kconfig: add xstrdup() helper

We already have xmalloc(), xcalloc(), and xrealloc((). Add xstrdup() as well to save tedious error handling.

Masahiro Yamada committed 8 years ago

Commit cd81fc81 parent 6c49f356 files · +17 −5Browse files

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@@ -178,7 +178,7 @@ static int conf_set_sym_val(struct symbol sym, int def, int def_flags, char p) · 177 unmodified lines
178	178	case S_HEX:
179	179	done:
180	180	if (sym_string_valid(sym, p)) {
181		− sym->def[def].val = strdup(p);
	181	+ sym->def[def].val = xstrdup(p);
182	182	sym->flags \|= def_flags;
183	183	} else {
184	184	if (def != S_DEF_AUTO)

@@ -101,7 +101,7 @@ static struct message message__new(const char msg, char *option, · 100 unmodified lines
101	101	if (self->files == NULL)
102	102	goto out_fail;
103	103
104		− self->msg = strdup(msg);
	104	+ self->msg = xstrdup(msg);
105	105	if (self->msg == NULL)
106	106	goto out_fail_msg;
107	107

@@ -115,6 +115,7 @@ int file_write_dep(const char *name); · 114 unmodified lines
115	115	void *xmalloc(size_t size);
116	116	void *xcalloc(size_t nmemb, size_t size);
117	117	void xrealloc(void p, size_t size);
	118	+char xstrdup(const char s);
118	119
119	120	struct gstr {
120	121	size_t len;

@@ -183,7 +183,7 @@ static void sym_validate_range(struct symbol *sym) · 182 unmodified lines
183	183	sprintf(str, "%lld", val2);
184	184	else
185	185	sprintf(str, "0x%llx", val2);
186		− sym->curr.val = strdup(str);
	186	+ sym->curr.val = xstrdup(str);
187	187	}
188	188
189	189	static void sym_set_changed(struct symbol *sym)
@@ -849,7 +849,7 @@ struct symbol sym_lookup(const char name, int flags) · 659 unmodified lines
849	849	: !(symbol->flags & (SYMBOL_CONST\|SYMBOL_CHOICE))))
850	850	return symbol;
851	851	}
852		− new_name = strdup(name);
	852	+ new_name = xstrdup(name);
853	853	} else {
854	854	new_name = NULL;
855	855	hash = 0;

@@ -154,3 +154,14 @@ void xrealloc(void p, size_t size) · 153 unmodified lines
154	154	fprintf(stderr, "Out of memory.\n");
155	155	exit(1);
156	156	}
	157	+
	158	+char xstrdup(const char s)
	159	+{
	160	+ char *p;
	161	+
	162	+ p = strdup(s);
	163	+ if (p)
	164	+ return p;
	165	+ fprintf(stderr, "Out of memory.\n");
	166	+ exit(1);
	167	+}

@@ -127,7 +127,7 @@ no_mainmenu_stmt: /* empty */ · 126 unmodified lines
127	127	* later regardless of whether it comes from the 'prompt' in
128	128	* mainmenu_stmt or here
129	129	*/
130		− menu_add_prompt(P_MENU, strdup("Linux Kernel Configuration"), NULL);
	130	+ menu_add_prompt(P_MENU, xstrdup("Linux Kernel Configuration"), NULL);
131	131	};
132	132
133	133