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oss4: Refactor code to make it look more modern

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A side effect is that it passes -Wformat-nonliteral and doesn't read
invalid memory in some cases, like when the mixer track contains
a % sign or there is a number but not a known mixer name.
This commit is contained in:
Benjamin Otte 2010-03-22 16:13:12 +01:00 committed by Tim-Philipp Müller
parent 85124337dc
commit ab5f546143
1 changed files with 20 additions and 15 deletions
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35
sys/oss4/oss4-mixer.c
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@ -854,14 +854,11 @@ static gchar *
gst_oss4_mixer_control_get_translated_name (GstOss4MixerControl * mc) gst_oss4_mixer_control_get_translated_name (GstOss4MixerControl * mc)
{ {
gchar name[128] = { 0, }; gchar name[128] = { 0, };
gchar scratch[128] = { 0, };
gchar fmtbuf[128] = { 0, };
gchar vmix_str[32] = { '\0', }; gchar vmix_str[32] = { '\0', };
gchar *ptr; gchar *ptr;
int dummy, i; int dummy, i;
int num = -1; int num = -1;
gboolean function_suffix = FALSE;
g_strlcpy (fmtbuf, "%s", sizeof (fmtbuf));
/* main virtual mixer controls (we hide the stream volumes) */ /* main virtual mixer controls (we hide the stream volumes) */
if (sscanf (mc->mixext.extname, "vmix%d-%32c", &dummy, vmix_str) == 2) { if (sscanf (mc->mixext.extname, "vmix%d-%32c", &dummy, vmix_str) == 2) {
@ -880,13 +877,12 @@ gst_oss4_mixer_control_get_translated_name (GstOss4MixerControl * mc)
(g_str_has_prefix (name, "jack."))) { (g_str_has_prefix (name, "jack."))) {
ptr = strchr (mc->mixext.extname, '.'); ptr = strchr (mc->mixext.extname, '.');
ptr++; ptr++;
g_strlcpy (scratch, ptr, sizeof (scratch)); g_strlcpy (name, ptr, sizeof (name));
g_strlcpy (name, scratch, sizeof (name));
} }
/* special handling for jack retasking suffixes */ /* special handling for jack retasking suffixes */
if (g_str_has_suffix (name, ".function") || g_str_has_suffix (name, ".mode")) { if (g_str_has_suffix (name, ".function") || g_str_has_suffix (name, ".mode")) {
g_strlcpy (fmtbuf, _("%s Function"), sizeof (fmtbuf)); function_suffix = TRUE;
ptr = strrchr (name, '.'); ptr = strrchr (name, '.');
*ptr = 0; *ptr = 0;
} }
@ -900,10 +896,6 @@ gst_oss4_mixer_control_get_translated_name (GstOss4MixerControl * mc)
if ((i > 0) && (name[i] != '\0')) { if ((i > 0) && (name[i] != '\0')) {
num = atoi (name + i); num = atoi (name + i);
name[i] = '\0'; name[i] = '\0';
/* format appends a number to the base, but preserves any surrounding
format */
g_snprintf (scratch, sizeof (scratch), fmtbuf, _("%s %d"));
g_strlcpy (fmtbuf, scratch, sizeof (fmtbuf));
} }
/* look for a match, progressively skipping '.' delimited prefixes as we go */ /* look for a match, progressively skipping '.' delimited prefixes as we go */
@ -913,16 +905,29 @@ gst_oss4_mixer_control_get_translated_name (GstOss4MixerControl * mc)
ptr++; ptr++;
for (i = 0; i < G_N_ELEMENTS (labels); ++i) { for (i = 0; i < G_N_ELEMENTS (labels); ++i) {
if (g_strcasecmp (ptr, labels[i].oss_name) == 0) { if (g_strcasecmp (ptr, labels[i].oss_name) == 0) {
g_snprintf (name, sizeof (name), fmtbuf, _(labels[i].label), num); g_strlcpy (name, _(labels[i].label), sizeof (name));
return g_strdup (name); goto append_suffixes;
} }
} }
} while ((ptr = strchr (ptr, '.')) != NULL); } while ((ptr = strchr (ptr, '.')) != NULL);
/* failing that, just replace periods with spaces */ /* failing that, just replace periods with spaces */
g_strdelimit (name, ".", ' '); g_strdelimit (name, ".", ' ');
g_snprintf (scratch, sizeof (scratch), fmtbuf, name);
return g_strdup (scratch); append_suffixes:
if (num > -1) {
if (function_suffix) {
return g_strdup_printf (_("%s %d Function"), name, num);
} else {
return g_strdup_printf (_("%s %d"), name, num);
}
} else {
if (function_suffix) {
return g_strdup_printf (_("%s Function"), name);
} else {
return g_strdup (name);
}
}
} }
static const gchar * static const gchar *