From: Mike Pape <dotzenlabs@xxxxxxxxx>
This patch adds strbuf_vaddf, which takes a va_list as input
instead of the variadic input that strbuf_addf takes. This
is useful for fowarding varargs to strbuf_addf.
Signed-off-by: Mike Pape <dotzenlabs@xxxxxxxxx>
Signed-off-by: Erik Faye-Lund <kusmabite@xxxxxxxxx>
---
strbuf.c | 15 +++++++++------
strbuf.h | 1 +
2 files changed, 10 insertions(+), 6 deletions(-)
diff --git a/strbuf.c b/strbuf.c
index a6153dc..e1833fb 100644
--- a/strbuf.c
+++ b/strbuf.c
@@ -190,23 +190,18 @@ void strbuf_adddup(struct strbuf *sb, size_t pos, size_t len)
strbuf_setlen(sb, sb->len + len);
}
-void strbuf_addf(struct strbuf *sb, const char *fmt, ...)
+void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap)
{
int len;
- va_list ap;
if (!strbuf_avail(sb))
strbuf_grow(sb, 64);
- va_start(ap, fmt);
len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
- va_end(ap);
if (len < 0)
die("your vsnprintf is broken");
if (len > strbuf_avail(sb)) {
strbuf_grow(sb, len);
- va_start(ap, fmt);
len = vsnprintf(sb->buf + sb->len, sb->alloc - sb->len, fmt, ap);
- va_end(ap);
if (len > strbuf_avail(sb)) {
die("this should not happen, your snprintf is broken");
}
@@ -214,6 +209,14 @@ void strbuf_addf(struct strbuf *sb, const char *fmt, ...)
strbuf_setlen(sb, sb->len + len);
}
+void strbuf_addf(struct strbuf *sb, const char *fmt, ...)
+{
+ va_list va;
+ va_start(va, fmt);
+ strbuf_vaddf(sb, fmt, va);
+ va_end(va);
+}
+
void strbuf_expand(struct strbuf *sb, const char *format, expand_fn_t fn,
void *context)
{
diff --git a/strbuf.h b/strbuf.h
index d05e056..8686bcb 100644
--- a/strbuf.h
+++ b/strbuf.h
@@ -119,6 +119,7 @@ extern size_t strbuf_expand_dict_cb(struct strbuf *sb, const char *placeholder,
__attribute__((format(printf,2,3)))
extern void strbuf_addf(struct strbuf *sb, const char *fmt, ...);
+extern void strbuf_vaddf(struct strbuf *sb, const char *fmt, va_list ap);
extern size_t strbuf_fread(struct strbuf *, size_t, FILE *);
/* XXX: if read fails, any partial read is undone */
--
1.6.5.rc2.7.g4f8d3
--
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