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Diffstat (limited to 'lib')
-rw-r--r--lib/mprintf.c21
1 files changed, 15 insertions, 6 deletions
diff --git a/lib/mprintf.c b/lib/mprintf.c
index 37332b2ce..1a908b3f2 100644
--- a/lib/mprintf.c
+++ b/lib/mprintf.c
@@ -1028,7 +1028,6 @@ static int alloc_addbyter(int output, FILE *data)
infop->len++;
return output; /* fputc() returns like this on success */
-
}
char *curl_maprintf(const char *format, ...)
@@ -1044,12 +1043,17 @@ char *curl_maprintf(const char *format, ...)
va_start(ap_save, format);
retcode = dprintf_formatf(&info, alloc_addbyter, format, ap_save);
va_end(ap_save);
- if(info.len) {
+ if(-1 == retcode) {
+ if(info.alloc)
+ free(info.buffer);
+ return NULL;
+ }
+ if(info.alloc) {
info.buffer[info.len] = 0; /* we terminate this with a zero byte */
return info.buffer;
}
else
- return NULL;
+ return strdup("");
}
char *curl_mvaprintf(const char *format, va_list ap_save)
@@ -1062,13 +1066,18 @@ char *curl_mvaprintf(const char *format, va_list ap_save)
info.alloc = 0;
retcode = dprintf_formatf(&info, alloc_addbyter, format, ap_save);
- info.buffer[info.len] = 0; /* we terminate this with a zero byte */
- if(info.len) {
+ if(-1 == retcode) {
+ if(info.alloc)
+ free(info.buffer);
+ return NULL;
+ }
+
+ if(info.alloc) {
info.buffer[info.len] = 0; /* we terminate this with a zero byte */
return info.buffer;
}
else
- return NULL;
+ return strdup("");
}
static int storebuffer(int output, FILE *data)