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Replace strcpy() and strcat() with safer functions

This commit is contained in:
Lassi Kortela 2019-08-09 20:14:42 +03:00
parent b5946dea77
commit b7b4269455
2 changed files with 8 additions and 5 deletions
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2
c/flisp.c
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@ -283,7 +283,7 @@ static struct symbol *mk_symbol(char *str)
}
sym->type = sym->dlcache = NULL;
sym->hash = memhash32(str, len) ^ 0xAAAAAAAA;
strcpy(&sym->name[0], str);
memcpy(&sym->name[0], str, len + 1);
return sym;
}

11
c/flmain.c
View File

@ -1,6 +1,7 @@
#include <assert.h>
#include <setjmp.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@ -39,17 +40,19 @@ extern value_t fl_file(value_t *args, uint32_t nargs);
int main(int argc, char *argv[])
{
char fname_buf[1024];
const char *bootfile = "flisp.boot";
fl_init(512 * 1024);
fname_buf[0] = '\0';
value_t str = symbol_value(symbol("*install-dir*"));
char *exedir = (str == UNBOUND ? NULL : cvalue_data(str));
if (exedir != NULL) {
strcat(fname_buf, exedir);
strcat(fname_buf, PATHSEPSTRING);
if (exedir == NULL) {
snprintf(fname_buf, sizeof(fname_buf), "%s", bootfile);
} else {
snprintf(fname_buf, sizeof(fname_buf), "%s%s%s", exedir,
PATHSEPSTRING, bootfile);
}
strcat(fname_buf, "flisp.boot");
value_t args[2];
fl_gc_handle(&args[0]);