X-Git-Url: https://git.cameronkatri.com/cgit.git/blobdiff_plain/6102bcfce46fd357566941d565b95f78510af79b..5a36c2a291a00b59b8ec2f112453e117797c2fe5:/cache.c diff --git a/cache.c b/cache.c index add647e..d7a8d5a 100644 --- a/cache.c +++ b/cache.c @@ -51,7 +51,7 @@ static int open_slot(struct cache_slot *slot) if (fstat(slot->cache_fd, &slot->cache_st)) return errno; - slot->bufsize = read(slot->cache_fd, slot->buf, sizeof(slot->buf)); + slot->bufsize = xread(slot->cache_fd, slot->buf, sizeof(slot->buf)); if (slot->bufsize < 0) return errno; @@ -66,27 +66,34 @@ static int open_slot(struct cache_slot *slot) } /* Close the active cache slot */ -static void close_slot(struct cache_slot *slot) +static int close_slot(struct cache_slot *slot) { + int err = 0; if (slot->cache_fd > 0) { - close(slot->cache_fd); - slot->cache_fd = -1; + if (close(slot->cache_fd)) + err = errno; + else + slot->cache_fd = -1; } + return err; } /* Print the content of the active cache slot (but skip the key). */ static int print_slot(struct cache_slot *slot) { - ssize_t i, j = 0; + ssize_t i, j; i = lseek(slot->cache_fd, slot->keylen + 1, SEEK_SET); if (i != slot->keylen + 1) return errno; - while((i=read(slot->cache_fd, slot->buf, sizeof(slot->buf))) > 0) - j = write(STDOUT_FILENO, slot->buf, i); + do { + i = j = xread(slot->cache_fd, slot->buf, sizeof(slot->buf)); + if (i > 0) + j = xwrite(STDOUT_FILENO, slot->buf, i); + } while (i > 0 && j == i); - if (j < 0) + if (i < 0 || j != i) return errno; else return 0; @@ -116,12 +123,16 @@ static int is_modified(struct cache_slot *slot) } /* Close an open lockfile */ -static void close_lock(struct cache_slot *slot) +static int close_lock(struct cache_slot *slot) { + int err = 0; if (slot->lock_fd > 0) { - close(slot->lock_fd); - slot->lock_fd = -1; + if (close(slot->lock_fd)) + err = errno; + else + slot->lock_fd = -1; } + return err; } /* Create a lockfile used to store the generated content for a cache @@ -134,7 +145,8 @@ static int lock_slot(struct cache_slot *slot) S_IRUSR|S_IWUSR); if (slot->lock_fd == -1) return errno; - write(slot->lock_fd, slot->key, slot->keylen + 1); + if (xwrite(slot->lock_fd, slot->key, slot->keylen + 1) < 0) + return errno; return 0; } @@ -150,7 +162,11 @@ static int unlock_slot(struct cache_slot *slot, int replace_old_slot) err = rename(slot->lock_name, slot->cache_name); else err = unlink(slot->lock_name); - return err; + + if (err) + return errno; + + return 0; } /* Generate the content for the current cache slot by redirecting @@ -177,7 +193,9 @@ static int fill_slot(struct cache_slot *slot) return errno; /* Close the temporary filedescriptor */ - close(tmp); + if (close(tmp)) + return errno; + return 0; } @@ -237,9 +255,14 @@ static int process_slot(struct cache_slot *slot) } } } - print_slot(slot); + if ((err = print_slot(slot)) != 0) { + cache_log("[cgit] error printing cache %s: %s (%d)\n", + slot->cache_name, + strerror(err), + err); + } close_slot(slot); - return 0; + return err; } /* If the cache slot does not exist (or its key doesn't match the @@ -274,7 +297,12 @@ static int process_slot(struct cache_slot *slot) // the lock file. slot->cache_fd = slot->lock_fd; unlock_slot(slot, 1); - err = print_slot(slot); + if ((err = print_slot(slot)) != 0) { + cache_log("[cgit] error printing cache %s: %s (%d)\n", + slot->cache_name, + strerror(err), + err); + } close_slot(slot); return err; } @@ -388,11 +416,11 @@ int cache_ls(const char *path) fullname, strerror(err), err); continue; } - printf("%s %s %10lld %s\n", + printf("%s %s %10"PRIuMAX" %s\n", name, sprintftime("%Y-%m-%d %H:%M:%S", slot.cache_st.st_mtime), - slot.cache_st.st_size, + (uintmax_t)slot.cache_st.st_size, slot.buf); close_slot(&slot); }