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tutil.c - ics2txt - convert icalendar .ics file to plain text |
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git clone git://bitreich.org/ics2txt git://enlrupgkhuxnvlhsf6lc3fziv5h2hhfrinws65d7roiv6bfj7d652fid.onion/ics2txt (git://bitreich.org) |
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README |
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--- |
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tutil.c (1205B) |
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--- |
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1 #include "util.h" |
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2 |
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3 #include <errno.h> |
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4 #include <stdint.h> |
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5 #include <stdlib.h> |
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6 #include <string.h> |
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7 |
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8 size_t |
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9 strlcpy(char *buf, char const *str, size_t sz) |
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10 { |
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11 size_t len, cpy; |
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12 |
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13 len = strlen(str); |
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14 cpy = (len > sz) ? (sz) : (len); |
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15 memcpy(buf, str, cpy + 1); |
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16 buf[sz - 1] = '\0'; |
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17 return len; |
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18 } |
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19 |
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20 char * |
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21 strsep(char **str_p, char const *sep) |
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22 { |
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23 char *s, *prev; |
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24 |
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25 if (*str_p == NULL) |
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26 return NULL; |
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27 |
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28 for (s = prev = *str_p; strchr(sep, *s) == NULL; s++) |
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29 continue; |
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30 |
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31 if (*s == '\0') { |
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32 *str_p = NULL; |
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33 } else { |
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34 *s = '\0'; |
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35 *str_p = s + 1; |
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36 } |
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37 return prev; |
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38 } |
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39 |
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40 void |
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41 strchomp(char *line) |
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42 { |
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43 size_t len; |
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44 |
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45 len = strlen(line); |
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46 if (len > 0 && line[len - 1] == '\n') |
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47 line[len-- - 1] = '\0'; |
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48 if (len > 0 && line[len - 1] == '\r') |
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49 line[len-- - 1] = '\0'; |
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50 } |
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51 |
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52 int |
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53 strappend(char **base_p, char const *s) |
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54 { |
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55 size_t base_len, s_len; |
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56 void *v; |
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57 |
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58 base_len = (*base_p == NULL) ? (0) : (strlen(*base_p)); |
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59 s_len = strlen(s); |
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60 |
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61 if ((v = realloc(*base_p, base_len + s_len + 1)) == NULL) |
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62 return -1; |
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63 |
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64 *base_p = v; |
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65 memcpy(*base_p + base_len, s, s_len + 1); |
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66 return 0; |
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67 } |
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68 |
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69 void * |
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70 reallocarray(void *buf, size_t len, size_t sz) |
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71 { |
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72 if (SIZE_MAX / len < sz) |
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73 return errno=ERANGE, NULL; |
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74 return realloc(buf, len * sz); |
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75 } |
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