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shared: gracefully accept %NULL strings for NM_STR_HAS_PREFIX() and NM_STR_HAS_SUFFIX()

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In case it wasn't obvious to a caller, allow %NULL as valid string
argument. Just be a bit more forgiving and fault-tolerant.
This commit is contained in:
Thomas Haller 2019-07-04 17:06:10 +02:00
parent c045267837
commit fe52a9467b
1 changed files with 9 additions and 4 deletions
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13
shared/nm-glib-aux/nm-macros-internal.h
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@ -906,14 +906,19 @@ nm_streq0 (const char *s1, const char *s2)
}
#define NM_STR_HAS_PREFIX(str, prefix) \
(strncmp ((str), ""prefix"", NM_STRLEN (prefix)) == 0)
({ \
const char *const _str = (str); \
\
_str && (strncmp ((str), ""prefix"", NM_STRLEN (prefix)) == 0); \
})
#define NM_STR_HAS_SUFFIX(str, suffix) \
({ \
const char *_str = (str); \
gsize _l = strlen (_str); \
const char *_str; \
gsize _l; \
\
( (_l >= NM_STRLEN (suffix)) \
( (_str = (str)) \
&& ((_l = strlen (_str)) >= NM_STRLEN (suffix)) \
&& (memcmp (&_str[_l - NM_STRLEN (suffix)], \
""suffix"", \
NM_STRLEN (suffix)) == 0)); \