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Diffstat (limited to 'erts/etc/common/erlc.c')
-rw-r--r--erts/etc/common/erlc.c17
1 files changed, 9 insertions, 8 deletions
diff --git a/erts/etc/common/erlc.c b/erts/etc/common/erlc.c
index 09aca19e6c..cd137435d1 100644
--- a/erts/etc/common/erlc.c
+++ b/erts/etc/common/erlc.c
@@ -148,10 +148,6 @@ int
main(int argc, char** argv)
{
char cwd[MAXPATHLEN]; /* Current working directory. */
- char** rpc_eargv; /* Pointer to the beginning of arguments
- * if calling a running Erlang system
- * via erl_rpc().
- */
int eargv_size;
int eargc_base; /* How many arguments in the base of eargv. */
char* emulator;
@@ -160,6 +156,9 @@ main(int argc, char** argv)
env = get_env("ERLC_EMULATOR");
emulator = env ? env : get_default_emulator(argv[0]);
+ if (strlen(emulator) >= MAXPATHLEN)
+ error("Value of environment variable ERLC_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
@@ -170,7 +169,7 @@ main(int argc, char** argv)
* base of the eargv vector, and move it up later.
*/
- eargv_size = argc*4+100;
+ eargv_size = argc*6+100;
eargv_base = (char **) emalloc(eargv_size*sizeof(char*));
eargv = eargv_base;
eargc = 0;
@@ -189,7 +188,6 @@ main(int argc, char** argv)
PUSH2("-mode", "minimal");
PUSH2("-boot", "start_clean");
PUSH3("-s", "erl_compile", "compile_cmdline");
- rpc_eargv = eargv+eargc;
/*
* Push standard arguments to Erlang.
@@ -419,7 +417,7 @@ process_opt(int* pArgc, char*** pArgv, int offset)
static void
push_words(char* src)
{
- char sbuf[1024];
+ char sbuf[MAXPATHLEN];
char* dst;
dst = sbuf;
@@ -595,7 +593,7 @@ 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, "erlc: %s\n", sbuf);
exit(1);
@@ -624,6 +622,9 @@ 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)) {