From 355cfc1b95ca65e7ab9ada5b59a82ed4f651556f Mon Sep 17 00:00:00 2001
From: Bart Schaefer <schaefer@zsh.org>
Date: Sat, 16 Sep 2023 13:08:59 -0700
Subject: 52153: mapfile without HAVE_MMAP should not trim newlines

---
 Src/input.c | 44 +++++++++++++++++++++++++++++++++++++-------
 1 file changed, 37 insertions(+), 7 deletions(-)

(limited to 'Src/input.c')

diff --git a/Src/input.c b/Src/input.c
index 0da065e51..8d7f44d7c 100644
--- a/Src/input.c
+++ b/Src/input.c
@@ -610,11 +610,11 @@ inungetc(int c)
     }
 }
 
-/* stuff a whole file into the input queue and print it */
+/* stuff a whole file into memory and return it */
 
 /**/
-int
-stuff(char *fn)
+off_t
+zstuff(char **out, const char *fn)
 {
     FILE *in;
     char *buf;
@@ -622,20 +622,50 @@ stuff(char *fn)
 
     if (!(in = fopen(unmeta(fn), "r"))) {
 	zerr("can't open %s", fn);
-	return 1;
+	return -1;
     }
+    queue_signals();
     fseek(in, 0, SEEK_END);
     len = ftell(in);
     fseek(in, 0, SEEK_SET);
     buf = (char *)zalloc(len + 1);
-    if (!(fread(buf, len, 1, in))) {
+    if (len && !(fread(buf, len, 1, in))) {
 	zerr("read error on %s", fn);
 	fclose(in);
-	zfree(buf, len + 1);
-	return 1;
+	unqueue_signals();
+	return -1;
     }
     fclose(in);
     buf[len] = '\0';
+    *out = buf;
+    unqueue_signals();
+    return len;
+}
+
+/**/
+char *
+ztuff(const char *fn)
+{
+    char *buf;
+    off_t len = zstuff(&buf, fn);
+    if (len > 0)
+	return buf;
+    else
+	return NULL;
+}
+
+/* stuff a whole file into the input queue and print it */
+
+/**/
+int
+stuff(char *fn)
+{
+    char *buf;
+    off_t len = zstuff(&buf, fn);
+
+    if (len < 0)
+	return 1;
+    
     fwrite(buf, len, 1, stderr);
     fflush(stderr);
     inputsetline(metafy(buf, len, META_REALLOC), INP_FREE);
-- 
cgit 1.4.1