diff options
Diffstat (limited to 'erts/etc/common/dialyzer.c')
| -rw-r--r-- | erts/etc/common/dialyzer.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/erts/etc/common/dialyzer.c b/erts/etc/common/dialyzer.c index 4b4c1124f1..4453e63f1c 100644 --- a/erts/etc/common/dialyzer.c +++ b/erts/etc/common/dialyzer.c @@ -147,6 +147,9 @@ main(int argc, char** argv) env = get_env("DIALYZER_EMULATOR"); emulator = env ? env : get_default_emulator(argv[0]); + if (strlen(emulator) >= MAXPATHLEN) + error("Value of environment variable DIALYZER_EMULATOR is too large"); + /* * Allocate the argv vector to be used for arguments to Erlang. * Arrange for starting to pushing information in the middle of @@ -228,7 +231,7 @@ main(int argc, char** argv) static void push_words(char* src) { - char sbuf[1024]; + char sbuf[MAXPATHLEN]; char* dst; dst = sbuf; @@ -360,7 +363,7 @@ error(char* format, ...) va_list ap; va_start(ap, format); - vsprintf(sbuf, format, ap); + erts_vsnprintf(sbuf, sizeof(sbuf), format, ap); va_end(ap); fprintf(stderr, "dialyzer: %s\n", sbuf); exit(1); @@ -389,6 +392,9 @@ get_default_emulator(char* progname) char sbuf[MAXPATHLEN]; char* s; + if (strlen(progname) >= sizeof(sbuf)) + return ERL_NAME; + strcpy(sbuf, progname); for (s = sbuf+strlen(sbuf); s >= sbuf; s--) { if (IS_DIRSEP(*s)) { |