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1da177e4 LT |
1 | /* |
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) | |
752625cf | 36 | name = ".kconfig.d"; |
1da177e4 LT |
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 | } | |
c955ccaf RZ |
47 | fprintf(out, "\ninclude/config/auto.conf: \\\n" |
48 | "\t$(deps_config)\n\n" | |
49 | "$(deps_config): ;\n"); | |
1da177e4 LT |
50 | fclose(out); |
51 | rename("..config.tmp", name); | |
52 | return 0; | |
53 | } | |
54 | ||
55 | ||
56 | /* Allocate initial growable sting */ | |
57 | struct gstr str_new(void) | |
58 | { | |
59 | struct gstr gs; | |
60 | gs.s = malloc(sizeof(char) * 64); | |
61 | gs.len = 16; | |
62 | strcpy(gs.s, "\0"); | |
63 | return gs; | |
64 | } | |
65 | ||
66 | /* Allocate and assign growable string */ | |
67 | struct gstr str_assign(const char *s) | |
68 | { | |
69 | struct gstr gs; | |
70 | gs.s = strdup(s); | |
71 | gs.len = strlen(s) + 1; | |
72 | return gs; | |
73 | } | |
74 | ||
75 | /* Free storage for growable string */ | |
76 | void str_free(struct gstr *gs) | |
77 | { | |
78 | if (gs->s) | |
79 | free(gs->s); | |
80 | gs->s = NULL; | |
81 | gs->len = 0; | |
82 | } | |
83 | ||
84 | /* Append to growable string */ | |
85 | void str_append(struct gstr *gs, const char *s) | |
86 | { | |
87 | size_t l = strlen(gs->s) + strlen(s) + 1; | |
88 | if (l > gs->len) { | |
89 | gs->s = realloc(gs->s, l); | |
90 | gs->len = l; | |
91 | } | |
92 | strcat(gs->s, s); | |
93 | } | |
94 | ||
95 | /* Append printf formatted string to growable string */ | |
96 | void str_printf(struct gstr *gs, const char *fmt, ...) | |
97 | { | |
98 | va_list ap; | |
99 | char s[10000]; /* big enough... */ | |
100 | va_start(ap, fmt); | |
101 | vsnprintf(s, sizeof(s), fmt, ap); | |
102 | str_append(gs, s); | |
103 | va_end(ap); | |
104 | } | |
105 | ||
4a4efbde | 106 | /* Retrieve value of growable string */ |
1da177e4 LT |
107 | const char *str_get(struct gstr *gs) |
108 | { | |
109 | return gs->s; | |
110 | } | |
111 |