From: Alexander Volkov <a.volkov@rusbitech.ru>
To: patch@alsa-project.org
Cc: alsa-devel@alsa-project.org
Subject: [PATCH - alsa-utils 1/1] arecord: Remove only regular files
Date: Mon, 21 Sep 2015 16:05:57 +0300 [thread overview]
Message-ID: <1442840757-5403-1-git-send-email-a.volkov@rusbitech.ru> (raw)
arecord removes a file before writing into it. It's not
appropriate in some cases. For example, if you a pass
a symlink to a file, then the symlink will be removed
while the user expects to record into the symlink's target.
Another case is recording into the device file. Some
modems provide a tty device file as a voice device.
And it's not possible to write into it under root with
arecord, because it removes the device file.
So check the type of a file before writing into it and
remove only regular files.
Signed-off-by: Alexander Volkov <a.volkov@rusbitech.ru>
diff --git a/aplay/aplay.c b/aplay/aplay.c
index 459f7dd..1b2cdfc 100644
--- a/aplay/aplay.c
+++ b/aplay/aplay.c
@@ -2929,6 +2929,7 @@ static void capture(char *orig_name)
char *name = orig_name; /* current filename */
char namebuf[PATH_MAX+1];
off64_t count, rest; /* number of bytes to capture */
+ struct stat statbuf;
/* get number of bytes to capture */
count = calc_count();
@@ -2973,7 +2974,10 @@ static void capture(char *orig_name)
}
/* open a new file */
- remove(name);
+ if (!lstat(name, &statbuf)) {
+ if (S_ISREG(statbuf.st_mode))
+ remove(name);
+ }
fd = safe_open(name);
if (fd < 0) {
perror(name);
--
2.4.0
next reply other threads:[~2015-09-21 13:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-21 13:05 Alexander Volkov [this message]
2015-09-22 13:24 ` [PATCH - alsa-utils 1/1] arecord: Remove only regular files Arun Raghavan
2015-09-22 14:07 ` Александр Волков
2015-09-23 13:28 ` Takashi Iwai
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