kconfig: convert to SPDX License Identifier

[carl9170fw.git] / config / util.c

diff --git a/config/util.c b/config/util.c
index eef006ce5daa6e62ac0f98f2906d85e816f1e568..29585394df71dfb75e3f56fcd1995b593863fc8d 100644 (file)
--- a/config/util.c
+++ b/config/util.c
@@ -1,10 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org>
  * Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org>
- *
- * Released under the terms of the GNU GPL v2.0.
  */
 
+#include <stdarg.h>
+#include <stdlib.h>
 #include <string.h>
 #include "lkc.h"
 
@@ -14,37 +15,30 @@ struct file *file_lookup(const char *name)
        struct file *file;
 
        for (file = file_list; file; file = file->next) {
-               if (!strcmp(name, file->name))
+               if (!strcmp(name, file->name)) {
                        return file;
+               }
        }
 
-       file = malloc(sizeof(*file));
+       file = xmalloc(sizeof(*file));
        memset(file, 0, sizeof(*file));
-       file->name = strdup(name);
+       file->name = xstrdup(name);
        file->next = file_list;
        file_list = file;
        return file;
 }
 
-/* Allocate initial growable sting */
+/* Allocate initial growable string */
 struct gstr str_new(void)
 {
        struct gstr gs;
-       gs.s = malloc(sizeof(char) * 64);
+       gs.s = xmalloc(sizeof(char) * 64);
        gs.len = 64;
+       gs.max_width = 0;
        strcpy(gs.s, "\0");
        return gs;
 }
 
-/* Allocate and assign growable string */
-struct gstr str_assign(const char *s)
-{
-       struct gstr gs;
-       gs.s = strdup(s);
-       gs.len = strlen(s) + 1;
-       return gs;
-}
-
 /* Free storage for growable string */
 void str_free(struct gstr *gs)
 {
@@ -61,7 +55,7 @@ void str_append(struct gstr *gs, const char *s)
        if (s) {
                l = strlen(gs->s) + strlen(s) + 1;
                if (l > gs->len) {
-                       gs->s   = realloc(gs->s, l);
+                       gs->s = xrealloc(gs->s, l);
                        gs->len = l;
                }
                strcat(gs->s, s);
@@ -85,3 +79,51 @@ const char *str_get(struct gstr *gs)
        return gs->s;
 }
 
+void *xmalloc(size_t size)
+{
+       void *p = malloc(size);
+       if (p)
+               return p;
+       fprintf(stderr, "Out of memory.\n");
+       exit(1);
+}
+
+void *xcalloc(size_t nmemb, size_t size)
+{
+       void *p = calloc(nmemb, size);
+       if (p)
+               return p;
+       fprintf(stderr, "Out of memory.\n");
+       exit(1);
+}
+
+void *xrealloc(void *p, size_t size)
+{
+       p = realloc(p, size);
+       if (p)
+               return p;
+       fprintf(stderr, "Out of memory.\n");
+       exit(1);
+}
+
+char *xstrdup(const char *s)
+{
+       char *p;
+
+       p = strdup(s);
+       if (p)
+               return p;
+       fprintf(stderr, "Out of memory.\n");
+       exit(1);
+}
+
+char *xstrndup(const char *s, size_t n)
+{
+       char *p;
+
+       p = strndup(s, n);
+       if (p)
+               return p;
+       fprintf(stderr, "Out of memory.\n");
+       exit(1);
+}