Make rpmscript machinery chroot-aware

Normally all scriptlets are of course chrooted when the installation is,
but we're about to get an exception to that. No functional changes, just
adding necessary infrastructure for the next steps.

lib/rpmscript.c

@@ -17,6 +17,7 @@
 #include "lib/rpmscript.h"
 #include "rpmio/rpmio_internal.h"
 
+#include "lib/rpmchroot.h"
 #include "lib/rpmplugins.h"     /* rpm plugins hooks */
 
 #include "debug.h"
@@ -35,6 +36,7 @@ struct rpmScript_s {
     char *body;			/* script body */
     char *descr;		/* description for logging */
     rpmscriptFlags flags;	/* flags to control operation */
+    int chroot;			/* chrooted script? */
     struct scriptNextFileFunc_s *nextFileFunc;  /* input function */
 };
 
@@ -108,6 +110,21 @@ static int next_file(lua_State *L)
     return 1;
 }
 
+int rpmScriptChrootIn(rpmScript script)
+{
+    int rc = 0;
+    if (script->chroot)
+	rc = rpmChrootIn();
+    return rc;
+}
+
+int rpmScriptChrootOut(rpmScript script)
+{
+    int rc = 0;
+    if (script->chroot)
+	rc = rpmChrootOut();
+    return rc;
+}
 /**
  * Run internal Lua script.
  */
@@ -510,6 +527,7 @@ static rpmScript rpmScriptNew(Header h, rpmTagVal tag, const char *body,
     script->type = getScriptType(tag);
     script->flags = getDefFlags(tag) | flags;
     script->body = (body != NULL) ? xstrdup(body) : NULL;
+    script->chroot = 1;
     rasprintf(&script->descr, "%%%s%s(%s)", prefix, tag2sln(tag), nevra);
 
     /* macros need to be expanded before possible queryformat */
@@ -645,6 +663,19 @@ rpmScript rpmScriptFromTriggerTag(Header h, rpmTagVal triggerTag,
     return script;
 }
 
+rpmScript rpmScriptFromArgv(Header h, rpmTagVal scriptTag, ARGV_t argv, rpmscriptFlags flags, int chroot)
+{
+    rpmScript script = NULL;
+
+    if (h && argv) {
+	char *body = argvJoin(argv, " ");
+	script = rpmScriptNew(h, scriptTag, body, flags, "");
+	script->chroot = chroot;
+	free(body);
+    }
+    return script;
+}
+
 rpmScript rpmScriptFromTag(Header h, rpmTagVal scriptTag)
 {
     rpmScript script = NULL;

lib/rpmscript.h

@@ -19,6 +19,7 @@ enum rpmscriptTypes_e {
     RPMSCRIPT_POSTTRANS		= (1 << 9),
     RPMSCRIPT_PREUNTRANS	= (1 << 10),
     RPMSCRIPT_POSTUNTRANS	= (1 << 11),
+    RPMSCRIPT_SYSUSERS		= (1 << 12),
     /* ... */
     RPMSCRIPT_VERIFY		= (1 << 24),
 };
@@ -59,6 +60,9 @@ rpmscriptTriggerModes triggerMode(rpmTagVal tag);
 RPM_GNUC_INTERNAL
 rpmTagVal triggertag(rpmsenseFlags sense);
 
+RPM_GNUC_INTERNAL
+rpmScript rpmScriptFromArgv(Header h, rpmTagVal scriptTag, ARGV_t argv, rpmscriptFlags flags, int chroot);
+
 RPM_GNUC_INTERNAL
 rpmScript rpmScriptFromTag(Header h, rpmTagVal scriptTag);
 
@@ -85,6 +89,13 @@ rpmscriptFlags rpmScriptFlags(rpmScript script);
 RPM_GNUC_INTERNAL
 void rpmScriptSetNextFileFunc(rpmScript script, nextfilefunc func,
 			    void *param);
+
+RPM_GNUC_INTERNAL
+int rpmScriptChrootIn(rpmScript script);
+
+RPM_GNUC_INTERNAL
+int rpmScriptChrootOut(rpmScript script);
+
 #ifdef __cplusplus
 }
 #endif

lib/transaction.c

@@ -1702,7 +1702,7 @@ rpmRC runScript(rpmts ts, rpmte te, Header h, ARGV_const_t prefixes,
     FD_t sfd = NULL;
     int warn_only = !(rpmScriptFlags(script) & RPMSCRIPT_FLAG_CRITICAL);
 
-    if (rpmChrootIn())
+    if (rpmScriptChrootIn(script))
 	return RPMRC_FAIL;
 
     /* Create a temporary transaction element for triggers from rpmdb */
@@ -1736,7 +1736,7 @@ rpmRC runScript(rpmts ts, rpmte te, Header h, ARGV_const_t prefixes,
 	rpmtsNotify(ts, te, RPMCALLBACK_SCRIPT_ERROR, stag, rc);
     }
 
-    rpmChrootOut();
+    rpmScriptChrootOut(script);
 
     if (te != xte)
 	rpmteFree(te);