X-Git-Url: http://git.ozlabs.org/?p=ccan;a=blobdiff_plain;f=tools%2Ftools.c;h=dd7243c2c6a7ff6d213a291642e700a661e90627;hp=20fcc9bb5bfba7fd142e5735e3a8841c9c3e50b2;hb=1f45ec04761cd99011445c6d41cd64a3951f77e0;hpb=e73b0b37186b158369dc70652edae6706cba8133

diff --git a/tools/tools.c b/tools/tools.c
index 20fcc9bb..dd7243c2 100644
--- a/tools/tools.c
+++ b/tools/tools.c
@@ -143,35 +143,35 @@ char *run_with_timeout(const void *ctx, const char *cmd,
 	return ret;
 }
 
-/* Returns output if command fails. */
-char *run_command(const void *ctx, unsigned int *time_ms, const char *fmt, ...)
+/* Tallocs *output off ctx; return false if command fails. */
+bool run_command(const void *ctx, unsigned int *time_ms, char **output,
+		 const char *fmt, ...)
 {
 	va_list ap;
-	char *cmd, *contents;
+	char *cmd;
 	bool ok;
 	unsigned int default_time = default_timeout_ms;
 
 	if (!time_ms)
 		time_ms = &default_time;
-	else if (*time_ms == 0)
-		return talloc_strdup(ctx, "\n== TIMED OUT ==\n");
+	else if (*time_ms == 0) {
+		*output = talloc_strdup(ctx, "\n== TIMED OUT ==\n");
+		return false;
+	}
 
 	va_start(ap, fmt);
 	cmd = talloc_vasprintf(ctx, fmt, ap);
 	va_end(ap);
 
-	contents = run_with_timeout(ctx, cmd, &ok, time_ms);
-	if (ok) {
-		talloc_free(contents);
-		return NULL;
-	}
-
-	if (!contents)
+	*output = run_with_timeout(ctx, cmd, &ok, time_ms);
+	if (ok)
+		return true;
+	if (!*output)
 		err(1, "Problem running child");
 	if (*time_ms == 0)
-		contents = talloc_asprintf_append(contents,
-						  "\n== TIMED OUT ==\n");
-	return contents;
+		*output = talloc_asprintf_append(*output,
+						 "\n== TIMED OUT ==\n");
+	return false;
 }
 
 static int unlink_all(char *dir)
@@ -210,6 +210,12 @@ char *temp_dir(const void *ctx)
 	return tmpdir;
 }
 
+int unlink_file_destructor(char *filename)
+{
+	unlink(filename);
+	return 0;
+}
+
 char *maybe_temp_file(const void *ctx, const char *extension, bool keep,
 		      const char *srcname)
 {
@@ -218,11 +224,7 @@ char *maybe_temp_file(const void *ctx, const char *extension, bool keep,
 	struct stat st;
 	unsigned int count = 0;
 
-	if (!keep)
-		srcname = talloc_basename(ctx, srcname);
-	else
-		assert(srcname[0] == '/');
-
+	srcname = talloc_basename(ctx, srcname);
 	if (strrchr(srcname, '.'))
 		baselen = strrchr(srcname, '.') - srcname;
 	else
@@ -230,7 +232,7 @@ char *maybe_temp_file(const void *ctx, const char *extension, bool keep,
 
 	do {
 		f = talloc_asprintf(ctx, "%s/%.*s%s%s",
-				    keep ? "" : temp_dir(ctx),
+				    temp_dir(ctx),
 				    baselen, srcname,
 				    suffix, extension);
 		talloc_free(suffix);
@@ -238,7 +240,10 @@ char *maybe_temp_file(const void *ctx, const char *extension, bool keep,
 	} while (lstat(f, &st) == 0);
 
 	if (tools_verbose)
-		printf("Creating file %s\n", f);
+		printf("Creating %sfile %s\n", keep ? "" : "temporary ", f);
+
+	if (!keep)
+		talloc_set_destructor(f, unlink_file_destructor);
 
 	talloc_free(suffix);
 	return f;