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path: root/debian/patches/0003-Use-get_current_dir_name-over-PATHMAX.patch
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From: Chris Lamb <lamby@debian.org>
Date: Wed, 24 Jan 2018 22:06:35 +1100
Subject: Use get_current_dir_name over PATHMAX, etc.

---
 src/rdb.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/src/rdb.c b/src/rdb.c
index 710e04f..4039954 100644
--- a/src/rdb.c
+++ b/src/rdb.c
@@ -1392,7 +1392,6 @@ werr: /* Write error. */
 /* Save the DB on disk. Return C_ERR on error, C_OK on success. */
 int rdbSave(int req, char *filename, rdbSaveInfo *rsi) {
     char tmpfile[256];
-    char cwd[MAXPATHLEN]; /* Current working dir path for error messages. */
     FILE *fp = NULL;
     rio rdb;
     int error = 0;
@@ -1402,13 +1401,14 @@ int rdbSave(int req, char *filename, rdbSaveInfo *rsi) {
     fp = fopen(tmpfile,"w");
     if (!fp) {
         char *str_err = strerror(errno);
-        char *cwdp = getcwd(cwd,MAXPATHLEN);
+        char *cwdp = get_current_dir_name();
         serverLog(LL_WARNING,
             "Failed opening the temp RDB file %s (in server root dir %s) "
             "for saving: %s",
             tmpfile,
             cwdp ? cwdp : "unknown",
             str_err);
+        zfree(cwdp);
         return C_ERR;
     }
 
@@ -1434,7 +1434,7 @@ int rdbSave(int req, char *filename, rdbSaveInfo *rsi) {
      * if the generate DB file is ok. */
     if (rename(tmpfile,filename) == -1) {
         char *str_err = strerror(errno);
-        char *cwdp = getcwd(cwd,MAXPATHLEN);
+        char *cwdp = get_current_dir_name();
         serverLog(LL_WARNING,
             "Error moving temp DB file %s on the final "
             "destination %s (in server root dir %s): %s",
@@ -1444,6 +1444,7 @@ int rdbSave(int req, char *filename, rdbSaveInfo *rsi) {
             str_err);
         unlink(tmpfile);
         stopSaving(0);
+        zfree(cwdp);
         return C_ERR;
     }
     if (fsyncFileDir(filename) == -1) { err_op = "fsyncFileDir"; goto werr; }