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authorDan McGee <dan@archlinux.org>2012-04-09 00:42:04 -0500
committerDan McGee <dan@archlinux.org>2012-04-09 00:46:54 -0500
commitded66fbb62cdad37d577dc048e37f7cea7f7a4da (patch)
treeb80edeb140fccccbbd9abc6bd8d58c5bec331d57 /lib/libalpm/dload.c
parentca090e10d264e4999e321b0a0b43736a34aa11d9 (diff)
Fix issues with unintialized variable value usage
Detected by clang scan-build static code analyzer. * Don't attempt to free an uninitialized gpgme key variable * Initialize answer variable before asking frontend a question * Pass by reference instead of value if uninitialized fields are possible in download signal handler code * Ensure we never call strlen() on NULL payload->remote_name value Signed-off-by: Dan McGee <dan@archlinux.org>
Diffstat (limited to 'lib/libalpm/dload.c')
-rw-r--r--lib/libalpm/dload.c11
1 files changed, 6 insertions, 5 deletions
diff --git a/lib/libalpm/dload.c b/lib/libalpm/dload.c
index 9d982183..c1f54f02 100644
--- a/lib/libalpm/dload.c
+++ b/lib/libalpm/dload.c
@@ -337,9 +337,9 @@ static void mask_signal(int signal, void (*handler)(int),
sigaction(signal, &newaction, NULL);
}
-static void unmask_signal(int signal, struct sigaction sa)
+static void unmask_signal(int signal, struct sigaction *sa)
{
- sigaction(signal, &sa, NULL);
+ sigaction(signal, sa, NULL);
}
static FILE *create_tempfile(struct dload_payload *payload, const char *localpath)
@@ -409,7 +409,8 @@ static int curl_download_internal(struct dload_payload *payload,
RET_ERR(handle, ALPM_ERR_SERVER_BAD_URL, -1);
}
- if(strlen(payload->remote_name) > 0 && strcmp(payload->remote_name, ".sig") != 0) {
+ if(payload->remote_name && strlen(payload->remote_name) > 0 &&
+ strcmp(payload->remote_name, ".sig") != 0) {
payload->destfile_name = get_fullpath(localpath, payload->remote_name, "");
payload->tempfile_name = get_fullpath(localpath, payload->remote_name, ".part");
if(!payload->destfile_name || !payload->tempfile_name) {
@@ -582,8 +583,8 @@ cleanup:
}
/* restore the old signal handlers */
- unmask_signal(SIGINT, orig_sig_int);
- unmask_signal(SIGPIPE, orig_sig_pipe);
+ unmask_signal(SIGINT, &orig_sig_int);
+ unmask_signal(SIGPIPE, &orig_sig_pipe);
/* if we were interrupted, trip the old handler */
if(dload_interrupted) {
raise(SIGINT);