Changed default timeout to 15 seconds (from 100 seconds). Returns now if CreateProcess fails. Now closes handles if unable to allocate memory.

git-svn-id: https://svn.code.sf.net/p/nsis/code/NSIS/trunk@1258 212acab6-be3b-0410-9dea-997c60f758d6

Contrib/nsExec/nsExec.txt

@@ -3,6 +3,7 @@ nsExec
 nsExec will execute command-line based programs and capture the output
 without opening a dos box.
 
+
 Usage
 -----
 nsExec::Exec [/TIMEOUT=x] path
@@ -15,13 +16,18 @@ Both functions are the same except ExecToLog will print the output
 to the logwindow.
 
 The timeout value is optional and is used to set the time in 
-milliseconds for the dll to wait for the process to return
+milliseconds for the plugin to wait for the process to return
 before it quits.
 
+
 Return Value
 ------------
 If nsExec is unable to execute the process, it will return "error"
-on the top of the stack, else it returns "success".
+on the top of the stack, else it returns the return code from the
+executed process.
 
 
+Copyright Info
+--------------
 Copyright (c) 2002 Robert Rainwater
+Thanks to Justin Frankel and Amir Szekely

Contrib/nsExec/nsexec.c

@@ -1,3 +1,23 @@
+/*
+Copyright (c) 2002 Robert Rainwater <rrainwater@yahoo.com>
+
+This software is provided 'as-is', without any express or implied
+warranty.  In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+  1. The origin of this software must not be misrepresented; you must not
+     claim that you wrote the original software. If you use this software
+     in a product, an acknowledgment in the product documentation would be
+     appreciated but is not required.
+  2. Altered source versions must be plainly marked as such, and must not be
+     misrepresented as being the original software.
+  3. This notice may not be removed or altered from any source distribution.
+
+*/
 #include <windows.h>
 #include <commctrl.h>
 #include "../exdll/exdll.h"
@@ -8,7 +28,7 @@
 #ifndef false
 #define false FALSE
 #endif
-#define TIMEOUT 100000
+#define TIMEOUT 15000
 #define LOOPTIMEOUT 100
 
 HINSTANCE   g_hInstance;
@@ -22,7 +42,6 @@ int     g_to;
 
 
 void ExecScript(BOOL log);
-void LogMessages(const char *pStr);
 void LogMessage(const char *pStr);
 char *my_strstr(const char *string, const char *strCharSet);
 int my_atoi(char *s);
@@ -83,7 +102,6 @@ void ExecScript(BOOL log) {
         DWORD dwExit = !STILL_ACTIVE;
         static char szBuf[1024];
         static char szRet[128];
-
         HGLOBAL hUnusedBuf;
         static char *szUnusedBuf;
 
@@ -117,6 +135,7 @@ void ExecScript(BOOL log) {
             CloseHandle(newstdout);
             CloseHandle(read_stdout);
             pushstring("error");
+            return;
         }
 
         while (dwExit == STILL_ACTIVE || dwRead) {
@@ -132,11 +151,14 @@ void ExecScript(BOOL log) {
                         hUnusedBuf = GlobalReAlloc(hUnusedBuf, iReqLen+sizeof(szBuf), GHND);
                         if (!hUnusedBuf) {
                             pushstring("error");
+                            CloseHandle(pi.hThread);
+                            CloseHandle(pi.hProcess);
+                            CloseHandle(newstdout);
+                            CloseHandle(read_stdout);
                             return;
                         }
                         szUnusedBuf = (char *)GlobalLock(hUnusedBuf);
                     }
-
                     p = szUnusedBuf; // get the old left overs
                     lstrcat(p, szBuf);
 
@@ -149,8 +171,7 @@ void ExecScript(BOOL log) {
                     // If data was taken out from the unused buffer, move p contents to the start of szUnusedBuf
                     if (p != szUnusedBuf) {
                         char *p2 = szUnusedBuf;
-            while (*p) 
-              *p2++ = *p++;
+                        while (*p) *p2++ = *p++;
                         *p2 = 0;
                     }
                 }
@@ -172,8 +193,7 @@ void ExecScript(BOOL log) {
     }
 }
 
-// code I stole (err borrowed) from Tim Kosse
-// all credits/problems are his
+// Tim Kosse's LogMessage
 void LogMessage(const char *pStr) {
     LVITEM item={0};
     int nItemCount;
@@ -200,20 +220,16 @@ char *my_strstr(const char *string, const char *strCharSet) {
         s1=&((char*)string)[i];
         s2=(char*)strCharSet;
         while (*s1++ == *s2++)
-      if (!*s2)
-        return &((char*)string)[i];
+        if (!*s2) return &((char*)string)[i];
     }
     return 0;
 }
 
-int my_atoi(char *s)
-{
+int my_atoi(char *s) {
     unsigned int v=0;
-  if (*s == '0' && (s[1] == 'x' || s[1] == 'X'))
-  {
+    if (*s == '0' && (s[1] == 'x' || s[1] == 'X')) {
         s+=2;
-  for (;;)
-  {
+        for (;;) {
             int c=*s++;
             if (c >= '0' && c <= '9') c-='0';
             else if (c >= 'a' && c <= 'f') c-='a'-10;
@@ -223,11 +239,9 @@ int my_atoi(char *s)
             v+=c;
         }
     }
-  else if (*s == '0' && s[1] <= '7' && s[1] >= '0')
-  {
+    else if (*s == '0' && s[1] <= '7' && s[1] >= '0') {
         s++;
-  for (;;)
-  {
+        for (;;) {
             int c=*s++;
             if (c >= '0' && c <= '7') c-='0';
             else break;
@@ -235,12 +249,10 @@ int my_atoi(char *s)
             v+=c;
         }
     }
-  else
-  {
+    else {
         int sign=0;
         if (*s == '-') { s++; sign++; }
-  for (;;)
-  {
+        for (;;) {
             int c=*s++ - '0';
             if (c < 0 || c > 9) break;
             v*=10;