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Don't accept an empty string for $ALSA_CONFIG_PATH

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The variable $ALSA_CONFIG_PATH specifies the config path, but the current
code accepts the empty string and results in a mysterious error because
no config file is found.

This patch fixes the check of the variable and takes the default value
if the string is empty.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2008-12-10 18:20:50 +01:00
parent 48e4d089dc
commit 0400fa6f8d
1 changed files with 1 additions and 1 deletions
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2
src/conf.c
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@ -2962,7 +2962,7 @@ int snd_config_update_r(snd_config_t **_top, snd_config_update_t **_update, cons
configs = cfgs; configs = cfgs;
if (!configs) { if (!configs) {
configs = getenv(ALSA_CONFIG_PATH_VAR); configs = getenv(ALSA_CONFIG_PATH_VAR);
if (!configs) if (!configs || !*configs)
configs = ALSA_CONFIG_PATH_DEFAULT; configs = ALSA_CONFIG_PATH_DEFAULT;
} }
for (k = 0, c = configs; (l = strcspn(c, ": ")) > 0; ) { for (k = 0, c = configs; (l = strcspn(c, ": ")) > 0; ) {