wifi_essid: add boundary check && prevent the use of direct string literal as a format string in snprintf()
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1 changed files with 2 additions and 1 deletions
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@ -717,7 +717,8 @@ wifi_essid(const char *iface)
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memset(&wreq, 0, sizeof(struct iwreq));
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wreq.u.essid.length = IW_ESSID_MAX_SIZE+1;
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sprintf(wreq.ifr_name, iface);
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snprintf(wreq.ifr_name, ifrn_name, "%s", iface);
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if (sockfd == -1) {
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warn("Failed to get ESSID for interface %s", iface);
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return smprintf("%s", UNKNOWN_STR);
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