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fix popen errors

This commit is contained in:
takase1121 2020-10-10 13:02:58 +08:00
parent b5ed40e2f2
commit 09eac7708c
1 changed files with 4 additions and 3 deletions
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7
src/api/system.c
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@ -417,8 +417,8 @@ static int f_popen(lua_State *L) {
CloseHandle(pi.hProcess); CloseHandle(pi.hProcess);
CloseHandle(pi.hThread); CloseHandle(pi.hThread);
#else #else
FILE* pipe = popen(cmd, "rb"); FILE* pipe = popen(cmd, "r");
if (pipe == NULL) { luaL_error(L, "Failed to start process"); } if (pipe == NULL) { luaL_error(L, "Failed to start process: %d", errno); }
size_t read; size_t read;
while(!feof(pipe)) { while(!feof(pipe)) {
@ -426,7 +426,8 @@ static int f_popen(lua_State *L) {
read = fread(b, sizeof(char), LUAL_BUFFERSIZE, pipe); read = fread(b, sizeof(char), LUAL_BUFFERSIZE, pipe);
luaL_addsize(&stdoutBuf, read); luaL_addsize(&stdoutBuf, read);
} }
exitCode = WEXITSTATUS(pclose(pipe)); int status = pclose(pipe);
if (WIFEXITED(status)) { exitCode = WEXITSTATUS(status); }
#endif #endif
luaL_pushresult(&stdoutBuf); luaL_pushresult(&stdoutBuf);
lua_pushnumber(L, exitCode); lua_pushnumber(L, exitCode);