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Check some error returns from *asprintf()

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This avoids these compiler warnings on Ubuntu 18.04
gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04)

expand_path.c: In function ‘expand_token’:
expand_path.c:493:17: warning: ignoring return value of ‘asprintf’, declared with attribute warn_unused_result [-Wunused-result]
                 asprintf(&arg, "%.*s", (int)(token_end - colon - 1), colon + 1);
                 ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
log.c: In function ‘fmtkv’:
log.c:646:5: warning: ignoring return value of ‘vasprintf’, declared with attribute warn_unused_result [-Wunused-result]
     vasprintf(&buf1, fmt, ap);
     ^~~~~~~~~~~~~~~~~~~~~~~~~

mech/context.c: In function ‘gss_mg_set_error_string’:
mech/context.c:212:5: warning: ignoring return value of ‘vasprintf’, declared with attribute warn_unused_result [-Wunused-result]
     (void) vasprintf(&str, fmt, ap);
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
mech/context.c: In function ‘_gss_mg_log_name’:
mech/context.c:319:6: warning: ignoring return value of ‘vasprintf’, declared with attribute warn_unused_result [-Wunused-result]
      (void) vasprintf(&str, fmt, ap);
      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
mech/context.c: In function ‘_gss_mg_log_cred’:
mech/context.c:346:5: warning: ignoring return value of ‘vasprintf’, declared with attribute warn_unused_result [-Wunused-result]
     (void) vasprintf(&str, fmt, ap);
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

kerberos5.c: In function ‘_kdc_set_e_text’:
kerberos5.c:338:5: warning: ignoring return value of ‘vasprintf’, declared with attribute warn_unused_result [-Wunused-result]
     vasprintf(&e_text, fmt, ap);
     ^~~~~~~~~~~~~~~~~~~~~~~~~~~

Signed-off-by: Andrew Bartlett <abartlet@samba.org>
This commit is contained in:
Andrew Bartlett
2020-05-28 11:09:09 +12:00
committed by Jeffrey Altman
parent f91f786dd6
commit 1a65611f61
4 changed files with 22 additions and 16 deletions
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6
lib/base/expand_path.c
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@@ -490,8 +490,10 @@ expand_token(heim_context context,
errcode = 0;
if (*colon == ':') {
asprintf(&arg, "%.*s", (int)(token_end - colon - 1), colon + 1);
if (!arg)
int asprintf_ret = asprintf(&arg, "%.*s",
(int)(token_end - colon - 1),
colon + 1);
if (asprintf_ret < 0 || !arg)
errcode = ENOMEM;
}
if (!errcode)