cleanup: use internal memory allocation wrapper functions everywhere

The "x"-prefixed versions of strdup, malloc, etc. will check whether the
allocation was successful and terminate the process otherwise.

A few uses of malloc were left alone since they already implemented a
graceful path of failure or were in a quasi external library like xdiff.

Additionally, the call to malloc in compat/win32/syslog.c was not modified
since the syslog() implemented there is a die handler and a call to the
x-wrappers within a die handler could result in recursion should memory
allocation fail.  This will have to be addressed separately.

Signed-off-by: Brandon Casey <drafnel@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/attr.c b/attr.c
index fe38fcc36bcdbdfba5c06128aa41247125169e37..0793859b71aa9a425005665a118bec1ab54fec37 100644 (file)
--- a/attr.c
+++ b/attr.c
@@ -533,7 +533,7 @@ static void bootstrap_attr_stack(void)
 
                if (!is_bare_repository() || direction == GIT_ATTR_INDEX) {
                        elem = read_attr(GITATTRIBUTES_FILE, 1);
-                       elem->origin = strdup("");
+                       elem->origin = xstrdup("");
                        elem->prev = attr_stack;
                        attr_stack = elem;
                        debug_push(elem);

diff --git a/builtin/mv.c b/builtin/mv.c
index 40f33ca4d0e6d0bb1733e0544029c6f588d09b59..e9d191f0562df86d9a19311704cb5fc77e9b8caf 100644 (file)
--- a/builtin/mv.c
+++ b/builtin/mv.c
@@ -29,7 +29,7 @@ static const char **copy_pathspec(const char *prefix, const char **pathspec,
                        to_copy--;
                if (to_copy != length || base_name) {
                        char *it = xmemdupz(result[i], to_copy);
-                       result[i] = base_name ? strdup(basename(it)) : it;
+                       result[i] = base_name ? xstrdup(basename(it)) : it;
                }
        }
        return get_pathspec(prefix, result);

diff --git a/compat/mingw.c b/compat/mingw.c
index 6ef0cc4f99becd772a6fed1cfe2484a67b3a9000..8947418ce78faa3619779c12319c0dd99b1557d3 100644 (file)
--- a/compat/mingw.c
+++ b/compat/mingw.c
@@ -1183,7 +1183,7 @@ static int WSAAPI getaddrinfo_stub(const char *node, const char *service,
        }
        ai->ai_addrlen = sizeof(struct sockaddr_in);
        if (hints && (hints->ai_flags & AI_CANONNAME))
-               ai->ai_canonname = h ? strdup(h->h_name) : NULL;
+               ai->ai_canonname = h ? xstrdup(h->h_name) : NULL;
        else
                ai->ai_canonname = NULL;
 

diff --git a/compat/qsort.c b/compat/qsort.c
index d93dce2cf8fa33bd1fbefe131d2e41a6b954da61..9574d537bd38d3aa72ee040b106456088ee16a07 100644 (file)
--- a/compat/qsort.c
+++ b/compat/qsort.c
@@ -55,7 +55,7 @@ void git_qsort(void *b, size_t n, size_t s,
                msort_with_tmp(b, n, s, cmp, buf);
        } else {
                /* It's somewhat large, so malloc it.  */
-               char *tmp = malloc(size);
+               char *tmp = xmalloc(size);
                msort_with_tmp(b, n, s, cmp, tmp);
                free(tmp);
        }

diff --git a/remote.c b/remote.c
index b8ecfa5d9558e3824872ad6778fc344681cc8d5c..7840d2f9b97b8c100012386aad265d422ec802d0 100644 (file)
--- a/remote.c
+++ b/remote.c
@@ -840,7 +840,7 @@ char *apply_refspecs(struct refspec *refspecs, int nr_refspec,
                                                    refspec->dst, &ret))
                                return ret;
                } else if (!strcmp(refspec->src, name))
-                       return strdup(refspec->dst);
+                       return xstrdup(refspec->dst);
        }
        return NULL;
 }

diff --git a/show-index.c b/show-index.c
index 4c0ac138aff7b5add73e17fc9c3c4e409fd918e2..63f9da53237d4233bede66a28e4bcf27d5b44af1 100644 (file)
--- a/show-index.c
+++ b/show-index.c
@@ -48,7 +48,7 @@ int main(int argc, char **argv)
                        unsigned char sha1[20];
                        uint32_t crc;
                        uint32_t off;
-               } *entries = malloc(nr * sizeof(entries[0]));
+               } *entries = xmalloc(nr * sizeof(entries[0]));
                for (i = 0; i < nr; i++)
                        if (fread(entries[i].sha1, 20, 1, stdin) != 1)
                                die("unable to read sha1 %u/%u", i, nr);

diff --git a/transport-helper.c b/transport-helper.c
index 4eab844d4abfa29ce53b6245a5821ee7be03641b..07131261fefeab2066636a7f83bce05796329a54 100644 (file)
--- a/transport-helper.c
+++ b/transport-helper.c
@@ -183,7 +183,7 @@ static struct child_process *get_helper(struct transport *transport)
                        ALLOC_GROW(refspecs,
                                   refspec_nr + 1,
                                   refspec_alloc);
-                       refspecs[refspec_nr++] = strdup(capname + strlen("refspec "));
+                       refspecs[refspec_nr++] = xstrdup(capname + strlen("refspec "));
                } else if (!strcmp(capname, "connect")) {
                        data->connect = 1;
                } else if (!prefixcmp(capname, "export-marks ")) {
@@ -445,7 +445,7 @@ static int fetch_with_import(struct transport *transport,
                if (data->refspecs)
                        private = apply_refspecs(data->refspecs, data->refspec_nr, posn->name);
                else
-                       private = strdup(posn->name);
+                       private = xstrdup(posn->name);
                read_ref(private, posn->old_sha1);
                free(private);
        }