From ce5f23a1a2f64648588a0591c40053d3ffd02f9b Mon Sep 17 00:00:00 2001 From: Kelvin Sherlock Date: Sat, 16 Feb 2013 15:37:37 -0500 Subject: [PATCH] split up mpw traps into multiple files --- mpw/CMakeLists.txt | 2 +- mpw/mpw.cpp | 551 +++------------------------------------------ mpw/mpw.h | 18 ++ mpw/mpw_access.cpp | 148 ++++++++++++ mpw/mpw_close.cpp | 74 ++++++ mpw/mpw_internal.h | 16 ++ mpw/mpw_io.cpp | 153 +++++++++++++ mpw/mpw_ioctl.cpp | 230 +++++++++++++++++++ 8 files changed, 666 insertions(+), 526 deletions(-) create mode 100644 mpw/mpw_access.cpp create mode 100644 mpw/mpw_close.cpp create mode 100644 mpw/mpw_internal.h create mode 100644 mpw/mpw_io.cpp create mode 100644 mpw/mpw_ioctl.cpp diff --git a/mpw/CMakeLists.txt b/mpw/CMakeLists.txt index 49d4efb..120633d 100644 --- a/mpw/CMakeLists.txt +++ b/mpw/CMakeLists.txt @@ -4,7 +4,7 @@ set(CMAKE_CXX_FLAGS "-std=c++11 -stdlib=libc++ -Wall -g") add_definitions(-I ${CMAKE_SOURCE_DIR}/) -set(MPW_SRC mpw.cpp) +set(MPW_SRC mpw.cpp mpw_io.cpp mpw_close.cpp mpw_access.cpp mpw_ioctl.cpp) diff --git a/mpw/mpw.cpp b/mpw/mpw.cpp index 4ebcdb8..ef0c625 100644 --- a/mpw/mpw.cpp +++ b/mpw/mpw.cpp @@ -1,37 +1,34 @@ +#include "mpw.h" +#include "mpw_errno.h" +#include "mpw_internal.h" + +#include + #include #include #include +#include +#include + + #include #include #include -#include - -#include -#include -#include -#include - -#include -#include - -#include -#include - - - -#include "mpw.h" -#include "mpw_errno.h" - -namespace { - - using namespace MPW; +namespace MPW { namespace Internal { // for dup counts, etc. std::vector FDTable; +} } + + +namespace MPW +{ + using namespace Internal; + int errno_to_errno(int xerrno) { switch (xerrno) @@ -79,510 +76,6 @@ namespace { } - uint32_t ftrap_open(uint32_t name, uint32_t parm) - { - uint32_t d0; - int fd; - std::string sname; - - MPWFile f; - int nativeFlags; - std::memset(&f, 0, sizeof(f)); - - f.flags = memoryReadWord(parm); - - - nativeFlags = 0; - switch (f.flags & 0x03) - { - case 0x01: - nativeFlags = O_RDONLY; - break; - case 0x02: - nativeFlags = O_WRONLY; - break; - case 0x00: // ???? - case 0x03: - nativeFlags = O_RDWR; - break; - } - - if (f.flags & kO_APPEND) nativeFlags |= O_APPEND; - if (f.flags & kO_CREAT) nativeFlags |= O_CREAT; - if (f.flags & kO_TRUNC) nativeFlags |= O_TRUNC; - if (f.flags & kO_EXCL) nativeFlags |= O_EXCL; - - - const char *cp = (const char *)memoryPointer(name); - sname.assign(cp); - - fprintf(stderr, " open(%s, %04x)\n", sname.c_str(), f.flags); - - // TODO -- can you create a resource file like this? - - if (f.flags & kO_RSRC) - sname.append(_PATH_RSRCFORKSPEC); - - if (f.flags & kO_CREAT) - fd = ::open(sname.c_str(), nativeFlags, 0666); - else - fd = ::open(sname.c_str(), nativeFlags); - - if (fd < 0) - { - // why the 0x40... ?? - d0 = 0x40000000 | errno_to_errno(errno); - f.error = -36; // ioErr ... whatever. - f.cookie = 0; - } - else - { - d0 = 0; - f.error = 0; - f.cookie = fd; - - if (FDTable.size() <= fd) - FDTable.resize(fd + 1); - - FDTable[fd] = 1; - - - // adjust the binary flags... - // most apps are good about this but dumpobj doesn't set O_BINARY (but should) - // and MPW Assembler sets O_BINARY (but shouldn't) - - if (OS::IsTextFile(sname)) f.flags &= ~kO_BINARY; - if (OS::IsBinaryFile(sname)) f.flags |= kO_BINARY; - - if (f.flags & kO_RSRC) f.flags |= kO_BINARY; - - } - - memoryWriteWord(f.flags, parm + 0); - memoryWriteWord(f.error, parm + 2); - memoryWriteLong(f.cookie, parm + 8); - - return d0; - } - - void ftrap_access(uint16_t trap) - { - // open a file, rename a file, or delete a file. - std::string sname; - uint32_t d0; - - uint32_t sp = cpuGetAReg(7); - - // hmmm not sure if 3 or 4 parameters. - - uint32_t name = memoryReadLong(sp + 4); - uint32_t op = memoryReadLong(sp + 8); - uint32_t parm = memoryReadLong(sp + 12); - - fprintf(stderr, "%04x Access(%08x, %04x, %08x)\n", trap, name, op, parm); - - switch (op) - { - case kF_OPEN: - d0 = ftrap_open(name, parm); - break; - default: - d0 = 0x40000000 | kEINVAL; - fprintf(stderr, "faccess - unsupported op %04x\n", op); - } - - cpuSetDReg(0, d0); - } - - void ftrap_close(uint16_t trap) - { - // returns an mpw_errno - // close actually checks the error in the File Entry and converts that to unix. - // (sigh) - - uint32_t d0; - - uint32_t sp = cpuGetAReg(7); - uint32_t parm = memoryReadLong(sp + 4); - - MPWFile f; - - f.flags = memoryReadWord(parm); - f.error = memoryReadWord(parm + 2); - f.device = memoryReadLong(parm + 4); - f.cookie = memoryReadLong(parm + 8); - f.count = memoryReadLong(parm + 12); - f.buffer = memoryReadLong(parm + 16); - - - fprintf(stderr, "%04x Close(%08x)\n", trap, parm); - - if (!parm) - { - cpuSetDReg(0, kEINVAL); - return; - } - - - int fd = f.cookie; - - if (fd < 0 || fd >= FDTable.size() || !FDTable[fd]) - { - f.error = OS::notOpenErr; - d0 = kEINVAL; - } - else - { - if (--FDTable[fd] == 0) - { - ::close(fd); - f.error = 0; - d0 = 0; - } - } - - memoryWriteWord(f.error, parm + 2); - cpuSetDReg(0, 0); - } - - void ftrap_read(uint16_t trap) - { - - uint32_t d0; - - uint32_t sp = cpuGetAReg(7); - uint32_t parm = memoryReadLong(sp + 4); - - MPWFile f; - - f.flags = memoryReadWord(parm); - f.error = memoryReadWord(parm + 2); - f.device = memoryReadLong(parm + 4); - f.cookie = memoryReadLong(parm + 8); - f.count = memoryReadLong(parm + 12); - f.buffer = memoryReadLong(parm + 16); - - - fprintf(stderr, "%04x Read(%02x, %08x, %08x)\n", trap, f.cookie, f.buffer, f.count); - - d0 = 0; - - if (f.count) - { - ssize_t size; - - int fd = f.cookie; - - if (f.flags & kO_BINARY) - { - size = ::read(fd, memoryPointer(f.buffer), f.count); - } - else - { - std::unique_ptr buffer(new uint8_t[f.count]); - uint8_t *ptr = memoryPointer(f.buffer); - - size = ::read(fd, buffer.get(), f.count); - - if (size > 0) - { - std::transform(buffer.get(), buffer.get() + size, ptr, - [](uint8_t c) { return c == '\n' ? '\r' : c; } - ); - } - } - - if (size < 0) - { - //f.count = 0; - f.error = OS::ioErr; // ioErr - d0 = 0x40000000 | errno_to_errno(errno); - } - else - { - f.count -= size; - f.error = 0; - } - - // write back... - memoryWriteWord(f.error, parm + 2); - memoryWriteLong(f.count, parm + 12); - } - - cpuSetDReg(0, d0); - } - - void ftrap_write(uint16_t trap) - { - uint32_t d0; - - uint32_t sp = cpuGetAReg(7); - uint32_t parm = memoryReadLong(sp + 4); - - MPWFile f; - - f.flags = memoryReadWord(parm); - f.error = memoryReadWord(parm + 2); - f.device = memoryReadLong(parm + 4); - f.cookie = memoryReadLong(parm + 8); - f.count = memoryReadLong(parm + 12); - f.buffer = memoryReadLong(parm + 16); - - fprintf(stderr, "%04x Write(%02x, %08x, %08x)\n", trap, f.cookie, f.buffer, f.count); - - - d0 = 0; - if (f.count) - { - ssize_t size; - - int fd = f.cookie; - - if (f.flags & kO_BINARY) - { - size = ::write(fd, memoryPointer(f.buffer), f.count); - } - else - { - std::unique_ptr buffer(new uint8_t[f.count]); - uint8_t *ptr = memoryPointer(f.buffer); - - std::transform(ptr, ptr + f.count, buffer.get(), - [](uint8_t c) { return c == '\r' ? '\n' : c; } - ); - - size = ::write(fd, buffer.get(), f.count); - } - - if (size < 0) - { - //f.count = 0; - f.error = -36; // ioErr - d0 = 0x40000000 | errno_to_errno(errno); - } - else - { - // this is, apparently, correct. - f.count -= size; - f.error = 0; - } - - // write back... - memoryWriteWord(f.error, parm + 2); - memoryWriteLong(f.count, parm + 12); - } - cpuSetDReg(0, d0); - } - - uint32_t ftrap_dup(uint32_t parm, uint32_t arg) - { - uint32_t d0; - MPWFile f; - - f.flags = memoryReadWord(parm); - f.error = memoryReadWord(parm + 2); - f.device = memoryReadLong(parm + 4); - f.cookie = memoryReadLong(parm + 8); - f.count = memoryReadLong(parm + 12); - f.buffer = memoryReadLong(parm + 16); - - int fd = f.cookie; - if (fd < 0 || fd >= FDTable.size() || !FDTable[fd]) - { - d0 = kEINVAL; // & 0x40000000 ? - f.error = 0; - } - else - { - FDTable[fd]++; - d0 = 0; - f.error = 0; - } - - memoryWriteWord(f.error, parm + 2); - return d0; - } - - uint32_t ftrap_bufsize(uint32_t parm, uint32_t arg) - { - // should return the preferred buffsize in *arg - // an error will use the default size (0x400 bytes). - - MPWFile f; - - f.flags = memoryReadWord(parm); - f.error = memoryReadWord(parm + 2); - f.device = memoryReadLong(parm + 4); - f.cookie = memoryReadLong(parm + 8); - f.count = memoryReadLong(parm + 12); - f.buffer = memoryReadLong(parm + 16); - - f.error = 0; - - memoryWriteWord(f.error, parm + 2); - return kEINVAL; - } - - - uint32_t ftrap_interactive(uint32_t parm, uint32_t arg) - { - // return 0 if interactive, an error if - // non-interactive. - - uint32_t d0; - - MPWFile f; - - f.flags = memoryReadWord(parm); - f.error = memoryReadWord(parm + 2); - f.device = memoryReadLong(parm + 4); - f.cookie = memoryReadLong(parm + 8); - f.count = memoryReadLong(parm + 12); - f.buffer = memoryReadLong(parm + 16); - - f.error = 0; - - int fd = f.cookie; - - if (fd < 0 || fd >= FDTable.size() || !FDTable[fd]) - { - d0 = kEINVAL; - } - else - { - int tty = ::isatty(fd); - d0 = tty ? 0 : kEINVAL; - } - - memoryWriteWord(f.error, parm + 2); - return kEINVAL; - } - - uint32_t ftrap_iofname(uint32_t parm, uint32_t arg) - { - // return file name. - // AsmIIgs uses this... - memoryWriteWord(0, parm + 2); - return kEINVAL; - } - - uint32_t ftrap_lseek(uint32_t parm, uint32_t arg) - { - MPWFile f; - uint32_t d0; - - uint32_t whence = memoryReadLong(arg); - int32_t offset =memoryReadLong(arg + 4); - int nativeWhence = 0; - - f.flags = memoryReadWord(parm); - f.error = memoryReadWord(parm + 2); - f.device = memoryReadLong(parm + 4); - f.cookie = memoryReadLong(parm + 8); - f.count = memoryReadLong(parm + 12); - f.buffer = memoryReadLong(parm + 16); - - - int fd = f.cookie; - - - // TODO - MacOS returns eofERR and sets mark to eof - // if seeking past the eof. - // TODO - MacOS treats offset as a signed value, unix is unsigned [?] - switch (whence) - { - case kSEEK_CUR: - nativeWhence = SEEK_CUR; - break; - case kSEEK_END: - nativeWhence = SEEK_END; - break; - case kSEEK_SET: - nativeWhence = SEEK_SET; - break; - - default: - memoryWriteWord(0, parm + 2); - return kEINVAL; - } - - fprintf(stderr, " seek(%02x, %08x, %02x)\n", fd, offset, nativeWhence); - - off_t rv = ::lseek(fd, offset, nativeWhence); - if (rv < 0) - { - d0 = errno_to_errno(errno); - f.error = 0; - } - else - { - d0 = 0; - f.error = 0; - } - - memoryWriteLong(rv, arg + 4); - memoryWriteWord(f.error, parm + 2); - return d0; - } - - - void ftrap_ioctl(uint16_t trap) - { - // returns an mpw_errno in d0 [???] - - // int ioctl(int fildes, unsigned int cmd, long *arg); - uint32_t d0; - uint32_t sp = cpuGetAReg(7); - - uint32_t fd = memoryReadLong(sp + 4); - uint32_t cmd = memoryReadLong(sp + 8); - uint32_t arg = memoryReadLong(sp + 12); - - fprintf(stderr, "%04x IOCtl(%08x, %08x, %08x)\n", trap, fd, cmd, arg); - - switch (cmd) - { - case kFIOLSEEK: - d0 = ftrap_lseek(fd, arg); - break; - - case kFIODUPFD: - d0 = ftrap_dup(fd, arg); - break; - - case kFIOBUFSIZE: - d0 = ftrap_bufsize(fd, arg); - break; - - case kFIOINTERACTIVE: - d0 = ftrap_interactive(fd, arg); - break; - - case kFIOFNAME: - d0 = ftrap_iofname(fd, arg); - break; - - case kFIOREFNUM: - case kFIOSETEOF: - fprintf(stderr, "ioctl - unsupported op %04x\n", cmd); - exit(1); - break; - } - - cpuSetDReg(0, d0); - } - - void ftrap_quit(uint16_t trap) - { - fprintf(stderr, "%04x Quit()\n", trap); - cpuSetStop(true); - } - -} - -namespace MPW -{ - void Init() { FDTable.resize(16); @@ -594,6 +87,13 @@ namespace MPW // todo -- should eventually set up the mpw environment. } + + void ftrap_quit(uint16_t trap) + { + fprintf(stderr, "%04x Quit()\n", trap); + cpuSetStop(true); + } + void dispatch(uint16_t trap) { switch (trap) @@ -631,4 +131,5 @@ namespace MPW } + } diff --git a/mpw/mpw.h b/mpw/mpw.h index c3cea0d..ef12b02 100644 --- a/mpw/mpw.h +++ b/mpw/mpw.h @@ -66,8 +66,26 @@ namespace MPW { fIOCtl, }; + + + // should add argc/argv/envp... + void Init(); + + void dispatch(uint16_t trap); + + + void ftrap_quit(uint16_t trap); + + void ftrap_access(uint16_t trap); + void ftrap_close(uint16_t trap); + void ftrap_read(uint16_t trap); + void ftrap_write(uint16_t trap); + void ftrap_ioctl(uint16_t trap); + + // native errno to an MPW errno. + int errno_to_errno(int xerrno); } #endif \ No newline at end of file diff --git a/mpw/mpw_access.cpp b/mpw/mpw_access.cpp new file mode 100644 index 0000000..715e4e9 --- /dev/null +++ b/mpw/mpw_access.cpp @@ -0,0 +1,148 @@ +#include "mpw.h" +#include "mpw_internal.h" +#include "mpw_errno.h" + +#include +#include +#include + + +#include +#include +#include + +#include +#include +#include + +#include +#include +#include + +#include +#include + + + +namespace MPW +{ + using namespace Internal; + + + uint32_t ftrap_open(uint32_t name, uint32_t parm) + { + uint32_t d0; + int fd; + std::string sname; + + MPWFile f; + int nativeFlags; + std::memset(&f, 0, sizeof(f)); + + f.flags = memoryReadWord(parm); + + + nativeFlags = 0; + switch (f.flags & 0x03) + { + case 0x01: + nativeFlags = O_RDONLY; + break; + case 0x02: + nativeFlags = O_WRONLY; + break; + case 0x00: // ???? + case 0x03: + nativeFlags = O_RDWR; + break; + } + + if (f.flags & kO_APPEND) nativeFlags |= O_APPEND; + if (f.flags & kO_CREAT) nativeFlags |= O_CREAT; + if (f.flags & kO_TRUNC) nativeFlags |= O_TRUNC; + if (f.flags & kO_EXCL) nativeFlags |= O_EXCL; + + + sname = ToolBox::ReadCString(name); + + fprintf(stderr, " open(%s, %04x)\n", sname.c_str(), f.flags); + + // TODO -- can you create a resource file like this? + + if (f.flags & kO_RSRC) + sname.append(_PATH_RSRCFORKSPEC); + + if (f.flags & kO_CREAT) + fd = ::open(sname.c_str(), nativeFlags, 0666); + else + fd = ::open(sname.c_str(), nativeFlags); + + if (fd < 0) + { + // why the 0x40... ?? + d0 = 0x40000000 | errno_to_errno(errno); + f.error = -36; // ioErr ... whatever. + f.cookie = 0; + } + else + { + d0 = 0; + f.error = 0; + f.cookie = fd; + + if (FDTable.size() <= fd) + FDTable.resize(fd + 1); + + FDTable[fd] = 1; + + + // adjust the binary flags... + // most apps are good about this but dumpobj doesn't set O_BINARY (but should) + // and MPW Assembler sets O_BINARY (but shouldn't) + + if (OS::IsTextFile(sname)) f.flags &= ~kO_BINARY; + if (OS::IsBinaryFile(sname)) f.flags |= kO_BINARY; + + if (f.flags & kO_RSRC) f.flags |= kO_BINARY; + + } + + memoryWriteWord(f.flags, parm + 0); + memoryWriteWord(f.error, parm + 2); + memoryWriteLong(f.cookie, parm + 8); + + return d0; + } + + void ftrap_access(uint16_t trap) + { + // open a file, rename a file, or delete a file. + std::string sname; + uint32_t d0; + + uint32_t sp = cpuGetAReg(7); + + // hmmm not sure if 3 or 4 parameters. + + uint32_t name = memoryReadLong(sp + 4); + uint32_t op = memoryReadLong(sp + 8); + uint32_t parm = memoryReadLong(sp + 12); + + fprintf(stderr, "%04x Access(%08x, %04x, %08x)\n", trap, name, op, parm); + + switch (op) + { + case kF_OPEN: + d0 = ftrap_open(name, parm); + break; + default: + d0 = 0x40000000 | kEINVAL; + fprintf(stderr, "faccess - unsupported op %04x\n", op); + } + + cpuSetDReg(0, d0); + } + + + +} \ No newline at end of file diff --git a/mpw/mpw_close.cpp b/mpw/mpw_close.cpp new file mode 100644 index 0000000..2b54dbc --- /dev/null +++ b/mpw/mpw_close.cpp @@ -0,0 +1,74 @@ +#include "mpw.h" +#include "mpw_internal.h" +#include "mpw_errno.h" + +#include +#include +#include + +#include + +#include +#include +#include + +#include + +namespace MPW +{ + + using namespace Internal; + + void ftrap_close(uint16_t trap) + { + // returns an mpw_errno + // close actually checks the error in the File Entry and converts that to unix. + // (sigh) + + uint32_t d0; + + uint32_t sp = cpuGetAReg(7); + uint32_t parm = memoryReadLong(sp + 4); + + MPWFile f; + + f.flags = memoryReadWord(parm); + f.error = memoryReadWord(parm + 2); + f.device = memoryReadLong(parm + 4); + f.cookie = memoryReadLong(parm + 8); + f.count = memoryReadLong(parm + 12); + f.buffer = memoryReadLong(parm + 16); + + + fprintf(stderr, "%04x Close(%08x)\n", trap, parm); + + if (!parm) + { + cpuSetDReg(0, kEINVAL); + return; + } + + + int fd = f.cookie; + + if (fd < 0 || fd >= FDTable.size() || !FDTable[fd]) + { + f.error = OS::notOpenErr; + d0 = kEINVAL; + } + else + { + if (--FDTable[fd] == 0) + { + ::close(fd); + f.error = 0; + d0 = 0; + } + } + + memoryWriteWord(f.error, parm + 2); + cpuSetDReg(0, 0); + } + + +} diff --git a/mpw/mpw_internal.h b/mpw/mpw_internal.h new file mode 100644 index 0000000..d7438dd --- /dev/null +++ b/mpw/mpw_internal.h @@ -0,0 +1,16 @@ +#ifndef __MPW_INTERNAL_H__ +#define __MPW_INTERNAL_H__ + +#include + +namespace MPW +{ + namespace Internal + { + // for dup counts, etc. + extern std::vector FDTable; + } + +} + +#endif \ No newline at end of file diff --git a/mpw/mpw_io.cpp b/mpw/mpw_io.cpp new file mode 100644 index 0000000..ca247e8 --- /dev/null +++ b/mpw/mpw_io.cpp @@ -0,0 +1,153 @@ +#include "mpw.h" +#include "mpw_internal.h" + +#include +#include + +#include +#include + +#include + +#include +#include +#include + +#include + + +namespace MPW +{ + + using namespace Internal; + + void ftrap_read(uint16_t trap) + { + + uint32_t d0; + + uint32_t sp = cpuGetAReg(7); + uint32_t parm = memoryReadLong(sp + 4); + + MPWFile f; + + f.flags = memoryReadWord(parm); + f.error = memoryReadWord(parm + 2); + f.device = memoryReadLong(parm + 4); + f.cookie = memoryReadLong(parm + 8); + f.count = memoryReadLong(parm + 12); + f.buffer = memoryReadLong(parm + 16); + + + fprintf(stderr, "%04x Read(%02x, %08x, %08x)\n", trap, f.cookie, f.buffer, f.count); + + d0 = 0; + + if (f.count) + { + ssize_t size; + + int fd = f.cookie; + + if (f.flags & kO_BINARY) + { + size = ::read(fd, memoryPointer(f.buffer), f.count); + } + else + { + std::unique_ptr buffer(new uint8_t[f.count]); + uint8_t *ptr = memoryPointer(f.buffer); + + size = ::read(fd, buffer.get(), f.count); + + if (size > 0) + { + std::transform(buffer.get(), buffer.get() + size, ptr, + [](uint8_t c) { return c == '\n' ? '\r' : c; } + ); + } + } + + if (size < 0) + { + //f.count = 0; + f.error = OS::ioErr; // ioErr + d0 = 0x40000000 | errno_to_errno(errno); + } + else + { + f.count -= size; + f.error = 0; + } + + // write back... + memoryWriteWord(f.error, parm + 2); + memoryWriteLong(f.count, parm + 12); + } + + cpuSetDReg(0, d0); + } + + void ftrap_write(uint16_t trap) + { + uint32_t d0; + + uint32_t sp = cpuGetAReg(7); + uint32_t parm = memoryReadLong(sp + 4); + + MPWFile f; + + f.flags = memoryReadWord(parm); + f.error = memoryReadWord(parm + 2); + f.device = memoryReadLong(parm + 4); + f.cookie = memoryReadLong(parm + 8); + f.count = memoryReadLong(parm + 12); + f.buffer = memoryReadLong(parm + 16); + + fprintf(stderr, "%04x Write(%02x, %08x, %08x)\n", trap, f.cookie, f.buffer, f.count); + + + d0 = 0; + if (f.count) + { + ssize_t size; + + int fd = f.cookie; + + if (f.flags & kO_BINARY) + { + size = ::write(fd, memoryPointer(f.buffer), f.count); + } + else + { + std::unique_ptr buffer(new uint8_t[f.count]); + uint8_t *ptr = memoryPointer(f.buffer); + + std::transform(ptr, ptr + f.count, buffer.get(), + [](uint8_t c) { return c == '\r' ? '\n' : c; } + ); + + size = ::write(fd, buffer.get(), f.count); + } + + if (size < 0) + { + //f.count = 0; + f.error = -36; // ioErr + d0 = 0x40000000 | errno_to_errno(errno); + } + else + { + // this is, apparently, correct. + f.count -= size; + f.error = 0; + } + + // write back... + memoryWriteWord(f.error, parm + 2); + memoryWriteLong(f.count, parm + 12); + } + cpuSetDReg(0, d0); + } + +} \ No newline at end of file diff --git a/mpw/mpw_ioctl.cpp b/mpw/mpw_ioctl.cpp new file mode 100644 index 0000000..8c5d894 --- /dev/null +++ b/mpw/mpw_ioctl.cpp @@ -0,0 +1,230 @@ +#include "mpw.h" +#include "mpw_internal.h" +#include "mpw_errno.h" + +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include + +#include +#include +#include + +#include + + + + +namespace MPW +{ + using namespace Internal; + + uint32_t ftrap_dup(uint32_t parm, uint32_t arg) + { + uint32_t d0; + MPWFile f; + + f.flags = memoryReadWord(parm); + f.error = memoryReadWord(parm + 2); + f.device = memoryReadLong(parm + 4); + f.cookie = memoryReadLong(parm + 8); + f.count = memoryReadLong(parm + 12); + f.buffer = memoryReadLong(parm + 16); + + int fd = f.cookie; + if (fd < 0 || fd >= FDTable.size() || !FDTable[fd]) + { + d0 = kEINVAL; // & 0x40000000 ? + f.error = 0; + } + else + { + FDTable[fd]++; + d0 = 0; + f.error = 0; + } + + memoryWriteWord(f.error, parm + 2); + return d0; + } + + uint32_t ftrap_bufsize(uint32_t parm, uint32_t arg) + { + // should return the preferred buffsize in *arg + // an error will use the default size (0x400 bytes). + + MPWFile f; + + f.flags = memoryReadWord(parm); + f.error = memoryReadWord(parm + 2); + f.device = memoryReadLong(parm + 4); + f.cookie = memoryReadLong(parm + 8); + f.count = memoryReadLong(parm + 12); + f.buffer = memoryReadLong(parm + 16); + + f.error = 0; + + memoryWriteWord(f.error, parm + 2); + return kEINVAL; + } + + + uint32_t ftrap_interactive(uint32_t parm, uint32_t arg) + { + // return 0 if interactive, an error if + // non-interactive. + + uint32_t d0; + + MPWFile f; + + f.flags = memoryReadWord(parm); + f.error = memoryReadWord(parm + 2); + f.device = memoryReadLong(parm + 4); + f.cookie = memoryReadLong(parm + 8); + f.count = memoryReadLong(parm + 12); + f.buffer = memoryReadLong(parm + 16); + + f.error = 0; + + int fd = f.cookie; + + if (fd < 0 || fd >= FDTable.size() || !FDTable[fd]) + { + d0 = kEINVAL; + } + else + { + int tty = ::isatty(fd); + d0 = tty ? 0 : kEINVAL; + } + + memoryWriteWord(f.error, parm + 2); + return kEINVAL; + } + + uint32_t ftrap_iofname(uint32_t parm, uint32_t arg) + { + // return file name. + // AsmIIgs uses this... + memoryWriteWord(0, parm + 2); + return kEINVAL; + } + + uint32_t ftrap_lseek(uint32_t parm, uint32_t arg) + { + MPWFile f; + uint32_t d0; + + uint32_t whence = memoryReadLong(arg); + int32_t offset =memoryReadLong(arg + 4); + int nativeWhence = 0; + + f.flags = memoryReadWord(parm); + f.error = memoryReadWord(parm + 2); + f.device = memoryReadLong(parm + 4); + f.cookie = memoryReadLong(parm + 8); + f.count = memoryReadLong(parm + 12); + f.buffer = memoryReadLong(parm + 16); + + + int fd = f.cookie; + + + // TODO - MacOS returns eofERR and sets mark to eof + // if seeking past the eof. + // TODO - MacOS treats offset as a signed value, unix is unsigned [?] + switch (whence) + { + case kSEEK_CUR: + nativeWhence = SEEK_CUR; + break; + case kSEEK_END: + nativeWhence = SEEK_END; + break; + case kSEEK_SET: + nativeWhence = SEEK_SET; + break; + + default: + memoryWriteWord(0, parm + 2); + return kEINVAL; + } + + fprintf(stderr, " seek(%02x, %08x, %02x)\n", fd, offset, nativeWhence); + + off_t rv = ::lseek(fd, offset, nativeWhence); + if (rv < 0) + { + d0 = errno_to_errno(errno); + f.error = 0; + } + else + { + d0 = 0; + f.error = 0; + } + + memoryWriteLong(rv, arg + 4); + memoryWriteWord(f.error, parm + 2); + return d0; + } + + + void ftrap_ioctl(uint16_t trap) + { + // returns an mpw_errno in d0 [???] + + // int ioctl(int fildes, unsigned int cmd, long *arg); + uint32_t d0; + uint32_t sp = cpuGetAReg(7); + + uint32_t fd = memoryReadLong(sp + 4); + uint32_t cmd = memoryReadLong(sp + 8); + uint32_t arg = memoryReadLong(sp + 12); + + fprintf(stderr, "%04x IOCtl(%08x, %08x, %08x)\n", trap, fd, cmd, arg); + + switch (cmd) + { + case kFIOLSEEK: + d0 = ftrap_lseek(fd, arg); + break; + + case kFIODUPFD: + d0 = ftrap_dup(fd, arg); + break; + + case kFIOBUFSIZE: + d0 = ftrap_bufsize(fd, arg); + break; + + case kFIOINTERACTIVE: + d0 = ftrap_interactive(fd, arg); + break; + + case kFIOFNAME: + d0 = ftrap_iofname(fd, arg); + break; + + case kFIOREFNUM: + case kFIOSETEOF: + fprintf(stderr, "ioctl - unsupported op %04x\n", cmd); + exit(1); + break; + } + + cpuSetDReg(0, d0); + } + + +} \ No newline at end of file