| 1 | #include "stdio_impl.h" |
| 2 | #include <string.h> |
| 3 | |
| 4 | size_t __fwritex(const unsigned char *restrict s, size_t l, FILE *restrict f) |
| 5 | { |
| 6 | size_t i=0; |
| 7 | |
| 8 | if (!f->wend && __towrite(f)) return 0; |
| 9 | |
| 10 | if (l > f->wend - f->wpos) return f->write(f, s, l); |
| 11 | |
| 12 | if (f->lbf >= 0) { |
| 13 | |
| 14 | for (i=l; i && s[i-1] != '\n'; i--); |
| 15 | if (i) { |
| 16 | size_t n = f->write(f, s, i); |
| 17 | if (n < i) return n; |
| 18 | s += i; |
| 19 | l -= i; |
| 20 | } |
| 21 | } |
| 22 | |
| 23 | memcpy(f->wpos, s, l); |
| 24 | f->wpos += l; |
| 25 | return l+i; |
| 26 | } |
| 27 | |
| 28 | size_t fwrite(const void *restrict src, size_t size, size_t nmemb, FILE *restrict f) |
| 29 | { |
| 30 | size_t k, l = size*nmemb; |
| 31 | if (!size) nmemb = 0; |
| |
| |
| 32 | FLOCK(f)int __need_unlock = ((f)->lock>=0 ? __lockfile((f)) : 0
); |
| 33 | k = __fwritex(src, l, f); |
| 34 | FUNLOCK(f)if (__need_unlock) __unlockfile((f)); else; |
| 35 | return k==l ? nmemb : k/size; |
| |
| |
| 36 | } |
| 37 | |
| 38 | weak_alias(fwrite, fwrite_unlocked)extern __typeof(fwrite) fwrite_unlocked __attribute__((weak, alias
("fwrite"))); |