commit d0fed6eb088ab7f0eec876aea0bb98327c77c2bb
from: Omar Polo <op@omarpolo.com>
date: Tue Jul 02 17:47:49 2024 UTC

initial support for fuzzying

commit - bdfea70f305cae0cee71d79f097aff93a69bccf7
commit + d0fed6eb088ab7f0eec876aea0bb98327c77c2bb
blob - 2a74d3a991d5e6bb4035539f72d73918c32985c2
blob + 01e731053dc0c5871f2108eae14a743c29d0300b
--- .gitignore
+++ .gitignore
@@ -33,5 +33,10 @@ regress/iri_test
 regress/puny-test
 regress/gmid.pid
 
+regress/fuzz/in
+regress/fuzz/out
+regress/fuzz/min
+regress/fuzz/iri
+
 site/gemini
 site/www
blob - /dev/null
blob + 88bffcaf6d2bc5e513bd72c81516167f6f286880 (mode 644)
--- /dev/null
+++ regress/fuzz/Makefile
@@ -0,0 +1,38 @@
+DISTFILES =	Makefile \
+		iri.c
+
+include ../../config.mk
+
+CC = afl-clang
+
+COBJS =		${COMPATS:.c=.o}
+REG_COMPATS =	${COBJS:%=../../%}
+
+IRI_SRCS =	iri.c ../../iri.c ../../utf8.c ../../log.c
+IRI_OBJS =	${IRI_SRCS:.c=.o} ${REG_COMPATS}
+
+.PHONY: all data clean dist
+
+all: fuzz
+
+fuzz: iri
+	mkdir -p in out
+	echo 'gemini://omarpolo.com/'		> in/simple
+	echo 'https://op:123@omarpolo.com/'	> in/auth
+	echo 'ftp://op@omarpolo.com/a/bb/c'	> in/path
+	echo 'gemini://omarpolo.com/?some=val'	> in/query
+	echo 'gemini://omarpolo.com/b/#xyz'	> in/fragment
+	echo 'gemini://omarpolo.com/b/?x=y#xyz'	> in/qf
+	echo 'ssh://omarpolo.com/%2F/'		> in/enc
+	echo 'http://omarpolo.com/foo/.././'	> in/dots
+	echo 'http://omarpolo.com/////././'	> in/slash
+	afl-fuzz -i in -o out -- ./iri
+
+iri: ${IRI_OBJS}
+	${CC} ${IRI_OBJS} -o $@ ${LIBS} ${LDFLAGS}
+
+.c.o:
+	${CC} -I../.. ${CFLAGS} -c $< -o $@
+
+clean:
+	rm -f *.o iri
blob - /dev/null
blob + c9672f4adedb385bdac9bed84881b8af44a06465 (mode 644)
--- /dev/null
+++ regress/fuzz/iri.c
@@ -0,0 +1,35 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "iri.h"
+
+int
+main(void)
+{
+	struct iri	 iri;
+	const char	*errstr = NULL;
+	char		 buf[64];
+	char		*line = NULL;
+	size_t		 linesize = 0;
+	ssize_t		 linelen;
+
+	if ((linelen = getline(&line, &linesize, stdin)) == -1)
+		return (1);
+
+	if (line[linelen-1] == '\n')
+		line[--linelen] = '\0';
+
+	if (parse_iri(line, &iri, &errstr)) {
+		if (serialize_iri(&iri, buf, sizeof(buf)))
+			puts(buf);
+	}
+
+	free(line);
+	if (ferror(stdin)) {
+		perror("getline");
+		return (1);
+	}
+
+	return (0);
+}