database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-06-27 23:21:58 +03:00
Code Activity

Fix error message on short read of pg_control

Browse Source 
Instead of saying "error: success", indicate that we got a working read
but it was too short.
This commit is contained in:
Magnus Hagander
2018-05-18 17:53:20 +02:00
parent bc711befd6
commit 048caa5560
1 changed files with 12 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
src/backend/access/transam/xlog.c
View File

@ -3582,6 +3582,7 @@ ReadControlFile(void)
{ {
pg_crc32 crc; pg_crc32 crc;
int fd; int fd;
int r;
/* /*
* Read data... * Read data...
@ -3595,10 +3596,17 @@ ReadControlFile(void)
errmsg("could not open control file \"%s\": %m", errmsg("could not open control file \"%s\": %m",
XLOG_CONTROL_FILE))); XLOG_CONTROL_FILE)));
if (read(fd, ControlFile, sizeof(ControlFileData)) != sizeof(ControlFileData)) r = read(fd, ControlFile, sizeof(ControlFileData));
ereport(PANIC, if (r != sizeof(ControlFileData))
(errcode_for_file_access(), {
errmsg("could not read from control file: %m"))); if (r < 0)
ereport(PANIC,
(errcode_for_file_access(),
errmsg("could not read from control file: %m")));
else
ereport(PANIC,
(errmsg("could not read from control file: read %d bytes, expected %d", r, (int) sizeof(ControlFileData))));
}
close(fd); close(fd);