sbase

suckless unix tools
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commit 453ce96d44b8bf9de7cccb68dba9d5233d630ea2
parent 73115682ede243bdbe5f69779e9fec0dc1698a80
Author: Michael Forney <mforney@mforney.org>
Date:   Sat Nov  1 20:36:37 +0000

tar: Don't crash when get{pw,gr}uid fails

Diffstat:
tar.c | 4++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tar.c b/tar.c @@ -177,8 +177,8 @@ archive(const char* path) putoctal(h->mtime, (unsigned)st.st_mtime, sizeof h->mtime); memcpy(h->magic, "ustar", sizeof h->magic); memcpy(h->version, "00", sizeof h->version); - snprintf(h->uname, sizeof h->uname, "%s", pw->pw_name); - snprintf(h->gname, sizeof h->gname, "%s", gr->gr_name); + snprintf(h->uname, sizeof h->uname, "%s", pw ? pw->pw_name : ""); + snprintf(h->gname, sizeof h->gname, "%s", gr ? gr->gr_name : ""); mode = st.st_mode; if(S_ISREG(mode)) {