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Add fuzzing support for some libpurple features
release-2.x.y
2021-06-24, Jordy Zomer <>

97c51d97d375

Add fuzzing support for some libpurple features

Testing Done:
Hi!

I built and tested all of these fuzzers for libpurple.

You can build them by first building pidgin/libpurple with `--enable-fuzzing` then going into `libpurple/tests` and run `make check`. After that you can run these fuzzers. With a dictionary if you want :)

for example:
```bash
$ ./fuzz_markup_strip_html -dict=dictionaries/html.dict
Dictionary: 465 entries
INFO: Seed: 2274862685
INFO: Loaded 1 modules (3 inline 8-bit counters): 3 [0x5a4ec0, 0x5a4ec3),
INFO: Loaded 1 PC tables (3 PCs): 3 [0x568ee8,0x568f18),
INFO: -max_len is not provided; libFuzzer will not generate inputs larger than 4096 bytes
INFO: A corpus is not provided, starting from an empty corpus
#2 INITED cov: 2 ft: 2 corp: 1/1b exec/s: 0 rss: 30Mb
#1048576 pulse cov: 2 ft: 2 corp: 1/1b lim: 4096 exec/s: 524288 rss: 789Mb
#2097152 pulse cov: 2 ft: 2 corp: 1/1b lim: 4096 exec/s: 524288 rss: 792Mb
```

Best Regards,

Jordy Zomer

Reviewed at https://reviews.imfreedom.org/r/760/

# targets.mak

# This file should be included at the end of all Makefile.mingw

# files for better handling of cross directory dependencies

$(PIDGIN_CONFIG_H): $(PIDGIN_CONFIG_H).mingw $(PIDGIN_TREE_TOP)/configure.ac

sed -e 's/@VERSION@/$(PIDGIN_VERSION)/; s/@DISPLAY_VERSION@/$(DISPLAY_VERSION)/' $@.mingw > $@

$(PURPLE_PURPLE_H): $(PURPLE_PURPLE_H).in

sed -e 's/@PLUGINS_DEFINE@/#define PURPLE_PLUGINS 1/' $@.in > $@

$(PURPLE_VERSION_H): $(PURPLE_VERSION_H).in $(PIDGIN_TREE_TOP)/configure.ac

awk 'BEGIN {FS="[\$\$\\[\\]]"} \

/^m4_define..purple_major_version/ {system("sed -e s/@PURPLE_MAJOR_VERSION@/"$$5"/ $@.in > $@");} \

/^m4_define..purple_minor_version/ {system("sed -e s/@PURPLE_MINOR_VERSION@/"$$5"/ $@ > $@.tmp && mv $@.tmp $@");} \

/^m4_define..purple_micro_version/ {system("sed -e s/@PURPLE_MICRO_VERSION@/"$$5"/ $@ > $@.tmp && mv $@.tmp $@"); exit}' $(PIDGIN_TREE_TOP)/configure.ac

$(PIDGIN_REVISION_RAW_TXT):

(hg --cwd $(PIDGIN_TREE_TOP) log -r . -T '{node}') 2>/dev/null >$@ \

|| rm -f $@

$(PIDGIN_REVISION_H): $(PIDGIN_REVISION_RAW_TXT)

if [ -f $< ]; then \

sed 's/^$.\{1,\}$$$/#define REVISION "\1"/' $< > $@; \

[ -f $@ ] || echo "#define REVISION \"unknown\"" > $@

$(PURPLE_DLL) $(PURPLE_DLL).a: $(PURPLE_VERSION_H)

$(MAKE) -C $(PURPLE_TOP) -f $(MINGW_MAKEFILE) libpurple.dll

$(PURPLE_PERL_DLL) $(PURPLE_PERL_DLL).a:

$(MAKE) -C $(PURPLE_PERL_TOP) -f $(MINGW_MAKEFILE) perl.dll

$(PIDGIN_DLL) $(PIDGIN_DLL).a:

$(MAKE) -C $(PIDGIN_TOP) -f $(MINGW_MAKEFILE) pidgin.dll

$(PIDGIN_EXE):

$(MAKE) -C $(PIDGIN_TOP) -f $(MINGW_MAKEFILE) pidgin.exe

# Installation Directories

$(PIDGIN_INSTALL_DIR):

mkdir -p $(PIDGIN_INSTALL_DIR)

$(PIDGIN_INSTALL_PERL_DIR):

mkdir -p $(PIDGIN_INSTALL_PERL_DIR)

$(PIDGIN_INSTALL_PLUGINS_DIR):

mkdir -p $(PIDGIN_INSTALL_PLUGINS_DIR)

$(PURPLE_INSTALL_PO_DIR):

mkdir -p $(PURPLE_INSTALL_PO_DIR)

#$(PURPLE_INSTALL_PLUGINS_DIR):

# mkdir -p $(PURPLE_INSTALL_PLUGINS_DIR)

#$(PURPLE_INSTALL_PERL_DIR):

# mkdir -p $(PURPLE_INSTALL_PERL_DIR)

pidgin/pidgin