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-rw-r--r--src/bin/pg_dump/pg_backup_archiver.c4
-rw-r--r--src/bin/pg_dump/pg_backup_tar.c2
2 files changed, 6 insertions, 0 deletions
diff --git a/src/bin/pg_dump/pg_backup_archiver.c b/src/bin/pg_dump/pg_backup_archiver.c
index d1faa70d78d..e976def42aa 100644
--- a/src/bin/pg_dump/pg_backup_archiver.c
+++ b/src/bin/pg_dump/pg_backup_archiver.c
@@ -1507,6 +1507,7 @@ archputs(const char *s, Archive *AH)
int
archprintf(Archive *AH, const char *fmt,...)
{
+ int save_errno = errno;
char *p;
size_t len = 128; /* initial assumption about buffer size */
size_t cnt;
@@ -1519,6 +1520,7 @@ archprintf(Archive *AH, const char *fmt,...)
p = (char *) pg_malloc(len);
/* Try to format the data. */
+ errno = save_errno;
va_start(args, fmt);
cnt = pvsnprintf(p, len, fmt, args);
va_end(args);
@@ -1640,6 +1642,7 @@ RestoreOutput(ArchiveHandle *AH, OutputContext savedContext)
int
ahprintf(ArchiveHandle *AH, const char *fmt,...)
{
+ int save_errno = errno;
char *p;
size_t len = 128; /* initial assumption about buffer size */
size_t cnt;
@@ -1652,6 +1655,7 @@ ahprintf(ArchiveHandle *AH, const char *fmt,...)
p = (char *) pg_malloc(len);
/* Try to format the data. */
+ errno = save_errno;
va_start(args, fmt);
cnt = pvsnprintf(p, len, fmt, args);
va_end(args);
diff --git a/src/bin/pg_dump/pg_backup_tar.c b/src/bin/pg_dump/pg_backup_tar.c
index 007be1298fb..407a56d8d4f 100644
--- a/src/bin/pg_dump/pg_backup_tar.c
+++ b/src/bin/pg_dump/pg_backup_tar.c
@@ -1026,6 +1026,7 @@ _EndBlobs(ArchiveHandle *AH, TocEntry *te)
static int
tarPrintf(ArchiveHandle *AH, TAR_MEMBER *th, const char *fmt,...)
{
+ int save_errno = errno;
char *p;
size_t len = 128; /* initial assumption about buffer size */
size_t cnt;
@@ -1038,6 +1039,7 @@ tarPrintf(ArchiveHandle *AH, TAR_MEMBER *th, const char *fmt,...)
p = (char *) pg_malloc(len);
/* Try to format the data. */
+ errno = save_errno;
va_start(args, fmt);
cnt = pvsnprintf(p, len, fmt, args);
va_end(args);