Lines Matching defs:buf
11 unsigned char *buf;
18 unsigned char buf[UNGET+BUFSIZ], buf2[];
35 static size_t mread(FILE *f, unsigned char *buf, size_t len)
44 memcpy(buf, c->buf+c->pos, len);
48 f->rpos = f->buf;
49 f->rend = f->buf + rem;
50 memcpy(f->rpos, c->buf+c->pos, rem);
55 // We should not double fill f->buf when fread is filling buffer
56 static size_t mreadx(FILE *f, unsigned char *buf, size_t len)
65 memcpy(buf, c->buf+c->pos, len);
70 static size_t mwrite(FILE *f, const unsigned char *buf, size_t len)
82 memcpy(c->buf+c->pos, buf, len);
86 if (c->len < c->size) c->buf[c->len] = 0;
87 else if ((f->flags&F_NORD) && c->size) c->buf[c->size-1] = 0;
97 FILE *fmemopen(void *restrict buf, size_t size, const char *restrict mode)
107 if (!buf && size > PTRDIFF_MAX) {
112 f = malloc(sizeof *f + (buf?0:size));
114 memset(f, 0, offsetof(struct mem_FILE, buf));
118 f->f.buf = f->buf + UNGET;
119 f->f.buf_size = sizeof f->buf - UNGET;
120 if (!buf) {
121 buf = f->buf2;
122 memset(buf, 0, size);
125 f->c.buf = buf;
131 else if (*mode == 'a') f->c.len = f->c.pos = strnlen(buf, size);
132 else if (plus) *f->c.buf = 0;