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authorAxel Beckert <abe@deuxchevaux.org>2022-05-08 05:47:24 +0200
committerAxel Beckert <abe@deuxchevaux.org>2022-05-08 05:47:24 +0200
commit5615b53bbf3578a91bab8658b38d0352433510e7 (patch)
treebdf29751a810afd43ab7497d47229ba64d5707e8 /Src/input.c
parent514524ee7be382a740e53e2a7c0247f2d68d7730 (diff)
parent9529af723604dfe1c8152db11e1d216621c898d5 (diff)
downloadzsh-5615b53bbf3578a91bab8658b38d0352433510e7.tar.gz
zsh-5615b53bbf3578a91bab8658b38d0352433510e7.zip
Update upstream source from tag 'upstream/5.8.1.3-test'
Update to upstream version '5.8.1.3-test' with Debian dir db59cf6a81e7a92e349f815dc21759ccb7ed689a
Diffstat (limited to 'Src/input.c')
-rw-r--r--Src/input.c24
1 files changed, 23 insertions, 1 deletions
diff --git a/Src/input.c b/Src/input.c
index c59232681..9898a7177 100644
--- a/Src/input.c
+++ b/Src/input.c
@@ -217,12 +217,34 @@ shinbufrestore(void)
static int
shingetchar(void)
{
- int nread;
+ int nread, rsize = isset(SHINSTDIN) ? 1 : SHINBUFSIZE;
if (shinbufptr < shinbufendptr)
return STOUC(*shinbufptr++);
shinbufreset();
+#ifdef USE_LSEEK
+ if (rsize == 1 && lseek(SHIN, 0, SEEK_CUR) != (off_t)-1)
+ rsize = SHINBUFSIZE;
+ if (rsize > 1) {
+ do {
+ errno = 0;
+ nread = read(SHIN, shinbuffer, rsize);
+ } while (nread < 0 && errno == EINTR);
+ if (nread <= 0)
+ return -1;
+ if (isset(SHINSTDIN) &&
+ (shinbufendptr = memchr(shinbuffer, '\n', nread))) {
+ shinbufendptr++;
+ rsize = (shinbufendptr - shinbuffer);
+ if (nread > rsize &&
+ lseek(SHIN, -(nread - rsize), SEEK_CUR) < 0)
+ zerr("lseek(%d, %d): %e", SHIN, -(nread - rsize), errno);
+ } else
+ shinbufendptr = shinbuffer + nread;
+ return STOUC(*shinbufptr++);
+ }
+#endif
for (;;) {
errno = 0;
nread = read(SHIN, shinbufendptr, 1);