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From a4e32c3d29e93866c180b5837f8aee3989dac3e9 Mon Sep 17 00:00:00 2001
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From: Kamil Dudka <kdudka@redhat.com>
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Date: Tue, 6 Nov 2018 17:24:05 +0100
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Subject: [PATCH] libtar: fix programming mistakes detected by static analysis
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---
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lib/append.c | 7 +++++++
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lib/wrapper.c | 11 +++++++----
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libtar/libtar.c | 1 +
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3 files changed, 15 insertions(+), 4 deletions(-)
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diff --git a/lib/append.c b/lib/append.c
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index ff58532..6386a50 100644
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--- a/lib/append.c
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+++ b/lib/append.c
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@@ -110,9 +110,16 @@ tar_append_file(TAR *t, const char *realname, const char *savename)
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td->td_dev = s.st_dev;
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td->td_h = libtar_hash_new(256, (libtar_hashfunc_t)ino_hash);
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if (td->td_h == NULL)
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+ {
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+ free(td);
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return -1;
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+ }
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if (libtar_hash_add(t->h, td) == -1)
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+ {
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+ libtar_hash_free(td->td_h, free);
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+ free(td);
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return -1;
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+ }
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}
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libtar_hashptr_reset(&hp;;
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if (libtar_hash_getkey(td->td_h, &hp, &(s.st_ino),
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diff --git a/lib/wrapper.c b/lib/wrapper.c
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index 44cc435..2d3f5b9 100644
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--- a/lib/wrapper.c
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+++ b/lib/wrapper.c
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@@ -97,6 +97,7 @@ tar_append_tree(TAR *t, char *realdir, char *savedir)
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struct dirent *dent;
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DIR *dp;
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struct stat s;
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+ int ret = -1;
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#ifdef DEBUG
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printf("==> tar_append_tree(0x%lx, \"%s\", \"%s\")\n",
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@@ -130,24 +131,26 @@ tar_append_tree(TAR *t, char *realdir, char *savedir)
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dent->d_name);
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if (lstat(realpath, &s) != 0)
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- return -1;
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+ goto fail;
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if (S_ISDIR(s.st_mode))
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{
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if (tar_append_tree(t, realpath,
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(savedir ? savepath : NULL)) != 0)
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- return -1;
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+ goto fail;
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continue;
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}
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if (tar_append_file(t, realpath,
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(savedir ? savepath : NULL)) != 0)
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- return -1;
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+ goto fail;
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}
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+ ret = 0;
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+fail:
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closedir(dp);
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- return 0;
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+ return ret;
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}
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diff --git a/libtar/libtar.c b/libtar/libtar.c
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index 23f8741..ac339e7 100644
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--- a/libtar/libtar.c
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+++ b/libtar/libtar.c
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@@ -92,6 +92,7 @@ gzopen_frontend(char *pathname, int oflags, int mode)
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if (!gzf)
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{
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errno = ENOMEM;
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+ close(fd);
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return -1;
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}
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--
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2.17.2
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