diff options
Diffstat (limited to 'com32')
| -rw-r--r-- | com32/lua/src/liolib.c | 40 |
1 files changed, 29 insertions, 11 deletions
diff --git a/com32/lua/src/liolib.c b/com32/lua/src/liolib.c index 3f27395d..cf9dca22 100644 --- a/com32/lua/src/liolib.c +++ b/com32/lua/src/liolib.c @@ -18,12 +18,18 @@ #include "lauxlib.h" #include "lualib.h" - +#ifdef SYSLINUX + #define NO_TMP_FILE 1 + #define NO_READ_NUMBER 1 + #define NO_TEST_EOF 1 + #define NO_CLEAR_ERR 1 + #define NO_F_SEEK 1 + #define NO_F_SETVBUF 1 +#endif #define IO_INPUT 1 #define IO_OUTPUT 2 - static const char *const fnames[] = {"input", "output"}; @@ -180,7 +186,7 @@ static int io_popen (lua_State *L) { } -#ifndef SYSLINUX +#ifndef NO_TMP_FILE static int io_tmpfile (lua_State *L) { FILE **pf = newfile(L); *pf = tmpfile(); @@ -271,7 +277,7 @@ static int io_lines (lua_State *L) { ** ======================================================= */ -#ifndef SYSLINUX +#ifndef NO_READ_NUMBER /* No fscanf() and thus no read_number() */ static int read_number (lua_State *L, FILE *f) { lua_Number d; if (fscanf(f, LUA_NUMBER_SCAN, &d) == 1) { @@ -283,8 +289,9 @@ static int read_number (lua_State *L, FILE *f) { return 0; /* read fails */ } } +#endif - +#ifndef NO_TEST_EOF /* no buffering -> no ungetc() -> no EOF test */ static int test_eof (lua_State *L, FILE *f) { int c = getc(f); ungetc(c, f); @@ -315,7 +322,6 @@ static int read_line (lua_State *L, FILE *f) { } } -#ifndef SYSLINUX /* Not used */ static int read_chars (lua_State *L, FILE *f, size_t n) { size_t rlen; /* how much to read */ size_t nr; /* number of chars actually read */ @@ -337,7 +343,9 @@ static int g_read (lua_State *L, FILE *f, int first) { int nargs = lua_gettop(L) - 1; int success; int n; +#ifndef NO_CLEAR_ERR clearerr(f); +#endif if (nargs == 0) { /* no arguments? */ success = read_line(L, f); n = first+1; /* to return 1 result */ @@ -348,14 +356,22 @@ static int g_read (lua_State *L, FILE *f, int first) { for (n = first; nargs-- && success; n++) { if (lua_type(L, n) == LUA_TNUMBER) { size_t l = (size_t)lua_tointeger(L, n); +#ifndef NO_TEST_EOF success = (l == 0) ? test_eof(L, f) : read_chars(L, f, l); +#else /* we don't have test_eof defined */ + success = (l == 0) ? 1 : read_chars(L, f, l); +#endif } else { const char *p = lua_tostring(L, n); luaL_argcheck(L, p && p[0] == '*', n, "invalid option"); switch (p[1]) { case 'n': /* number */ +#ifndef NO_READ_NUMBER success = read_number(L, f); +#else + return luaL_argerror(L, n, "\"*number\" not supported"); +#endif break; case 'l': /* line */ success = read_line(L, f); @@ -388,7 +404,6 @@ static int io_read (lua_State *L) { static int f_read (lua_State *L) { return g_read(L, tofile(L), 2); } -#endif static int io_readline (lua_State *L) { @@ -441,7 +456,7 @@ static int f_write (lua_State *L) { return g_write(L, tofile(L), 2); } -#ifndef SYSLINUX +#ifndef NO_F_SEEK static int f_seek (lua_State *L) { static const int mode[] = {SEEK_SET, SEEK_CUR, SEEK_END}; static const char *const modenames[] = {"set", "cur", "end", NULL}; @@ -456,8 +471,9 @@ static int f_seek (lua_State *L) { return 1; } } +#endif - +#ifndef NO_F_SETVBUF static int f_setvbuf (lua_State *L) { static const int mode[] = {_IONBF, _IOFBF, _IOLBF}; static const char *const modenames[] = {"no", "full", "line", NULL}; @@ -488,8 +504,8 @@ static const luaL_Reg iolib[] = { {"open", io_open}, {"output", io_output}, {"popen", io_popen}, -#ifndef SYSLINUX {"read", io_read}, +#ifndef NO_TMP_FILE {"tmpfile", io_tmpfile}, #endif {"type", io_type}, @@ -502,9 +518,11 @@ static const luaL_Reg flib[] = { {"close", io_close}, {"flush", f_flush}, {"lines", f_lines}, -#ifndef SYSLINUX {"read", f_read}, +#ifndef NO_F_SEEK {"seek", f_seek}, +#endif +#ifndef NO_F_SETVBUF {"setvbuf", f_setvbuf}, #endif {"write", f_write}, |