X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=secnet.git;a=blobdiff_plain;f=util.c;h=f5f3d75aa81c891ef04368d739d2d488120375a1;hp=44a45e50d4c22d0c19350e9277e91d93d4ed65c3;hb=e42d5acf494ed76046f0c63ad4a13ae2a0c473c8;hpb=bb9d056157e37451ec14800d5914733a625f1901

diff --git a/util.c b/util.c
index 44a45e5..f5f3d75 100644
--- a/util.c
+++ b/util.c
@@ -139,7 +139,7 @@ static uint8_t hexval(uint8_t c)
 }
 
 /* Convert a MP_INT into a buffer; return length; truncate if necessary */
-uint32_t write_mpbin(MP_INT *a, uint8_t *buffer, uint32_t buflen)
+int32_t write_mpbin(MP_INT *a, uint8_t *buffer, int32_t buflen)
 {
     char *hb;
     int i,j,l;
@@ -166,6 +166,7 @@ static const char *phases[NR_PHASES]={
     "PHASE_GETOPTS",
     "PHASE_READCONFIG",
     "PHASE_SETUP",
+    "PHASE_DAEMONIZE",
     "PHASE_GETRESOURCES",
     "PHASE_DROPPRIV",
     "PHASE_RUN",
@@ -224,7 +225,7 @@ struct buffer {
 };
 
 void buffer_assert_free(struct buffer_if *buffer, cstring_t file,
-			uint32_t line)
+			int line)
 {
     if (!buffer->free) {
 	fatal("BUF_ASSERT_FREE, %s line %d, owned by %s",
@@ -233,7 +234,7 @@ void buffer_assert_free(struct buffer_if *buffer, cstring_t file,
 }
 
 void buffer_assert_used(struct buffer_if *buffer, cstring_t file,
-			uint32_t line)
+			int line)
 {
     if (buffer->free) {
 	fatal("BUF_ASSERT_USED, %s line %d, last owned by %s",
@@ -241,13 +242,13 @@ void buffer_assert_used(struct buffer_if *buffer, cstring_t file,
     }
 }
 
-void buffer_init(struct buffer_if *buffer, uint32_t max_start_pad)
+void buffer_init(struct buffer_if *buffer, int32_t max_start_pad)
 {
     buffer->start=buffer->base+max_start_pad;
     buffer->size=0;
 }
 
-void *buf_append(struct buffer_if *buf, uint32_t amount) {
+void *buf_append(struct buffer_if *buf, int32_t amount) {
     void *p;
     assert(buf->size <= buf->len - amount);
     p=buf->start + buf->size;
@@ -255,19 +256,20 @@ void *buf_append(struct buffer_if *buf, uint32_t amount) {
     return p;
 }
 
-void *buf_prepend(struct buffer_if *buf, uint32_t amount) {
+void *buf_prepend(struct buffer_if *buf, int32_t amount) {
     assert(amount <= buf->start - buf->base);
     buf->size+=amount;
     return buf->start-=amount;
 }
 
-void *buf_unappend(struct buffer_if *buf, uint32_t amount) {
+void *buf_unappend(struct buffer_if *buf, int32_t amount) {
     if (buf->size < amount) return 0;
     return buf->start+(buf->size-=amount);
 }
 
-void *buf_unprepend(struct buffer_if *buf, uint32_t amount) {
+void *buf_unprepend(struct buffer_if *buf, int32_t amount) {
     void *p;
+    if (buf->size < amount) return 0;
     p=buf->start;
     buf->start+=amount;
     buf->size-=amount;
@@ -278,7 +280,7 @@ void *buf_unprepend(struct buffer_if *buf, uint32_t amount) {
    network byte order. */
 void buf_append_string(struct buffer_if *buf, cstring_t s)
 {
-    uint16_t len;
+    size_t len;
 
     len=strlen(s);
     /* fixme: if string is longer than 65535, result is a corrupted packet */
@@ -286,7 +288,7 @@ void buf_append_string(struct buffer_if *buf, cstring_t s)
     memcpy(buf_append(buf,len),s,len);
 }
 
-void buffer_new(struct buffer_if *buf, uint32_t len)
+void buffer_new(struct buffer_if *buf, int32_t len)
 {
     buf->free=True;
     buf->owner=NULL;
@@ -299,6 +301,18 @@ void buffer_new(struct buffer_if *buf, uint32_t len)
     buf->base=safe_malloc(len,"buffer_new");
 }
 
+void buffer_copy(struct buffer_if *dst, const struct buffer_if *src)
+{
+    if (dst->len < src->len) {
+	dst->base=realloc(dst->base,src->len);
+	if (!dst->base) fatal_perror("buffer_copy");
+	dst->len = src->len;
+    }
+    dst->start = dst->base + (src->start - src->base);
+    dst->size = src->size;
+    memcpy(dst->start, src->start, dst->size);
+}
+
 static list_t *buffer_apply(closure_t *self, struct cloc loc, dict_t *context,
 			    list_t *args)
 {