Add explicit casts to silence compiler warnings

clang complais when converting (char *) to (unsigned char *), so tell
it it's fine.

Signed-off-by: Robert C. Helling <helling@atdotde.de>
Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

cochran.c

@@ -200,7 +200,7 @@ static void cochran_parse_header(const unsigned char *decode, unsigned mod,
 
 	/* Do the "null decode" using a one-byte decode array of '\0' */
 	/* Copies in plaintext, will be overwritten later */
-	partial_decode(0, 0x0102, "", 0, 1, in, size, buf);
+	partial_decode(0, 0x0102, (const unsigned char *)"", 0, 1, in, size, buf);
 
 	/*
 	 * The header scrambling is different form the dive
@@ -778,7 +778,7 @@ int try_to_open_cochran(const char *filename, struct memblock *mem)
 	if (mem->size < 0x40000)
 		return 0;
 
-	offsets = (int *) mem->buffer;
+	offsets = (unsigned int *) mem->buffer;
 	dive1 = offsets[0];
 	dive2 = offsets[1];
 

libdivecomputer.c

@@ -409,7 +409,7 @@ static uint32_t calculate_diveid(const unsigned char *fingerprint, unsigned int
 #ifdef DC_FIELD_STRING
 static uint32_t calculate_string_hash(const char *str)
 {
-	return calculate_diveid(str, strlen(str));
+	return calculate_diveid((const unsigned char *)str, strlen(str));
 }
 
 static void parse_string_field(struct dive *dive, dc_field_string_t *str)

ostctools.c

@@ -67,8 +67,8 @@ void ostctools_import(const char *file, struct dive_table *divetable)
 	FILE *archive;
 	device_data_t *devdata = calloc(1, sizeof(device_data_t));
 	dc_family_t dc_fam;
-	unsigned char *buffer = calloc(65536, 1),
-		      *tmp;
+	unsigned char *buffer = calloc(65536, 1);
+	char *tmp;
 	struct dive *ostcdive = alloc_dive();
 	dc_status_t rc = 0;
 	int model = 0, i = 0;
@@ -125,7 +125,7 @@ void ostctools_import(const char *file, struct dive_table *divetable)
 	// a model number so will use 0.
 	ostc_prepare_data(model, dc_fam, devdata);
 	tmp = calloc(strlen(devdata->vendor)+strlen(devdata->model)+28,1);
-	sprintf(tmp,"%s %s (Imported from OSTCTools)", devdata->vendor, devdata->model);
+	sprintf(tmp, "%s %s (Imported from OSTCTools)", devdata->vendor, devdata->model);
 	ostcdive->dc.model =  copy_string(tmp);
 	free(tmp);
 

parse-xml.c

@@ -1736,14 +1736,14 @@ static const char *nodename(xmlNode *node, char *buf, int len)
 		return "root";
 	}
 
-	if (node->type == XML_CDATA_SECTION_NODE || (node->parent && !strcmp(node->name, "text")))
+	if (node->type == XML_CDATA_SECTION_NODE || (node->parent && !strcmp((const char *)node->name, "text")))
 		node = node->parent;
 
 	/* Make sure it's always NUL-terminated */
 	p[--len] = 0;
 
 	for (;;) {
-		const char *name = node->name;
+		const char *name = (const char *)node->name;
 		char c;
 		while ((c = *name++) != 0) {
 			/* Cheaper 'tolower()' for ASCII */
@@ -1768,7 +1768,7 @@ static const char *nodename(xmlNode *node, char *buf, int len)
 
 static bool visit_one_node(xmlNode *node)
 {
-	char *content;
+	xmlChar *content;
 	static char buffer[MAXNAME];
 	const char *name;
 
@@ -1778,7 +1778,7 @@ static bool visit_one_node(xmlNode *node)
 
 	name = nodename(node, buffer, sizeof(buffer));
 
-	return entry(name, content);
+	return entry(name, (char *)content);
 }
 
 static bool traverse(xmlNode *root);
@@ -1874,7 +1874,7 @@ static bool traverse(xmlNode *root)
 		}
 
 		do {
-			if (!strcmp(rule->name, n->name))
+			if (!strcmp(rule->name, (const char *)n->name))
 				break;
 			rule++;
 		} while (rule->name);
@@ -1921,7 +1921,7 @@ const char *preprocess_divelog_de(const char *buffer)
 				return buffer;
 
 		ctx = xmlCreateMemoryParserCtxt(buf, sizeof(buf));
-		ret = xmlStringLenDecodeEntities(ctx, ret, strlen(ret), XML_SUBSTITUTE_REF, 0, 0, 0);
+		ret = (char *)xmlStringLenDecodeEntities(ctx, (xmlChar *)ret, strlen(ret), XML_SUBSTITUTE_REF, 0, 0, 0);
 
 		return ret;
 	}
@@ -3138,17 +3138,17 @@ static xmlDoc *test_xslt_transforms(xmlDoc *doc, const char **params)
 	char *attribute;
 
 	while (info->root) {
-		if ((strcasecmp(root_element->name, info->root) == 0)) {
+		if ((strcasecmp((const char *)root_element->name, info->root) == 0)) {
 			if (info->attribute == NULL)
 				break;
-			else if (xmlGetProp(root_element, info->attribute) != NULL)
+			else if (xmlGetProp(root_element, (const xmlChar *)info->attribute) != NULL)
 				break;
 		}
 		info++;
 	}
 
 	if (info->root) {
-		attribute = xmlGetProp(xmlFirstElementChild(root_element), "name");
+		attribute = (char *)xmlGetProp(xmlFirstElementChild(root_element), (const xmlChar *)"name");
 		if (attribute) {
 			if (strcasecmp(attribute, "subsurface") == 0) {
 				free((void *)attribute);

planner.c

@@ -470,7 +470,7 @@ static unsigned int *sort_stops(int *dstops, int dnr, struct gaschanges *gstops,
 {
 	int i, gi, di;
 	int total = dnr + gnr;
-	int *stoplevels = malloc(total * sizeof(int));
+	unsigned int *stoplevels = malloc(total * sizeof(int));
 
 	/* no gaschanges */
 	if (gnr == 0) {
@@ -866,7 +866,7 @@ bool plan(struct diveplan *diveplan, char **cached_datap, bool is_planner, bool
 	double tissue_tolerance = 0.0;
 	struct gaschanges *gaschanges = NULL;
 	int gaschangenr;
-	int *stoplevels = NULL;
+	unsigned int *stoplevels = NULL;
 	bool stopping = false;
 	bool clear_to_ascend;
 	int clock, previous_point_time;

uemis.c

@@ -90,7 +90,7 @@ static int uemis_convert_base64(char *base64, uint8_t **data)
 		fprintf(stderr, "Out of memory\n");
 		goto bail;
 	}
-	decode(base64, *data, len);
+	decode((unsigned char *)base64, *data, len);
 
 	if (memcmp(*data, "Dive\01\00\00", 7))
 		fprintf(stderr, "Missing Dive100 header\n");