1 | /* |
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2 | * Copyright (C) 2002-2005 Roman Zippel <zippel@linux-m68k.org> |
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3 | * Copyright (C) 2002-2005 Sam Ravnborg <sam@ravnborg.org> |
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4 | * |
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5 | * Released under the terms of the GNU GPL v2.0. |
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6 | */ |
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7 | |
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8 | #include <string.h> |
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9 | #include "lkc.h" |
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10 | |
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11 | /* file already present in list? If not add it */ |
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12 | struct file *file_lookup(const char *name) |
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13 | { |
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14 | struct file *file; |
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15 | |
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16 | for (file = file_list; file; file = file->next) { |
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17 | if (!strcmp(name, file->name)) |
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18 | return file; |
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19 | } |
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20 | |
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21 | file = malloc(sizeof(*file)); |
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22 | memset(file, 0, sizeof(*file)); |
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23 | file->name = strdup(name); |
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24 | file->next = file_list; |
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25 | file_list = file; |
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26 | return file; |
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27 | } |
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28 | |
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29 | /* Allocate initial growable sting */ |
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30 | struct gstr str_new(void) |
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31 | { |
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32 | struct gstr gs; |
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33 | gs.s = malloc(sizeof(char) * 64); |
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34 | gs.len = 16; |
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35 | strcpy(gs.s, "\0"); |
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36 | return gs; |
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37 | } |
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38 | |
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39 | /* Allocate and assign growable string */ |
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40 | struct gstr str_assign(const char *s) |
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41 | { |
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42 | struct gstr gs; |
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43 | gs.s = strdup(s); |
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44 | gs.len = strlen(s) + 1; |
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45 | return gs; |
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46 | } |
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47 | |
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48 | /* Free storage for growable string */ |
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49 | void str_free(struct gstr *gs) |
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50 | { |
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51 | if (gs->s) |
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52 | free(gs->s); |
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53 | gs->s = NULL; |
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54 | gs->len = 0; |
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55 | } |
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56 | |
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57 | /* Append to growable string */ |
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58 | void str_append(struct gstr *gs, const char *s) |
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59 | { |
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60 | size_t l = strlen(gs->s) + strlen(s) + 1; |
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61 | if (l > gs->len) { |
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62 | gs->s = realloc(gs->s, l); |
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63 | gs->len = l; |
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64 | } |
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65 | strcat(gs->s, s); |
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66 | } |
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67 | |
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68 | /* Append printf formatted string to growable string */ |
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69 | void str_printf(struct gstr *gs, const char *fmt, ...) |
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70 | { |
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71 | va_list ap; |
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72 | char s[10000]; /* big enough... */ |
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73 | va_start(ap, fmt); |
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74 | vsnprintf(s, sizeof(s), fmt, ap); |
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75 | str_append(gs, s); |
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76 | va_end(ap); |
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77 | } |
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78 | |
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79 | /* Retrieve value of growable string */ |
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80 | const char *str_get(struct gstr *gs) |
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81 | { |
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82 | return gs->s; |
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83 | } |
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84 | |
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