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-rw-r--r--libasn1fix/check_fixer.c313
1 files changed, 313 insertions, 0 deletions
diff --git a/libasn1fix/check_fixer.c b/libasn1fix/check_fixer.c
new file mode 100644
index 00000000..21c5b12f
--- /dev/null
+++ b/libasn1fix/check_fixer.c
@@ -0,0 +1,313 @@
+#undef NDEBUG
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <errno.h>
+#include <sysexits.h>
+
+#include "asn1fix.h"
+#include "asn1fix_internal.h"
+
+static int check(const char *fname,
+ enum asn1p_flags parser_flags,
+ enum asn1f_flags fixer_flags);
+static int post_fix_check(asn1p_t *asn);
+static int post_fix_check_element(asn1p_module_t *mod, asn1p_expr_t *expr);
+
+int
+main(int ac, char **av) {
+ struct dirent *dp;
+ DIR *dir;
+ int failed = 0;
+ int completed = 0;
+ enum asn1p_flags parser_flags = A1P_NOFLAGS;
+ enum asn1f_flags fixer_flags = A1F_NOFLAGS;
+ int ret;
+
+ /*
+ * Just in case when one decides that some flags better be
+ * enabled during `ASN1_FIXER_FLAGS=1 make check` or some
+ * similar usage.
+ */
+ if(getenv("ASN1_PARSER_FLAGS"))
+ parser_flags = atoi(getenv("ASN1_PARSER_FLAGS"));
+ if(getenv("ASN1_FIXER_FLAGS"))
+ fixer_flags = atoi(getenv("ASN1_FIXER_FLAGS"));
+
+ /*
+ * Go into a directory with tests.
+ */
+ if(ac <= 1) {
+ fprintf(stderr, "Testing in ./tests...\n");
+ ret = chdir("../tests");
+ assert(ret == 0);
+ dir = opendir(".");
+ assert(dir);
+ } else {
+ dir = 0;
+ }
+
+ /*
+ * Scan every *.asn1 file and try to parse and fix it.
+ */
+ if(dir) {
+ while((dp = readdir(dir))) {
+ int len = strlen(dp->d_name);
+ if(len && strcmp(dp->d_name + len - 5, ".asn1") == 0) {
+ ret = check(dp->d_name,
+ parser_flags, fixer_flags);
+ if(ret) {
+ fprintf(stderr,
+ "FAILED: %s\n",
+ dp->d_name);
+ failed++;
+ }
+ completed++;
+ }
+ }
+ closedir(dir);
+
+ fprintf(stderr,
+ "Tests COMPLETED: %d\n"
+ "Tests FAILED: %d\n"
+ ,
+ completed, failed
+ );
+ } else {
+ int i;
+ for(i = 1; i < ac; i++) {
+ ret = check(av[i], parser_flags, fixer_flags);
+ if(ret) {
+ fprintf(stderr, "FAILED: %s\n", av[i]);
+ failed++;
+ }
+ completed++;
+ }
+ }
+
+ if(completed == 0) {
+ fprintf(stderr, "No tests defined?!\n");
+ exit(EX_NOINPUT);
+ }
+
+ if(failed)
+ exit(EX_DATAERR);
+ return 0;
+}
+
+static int
+check(const char *fname,
+ enum asn1p_flags parser_flags,
+ enum asn1f_flags fixer_flags) {
+ asn1p_t *asn;
+ int expected_parseable; /* Is it expected to be parseable? */
+ int expected_fix_code; /* What code a fixer must return */
+ int r_value = 0;
+
+ /*
+ * Figure out how the processing should go by inferring
+ * expectations from the file name.
+ */
+ if(strstr(fname, "-OK.")) {
+ expected_parseable = 1;
+ expected_fix_code = 0;
+ } else if(strstr(fname, "-NP.")) {
+ expected_parseable = 0;
+ expected_fix_code = 123; /* Does not matter */
+ } else if(strstr(fname, "-SE.")) {
+ expected_parseable = 1;
+ expected_fix_code = -1; /* Semantically incorrect */
+ } else if(strstr(fname, "-SW.")) {
+ expected_parseable = 1;
+ expected_fix_code = 1; /* Semantically suspicious */
+ } else {
+ fprintf(stderr, "%s: Invalid file name format\n", fname);
+ return -1;
+ }
+
+ fprintf(stderr, "[=> %s]\n", fname);
+
+ /*
+ * Perform low-level parsing.
+ */
+ if(!expected_parseable)
+ fprintf(stderr, "Expecting error...\n");
+ asn = asn1p_parse_file(fname, parser_flags);
+ if(asn == NULL) {
+ if(expected_parseable) {
+ fprintf(stderr, "Cannot parse file \"%s\"\n", fname);
+ r_value = -1;
+ } else {
+ fprintf(stderr,
+ "Previous error is EXPECTED, no worry\n");
+ }
+ } else if(!expected_parseable) {
+ fprintf(stderr,
+ "The file \"%s\" is not expected to be parseable, "
+ "yet parsing was successfull!\n", fname);
+ r_value = -1;
+ }
+
+ /*
+ * Perform semantical checks and fixes.
+ */
+ if(asn && r_value == 0) {
+ int ret;
+
+ if(expected_fix_code)
+ fprintf(stderr, "Expecting some problems...\n");
+
+ ret = asn1f_process(asn, fixer_flags, 0);
+ if(ret) {
+ if(ret == expected_fix_code) {
+ fprintf(stderr,
+ "Previous error is EXPECTED, "
+ "no worry\n");
+ } else {
+ fprintf(stderr,
+ "Cannot process file \"%s\": %d\n",
+ fname, ret);
+ r_value = -1;
+ }
+ } else if(ret != expected_fix_code) {
+ fprintf(stderr,
+ "File \"%s\" is expected "
+ "to be semantically incorrect, "
+ "yet processing was successful!\n",
+ fname);
+ r_value = -1;
+ }
+ }
+
+ /*
+ * Check validity of some values, if grammar has special
+ * instructions for that.
+ */
+ if(asn && r_value == 0) {
+ if(post_fix_check(asn))
+ r_value = -1;
+ }
+
+ /*
+ * TODO: destroy the asn.
+ */
+
+ return r_value;
+}
+
+
+static int
+post_fix_check(asn1p_t *asn) {
+ asn1p_module_t *mod;
+ asn1p_expr_t *expr;
+ int r_value = 0;
+
+ TQ_FOR(mod, &(asn->modules), mod_next) {
+ TQ_FOR(expr, &(mod->members), next) {
+ assert(expr->Identifier);
+ if(strncmp(expr->Identifier, "check-", 6) == 0) {
+ if(post_fix_check_element(mod, expr))
+ r_value = -1;
+ }
+ }
+ }
+
+ return r_value;
+}
+
+
+static int
+post_fix_check_element(asn1p_module_t *mod, asn1p_expr_t *check_expr) {
+ asn1p_expr_t *expr = NULL;
+ char *name;
+ asn1p_value_t *value;
+
+ if(check_expr->expr_type != ASN_BASIC_INTEGER
+ || check_expr->meta_type != AMT_VALUE) {
+ fprintf(stderr,
+ "CHECKER: Unsupported type of \"%s\" value: "
+ "%d at line %d of %s\n",
+ check_expr->Identifier,
+ check_expr->expr_type,
+ check_expr->_lineno,
+ mod->source_file_name
+ );
+ return -1;
+ }
+
+ assert(check_expr->meta_type == AMT_VALUE);
+
+ value = check_expr->value;
+ if(value == NULL || value->type != ATV_INTEGER) {
+ fprintf(stderr,
+ "CHECKER: Unsupported value type of \"%s\": "
+ "%d at line %d of %s\n",
+ check_expr->Identifier,
+ value?value->type:-1,
+ expr->_lineno,
+ mod->source_file_name
+ );
+ return -1;
+ }
+
+ name = check_expr->Identifier + sizeof("check-") - 1;
+
+ /*
+ * Scan in search for the original.
+ */
+ TQ_FOR(expr, &(mod->members), next) {
+ if(strcmp(expr->Identifier, name) == 0)
+ break;
+ }
+
+ if(expr == NULL) {
+ fprintf(stderr,
+ "CHECKER: Value \"%s\" requested by "
+ "\"check-%s\" at line %d of %s is not found!\n",
+ name, name, check_expr->_lineno,
+ mod->source_file_name
+ );
+ return -1;
+ }
+
+ if(0 && expr->expr_type != check_expr->expr_type) {
+ fprintf(stderr,
+ "CHECKER: Value type of \"%s\" (=%d) at line %d "
+ "does not have desired type %d as requested by "
+ "\"check-%s\" in %s\n",
+ expr->Identifier,
+ expr->expr_type,
+ expr->_lineno,
+ check_expr->expr_type,
+ name,
+ mod->source_file_name
+ );
+ return -1;
+ }
+
+ if(expr->value == NULL
+ || expr->value->type != value->type) {
+ fprintf(stderr,
+ "CHECKER: Value of \"%s\" (\"%s\", type=%d) at line %d "
+ "does not have desired type %d as requested by "
+ "\"check-%s\" in %s\n",
+ expr->Identifier,
+ asn1f_printable_value(expr->value),
+ expr->value->type,
+ expr->_lineno,
+ value->type,
+ name,
+ mod->source_file_name
+ );
+ return -1;
+ }
+
+ assert(value->type = ATV_INTEGER);
+
+ return 0;
+}
+
+
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-20 19:50:58 +0000