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openSUSE:Leap:15.2:Rings:0-Bootstrap
bash
bash-4.3-pathtemp.patch
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File bash-4.3-pathtemp.patch of Package bash
--- lib/sh/tmpfile.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 48 insertions(+), 1 deletion(-) --- lib/sh/tmpfile.c +++ lib/sh/tmpfile.c 2018-01-24 12:38:42.410481352 +0000 @@ -36,6 +36,14 @@ #include <stdio.h> #include <errno.h> +#if defined(__linux__) +# include <sys/statfs.h> +# include <unistd.h> +# ifndef TMPFS_MAGIC +# define TMPFS_MAGIC 0x01021994 +# endif +#endif + #include <shell.h> #ifndef errno @@ -65,6 +73,8 @@ static unsigned long filenum = 1L; static char * get_sys_tmpdir () { + static int doshm; + if (sys_tmpdir) return sys_tmpdir; @@ -91,6 +101,31 @@ get_sys_tmpdir () return sys_tmpdir; } +#if defined(__linux__) +static int +emergency_sys_tmpdir () +{ + static char *shm = "/dev/shm"; + static size_t pgsz; + struct statfs fs; + static int doshm; + + if (getuid() != 0) + return 0; + + if (doshm) + return 0; + + doshm++; + + if (statfs(shm, &fs) < 0 || fs.f_type != TMPFS_MAGIC || eaccess(shm, W_OK|X_OK)) + return 0; + + sys_tmpdir = shm; + return 1; +} +#endif + static char * get_tmpdir (flags) int flags; @@ -186,7 +221,8 @@ sh_mktmpfd (nameroot, flags, namep) { char *filename, *tdir, *lroot; int fd, tdlen; - + +enospace: filename = (char *)xmalloc (PATH_MAX + 1); tdir = get_tmpdir (flags); tdlen = strlen (tdir); @@ -201,6 +237,10 @@ sh_mktmpfd (nameroot, flags, namep) free (filename); filename = NULL; } + + if (fd < 0 && errno == ENOSPC && emergency_sys_tmpdir()) + goto enospace; + if (namep) *namep = filename; return fd; @@ -219,6 +259,13 @@ sh_mktmpfd (nameroot, flags, namep) } while (fd < 0 && errno == EEXIST); + if (fd < 0 && errno == ENOSPC && emergency_sys_tmpdir()) + { + free (filename); + filename = NULL; + goto enospace; + } + if (namep) *namep = filename; else
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