Various tweaks to support building with excessive GCC warning flags

This fixes a bunch of small issues in order to enable a clean
successful build with a crazy number of GCC warning flags. A lot of
these changes are covered by -Wshadow, -Wformat-security, and
-Wstrict-overflow=5.

Signed-off-by: Dan McGee <dan@archlinux.org>

1 files changed, 5 insertions, 2 deletions

diff --git a/lib/libalpm/trans.c b/lib/libalpm/trans.c
index 4309c07e..08f70dd7 100644
--- a/lib/libalpm/trans.c
+++ b/lib/libalpm/trans.c
@@ -276,8 +276,8 @@ static int grep(const char *fn, const char *needle)
 int _alpm_runscriptlet(alpm_handle_t *handle, const char *filepath,
 		const char *script, const char *ver, const char *oldver, int is_archive)
 {
-	char cmdline[PATH_MAX];
-	char *argv[] = { SCRIPTLET_SHELL, "-c", cmdline, NULL };
+	char arg0[64], arg1[3], cmdline[PATH_MAX];
+	char *argv[] = { arg0, arg1, cmdline, NULL };
 	char *tmpdir, *scriptfn = NULL, *scriptpath;
 	int retval = 0;
 	size_t len;
@@ -293,6 +293,9 @@ int _alpm_runscriptlet(alpm_handle_t *handle, const char *filepath,
 		return 0;
 	}
 
+	strcpy(arg0, SCRIPTLET_SHELL);
+	strcpy(arg1, "-c");
+
 	/* create a directory in $root/tmp/ for copying/extracting the scriptlet */
 	len = strlen(handle->root) + strlen("tmp/alpm_XXXXXX") + 1;
 	MALLOC(tmpdir, len, RET_ERR(handle, ALPM_ERR_MEMORY, -1));