| 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 | /* Allocate initial growable sting */ |
| 30 | struct gstr str_new(void) |
| 31 | { |
| 32 | struct gstr gs; |
| 33 | gs.s = malloc(sizeof(char) * 64); |
| 34 | gs.len = 16; |
| 35 | strcpy(gs.s, "\0"); |
| 36 | return gs; |
| 37 | } |
| 38 | |
| 39 | /* Allocate and assign growable string */ |
| 40 | struct gstr str_assign(const char *s) |
| 41 | { |
| 42 | struct gstr gs; |
| 43 | gs.s = strdup(s); |
| 44 | gs.len = strlen(s) + 1; |
| 45 | return gs; |
| 46 | } |
| 47 | |
| 48 | /* Free storage for growable string */ |
| 49 | void str_free(struct gstr *gs) |
| 50 | { |
| 51 | if (gs->s) |
| 52 | free(gs->s); |
| 53 | gs->s = NULL; |
| 54 | gs->len = 0; |
| 55 | } |
| 56 | |
| 57 | /* Append to growable string */ |
| 58 | void str_append(struct gstr *gs, const char *s) |
| 59 | { |
| 60 | size_t l = strlen(gs->s) + strlen(s) + 1; |
| 61 | if (l > gs->len) { |
| 62 | gs->s = realloc(gs->s, l); |
| 63 | gs->len = l; |
| 64 | } |
| 65 | strcat(gs->s, s); |
| 66 | } |
| 67 | |
| 68 | /* Append printf formatted string to growable string */ |
| 69 | void str_printf(struct gstr *gs, const char *fmt, ...) |
| 70 | { |
| 71 | va_list ap; |
| 72 | char s[10000]; /* big enough... */ |
| 73 | va_start(ap, fmt); |
| 74 | vsnprintf(s, sizeof(s), fmt, ap); |
| 75 | str_append(gs, s); |
| 76 | va_end(ap); |
| 77 | } |
| 78 | |
| 79 | /* Retrieve value of growable string */ |
| 80 | const char *str_get(struct gstr *gs) |
| 81 | { |
| 82 | return gs->s; |
| 83 | } |
| 84 | |
| 85 | |
