X-Git-Url: https://git.sesse.net/?p=cubemap;a=blobdiff_plain;f=util.cpp;h=1b76962a2b1e5061209da30acfaff172a8d4e981;hp=b8862ed48c79719b632dd1575a6cd1cc6e057b39;hb=562cf44b96b5c0260d1a1ab18b2dd2408b6d1fc8;hpb=534764f026b82b144e974882c8e53c4cd8d21b68 diff --git a/util.cpp b/util.cpp index b8862ed..1b76962 100644 --- a/util.cpp +++ b/util.cpp @@ -2,6 +2,7 @@ #include #include #include +#include #include #include "log.h" @@ -12,7 +13,9 @@ using namespace std; int make_tempfile(const std::string &contents) { char filename[] = "/tmp/cubemap.XXXXXX"; + mode_t old_umask = umask(0600); int fd = mkstemp(filename); + umask(old_umask); if (fd == -1) { log_perror("mkstemp"); return -1; @@ -29,7 +32,7 @@ int make_tempfile(const std::string &contents) ssize_t ret = write(fd, ptr, to_write); if (ret == -1) { log_perror("write"); - close(fd); + safe_close(fd); return -1; } @@ -43,17 +46,7 @@ int make_tempfile(const std::string &contents) bool read_tempfile_and_close(int fd, std::string *contents) { bool ok = read_tempfile(fd, contents); - - int ret; - do { - ret = close(fd); // Implicitly deletes the file. - } while (ret == -1 && errno == EINTR); - - if (ret == -1) { - log_perror("close"); - // Can still continue. - } - + safe_close(fd); // Implicitly deletes the file. return ok; } @@ -90,3 +83,17 @@ bool read_tempfile(int fd, std::string *contents) return true; } + +int safe_close(int fd) +{ + int ret; + do { + ret = close(fd); + } while (ret == -1 && errno == EINTR); + + if (ret == -1) { + log_perror("close()"); + } + + return ret; +}