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