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commit e39e758a73c08953d477c8e024ffbd1e2edfe6a5
parent 5438d77221e5f909b2f1990721ec56ec352b932b
Author: Roberto Ierusalimschy <roberto@inf.puc-rio.br>
Date:   Fri, 20 Feb 2009 10:50:03 -0300

closing a "popen" file returns the process exit status

Diffstat:
Mliolib.c | 11++++++++---
Mluaconf.h | 8++++----
2 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/liolib.c b/liolib.c @@ -1,5 +1,5 @@ /* -** $Id: liolib.c,v 2.78 2008/02/12 16:51:03 roberto Exp roberto $ +** $Id: liolib.c,v 2.79 2008/02/12 17:05:36 roberto Exp roberto $ ** Standard I/O (and system) library ** See Copyright Notice in lua.h */ @@ -106,9 +106,14 @@ static int io_noclose (lua_State *L) { */ static int io_pclose (lua_State *L) { FILE **p = tofilep(L); - int ok = lua_pclose(L, *p); + int stat = lua_pclose(L, *p); *p = NULL; - return pushresult(L, ok, NULL); + if (stat == -1) /* error? */ + return pushresult(L, 0, NULL); + else { + lua_pushinteger(L, stat); + return 1; /* return status */ + } } diff --git a/luaconf.h b/luaconf.h @@ -1,5 +1,5 @@ /* -** $Id: luaconf.h,v 1.101 2009/02/07 12:23:15 roberto Exp roberto $ +** $Id: luaconf.h,v 1.102 2009/02/18 13:17:10 roberto Exp roberto $ ** Configuration file for Lua ** See Copyright Notice in lua.h */ @@ -695,18 +695,18 @@ union luai_Cast { double l_d; long l_l; }; #if defined(LUA_USE_POPEN) #define lua_popen(L,c,m) ((void)L, fflush(NULL), popen(c,m)) -#define lua_pclose(L,file) ((void)L, (pclose(file) != -1)) +#define lua_pclose(L,file) ((void)L, pclose(file)) #elif defined(LUA_WIN) #define lua_popen(L,c,m) ((void)L, _popen(c,m)) -#define lua_pclose(L,file) ((void)L, (_pclose(file) != -1)) +#define lua_pclose(L,file) ((void)L, _pclose(file)) #else #define lua_popen(L,c,m) ((void)((void)c, m), \ luaL_error(L, LUA_QL("popen") " not supported"), (FILE*)0) -#define lua_pclose(L,file) ((void)((void)L, file), 0) +#define lua_pclose(L,file) ((void)((void)L, file), -1) #endif