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Commit | Line | Data |
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0c874100 | 1 | // SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | /* |
3 | * Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org> | |
4 | * Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org> | |
1da177e4 LT |
5 | */ |
6 | ||
10a4b277 | 7 | #include <stdarg.h> |
02d95c96 | 8 | #include <stdlib.h> |
1da177e4 LT |
9 | #include <string.h> |
10 | #include "lkc.h" | |
11 | ||
12 | /* file already present in list? If not add it */ | |
13 | struct file *file_lookup(const char *name) | |
14 | { | |
15 | struct file *file; | |
16 | ||
17 | for (file = file_list; file; file = file->next) { | |
c7abe863 | 18 | if (!strcmp(name, file->name)) { |
1da177e4 | 19 | return file; |
c7abe863 | 20 | } |
1da177e4 LT |
21 | } |
22 | ||
177acf78 | 23 | file = xmalloc(sizeof(*file)); |
1da177e4 | 24 | memset(file, 0, sizeof(*file)); |
bb222cee | 25 | file->name = xstrdup(name); |
1da177e4 LT |
26 | file->next = file_list; |
27 | file_list = file; | |
28 | return file; | |
29 | } | |
30 | ||
31a2d31d | 31 | /* Allocate initial growable string */ |
1da177e4 LT |
32 | struct gstr str_new(void) |
33 | { | |
34 | struct gstr gs; | |
177acf78 | 35 | gs.s = xmalloc(sizeof(char) * 64); |
107f43a0 | 36 | gs.len = 64; |
da60fbbc | 37 | gs.max_width = 0; |
1da177e4 LT |
38 | strcpy(gs.s, "\0"); |
39 | return gs; | |
40 | } | |
41 | ||
1da177e4 LT |
42 | /* Free storage for growable string */ |
43 | void str_free(struct gstr *gs) | |
44 | { | |
45 | if (gs->s) | |
46 | free(gs->s); | |
47 | gs->s = NULL; | |
48 | gs->len = 0; | |
49 | } | |
50 | ||
51 | /* Append to growable string */ | |
52 | void str_append(struct gstr *gs, const char *s) | |
53 | { | |
a67cb131 SR |
54 | size_t l; |
55 | if (s) { | |
56 | l = strlen(gs->s) + strlen(s) + 1; | |
57 | if (l > gs->len) { | |
d717f24d | 58 | gs->s = xrealloc(gs->s, l); |
a67cb131 SR |
59 | gs->len = l; |
60 | } | |
61 | strcat(gs->s, s); | |
1da177e4 | 62 | } |
1da177e4 LT |
63 | } |
64 | ||
65 | /* Append printf formatted string to growable string */ | |
66 | void str_printf(struct gstr *gs, const char *fmt, ...) | |
67 | { | |
68 | va_list ap; | |
69 | char s[10000]; /* big enough... */ | |
70 | va_start(ap, fmt); | |
71 | vsnprintf(s, sizeof(s), fmt, ap); | |
72 | str_append(gs, s); | |
73 | va_end(ap); | |
74 | } | |
75 | ||
4a4efbde | 76 | /* Retrieve value of growable string */ |
1da177e4 LT |
77 | const char *str_get(struct gstr *gs) |
78 | { | |
79 | return gs->s; | |
80 | } | |
81 | ||
177acf78 AC |
82 | void *xmalloc(size_t size) |
83 | { | |
84 | void *p = malloc(size); | |
85 | if (p) | |
86 | return p; | |
87 | fprintf(stderr, "Out of memory.\n"); | |
88 | exit(1); | |
89 | } | |
90 | ||
91 | void *xcalloc(size_t nmemb, size_t size) | |
92 | { | |
93 | void *p = calloc(nmemb, size); | |
94 | if (p) | |
95 | return p; | |
96 | fprintf(stderr, "Out of memory.\n"); | |
97 | exit(1); | |
98 | } | |
d717f24d MY |
99 | |
100 | void *xrealloc(void *p, size_t size) | |
101 | { | |
102 | p = realloc(p, size); | |
103 | if (p) | |
104 | return p; | |
105 | fprintf(stderr, "Out of memory.\n"); | |
106 | exit(1); | |
107 | } | |
cd81fc82 MY |
108 | |
109 | char *xstrdup(const char *s) | |
110 | { | |
111 | char *p; | |
112 | ||
113 | p = strdup(s); | |
114 | if (p) | |
115 | return p; | |
116 | fprintf(stderr, "Out of memory.\n"); | |
117 | exit(1); | |
118 | } | |
104daea1 MY |
119 | |
120 | char *xstrndup(const char *s, size_t n) | |
121 | { | |
122 | char *p; | |
123 | ||
124 | p = strndup(s, n); | |
125 | if (p) | |
126 | return p; | |
127 | fprintf(stderr, "Out of memory.\n"); | |
128 | exit(1); | |
129 | } |