From e376d454bb70ed41bbc3eb0358d37fa30c94358d Mon Sep 17 00:00:00 2001 From: Denis Vlasenko Date: Wed, 20 Feb 2008 22:23:24 +0000 Subject: libbb: introduce and use nonblock_safe_read(). Yay! Our shells are immune from this nasty O_NONBLOCK now! function old new delta nonblock_safe_read - 78 +78 file_get 276 295 +19 generateMTFValues 428 435 +7 read_line_input 1776 1772 -4 preadbuffer 543 450 -93 ------------------------------------------------------------------------------ (add/remove: 1/0 grow/shrink: 2/2 up/down: 104/-97) Total: 7 bytes text data bss dec hex filename 615190 715 23924 639829 9c355 busybox_old 615168 715 23924 639807 9c33f busybox_unstripped --- include/libbb.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include') diff --git a/include/libbb.h b/include/libbb.h index a91eac466..eb8b2f620 100644 --- a/include/libbb.h +++ b/include/libbb.h @@ -475,6 +475,7 @@ extern void *xzalloc(size_t size); extern void *xrealloc(void *old, size_t size); extern ssize_t safe_read(int fd, void *buf, size_t count); +extern ssize_t nonblock_safe_read(int fd, void *buf, size_t count); extern ssize_t full_read(int fd, void *buf, size_t count); extern void xread(int fd, void *buf, size_t count); extern unsigned char xread_char(int fd); @@ -482,6 +483,7 @@ extern unsigned char xread_char(int fd); extern char *reads(int fd, char *buf, size_t count); // Read one line a-la fgets. Reads byte-by-byte. // Useful when it is important to not read ahead. +// Bytes are appended to pfx (which must be malloced, or NULL). extern char *xmalloc_reads(int fd, char *pfx); extern ssize_t read_close(int fd, void *buf, size_t count); extern ssize_t open_read_close(const char *filename, void *buf, size_t count); -- cgit v1.2.3