Small fixes (#503)

* Fix implicit function declaration
* initialize errno
* Fix possible memory leak

Author: dl1jbe

src/addmult.c

@@ -414,6 +414,7 @@ int init_and_load_multipliers(void) {
 	return 0;       // couldn't open file
     }
 
+    errno = 0;
     while ((read = getline(&s_inputbuffer, &s_inputbuffer_len, cfp)) != -1) {
 	if (read > 0) {
 	    /* strip leading and trailing whitespace */

src/dxcc.c

@@ -355,6 +355,7 @@ int load_ctydata(char *filename) {
     // set default for empty country == country nr 0
     dxcc_add("Not Specified        :    --:  --:  --:  -00.00:    00.00:     0.0:     :");
 
+    errno = 0;
     while ((read = getline(&buf, &buf_len, fd)) != -1) {
 	if (read > 0) {
 	    g_strchomp(buf); 	/* drop CR and/or NL and */

src/initial_exchange.c

@@ -68,6 +68,7 @@ struct ie_list *make_ie_list(char *file) {
 
     showstring("Using initial exchange file", file);
 
+    errno = 0;
     while ((read = getline(&inputbuffer, &inputbuffer_len, fp)) != -1) {
 	if (read > 0) {
 	    linectr++;

src/parse_logcfg.c

@@ -114,6 +114,7 @@ int parse_configfile(FILE *fp) {
     size_t buffer_len;
     ssize_t read;
 
+    errno = 0;
     while ((read = getline(&buffer, &buffer_len, fp)) != -1) {
 	if (read > 0) {
 	    g_strchug(buffer);              // remove leading space
@@ -743,6 +744,7 @@ static int cfg_countrylist(const cfg_arg_t arg) {
     if ((fp = fopen(buffer, "r")) != NULL) {
 	char *prefix = g_strdup_printf("%s:", whichcontest);
 
+	errno = 0;
 	while ((read = getline(&buffer, &buffer_len, fp)) != -1) {
 	    if (read > 0) {
 		g_strstrip(buffer);   /* no leading/trailing whitespace*/
@@ -840,6 +842,8 @@ static int cfg_continentlist(const cfg_arg_t arg) {
 
     if ((fp = fopen(buffer, "r")) != NULL) {
 	char *prefix = g_strdup_printf("%s:", whichcontest);
+
+	errno = 0;
 	while ((read = getline(&buffer, &buffer_len, fp)) != -1) {
 	    if (read > 0) {
 		g_strstrip(buffer);   /* no leading/trailing whitespace*/

src/readcabrillo.c

@@ -474,10 +474,12 @@ int readcabrillo(int mode) {
 
     init_qso_array();
 
+    errno = 0;
     while ((read = getline(&logline, &read_len, fp1)) != -1) {
 	if (read > 0) {
 	    cab_qso_to_tlf(logline, cabdesc);
 	}
+	errno = 0;
     }
     if (errno == ENOMEM) {
 	fprintf(stderr, "Error in: %s:%d", __FILE__, __LINE__);

src/searchlog.c

@@ -761,6 +761,7 @@ int load_callmaster(void) {
 
     GHashTable *callset = g_hash_table_new(g_str_hash, g_str_equal);
 
+    errno = 0;
     while ((read = getline(&s_inputbuffer, &s_inputbuffer_len, cfp)) != -1) {
 	if (read > 0) {
 	    g_strstrip(s_inputbuffer);

src/writecabrillo.c

@@ -136,6 +136,7 @@ struct linedata_t *get_next_qtc_record(FILE *fp, int qtcdirection) {
     }
 
     if ((read = getline(&buffer, &buffer_len, fp)) == -1) {
+	free(buffer);
 	return NULL;
     }
 

test/Makefile.am

@@ -16,7 +16,7 @@ LIBS = @LIBM_LIB@ @PTHREAD_LIBS@ @GLIB_LIBS@ @HAMLIB_LIBS@ \
 noinst_HEADERS = \
     test.h
 
-AM_CFLAGS += @PTHREAD_CFLAGS@
+AM_CFLAGS += @PTHREAD_CFLAGS@ -D_GNU_SOURCE
 
 AM_CPPFLAGS += -DSRCDIR=\"$(abs_srcdir)\"