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process-util: trivial cleanup for read_errno()

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This commit is contained in:
Mike Yuan
2025-12-20 13:45:22 +01:00
parent e48e098db1
commit 3532691d72
1 changed files with 10 additions and 11 deletions
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src/basic/process-util.c
+10 -11
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@@ -2341,16 +2341,15 @@ int read_errno(int errno_fd) {
log_debug_errno(n, "Failed to read errno: %m");
return -EIO;
}
if (n == sizeof(r)) {
if (r == 0)
return 0;
if (r < 0) /* child process reported an error, return it */
return log_debug_errno(r, "Child process failed with errno: %m");
return log_debug_errno(SYNTHETIC_ERRNO(EIO), "Received an errno, but it's a positive value.");
}
if (n != 0)
return log_debug_errno(SYNTHETIC_ERRNO(EIO), "Received unexpected amount of bytes while reading errno.");
if (n == 0) /* the process exited without reporting an error, assuming success */
return 0;
if (n != sizeof(r))
return log_debug_errno(SYNTHETIC_ERRNO(EIO), "Received unexpected amount of bytes (%zi) while reading errno.", n);
/* the process exited without reporting an error, assuming success */
return 0;
if (r == 0)
return 0;
if (r < 0) /* child process reported an error, return it */
return log_debug_errno(r, "Child process failed with errno: %m");
return log_debug_errno(SYNTHETIC_ERRNO(EIO), "Received positive errno from child, refusing: %d", r);
}