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Always check the values returned by fdopen(3)

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Marco d'Itri 2024-06-18 01:00:57 +02:00
parent dc588f10ee
commit 2c20d77516
1 changed files with 8 additions and 0 deletions
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8
whois.c
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@ -801,6 +801,8 @@ char *do_query(const int sock, const char *query)
strcat(temp, "\r\n"); strcat(temp, "\r\n");
fi = fdopen(sock, "r"); fi = fdopen(sock, "r");
if (!fi)
err_sys("fdopen");
if (write(sock, temp, strlen(temp)) < 0) if (write(sock, temp, strlen(temp)) < 0)
err_sys("write"); err_sys("write");
free(temp); free(temp);
@ -875,6 +877,8 @@ char *query_crsnic(const int sock, const char *query)
strcat(temp, "\r\n"); strcat(temp, "\r\n");
fi = fdopen(sock, "r"); fi = fdopen(sock, "r");
if (!fi)
err_sys("fdopen");
if (write(sock, temp, strlen(temp)) < 0) if (write(sock, temp, strlen(temp)) < 0)
err_sys("write"); err_sys("write");
free(temp); free(temp);
@ -928,6 +932,8 @@ char *query_afilias(const int sock, const char *query)
strcat(temp, "\r\n"); strcat(temp, "\r\n");
fi = fdopen(sock, "r"); fi = fdopen(sock, "r");
if (!fi)
err_sys("fdopen");
if (write(sock, temp, strlen(temp)) < 0) if (write(sock, temp, strlen(temp)) < 0)
err_sys("write"); err_sys("write");
free(temp); free(temp);
@ -980,6 +986,8 @@ char *query_iana(const int sock, const char *query)
strcat(temp, "\r\n"); strcat(temp, "\r\n");
fi = fdopen(sock, "r"); fi = fdopen(sock, "r");
if (!fi)
err_sys("fdopen");
if (write(sock, temp, strlen(temp)) < 0) if (write(sock, temp, strlen(temp)) < 0)
err_sys("write"); err_sys("write");
free(temp); free(temp);