scripts/kconfig/util.c

/*
 * 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 <string.h>
#include "lkc.h"

/* file already present in list? If not add it */
struct file *file_lookup(const char *name)
{
	struct file *file;

	for (file = file_list; file; file = file->next) {
		if (!strcmp(name, file->name))
			return file;
	}

	file = malloc(sizeof(*file));
	memset(file, 0, sizeof(*file));
	file->name = strdup(name);
	file->next = file_list;
	file_list = file;
	return file;
}

/* write a dependency file as used by kbuild to track dependencies */
int file_write_dep(const char *name)
{
	struct file *file;
	FILE *out;

	if (!name)
		name = ".kconfig.d";
	out = fopen("..config.tmp", "w");
	if (!out)
		return 1;
	fprintf(out, "deps_config := \\\n");
	for (file = file_list; file; file = file->next) {
		if (file->next)
			fprintf(out, "\t%s \\\n", file->name);
		else
			fprintf(out, "\t%s\n", file->name);
	}
	fprintf(out,
		"\n"
		".config include/autoconf.h: $(deps_config)\n"
		"\n"
		"include/autoconf.h: .config\n" /* bbox */
		"\n"
		"$(deps_config):\n");
	fclose(out);
	rename("..config.tmp", name);
	return 0;
}


/* Allocate initial growable string */
struct gstr str_new(void)
{
	struct gstr gs;
	gs.s = malloc(sizeof(char) * 64);
	gs.len = 16;
	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)
{
	if (gs->s)
		free(gs->s);
	gs->s = NULL;
	gs->len = 0;
}

/* Append to growable string */
void str_append(struct gstr *gs, const char *s)
{
	size_t l = strlen(gs->s) + strlen(s) + 1;
	if (l > gs->len) {
		gs->s   = realloc(gs->s, l);
		gs->len = l;
	}
	strcat(gs->s, s);
}

/* Append printf formatted string to growable string */
void str_printf(struct gstr *gs, const char *fmt, ...)
{
	va_list ap;
	char s[10000]; /* big enough... */
	va_start(ap, fmt);
	vsnprintf(s, sizeof(s), fmt, ap);
	str_append(gs, s);
	va_end(ap);
}

/* Retrieve value of growable string */
const char *str_get(struct gstr *gs)
{
	return gs->s;
}

1	niro	532	/*
2			* Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org>
3			* Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org>
4			*
5			* Released under the terms of the GNU GPL v2.0.
6			*/
7
8			#include <string.h>
9			#include "lkc.h"
10
11			/* file already present in list? If not add it */
12			struct file file_lookup(const char name)
13			{
14			struct file *file;
15
16			for (file = file_list; file; file = file->next) {
17			if (!strcmp(name, file->name))
18			return file;
19			}
20
21			file = malloc(sizeof(*file));
22			memset(file, 0, sizeof(*file));
23			file->name = strdup(name);
24			file->next = file_list;
25			file_list = file;
26			return file;
27			}
28
29			/* write a dependency file as used by kbuild to track dependencies */
30			int file_write_dep(const char *name)
31			{
32			struct file *file;
33			FILE *out;
34
35			if (!name)
36			name = ".kconfig.d";
37			out = fopen("..config.tmp", "w");
38			if (!out)
39			return 1;
40			fprintf(out, "deps_config := \\\n");
41			for (file = file_list; file; file = file->next) {
42			if (file->next)
43			fprintf(out, "\t%s \\\n", file->name);
44			else
45			fprintf(out, "\t%s\n", file->name);
46			}
47	niro	984	fprintf(out,
48			"\n"
49			".config include/autoconf.h: $(deps_config)\n"
50			"\n"
51			"include/autoconf.h: .config\n" /* bbox */
52			"\n"
53			"$(deps_config):\n");
54	niro	532	fclose(out);
55			rename("..config.tmp", name);
56			return 0;
57			}
58
59
60	niro	1123	/* Allocate initial growable string */
61	niro	532	struct gstr str_new(void)
62			{
63			struct gstr gs;
64			gs.s = malloc(sizeof(char) * 64);
65			gs.len = 16;
66			strcpy(gs.s, "\0");
67			return gs;
68			}
69
70			/* Allocate and assign growable string */
71			struct gstr str_assign(const char *s)
72			{
73			struct gstr gs;
74			gs.s = strdup(s);
75			gs.len = strlen(s) + 1;
76			return gs;
77			}
78
79			/* Free storage for growable string */
80			void str_free(struct gstr *gs)
81			{
82			if (gs->s)
83			free(gs->s);
84			gs->s = NULL;
85			gs->len = 0;
86			}
87
88			/* Append to growable string */
89			void str_append(struct gstr gs, const char s)
90			{
91			size_t l = strlen(gs->s) + strlen(s) + 1;
92			if (l > gs->len) {
93			gs->s = realloc(gs->s, l);
94			gs->len = l;
95			}
96			strcat(gs->s, s);
97			}
98
99			/* Append printf formatted string to growable string */
100			void str_printf(struct gstr gs, const char fmt, ...)
101			{
102			va_list ap;
103			char s[10000]; /* big enough... */
104			va_start(ap, fmt);
105			vsnprintf(s, sizeof(s), fmt, ap);
106			str_append(gs, s);
107			va_end(ap);
108			}
109
110			/* Retrieve value of growable string */
111			const char str_get(struct gstr gs)
112			{
113			return gs->s;
114			}
115