Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(122)

Unified Diff: fusl/src/stdio/fmemopen.c

Issue 1714623002: [fusl] clang-format fusl (Closed) Base URL: git@github.com:domokit/mojo.git@master
Patch Set: headers too Created 4 years, 10 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
Index: fusl/src/stdio/fmemopen.c
diff --git a/fusl/src/stdio/fmemopen.c b/fusl/src/stdio/fmemopen.c
index 7c193a579ba4b5e5d780a63c2cce0e526276f8d3..a889c5399d4e51d5b9a9fdabff1b78fca9f5f61f 100644
--- a/fusl/src/stdio/fmemopen.c
+++ b/fusl/src/stdio/fmemopen.c
@@ -4,111 +4,120 @@
#include <inttypes.h>
struct cookie {
- size_t pos, len, size;
- unsigned char *buf;
- int mode;
+ size_t pos, len, size;
+ unsigned char* buf;
+ int mode;
};
-static off_t mseek(FILE *f, off_t off, int whence)
-{
- ssize_t base;
- struct cookie *c = f->cookie;
- if (whence>2U) {
-fail:
- errno = EINVAL;
- return -1;
- }
- base = (size_t [3]){0, c->pos, c->len}[whence];
- if (off < -base || off > (ssize_t)c->size-base) goto fail;
- return c->pos = base+off;
+static off_t mseek(FILE* f, off_t off, int whence) {
+ ssize_t base;
+ struct cookie* c = f->cookie;
+ if (whence > 2U) {
+ fail:
+ errno = EINVAL;
+ return -1;
+ }
+ base = (size_t[3]){0, c->pos, c->len}[whence];
+ if (off < -base || off > (ssize_t)c->size - base)
+ goto fail;
+ return c->pos = base + off;
}
-static size_t mread(FILE *f, unsigned char *buf, size_t len)
-{
- struct cookie *c = f->cookie;
- size_t rem = c->len - c->pos;
- if (c->pos > c->len) rem = 0;
- if (len > rem) {
- len = rem;
- f->flags |= F_EOF;
- }
- memcpy(buf, c->buf+c->pos, len);
- c->pos += len;
- rem -= len;
- if (rem > f->buf_size) rem = f->buf_size;
- f->rpos = f->buf;
- f->rend = f->buf + rem;
- memcpy(f->rpos, c->buf+c->pos, rem);
- c->pos += rem;
- return len;
+static size_t mread(FILE* f, unsigned char* buf, size_t len) {
+ struct cookie* c = f->cookie;
+ size_t rem = c->len - c->pos;
+ if (c->pos > c->len)
+ rem = 0;
+ if (len > rem) {
+ len = rem;
+ f->flags |= F_EOF;
+ }
+ memcpy(buf, c->buf + c->pos, len);
+ c->pos += len;
+ rem -= len;
+ if (rem > f->buf_size)
+ rem = f->buf_size;
+ f->rpos = f->buf;
+ f->rend = f->buf + rem;
+ memcpy(f->rpos, c->buf + c->pos, rem);
+ c->pos += rem;
+ return len;
}
-static size_t mwrite(FILE *f, const unsigned char *buf, size_t len)
-{
- struct cookie *c = f->cookie;
- size_t rem;
- size_t len2 = f->wpos - f->wbase;
- if (len2) {
- f->wpos = f->wbase;
- if (mwrite(f, f->wpos, len2) < len2) return 0;
- }
- if (c->mode == 'a') c->pos = c->len;
- rem = c->size - c->pos;
- if (len > rem) len = rem;
- memcpy(c->buf+c->pos, buf, len);
- c->pos += len;
- if (c->pos > c->len) {
- c->len = c->pos;
- if (c->len < c->size) c->buf[c->len] = 0;
- else if ((f->flags&F_NORD) && c->size) c->buf[c->size-1] = 0;
- }
- return len;
+static size_t mwrite(FILE* f, const unsigned char* buf, size_t len) {
+ struct cookie* c = f->cookie;
+ size_t rem;
+ size_t len2 = f->wpos - f->wbase;
+ if (len2) {
+ f->wpos = f->wbase;
+ if (mwrite(f, f->wpos, len2) < len2)
+ return 0;
+ }
+ if (c->mode == 'a')
+ c->pos = c->len;
+ rem = c->size - c->pos;
+ if (len > rem)
+ len = rem;
+ memcpy(c->buf + c->pos, buf, len);
+ c->pos += len;
+ if (c->pos > c->len) {
+ c->len = c->pos;
+ if (c->len < c->size)
+ c->buf[c->len] = 0;
+ else if ((f->flags & F_NORD) && c->size)
+ c->buf[c->size - 1] = 0;
+ }
+ return len;
}
-static int mclose(FILE *m)
-{
- return 0;
+static int mclose(FILE* m) {
+ return 0;
}
-FILE *fmemopen(void *restrict buf, size_t size, const char *restrict mode)
-{
- FILE *f;
- struct cookie *c;
- int plus = !!strchr(mode, '+');
-
- if (!size || !strchr("rwa", *mode)) {
- errno = EINVAL;
- return 0;
- }
+FILE* fmemopen(void* restrict buf, size_t size, const char* restrict mode) {
+ FILE* f;
+ struct cookie* c;
+ int plus = !!strchr(mode, '+');
- if (!buf && size > SIZE_MAX-sizeof(FILE)-BUFSIZ-UNGET) {
- errno = ENOMEM;
- return 0;
- }
+ if (!size || !strchr("rwa", *mode)) {
+ errno = EINVAL;
+ return 0;
+ }
- f = calloc(sizeof *f + sizeof *c + UNGET + BUFSIZ + (buf?0:size), 1);
- if (!f) return 0;
- f->cookie = c = (void *)(f+1);
- f->fd = -1;
- f->lbf = EOF;
- f->buf = (unsigned char *)(c+1) + UNGET;
- f->buf_size = BUFSIZ;
- if (!buf) buf = f->buf + BUFSIZ;
+ if (!buf && size > SIZE_MAX - sizeof(FILE) - BUFSIZ - UNGET) {
+ errno = ENOMEM;
+ return 0;
+ }
- c->buf = buf;
- c->size = size;
- c->mode = *mode;
-
- if (!plus) f->flags = (*mode == 'r') ? F_NOWR : F_NORD;
- if (*mode == 'r') c->len = size;
- else if (*mode == 'a') c->len = c->pos = strnlen(buf, size);
+ f = calloc(sizeof *f + sizeof *c + UNGET + BUFSIZ + (buf ? 0 : size), 1);
+ if (!f)
+ return 0;
+ f->cookie = c = (void*)(f + 1);
+ f->fd = -1;
+ f->lbf = EOF;
+ f->buf = (unsigned char*)(c + 1) + UNGET;
+ f->buf_size = BUFSIZ;
+ if (!buf)
+ buf = f->buf + BUFSIZ;
- f->read = mread;
- f->write = mwrite;
- f->seek = mseek;
- f->close = mclose;
+ c->buf = buf;
+ c->size = size;
+ c->mode = *mode;
- if (!libc.threaded) f->lock = -1;
+ if (!plus)
+ f->flags = (*mode == 'r') ? F_NOWR : F_NORD;
+ if (*mode == 'r')
+ c->len = size;
+ else if (*mode == 'a')
+ c->len = c->pos = strnlen(buf, size);
- return __ofl_add(f);
+ f->read = mread;
+ f->write = mwrite;
+ f->seek = mseek;
+ f->close = mclose;
+
+ if (!libc.threaded)
+ f->lock = -1;
+
+ return __ofl_add(f);
}

Powered by Google App Engine
This is Rietveld 408576698