *hand) {
+
+}
+
+int OS_FreeFileHandle(OSFileHandle *hand) {
+
+}
+
+void OS_GetFileHandleSpec(const OSFileHandle *hand, OSSpec *spec) {
+
+}
diff --git a/command_line/CmdLine/Src/OSLib/Generic.c b/command_line/CmdLine/Src/OSLib/Generic.c
index e69de29..4430790 100644
--- a/command_line/CmdLine/Src/OSLib/Generic.c
+++ b/command_line/CmdLine/Src/OSLib/Generic.c
@@ -0,0 +1,93 @@
+#include "oslib.h"
+
+static char wildname[63];
+static char wilddir[255];
+static OSOpenedDir wilddirref;
+static OSSpec wildmatch;
+char STSbuf[256];
+
+int WildCardMatch(const char *wild, const char *name) {
+    char next;
+    const char *prev;
+}
+
+OSSpec *OS_MatchPath(const char *path) {
+    char filename[64];
+    Boolean isfile;
+    OSSpec spec;
+    const char *nptr;
+}
+
+char *OS_GetFileNamePtr(char *path) {
+    char *ptr;
+}
+
+char *OS_GetDirName(const OSPathSpec *spec, char *buf, int size) {
+    char *path;
+    char *pptr;
+}
+
+int OS_MakeSpec2(const char *path, const char *filename, OSSpec *spec) {
+    char bpath[256];
+    char *eptr;
+    int pthlen;
+    int fnlen;
+}
+
+int OS_MakeSpecWithPath(OSPathSpec *path, const char *filename, Boolean noRelative, OSSpec *spec) {
+    Boolean relpath;
+    char buf[256];
+    char *mptr;
+    char *eptr;
+}
+
+int OS_NameSpecChangeExtension(OSNameSpec *spec, const char *ext, Boolean append) {
+    char tmp[64];
+    char *per;
+}
+
+int OS_NameSpecSetExtension(OSNameSpec *spec, const char *ext) {
+    char tmp[64];
+    char *per;
+}
+
+char *OS_CompactPaths(char *buf, const char *p, const char *n, int size) {
+    int plen;
+    int nlen;
+    char *ptr;
+    int bidx;
+}
+
+char *OS_SpecToStringRelative(const OSSpec *spec, const OSPathSpec *cwdspec, char *path, int size) {
+    char fullbuf[256];
+    char *full;
+    char cwfbuf[256];
+    char *cwd;
+    OSPathSpec mycwdspec;
+    char *pptr;
+}
+
+int OS_FindFileInPath(const char *filename, const char *plist, OSSpec *spec) {
+    char *next;
+    char path[256];
+    int err;
+}
+
+int OS_FindProgram(const char *filename, OSSpec *spec) {
+    char *plist;
+    int err;
+    char temp[256];
+}
+
+int OS_CopyHandle(OSHandle *hand, OSHandle *copy) {
+    int err;
+    UInt32 sz;
+    void *f;
+    void *t;
+}
+
+int OS_AppendHandle(OSHandle *hand, const void *data, UInt32 len) {
+    int err;
+    UInt32 sz;
+    void *buffer;
+}
diff --git a/command_line/CmdLine/Src/OSLib/MacFileTypes.c b/command_line/CmdLine/Src/OSLib/MacFileTypes.c
index e69de29..9d18723 100644
--- a/command_line/CmdLine/Src/OSLib/MacFileTypes.c
+++ b/command_line/CmdLine/Src/OSLib/MacFileTypes.c
@@ -0,0 +1,29 @@
+#include "oslib.h"
+
+void OS_AddFileTypeMappingList(OSFileTypeMappings **list, OSFileTypeMappingList *entry) {
+
+}
+
+void OS_UseFileTypeMappings(OSFileTypeMappings *list) {
+
+}
+
+void OS_MacType_To_OSType(OSType mactype, uOSTypePair *type) {
+
+}
+
+int OS_SetMacFileType(const OSSpec *spec, OSType mactype) {
+
+}
+
+Boolean OS_GetMacFileTypeMagic(const char *buffer, int count, OSType *mactype) {
+
+}
+
+int OS_GetMacFileType(const OSSpec *spec, OSType *mactype) {
+
+}
+
+int OS_SetMacFileCreatorAndType(const OSSpec *spec, OSType creator, OSType mactype) {
+
+}
diff --git a/command_line/CmdLine/Src/OSLib/MacSpecs.c b/command_line/CmdLine/Src/OSLib/MacSpecs.c
index e69de29..8648324 100644
--- a/command_line/CmdLine/Src/OSLib/MacSpecs.c
+++ b/command_line/CmdLine/Src/OSLib/MacSpecs.c
@@ -0,0 +1,25 @@
+#include "oslib.h"
+
+int OS_OSPathSpec_To_VolDir(const OSPathSpec *spec, SInt16 *vRefNum, SInt32 *dirID) {
+
+}
+
+int OS_OSSpec_To_FSSpec(const OSSpec *spec, FSSpec *fss) {
+
+}
+
+int OS_VolDir_To_OSNameSpec(SInt16 vRefNum, SInt32 dirID, OSNameSpec *spec, SInt32 *parID) {
+
+}
+
+int OS_VolDir_To_OSPathSpec(SInt16 vRefNum, SInt32 dirID, OSPathSpec *spec) {
+
+}
+
+int OS_FSSpec_To_OSSpec(const FSSpec *fss, OSSpec *spec) {
+
+}
+
+int OS_GetRsrcOSSpec(const OSSpec *spec, OSSpec *rspec, Boolean create) {
+
+}
diff --git a/command_line/CmdLine/Src/OSLib/MemUtils.c b/command_line/CmdLine/Src/OSLib/MemUtils.c
index e69de29..4eb611c 100644
--- a/command_line/CmdLine/Src/OSLib/MemUtils.c
+++ b/command_line/CmdLine/Src/OSLib/MemUtils.c
@@ -0,0 +1,21 @@
+#include "oslib.h"
+
+void *xmalloc(const char *what, int size) {
+
+}
+
+void *xcalloc(const char *what, int size) {
+
+}
+
+void *xrealloc(const char *what, void *old, int size) {
+
+}
+
+char *xstrdup(const char *str) {
+
+}
+
+void xfree(void *ptr) {
+
+}
diff --git a/command_line/CmdLine/Src/OSLib/Posix.c b/command_line/CmdLine/Src/OSLib/Posix.c
index e69de29..0711559 100644
--- a/command_line/CmdLine/Src/OSLib/Posix.c
+++ b/command_line/CmdLine/Src/OSLib/Posix.c
@@ -0,0 +1,866 @@
+#include "oslib.h"
+#include <dirent.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/times.h>
+#include <time.h>
+#include <utime.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+enum {
+    OSErrNeg2 = -2
+};
+
+static char *lastdlerr;
+static char intbuf[256];
+enum { MAX_PATH = 256 };
+
+#define CONVERT_SPEC(spec, pathbuf) \
+do {                                \
+int _plen = strlen((spec)->path.s);  \
+int _nlen = strlen((spec)->name.s);  \
+if (_plen + _nlen >= sizeof(pathbuf)) return 63; \
+memcpy((pathbuf), (spec)->path.s, _plen); \
+memcpy((pathbuf) + _plen, (spec)->name.s, _nlen + 1); \
+} while (0)
+
+#define CONVERT_PATHSPEC(spec, pathbuf) \
+do {                                    \
+int _plen = strlen((spec)->s);          \
+if (_plen >= sizeof(pathbuf)) return 63;\
+memcpy((pathbuf), (spec)->s, _plen + 1);\
+if (_plen > 1) {                        \
+if ((pathbuf)[_plen - 1] == '/')        \
+(pathbuf)[_plen - 1] = 0;               \
+}                                       \
+} while (0)
+
+const char *OS_GetErrText(int err) {
+    if (err == -2) {
+        return !lastdlerr ? "Shared library function failed" : lastdlerr;
+    } else {
+        return strerror(err);
+    }
+}
+
+int OS_InitProgram(int *pArgc, const char ***pArgv) {
+    return 0;
+}
+
+int OS_TermProgram() {
+    return 0;
+}
+
+uOSTypePair OS_TEXTTYPE = {0666};
+
+int OS_Create(const OSSpec *spec, const uOSTypePair *type) {
+    int h;
+    int err;
+    CONVERT_SPEC(spec, intbuf);
+    h = open(intbuf, O_CREAT | O_TRUNC, type->perm);
+    if (h < 0)
+        return errno;
+    close(h);
+
+    err = OS_SetFileType(spec, type);
+    return (err < 1) ? EPERM : 0;
+}
+
+int OS_Status(const OSSpec *spec) {
+    struct stat st;
+    CONVERT_SPEC(spec, intbuf);
+    if (stat(intbuf, &st))
+        return errno;
+    else
+        return 0;
+}
+
+int OS_GetFileType(const OSSpec *spec, uOSTypePair *type) {
+    struct stat st;
+    CONVERT_SPEC(spec, intbuf);
+    if (stat(intbuf, &st) < 0)
+        return errno;
+    type->perm = st.st_mode;
+    return 0;
+}
+
+int OS_SetFileType(const OSSpec *spec, const uOSTypePair *type) {
+    int err, oldmask;
+
+    CONVERT_SPEC(spec, intbuf);
+    oldmask = umask(0) & UF_SETTABLE;
+    err = chmod(intbuf, type->perm & ~oldmask);
+    umask(oldmask);
+
+    if (err < 0)
+        return errno;
+    return 0;
+}
+
+int OS_GetFileTime(const OSSpec *spec, time_t *crtm, time_t *chtm) {
+    struct stat st;
+    CONVERT_SPEC(spec, intbuf);
+    if (stat(intbuf, &st) < 0)
+        return errno;
+    if (crtm)
+        *crtm = st.st_ctimespec.tv_sec;
+    if (chtm)
+        *chtm = st.st_mtimespec.tv_sec;
+    return 0;
+}
+
+int OS_SetFileTime(const OSSpec *spec, const time_t *crtm, const time_t *chtm) {
+    struct utimbuf buf;
+    struct stat st;
+    CONVERT_SPEC(spec, intbuf);
+    if (stat(intbuf, &st) < 0)
+        return errno;
+    buf.actime = chtm ? *chtm : st.st_atimespec.tv_sec;
+    buf.modtime = crtm ? *crtm : st.st_mtimespec.tv_sec;
+    if (utime(intbuf, &buf) < 0)
+        return errno;
+    return 0;
+}
+
+int OS_Open(const OSSpec *spec, OSOpenMode mode, int *ref) {
+    static int modetrans[4] = {
+            O_RDONLY,
+            O_WRONLY,
+            O_RDWR,
+            O_RDONLY | O_APPEND
+    };
+    CONVERT_SPEC(spec, intbuf);
+    *ref = open(intbuf, modetrans[mode]);
+    if (*ref < 0) {
+        *ref = -1;
+        return errno;
+    }
+    return 0;
+}
+
+int OS_Write(int ref, const void *buffer, UInt32 *length) {
+    struct stat st;
+    UInt32 pos;
+
+    if (fstat(ref, &st) < 0)
+        return errno;
+
+    pos = lseek(ref, 0, SEEK_CUR);
+    if (pos > st.st_size && !*length) {
+        lseek(ref, -1, SEEK_CUR);
+        if (write(ref, "", 1) != 1) {
+            *length = 0;
+            return errno;
+        }
+    }
+
+    *length = write(ref, buffer, *length);
+    if (((SInt32) *length) < 0)
+        return errno;
+    return 0;
+}
+
+int OS_Read(int ref, void *buffer, UInt32 *length) {
+    *length = read(ref, buffer, *length);
+    if (((SInt32) *length) < 0)
+        return errno;
+    return 0;
+}
+
+int OS_Seek(int ref, OSSeekMode how, SInt32 offset) {
+    static int howtrans[3] = {
+            SEEK_CUR,
+            SEEK_SET,
+            SEEK_END
+    };
+
+    return (lseek(ref, offset, howtrans[how]) < 0) ? errno : 0;
+}
+
+int OS_Tell(int ref, SInt32 *offset) {
+    *offset = lseek(ref, 0, SEEK_CUR);
+    if (*offset < 0)
+        return errno;
+    else
+        return 0;
+}
+
+int OS_Close(int ref) {
+    if (ref == -1)
+        return EBADF;
+
+    if (close(ref))
+        return errno;
+    else
+        return 0;
+}
+
+int OS_GetSize(int ref, UInt32 *length) {
+    struct stat st;
+    if (fstat(ref, &st) < 0) {
+        return errno;
+    } else {
+        *length = st.st_size;
+        return 0;
+    }
+}
+
+int OS_SetSize(int ref, UInt32 size) {
+    if (ftruncate(ref, size))
+        return errno;
+    else
+        return 0;
+}
+
+int OS_Delete(const OSSpec *spec) {
+    CONVERT_SPEC(spec, intbuf);
+    if (unlink(intbuf))
+        return errno;
+    else
+        return 0;
+}
+
+int OS_Rename(const OSSpec *oldspec, const OSSpec *newspec) {
+    char newbuf[256];
+    CONVERT_SPEC(newspec, newbuf);
+    CONVERT_SPEC(oldspec, intbuf);
+    return rename(intbuf, newbuf) ? errno : 0;
+}
+
+int OS_Mkdir(const OSSpec *spec) {
+    CONVERT_SPEC(spec, intbuf);
+    if (mkdir(intbuf, 0777))
+        return errno;
+    else
+        return 0;
+}
+
+int OS_Rmdir(const OSPathSpec *spec) {
+    CONVERT_PATHSPEC(spec, intbuf);
+    if (rmdir(intbuf))
+        return errno;
+    else
+        return 0;
+}
+
+int OS_Chdir(const OSPathSpec *spec) {
+    CONVERT_PATHSPEC(spec, intbuf);
+    if (chdir(intbuf))
+        return errno;
+    else
+        return 0;
+}
+
+int OS_GetCWD(OSPathSpec *spec) {
+    char *ptr;
+    if (!getcwd(spec->s, sizeof(spec->s)))
+        return errno;
+
+    ptr = &spec->s[strlen(spec->s)];
+    if (ptr[-1] != '/')
+        strcpy(ptr, "/");
+    return 0;
+}
+
+extern char **environ;
+int OS_Execute(OSSpec *spec, char **argv, char **envp, const char *stdoutfile, const char *stderrfile, int *exitcode) {
+    int svstdout;
+    int svstderr;
+    pid_t kidpid;
+    int status;
+    int err; // not in stabs but i think this exists...?
+
+    if (stdoutfile) {
+        svstdout = dup(1);
+        close(1);
+        if (open(stdoutfile, O_CREAT|O_TRUNC|O_WRONLY, 0666) < 0) {
+            status = errno;
+            dup2(svstdout, 1);
+            close(svstdout);
+            return status;
+        }
+    }
+
+    if (stderrfile) {
+        svstderr = dup(2);
+        close(2);
+        if (open(stderrfile, O_CREAT|O_TRUNC|O_WRONLY, 0666) < 0) {
+            status = errno;
+            dup2(svstderr, 2);
+            close(svstderr);
+            return status;
+        }
+    }
+
+    kidpid = fork();
+    if (!kidpid) {
+        if (execve(argv[0], argv, (envp && envp[0]) ? envp : environ) < 0)
+            exit(-1);
+        return EINVAL;
+    } else {
+        if (stdoutfile) {
+            dup2(svstdout, 1);
+            close(svstdout);
+        }
+        if (stderrfile) {
+            dup2(svstderr, 2);
+            close(svstderr);
+        }
+        *exitcode = 0;
+
+        err = (waitpid(kidpid, &status, 0) <= 0) ? errno : 0;
+
+        if (!(status & 0x7F))
+            *exitcode = status >> 8;
+
+        if ((status & 0x7F) != 0x7F && (status & 0x7F) != 0)
+            *exitcode = -(status & 0x7F);
+
+        return err;
+    }
+}
+
+int OS_IsLegalPath(const char *path) {
+    const char *scan = path;
+    int pthlen;
+    int fnlen;
+
+    pthlen = 0;
+    fnlen = 0;
+
+    while (*scan) {
+        if (*scan == '/')
+            fnlen = 0;
+        else
+            fnlen++;
+        ++pthlen;
+        if (fnlen > 63 || pthlen > 255)
+            return ENAMETOOLONG;
+        //if ((fnlen = (*scan == '/') ? 0 : (fnlen + 1)) > 63 || ++pthlen > 255)
+        //    return ENAMETOOLONG;
+        ++scan;
+    }
+
+    return 0;
+}
+
+int OS_IsFullPath(const char *path) {
+    return path[0] == '/';
+}
+
+char *OS_GetDirPtr(char *path) {
+    return path;
+}
+
+static int OS_CompactPath(const char *src, char *dst) {
+    char buf[256];
+    char *bptr;
+    char *to;
+    char *from;
+    char *start;
+    char *brk;
+}
+
+int OS_EqualPath(const char *a, const char *b) {
+    return !strcmp(a, b);
+}
+
+int OS_CanonPath(char *src, char *dst) {
+    int idx;
+
+    if (strlen(src) > 255)
+        return ENAMETOOLONG;
+
+    if (!dst)
+        dst = src;
+
+    for (idx = 0; src[idx]; idx++) {
+        if (src[idx] == '\\')
+            dst[idx] = '/';
+        else
+            dst[idx] = src[idx];
+    }
+
+    dst[idx] = 0;
+    return 0;
+}
+
+int OS_MakeSpec(const char *path, OSSpec *spec, Boolean *isfile) {
+    char tmp[256];
+    struct stat st;
+    char *ptr;
+    int len;
+    int err;
+    char *end;
+    char orig[256];
+
+    spec->name.s[0] = 0;
+    spec->path.s[0] = 0;
+    err = OS_CanonPath((char *) path, tmp);
+    if (err)
+        return err;
+
+    if (!OS_IsFullPath(tmp)) {
+        strcpy(orig, tmp);
+        if (!getcwd(tmp, sizeof(tmp)))
+            return errno;
+
+        ptr = tmp + strlen(tmp) - 1;
+        if (ptr[0] != '/') {
+            ptr[1] = '/';
+            ptr[2] = 0;
+            ptr += 2;
+        }
+
+        if (((ptr - tmp) + strlen(orig)) >= 256)
+            return ENAMETOOLONG;
+
+        strcpy(ptr, orig);
+    } else {
+        if (strlen(tmp) >= 256)
+            return ENAMETOOLONG;
+    }
+
+    err = OS_CompactPath(tmp, 0);
+    if (err)
+        return err;
+    err = OS_IsLegalPath(tmp);
+    if (err)
+        return err;
+
+    if (!stat(tmp, &st)) {
+        ptr = tmp + strlen(tmp);
+        if (ptr[-1] == '/')
+            ptr--;
+        if ((st.st_mode & S_IFMT) == S_IFDIR) {
+            if (isfile)
+                *isfile = 0;
+            ptr[0] = '/';
+            ptr++;
+        } else {
+            if (isfile)
+                *isfile = 1;
+        }
+        *ptr = 0;
+    } else {
+        if (errno != ENOENT)
+            return errno;
+        if (isfile)
+            *isfile = 1;
+    }
+
+    ptr = strrchr(tmp, '/') + 1;
+    len = ptr - tmp;
+    if (len >= 256) {
+        spec->path.s[0] = 0;
+        return ENAMETOOLONG;
+    }
+
+    memcpy(spec->path.s, tmp, len);
+    spec->path.s[len] = 0;
+
+    len = strlen(ptr);
+    if (len >= 64) {
+        spec->name.s[0] = 0;
+        return ENAMETOOLONG;
+    }
+
+    memcpy(spec->name.s, ptr, len);
+    spec->name.s[len] = 0;
+
+    return 0;
+}
+
+int OS_MakeFileSpec(const char *path, OSSpec *spec) {
+    Boolean isfile;
+    int err;
+
+    err = OS_MakeSpec(path, spec, &isfile);
+    if (err)
+        return err;
+    else
+        return (isfile != 0) ? 0 : EISDIR;
+}
+
+int OS_MakePathSpec(const char *vol, const char *dir, OSPathSpec *spec) {
+    Boolean isfile;
+    OSSpec tmp;
+    int err;
+    char path[256];
+
+    if (((vol ? strlen(vol) : 0) + (dir ? strlen(dir) : 0) + 2) > 256)
+        return ENAMETOOLONG;
+
+    sprintf(path,
+            "%s%s%s",
+            vol ? (strchr("/\\:", vol[0]) ? "" : "/") : "",
+            vol ? vol : "",
+            dir ? dir : ""
+            );
+
+    err = OS_MakeSpec(path, &tmp, &isfile);
+    strcpy(spec->s, tmp.path.s);
+    if (err)
+        return err;
+
+    if (isfile)
+        return !OS_Status(&tmp) ? ENOTDIR : ENOENT;
+
+    return 0;
+}
+
+int OS_MakeNameSpec(const char *name, OSNameSpec *spec) {
+    int len;
+
+    len = strlen(name);
+    spec->s[0] = 0;
+    if (len > 63)
+        return ENAMETOOLONG;
+    if (strchr(name, '/'))
+        return EISDIR;
+    if (strlen(name) > 63)
+        return ENAMETOOLONG;
+    memcpy(spec->s, name, len + 1);
+    return 0;
+}
+
+int OS_GetRootSpec(OSPathSpec *spec) {
+    strcpy(spec->s, "/");
+    return 0;
+}
+
+char *OS_SpecToString(const OSSpec *spec, char *path, int size) {
+    int plen;
+    int nlen;
+
+    if (!size)
+        size = 256;
+
+    if (!path) {
+        path = malloc(size);
+        if (!path)
+            return 0;
+    }
+
+    plen = strlen(spec->path.s);
+    nlen = strlen(spec->name.s);
+    if ((plen + nlen) >= size) {
+        if (plen >= size) {
+            nlen = 0;
+            plen = size - 1;
+        } else {
+            nlen = (size - plen) - 1;
+        }
+    }
+
+    memcpy(path, spec->path.s, plen);
+    memcpy(&path[plen], spec->name.s, nlen);
+    path[plen + nlen] = 0;
+    return path;
+}
+
+char *OS_PathSpecToString(const OSPathSpec *pspec, char *path, int size) {
+    int plen;
+
+    if (!size)
+        size = 256;
+
+    if (!path) {
+        path = malloc(size);
+        if (!path)
+            return 0;
+    }
+
+    plen = strlen(pspec->s);
+    if (plen >= size)
+        plen = size - 1;
+
+    memcpy(path, pspec->s, plen);
+    path[plen] = 0;
+    return path;
+}
+
+char *OS_NameSpecToString(const OSNameSpec *nspec, char *name, int size) {
+    int nlen;
+
+    if (!size)
+        size = 64;
+
+    if (!name) {
+        name = malloc(size);
+        if (!name)
+            return 0;
+    }
+
+    nlen = strlen(nspec->s);
+    if (nlen >= size)
+        nlen = size - 1;
+
+    memcpy(name, nspec->s, nlen);
+    name[nlen] = 0;
+    return name;
+}
+
+int OS_SizeOfPathSpec(const OSPathSpec *spec) {
+    return strlen(spec->s) + 1;
+}
+
+int OS_SizeOfNameSpec(const OSNameSpec *spec) {
+    return strlen(spec->s) + 1;
+}
+
+int OS_EqualSpec(const OSSpec *a, const OSSpec *b) {
+    return OS_EqualPathSpec(&a->path, &b->path) && OS_EqualNameSpec(&a->name, &b->name);
+}
+
+int OS_EqualPathSpec(const OSPathSpec *a, const OSPathSpec *b) {
+    return !strcmp(a->s, b->s);
+}
+
+int OS_EqualNameSpec(const OSNameSpec *a, const OSNameSpec *b) {
+    return !strcmp(a->s, b->s);
+}
+
+int OS_IsDir(const OSSpec *spec) {
+    struct stat st;
+
+    if (!OS_SpecToString(spec, intbuf, sizeof(intbuf)))
+        return 0;
+    if (stat(intbuf, &st) < 0)
+        return 0;
+    return ((st.st_mode & S_IFMT) == S_IFDIR);
+}
+
+int OS_IsFile(const OSSpec *spec) {
+    struct stat st;
+
+    if (!OS_SpecToString(spec, intbuf, sizeof(intbuf)))
+        return 0;
+    if (stat(intbuf, &st) < 0)
+        return 0;
+    return ((st.st_mode & S_IFMT) != S_IFDIR);
+}
+
+int OS_IsLink(const OSSpec *spec) {
+    struct stat st;
+    char *ptr;
+
+    if (!OS_SpecToString(spec, intbuf, sizeof(intbuf)))
+        return 0;
+
+    ptr = intbuf + strlen(intbuf) - 1;
+    if (*ptr == '/')
+        *ptr = 0;
+
+    if (lstat(intbuf, &st) < 0)
+        return 0;
+
+    return ((st.st_mode & S_IFMT) == S_IFLNK);
+}
+
+int OS_ResolveLink(const OSSpec *link, OSSpec *target) {
+    char fn[64];
+    char path[256];
+    int len;
+
+    if (!OS_SpecToString(link, intbuf, sizeof(intbuf)))
+        return ENAMETOOLONG;
+
+    len = readlink(intbuf, fn, sizeof(fn));
+    if (len < 0)
+        return errno;
+    fn[len] = 0;
+
+    sprintf(path, "%s%s", (fn[0] != '/') ? link->path.s : "", fn);
+    return OS_MakeSpec(path, target, 0);
+}
+
+int OS_OpenDir(const OSPathSpec *spec, OSOpenedDir *ref) {
+    DIR *dptr;
+
+    CONVERT_PATHSPEC(spec, intbuf);
+    dptr = opendir(intbuf);
+    if (!dptr) {
+        ref->dir = 0;
+        return errno;
+    }
+
+    ref->spec = *spec;
+    ref->dir = dptr;
+    return 0;
+}
+
+int OS_ReadDir(OSOpenedDir *ref, OSSpec *spec, char *filename, Boolean *isfile) {
+    struct dirent *de;
+    char fn[256];
+    int err;
+    int len;
+
+    do {
+        de = readdir(ref->dir);
+        if (!de)
+            return ENOENT;
+    } while (!strcmp(de->d_name, ".") || !strcmp(de->d_name, "..") || (strlen(ref->spec.s) + strlen(de->d_name) >= 256));
+
+    len = strlen(ref->spec.s);
+    strncpy(fn, ref->spec.s, 255);
+    if (len < 256) {
+        strncpy(&fn[len], de->d_name, 255 - len);
+        fn[255] = 0;
+    } else {
+        return ENAMETOOLONG;
+    }
+
+    strncpy(filename, de->d_name, 63);
+    filename[63] = 0;
+
+    return OS_MakeSpec(fn, spec, isfile);
+}
+
+int OS_CloseDir(OSOpenedDir *ref) {
+    if (ref->dir)
+        return closedir(ref->dir);
+    else
+        return 0;
+}
+
+UInt32 OS_GetMilliseconds() {
+    struct tms tms;
+    return times(&tms) * 1000 / CLOCKS_PER_SEC;
+}
+
+void OS_GetTime(time_t *p) {
+    time(p);
+}
+
+int OS_NewHandle(UInt32 size, OSHandle *hand) {
+    hand->addr = 0;
+    hand->used = size;
+    hand->size = (size + 256) & ~255;
+    hand->addr = malloc(hand->size);
+    return !hand->addr ? ENOMEM : 0;
+}
+
+int OS_ResizeHandle(OSHandle *hand, UInt32 size) {
+    UInt32 nsize;
+    void *naddr;
+
+    nsize = (size + 256) & ~255;
+    naddr = realloc(hand->addr, nsize);
+    if (!naddr)
+        return ENOMEM;
+
+    hand->addr = naddr;
+    hand->size = nsize;
+    hand->used = size;
+    return 0;
+}
+
+void *OS_LockHandle(OSHandle *hand) {
+    return hand->addr;
+}
+
+void OS_UnlockHandle(OSHandle *hand) {
+}
+
+int OS_FreeHandle(OSHandle *hand) {
+    if (!hand->addr)
+        return ENOMEM;
+
+    free(hand->addr);
+    hand->size = 0;
+    hand->used = 0;
+    hand->addr = 0;
+    return 0;
+}
+
+int OS_GetHandleSize(OSHandle *hand, UInt32 *size) {
+    if (hand->addr) {
+        *size = hand->used;
+        return 0;
+    } else {
+        *size = 0;
+        return ENOMEM;
+    }
+}
+
+void OS_InvalidateHandle(OSHandle *hand) {
+    hand->addr = 0;
+    hand->used = 0;
+}
+
+Boolean OS_ValidHandle(OSHandle *hand) {
+    return (hand && hand->addr);
+}
+
+OSErr OS_MacError(int err) {
+    switch (err) {
+        case 0: return noErr;
+        case ENOENT /*2*/: return fnfErr;
+        case EFAULT /*14*/:
+        case EINVAL /*22*/: return paramErr;
+        case ENOTDIR /*20*/: return dirNFErr;
+        case EISDIR /*21*/: return notAFileErr;
+        case ENAMETOOLONG /*63*/: return bdNamErr;
+        case EBUSY /*16*/: return memLockedErr;
+        case E2BIG /*7*/:
+        case ENOMEM /*12*/: return memFullErr;
+        case EACCES /*13*/: return permErr;
+        case EIO /*5*/: return ioErr;
+        case EEXIST /*17*/: return dupFNErr;
+        case EMFILE /*24*/: return tmfoErr;
+        case EFBIG /*27*/: return fsDataTooBigErr;
+        case EBADF /*9*/: return rfNumErr;
+        case EINTR /*4*/: return abortErr;
+        default: return (OSErr) (0xFFFF8000 | err);
+    }
+}
+
+void OS_TimeToMac(time_t sectm, UInt32 *secs) {
+    struct tm *tmrec;
+    int years;
+    int ydays;
+
+    tmrec = localtime(&sectm);
+    // this is horrendous lol
+}
+
+void OS_MacToTime(UInt32 secs, time_t *sectm) {
+    struct tm tmrec;
+    int month;
+}
+
+SInt16 OS_RefToMac(int ref) {
+    //return (ref >= -1) ? (ref + 1) : ref;
+    // wtf is going on here augh
+}
+
+int OS_MacToRef(SInt16 refnum) {
+    return (refnum >= 0) ? (refnum - 1) : -1;
+}
+
+int OS_OpenLibrary(const char *a, void **lib) {
+    *lib = 0;
+    lastdlerr = "No support for shared libraries";
+    return OSErrNeg2;
+}
+
+int OS_GetLibrarySymbol(void *a, void *b, void **sym) {
+    *sym = 0;
+    lastdlerr = "No support for shared libraries";
+    return OSErrNeg2;
+}
+
+int OS_CloseLibrary(void *a) {
+    lastdlerr = "No support for shared libraries";
+    return OSErrNeg2;
+}
+
+int OS_LoadMacResourceFork(const OSSpec *spec, void **file_data, SInt32 *file_len) {
+    return ENOENT;
+}
+
+int OS_IsMultiByte(const char *str, int offset) {
+    return 0;
+}
diff --git a/command_line/CmdLine/Src/OSLib/StringExtras.c b/command_line/CmdLine/Src/OSLib/StringExtras.c
index e69de29..04ef6b4 100644
--- a/command_line/CmdLine/Src/OSLib/StringExtras.c
+++ b/command_line/CmdLine/Src/OSLib/StringExtras.c
@@ -0,0 +1,17 @@
+#include "oslib.h"
+
+char *strcatn(char *d, const char *s, SInt32 max) {
+
+}
+
+char *strcpyn(char *d, const char *s, SInt32 len, SInt32 max) {
+
+}
+
+int ustrcmp(const char *src, const char *dst) {
+
+}
+
+int ustrncmp(const char *src, const char *dst, UInt32 len) {
+
+}
diff --git a/command_line/CmdLine/Src/OSLib/StringUtils.c b/command_line/CmdLine/Src/OSLib/StringUtils.c
index e69de29..5f0d5bd 100644
--- a/command_line/CmdLine/Src/OSLib/StringUtils.c
+++ b/command_line/CmdLine/Src/OSLib/StringUtils.c
@@ -0,0 +1,49 @@
+#include "oslib.h"
+
+StringPtr _pstrcpy(StringPtr dst, ConstStringPtr src) {
+
+}
+
+void _pstrcat(StringPtr dst, ConstStringPtr src) {
+
+}
+
+void _pstrcharcat(StringPtr to, char ch) {
+
+}
+
+void pstrncpy(StringPtr to, ConstStringPtr from, int max) {
+
+}
+
+void pstrncat(StringPtr to, ConstStringPtr append, int max) {
+
+}
+
+int pstrcmp(ConstStringPtr a, ConstStringPtr b) {
+
+}
+
+int pstrchr(ConstStringPtr str, char find) {
+
+}
+
+void c2pstrcpy(StringPtr dst, const char *src) {
+
+}
+
+void p2cstrcpy(char *dst, ConstStringPtr src) {
+
+}
+
+char *mvprintf(char *mybuf, unsigned int len, const char *format, va_list va) {
+
+}
+
+char *mprintf(char *mybuf, unsigned int len, const char *format, ...) {
+
+}
+
+int HPrintF(Handle text, const char *format, ...) {
+
+}