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- Fix possible memory leak due to repetetive strdup(3) without matching

Browse Source 
free(3).
- print_recsrc() should honor shortflag and give appropriate output for
  later consumption by /etc/rc.d/mixer. This will ensure that recording
  device selections survived across reboot. Output everything to stdout
  instead if stderr.

MFC after:	3 days
This commit is contained in:
Ariff Abdullah 2006-01-01 20:19:49 +00:00
parent cc6882e1a4
commit 90f0732d68
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=153953
1 changed files with 21 additions and 14 deletions
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35
usr.sbin/mixer/mixer.c
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@ -26,7 +26,7 @@ const char *names[SOUND_MIXER_NRDEVICES] = SOUND_DEVICE_NAMES;
void usage(int devmask, int recmask); void usage(int devmask, int recmask);
int res_name(const char *name, int mask); int res_name(const char *name, int mask);
void print_recsrc(int recsrc); void print_recsrc(int recsrc, int shortflag);
void void
usage(int devmask, int recmask) usage(int devmask, int recmask)
@ -69,19 +69,27 @@ res_name(const char *name, int mask)
} }
void void
print_recsrc(int recsrc) print_recsrc(int recsrc, int shortflag)
{ {
int i, n = 0; int i, n = 0;
fprintf(stderr, "Recording source: ");
if (!shortflag)
printf("Recording source: ");
for (i = 0; i < SOUND_MIXER_NRDEVICES; i++) for (i = 0; i < SOUND_MIXER_NRDEVICES; i++)
if ((1 << i) & recsrc) { if ((1 << i) & recsrc) {
if (n) if (shortflag) {
fprintf(stderr, ", "); if (n)
fprintf(stderr, "%s", names[i]); printf(" +rec ");
else
printf("=rec ");
} else if (n)
printf(", ");
printf("%s", names[i]);
n = 1; n = 1;
} }
fprintf(stderr, "\n"); if (!shortflag)
printf("\n");
} }
int int
@ -97,17 +105,17 @@ main(int argc, char *argv[])
char *name; char *name;
name = strdup("/dev/mixer"); name = "/dev/mixer";
if (!strcmp(argv[0], "mixer2")) if (!strcmp(argv[0], "mixer2"))
name = strdup("/dev/mixer1"); name = "/dev/mixer1";
else if (!strcmp(argv[0], "mixer3")) else if (!strcmp(argv[0], "mixer3"))
name = strdup("/dev/mixer2"); name = "/dev/mixer2";
while ((ch = getopt(argc, argv, "f:sS")) != -1) while ((ch = getopt(argc, argv, "f:sS")) != -1)
switch (ch) { switch (ch) {
case 'f': case 'f':
name = strdup(optarg); name = optarg;
break; break;
case 's': case 's':
shortflag = 1; shortflag = 1;
@ -123,7 +131,6 @@ main(int argc, char *argv[])
if ((baz = open(name, O_RDWR)) < 0) if ((baz = open(name, O_RDWR)) < 0)
err(1, "%s", name); err(1, "%s", name);
free(name);
if (ioctl(baz, SOUND_MIXER_READ_DEVMASK, &devmask) == -1) if (ioctl(baz, SOUND_MIXER_READ_DEVMASK, &devmask) == -1)
err(1, "SOUND_MIXER_READ_DEVMASK"); err(1, "SOUND_MIXER_READ_DEVMASK");
if (ioctl(baz, SOUND_MIXER_READ_RECMASK, &recmask) == -1) if (ioctl(baz, SOUND_MIXER_READ_RECMASK, &recmask) == -1)
@ -152,7 +159,7 @@ main(int argc, char *argv[])
} }
if (ioctl(baz, SOUND_MIXER_READ_RECSRC, &recsrc) == -1) if (ioctl(baz, SOUND_MIXER_READ_RECSRC, &recsrc) == -1)
err(1, "SOUND_MIXER_READ_RECSRC"); err(1, "SOUND_MIXER_READ_RECSRC");
print_recsrc(recsrc); print_recsrc(recsrc, shortflag || Shortflag);
return(0); return(0);
} }
@ -288,7 +295,7 @@ main(int argc, char *argv[])
if (drecsrc) { if (drecsrc) {
if (ioctl(baz, SOUND_MIXER_READ_RECSRC, &recsrc) == -1) if (ioctl(baz, SOUND_MIXER_READ_RECSRC, &recsrc) == -1)
err(1, "SOUND_MIXER_READ_RECSRC"); err(1, "SOUND_MIXER_READ_RECSRC");
print_recsrc(recsrc); print_recsrc(recsrc, shortflag || Shortflag);
} }
close(baz); close(baz);