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authorVadim Kochan <vadim4j@gmail.com>2015-11-22 21:09:38 +0200
committerTobias Klauser <tklauser@distanz.ch>2015-11-24 10:24:17 +0100
commit5e7e8b46fc84d8010e11d3c43d8c2b742028375f (patch)
treefc3f14674c3fa6f778774fe13517bdeacd667bbf
parent8a8fd13d6dc2f99cc731657aaffcc1c7dcd975b3 (diff)
trafgen: Invoke C preprocessor from cpp.c module
Use cpp_exec func to invoke C preprocesor. Signed-off-by: Vadim Kochan <vadim4j@gmail.com> Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
-rw-r--r--trafgen/Makefile1
-rw-r--r--trafgen_parser.y14
2 files changed, 3 insertions, 12 deletions
diff --git a/trafgen/Makefile b/trafgen/Makefile
index 9777485..bc256b2 100644
--- a/trafgen/Makefile
+++ b/trafgen/Makefile
@@ -18,6 +18,7 @@ trafgen-objs = xmalloc.o \
ring.o \
timer.o \
sysctl.o \
+ cpp.o \
trafgen_lexer.yy.o \
trafgen_parser.tab.o \
trafgen.o
diff --git a/trafgen_parser.y b/trafgen_parser.y
index a05b7e8..afcb3e2 100644
--- a/trafgen_parser.y
+++ b/trafgen_parser.y
@@ -25,6 +25,7 @@
#include "die.h"
#include "str.h"
#include "csum.h"
+#include "cpp.h"
#define YYERROR_VERBOSE 0
#define YYDEBUG 0
@@ -598,22 +599,11 @@ void compile_packets(char *file, bool verbose, unsigned int cpu, bool invoke_cpp
our_cpu = cpu;
if (invoke_cpp) {
- char cmd[256], *dir, *base, *a, *b;
-
- dir = dirname((a = xstrdup(file)));
- base = basename((b = xstrdup(file)));
-
- slprintf(tmp_file, sizeof(tmp_file), "%s/.tmp-%u-%s", dir, rand(), base);
- slprintf(cmd, sizeof(cmd), "cpp -I" ETCDIRE_STRING " %s > %s",
- file, tmp_file);
- if (system(cmd) != 0) {
+ if (cpp_exec(file, tmp_file, sizeof(tmp_file))) {
fprintf(stderr, "Failed to invoke C preprocessor!\n");
goto err;
}
-
file = tmp_file;
- xfree(a);
- xfree(b);
}
if (!strncmp("-", file, strlen("-")))