aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorJoseph Myers <joseph@codesourcery.com>2015-06-17 20:21:19 +0000
committerJoseph Myers <joseph@codesourcery.com>2015-06-17 20:21:19 +0000
commitabccad04b4172d552dbdae948c0e567ba266ad76 (patch)
tree2de82b0b360a2a1003e1fe0e92c00fef92e8d79f
parent0595c98494c25f8eaa1a3298e8fa032ad5e4405e (diff)
downloadglibc-abccad04b4172d552dbdae948c0e567ba266ad76.zip
glibc-abccad04b4172d552dbdae948c0e567ba266ad76.tar.gz
glibc-abccad04b4172d552dbdae948c0e567ba266ad76.tar.bz2
Fix ttyslot namespace (bug 18547).
ttyslot (XPG4) calls the non-XPG4 functions endttyent, getttyent and setttyent, which in turn bring in references to fgets_unlocked and getttynam. This patch fixes this by making these functions into weak aliases and calling the __* names as needed. Tested for x86_64 and x86 (testsuite, and that disassembly of installed stripped shared libraries is unchanged by the patch). [BZ #18547] * misc/getttyent.c (getttynam): Rename to __getttynam and define as weak alias of __getttynam. Use prototype function definition. Call __setttyent, __getttyent and __endttyent instead of setttyent, getttyent and endttyent. (getttyent): Rename to __getttyent and define as weak alias of __getttyent. Call __setttyent instead of setttyent. Call __fgets_unlocked instead of fgets_unlocked. (setttyent): Rename to __setttyent and define as weak alias of __setttyent. (endttyent): Rename to __endttyent and define as weak alias of __endttyent. * include/ttyent.h (__getttyent): Declare. Use libc_hidden_proto. (__setttyent): Likewise. (__endttyent): Likewise. (getttyent): Don't use libc_hidden_proto. (setttyent): Likewise. (endttyent): Likewise. * misc/ttyslot.c (ttyslot): Call __setttyent, __getttyent and __endttyent instead of setttyent, getttyent and endttyent. * conform/Makefile (test-xfail-XPG4/unistd.h/linknamespace): Remove variable.
-rw-r--r--ChangeLog23
-rw-r--r--NEWS2
-rw-r--r--conform/Makefile1
-rw-r--r--include/ttyent.h9
-rw-r--r--misc/getttyent.c29
-rw-r--r--misc/ttyslot.c8
6 files changed, 50 insertions, 22 deletions
diff --git a/ChangeLog b/ChangeLog
index 2ea4f1a..4ce8eb9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,28 @@
2015-06-17 Joseph Myers <joseph@codesourcery.com>
+ [BZ #18547]
+ * misc/getttyent.c (getttynam): Rename to __getttynam and define
+ as weak alias of __getttynam. Use prototype function definition.
+ Call __setttyent, __getttyent and __endttyent instead of
+ setttyent, getttyent and endttyent.
+ (getttyent): Rename to __getttyent and define as weak alias of
+ __getttyent. Call __setttyent instead of setttyent. Call
+ __fgets_unlocked instead of fgets_unlocked.
+ (setttyent): Rename to __setttyent and define as weak alias of
+ __setttyent.
+ (endttyent): Rename to __endttyent and define as weak alias of
+ __endttyent.
+ * include/ttyent.h (__getttyent): Declare. Use libc_hidden_proto.
+ (__setttyent): Likewise.
+ (__endttyent): Likewise.
+ (getttyent): Don't use libc_hidden_proto.
+ (setttyent): Likewise.
+ (endttyent): Likewise.
+ * misc/ttyslot.c (ttyslot): Call __setttyent, __getttyent and
+ __endttyent instead of setttyent, getttyent and endttyent.
+ * conform/Makefile (test-xfail-XPG4/unistd.h/linknamespace):
+ Remove variable.
+
[BZ #18546]
* socket/recv.c (__recv): Use libc_hidden_def.
* socket/socket.c (__socket): Likewise.
diff --git a/NEWS b/NEWS
index 1892800..3adec9b 100644
--- a/NEWS
+++ b/NEWS
@@ -22,7 +22,7 @@ Version 2.22
18324, 18333, 18346, 18397, 18409, 18410, 18412, 18418, 18422, 18434,
18444, 18468, 18469, 18470, 18479, 18483, 18495, 18496, 18497, 18498,
18507, 18512, 18519, 18520, 18522, 18527, 18528, 18529, 18530, 18532,
- 18533, 18534, 18536, 18539, 18540, 18542, 18544, 18545, 18546.
+ 18533, 18534, 18536, 18539, 18540, 18542, 18544, 18545, 18546, 18547.
* Cache information can be queried via sysconf() function on s390 e.g. with
_SC_LEVEL1_ICACHE_SIZE as argument.
diff --git a/conform/Makefile b/conform/Makefile
index 52df51e..ad9cc69 100644
--- a/conform/Makefile
+++ b/conform/Makefile
@@ -345,4 +345,3 @@ test-xfail-XOPEN2K8/ndbm.h/linknamespace = yes
# Unsorted expected failures.
test-xfail-XPG3/unistd.h/linknamespace = yes
-test-xfail-XPG4/unistd.h/linknamespace = yes
diff --git a/include/ttyent.h b/include/ttyent.h
index e510df8..81e5211 100644
--- a/include/ttyent.h
+++ b/include/ttyent.h
@@ -1,8 +1,11 @@
#ifndef _TTYENT_H
# include <misc/ttyent.h>
-libc_hidden_proto (getttyent)
-libc_hidden_proto (setttyent)
-libc_hidden_proto (endttyent)
+extern __typeof (getttyent) __getttyent __THROW;
+libc_hidden_proto (__getttyent)
+extern __typeof (setttyent) __setttyent __THROW;
+libc_hidden_proto (__setttyent)
+extern __typeof (endttyent) __endttyent __THROW;
+libc_hidden_proto (__endttyent)
#endif
diff --git a/misc/getttyent.c b/misc/getttyent.c
index 864f65f..fcdbc22 100644
--- a/misc/getttyent.c
+++ b/misc/getttyent.c
@@ -44,24 +44,24 @@ static char zapchar;
static FILE *tf;
struct ttyent *
-getttynam(tty)
- const char *tty;
+__getttynam (const char *tty)
{
struct ttyent *t;
- setttyent();
- while ((t = getttyent()))
+ __setttyent();
+ while ((t = __getttyent()))
if (!strcmp(tty, t->ty_name))
break;
- endttyent();
+ __endttyent();
return (t);
}
+weak_alias (__getttynam, getttynam)
static char *skip (char *) __THROW internal_function;
static char *value (char *) __THROW internal_function;
struct ttyent *
-getttyent (void)
+__getttyent (void)
{
static struct ttyent tty;
int c;
@@ -69,11 +69,11 @@ getttyent (void)
#define MAXLINELENGTH 100
static char line[MAXLINELENGTH];
- if (!tf && !setttyent())
+ if (!tf && !__setttyent())
return (NULL);
flockfile (tf);
for (;;) {
- if (!fgets_unlocked(p = line, sizeof(line), tf)) {
+ if (!__fgets_unlocked(p = line, sizeof(line), tf)) {
funlockfile (tf);
return (NULL);
}
@@ -131,7 +131,8 @@ getttyent (void)
*p = '\0';
return (&tty);
}
-libc_hidden_def (getttyent)
+libc_hidden_def (__getttyent)
+weak_alias (__getttyent, getttyent)
#define QUOTED 1
@@ -184,7 +185,7 @@ value(p)
}
int
-setttyent (void)
+__setttyent (void)
{
if (tf) {
@@ -197,10 +198,11 @@ setttyent (void)
}
return (0);
}
-libc_hidden_def (setttyent)
+libc_hidden_def (__setttyent)
+weak_alias (__setttyent, setttyent)
int
-endttyent (void)
+__endttyent (void)
{
int rval;
@@ -211,4 +213,5 @@ endttyent (void)
}
return (1);
}
-libc_hidden_def (endttyent)
+libc_hidden_def (__endttyent)
+weak_alias (__endttyent, endttyent)
diff --git a/misc/ttyslot.c b/misc/ttyslot.c
index 9c69589..0ed14d7 100644
--- a/misc/ttyslot.c
+++ b/misc/ttyslot.c
@@ -53,20 +53,20 @@ ttyslot (void)
name = __alloca (buflen);
- setttyent();
+ __setttyent();
for (cnt = 0; cnt < 3; ++cnt)
if (__ttyname_r (cnt, name, buflen) == 0) {
if ((p = rindex(name, '/')))
++p;
else
p = name;
- for (slot = 1; (ttyp = getttyent()); ++slot)
+ for (slot = 1; (ttyp = __getttyent()); ++slot)
if (!strcmp(ttyp->ty_name, p)) {
- endttyent();
+ __endttyent();
return(slot);
}
break;
}
- endttyent();
+ __endttyent();
return(0);
}