Use correct type for oscap pcre methods

Before we using signed int for size_t which unsigned. This commit uses the correct size_t for these.

Author: Mab879

src/OVAL/probes/independent/textfilecontent54_probe.c

@@ -123,13 +123,14 @@ struct pfdata {
 static int process_file(const char *prefix, const char *path, const char *file, struct pfdata *pfd, oval_schema_version_t over, struct oscap_list *blocked_paths)
 {
 	int ret = 0, path_len, file_len, cur_inst = 0, fd = -1, substr_cnt,
-		buf_size = 0, buf_used = 0, ofs = 0, buf_inc = 4096, instance_count = 0,
+		buf_size = 0, buf_used = 0, buf_inc = 4096, instance_count = 0,
 		want_instance = 1, negative_instance_value = 0;
 	char **substrs = NULL;
 	char *whole_path = NULL, *whole_path_with_prefix = NULL, *buf = NULL;
 	SEXP_t *next_inst = NULL, *items = SEXP_list_new(NULL), *instance_value_list = NULL,
 		*instance_value = NULL;
 	struct stat st;
+	size_t ofs = 0;
 
 
 	if (file == NULL)

src/OVAL/probes/independent/textfilecontent_probe.c

@@ -197,7 +197,7 @@ static int process_file(const char *prefix, const char *path, const char *filena
 
 	int cur_inst = 0;
 	char line[4096];
-	int ofs = 0;
+	size_t ofs = 0;
 
 	while (fgets(line, sizeof(line), fp) != NULL) {
 		substr_cnt = oscap_pcre_get_substrings(line, &ofs, re, 1, &substrs);

src/common/oscap_pcre.c

@@ -131,7 +131,7 @@ void oscap_pcre_set_match_limit_recursion(oscap_pcre_t *opcre, unsigned long lim
 }
 
 int oscap_pcre_exec(const oscap_pcre_t *opcre, const char *subject,
-                    int length, int startoffset, oscap_pcre_options_t options,
+                    size_t length, size_t startoffset, oscap_pcre_options_t options,
                     int *ovector, int ovecsize)
 {
 	int rc = 0;
@@ -163,7 +163,7 @@ void oscap_pcre_free(oscap_pcre_t *opcre)
 	}
 }
 
-int oscap_pcre_get_substrings(char *str, int *ofs, oscap_pcre_t *re, int want_substrs, char ***substrings) {
+int oscap_pcre_get_substrings(char *str, size_t *ofs, oscap_pcre_t *re, int want_substrs, char ***substrings) {
 	int i, ret, rc;
 	int ovector[60], ovector_len = sizeof (ovector) / sizeof (ovector[0]);
 	char **substrs;

src/common/oscap_pcre.h

@@ -73,7 +73,7 @@ oscap_pcre_t* oscap_pcre_compile(const char *pattern, oscap_pcre_options_t optio
  * negative error code on failure
  */
 int oscap_pcre_exec(const oscap_pcre_t *opcre, const char *subject,
-                    int length, int startoffset, oscap_pcre_options_t options,
+                    size_t length, size_t startoffset, oscap_pcre_options_t options,
                     int *ovector, int ovecsize);
 
 /**
@@ -101,7 +101,7 @@ void oscap_pcre_set_match_limit_recursion(oscap_pcre_t *opcre, unsigned long lim
  * @return count of matched substrings, 0 if no match
  * negative value on failure
  */
-int oscap_pcre_get_substrings(char *str, int *ofs, oscap_pcre_t *re, int want_substrs, char ***substrings);
+int oscap_pcre_get_substrings(char *str, size_t *ofs, oscap_pcre_t *re, int want_substrs, char ***substrings);
 
 /**
  * Free the error message returned by oscap_pcre_compile. DON'T USE REGULAR free()!