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| author | Rob Herring <robh@kernel.org> | 2018-11-24 14:47:54 -0600 |
|---|---|---|
| committer | David Gibson <david@gibson.dropbear.id.au> | 2018-11-25 18:21:48 +1100 |
| commit | a1eff70c02cfd3a6263adfd6aab25290211f31aa (patch) | |
| tree | 25cd74143b5984e49f5f22208e39fd6d8bb97ff4 /util.h | |
| parent | 82a52ce4573b7cd0039786f65b280fb99431fe5d (diff) | |
| download | dtc-a1eff70c02cfd3a6263adfd6aab25290211f31aa.zip dtc-a1eff70c02cfd3a6263adfd6aab25290211f31aa.tar.gz dtc-a1eff70c02cfd3a6263adfd6aab25290211f31aa.tar.bz2 | |
util: Add xa{v}sprintf_append functions
Add variadic and va_list functions, xa{v}sprintf, which appends a
formatted string to an existing string and re-allocate the string buffer
if necessary. xasprintf becomes just a special case of xasprintf_append
with a NULL starting string.
Rather than looping to get a big enough buffer, simply the implementation
by assuming we have a C99 compliant vsnprintf implementation to return the
necessary size. A side effect is glibc 2.0 support is dropped which seems
unnecessary.
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'util.h')
| -rw-r--r-- | util.h | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -72,6 +72,8 @@ static inline void *xrealloc(void *p, size_t len) extern char *xstrdup(const char *s); extern int PRINTF(2, 3) xasprintf(char **strp, const char *fmt, ...); +extern int PRINTF(2, 3) xasprintf_append(char **strp, const char *fmt, ...); +extern int xavsprintf_append(char **strp, const char *fmt, va_list ap); extern char *join_path(const char *path, const char *name); /** |