git-mailinfo: use strbuf's instead of fixed buffers

diff --git a/builtin-fetch--tool.c b/builtin-fetch--tool.c
index 6a78517958567e9dee4bfb00236caf5c3d1c3d67..7460ab7fce2a4e6a7e014f448819140e2204ccb7 100644 (file)
--- a/builtin-fetch--tool.c
+++ b/builtin-fetch--tool.c
@@ -435,9 +435,7 @@ static int pick_rref(int sha1_only, const char *rref, const char *ls_remote_resu
                                cp++;
                        if (!*cp)
                                break;
-                       np = strchr(cp, '\n');
-                       if (!np)
-                               np = cp + strlen(cp);
+                       np = strchrnul(cp, '\n');
                        if (pass) {
                                lrr_list[i].line = cp;
                                lrr_list[i].name = cp + 41;
@@ -461,9 +459,7 @@ static int pick_rref(int sha1_only, const char *rref, const char *ls_remote_resu
                        rref++;
                if (!*rref)
                        break;
-               next = strchr(rref, '\n');
-               if (!next)
-                       next = rref + strlen(rref);
+               next = strchrnul(rref, '\n');
                rreflen = next - rref;
 
                for (i = 0; i < lrr_count; i++) {
@@ -515,10 +511,14 @@ int cmd_fetch__tool(int argc, const char **argv, const char *prefix)
        if (!strcmp("append-fetch-head", argv[1])) {
                int result;
                FILE *fp;
+               char *filename;
 
                if (argc != 8)
                        return error("append-fetch-head takes 6 args");
-               fp = fopen(git_path("FETCH_HEAD"), "a");
+               filename = git_path("FETCH_HEAD");
+               fp = fopen(filename, "a");
+               if (!fp)
+                       return error("cannot open %s: %s\n", filename, strerror(errno));
                result = append_fetch_head(fp, argv[2], argv[3],
                                           argv[4], argv[5],
                                           argv[6], !!argv[7][0],
@@ -529,10 +529,14 @@ int cmd_fetch__tool(int argc, const char **argv, const char *prefix)
        if (!strcmp("native-store", argv[1])) {
                int result;
                FILE *fp;
+               char *filename;
 
                if (argc != 5)
                        return error("fetch-native-store takes 3 args");
-               fp = fopen(git_path("FETCH_HEAD"), "a");
+               filename = git_path("FETCH_HEAD");
+               fp = fopen(filename, "a");
+               if (!fp)
+                       return error("cannot open %s: %s\n", filename, strerror(errno));
                result = fetch_native_store(fp, argv[2], argv[3], argv[4],
                                            verbose, force);
                fclose(fp);