[Rpm-maint] [PATCH] parseSpec: use getline instead of fgetc

[Gleb Fotengauer-Malinovskiy]

Replace home-grown buggy imitation of getline(3) with use of getline(3).

Fixes: 92a8babf1b46 ("Remove hopefully the last static buffer in rpm spec reading")
Closes: https://github.com/rpm-software-management/rpm/issues/175
Signed-off-by: Gleb Fotengauer-Malinovskiy <glebfm at altlinux.org>
---
 build/parseSpec.c | 19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

diff --git a/build/parseSpec.c b/build/parseSpec.c
index 20c4555..2928e85 100644
--- a/build/parseSpec.c
+++ b/build/parseSpec.c
@@ -32,7 +32,7 @@ typedef struct OpenFileInfo {
     FILE *fp;
     int lineNum;
     char *readBuf;
-    int readBufLen;
+    size_t readBufLen;
     const char * readPtr;
     struct OpenFileInfo * next;
 } OFI_t;
@@ -323,22 +323,7 @@ retry:
 
     /* Make sure we have something in the read buffer */
     if (!(ofi->readPtr && *(ofi->readPtr))) {
-	int c;
-	int i = 0;
-
-	while ((c = fgetc(ofi->fp)) != EOF) {
-	    if (i >= ofi->readBufLen - 1) {
-		ofi->readBufLen += BUFSIZ;
-		ofi->readBuf = xrealloc(ofi->readBuf, ofi->readBufLen);
-	    }
-	    ofi->readBuf[i++] = c;
-	    if (c == '\n') {
-		ofi->readBuf[i] = '\0';
-		break;
-	    }
-	}
-
-	if (!i) {
+	if (getline(&ofi->readBuf, &ofi->readBufLen, ofi->fp) <= 0) {
 	    /* EOF, remove this file from the stack */
 	    ofi = popOFI(spec);
 

-- 
glebfm