diff options
Diffstat (limited to 'sysdeps/posix')
-rw-r--r-- | sysdeps/posix/getcwd.c | 4 | ||||
-rw-r--r-- | sysdeps/posix/mk-stdiolim.c | 8 | ||||
-rw-r--r-- | sysdeps/posix/tempname.c | 58 | ||||
-rw-r--r-- | sysdeps/posix/ttyname.c | 2 | ||||
-rw-r--r-- | sysdeps/posix/ttyname_r.c | 2 |
5 files changed, 47 insertions, 27 deletions
diff --git a/sysdeps/posix/getcwd.c b/sysdeps/posix/getcwd.c index a9536b95cf..825599f370 100644 --- a/sysdeps/posix/getcwd.c +++ b/sysdeps/posix/getcwd.c @@ -298,7 +298,7 @@ __getcwd (buf, size) (d->d_name[1] == '\0' || (d->d_name[1] == '.' && d->d_name[2] == '\0'))) continue; - if (mount_point || d->d_ino == thisino) + if (mount_point || (ino_t) d->d_ino == thisino) { char name[dotlist + dotsize - dotp + 1 + _D_ALLOC_NAMLEN (d)]; memcpy (name, dotp, dotlist + dotsize - dotp); @@ -326,7 +326,7 @@ __getcwd (buf, size) { size_t namlen = _D_EXACT_NAMLEN (d); - if (pathp - path < namlen) + if ((size_t) (pathp - path) < namlen) { if (buf != NULL) { diff --git a/sysdeps/posix/mk-stdiolim.c b/sysdeps/posix/mk-stdiolim.c index da78a98394..5df460e89a 100644 --- a/sysdeps/posix/mk-stdiolim.c +++ b/sysdeps/posix/mk-stdiolim.c @@ -1,4 +1,4 @@ -/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc. +/* Copyright (C) 1991, 1992, 1993, 1996 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -23,7 +23,7 @@ main() { /* These values correspond to the code in sysdeps/posix/tempname.c. Change the values here if you change that code. */ - printf("#define L_tmpnam %u\n", sizeof("/usr/tmp/") + 8); + printf("#define L_tmpnam %u\n", sizeof("/usr/tmp/") + 9); printf("#define TMP_MAX %u\n", 62 * 62 * 62); puts ("#ifdef __USE_POSIX"); @@ -36,7 +36,7 @@ main() is the case in the Hurd). ANSI still requires that FOPEN_MAX and FILENAME_MAX be defined, however. */ - printf("#define FOPEN_MAX %u\n", + printf("#define FOPEN_MAX %u\n", #ifdef OPEN_MAX OPEN_MAX @@ -51,7 +51,7 @@ main() ); - printf("#define FILENAME_MAX %u\n", + printf("#define FILENAME_MAX %u\n", #ifdef PATH_MAX PATH_MAX #else diff --git a/sysdeps/posix/tempname.c b/sysdeps/posix/tempname.c index 6fd698e2b8..d58024fe7e 100644 --- a/sysdeps/posix/tempname.c +++ b/sysdeps/posix/tempname.c @@ -81,21 +81,24 @@ static const char letters[] = existing file will be returned. When the cycle reaches its end (12345ZZZ), NULL is returned. */ char * -__stdio_gen_tempname (const char *dir, const char *pfx, int dir_search, - size_t *lenptr, FILE **streamptr) +__stdio_gen_tempname (char *buf, size_t bufsize, const char *dir, + const char *pfx, int dir_search, size_t *lenptr, + FILE **streamptr) { int saverrno = errno; static const char tmpdir[] = P_tmpdir; static size_t indices[2]; size_t *idx; - static char buf[FILENAME_MAX]; +#if 0 static pid_t oldpid = (pid_t) 0; +#endif pid_t pid = __getpid(); register size_t len, plen, dlen; + int wrapped; if (dir_search) { - register const char *d = getenv ("TMPDIR"); + register const char *d = __secure_getenv ("TMPDIR"); if (d != NULL && !diraccess (d)) d = NULL; if (d == NULL && dir != NULL && diraccess (dir)) @@ -133,34 +136,51 @@ __stdio_gen_tempname (const char *dir, const char *pfx, int dir_search, dir = tmpdir; idx = &indices[(plen == 0 && dir == tmpdir) ? 1 : 0]; +#if 0 + /* XXX Is this ever useful??? At least when using a thread package + which uses different PIDs for the threads it is not helpful. */ if (pid != oldpid) { oldpid = pid; indices[0] = indices[1] = 0; } +#endif + wrapped = 0; /* We have not yet wrapped around the index counter. */ len = dlen + 1 + plen + 5 + 3; - while (*idx < ((sizeof (letters) - 1) * (sizeof (letters) - 1) * - (sizeof (letters) - 1))) + while (1) { - const size_t i = (*idx)++; + const size_t i; + + if (*idx >= ((sizeof (letters) - 1) * (sizeof (letters) - 1) * + (sizeof (letters) - 1))) + { + if (wrapped) + /* We really wrapped around this call. Can't believe it + but nevertheless stop the endless loop. */ + break; + + indices[0] = indices[1] = 0; + wrapped = 1; + } + + i = (*idx)++; /* Construct a file name and see if it already exists. We use a single counter in *IDX to cycle each of three character positions through each of 62 possible letters. */ - if (sizeof (buf) < len || - sprintf (buf, "%.*s/%.*s%.5d%c%c%c", - (int) dlen, dir, (int) plen, - pfx, pid % 100000, - letters[i % (sizeof (letters) - 1)], - letters[(i / (sizeof (letters) - 1)) - % (sizeof (letters) - 1)], - letters[(i / ((sizeof (letters) - 1) * - (sizeof (letters) - 1))) - % (sizeof (letters) - 1)] - ) != (int) len) + if (__snprintf (buf, bufsize, "%.*s/%.*s%.5d%c%c%c", + (int) dlen, dir, (int) plen, + pfx, pid % 100000, + letters[i % (sizeof (letters) - 1)], + letters[(i / (sizeof (letters) - 1)) + % (sizeof (letters) - 1)], + letters[(i / ((sizeof (letters) - 1) * + (sizeof (letters) - 1))) + % (sizeof (letters) - 1)] + ) != (int) len) return NULL; if (streamptr != NULL) @@ -176,7 +196,7 @@ __stdio_gen_tempname (const char *dir, const char *pfx, int dir_search, struct _IO_FILE_plus *fp; fp = (struct _IO_FILE_plus *) - malloc(sizeof (struct _IO_FILE_plus)); + malloc (sizeof (struct _IO_FILE_plus)); if (fp == NULL) { /* We lost trying to create a stream (out of memory?). diff --git a/sysdeps/posix/ttyname.c b/sysdeps/posix/ttyname.c index be82827d00..9668117b47 100644 --- a/sysdeps/posix/ttyname.c +++ b/sysdeps/posix/ttyname.c @@ -57,7 +57,7 @@ ttyname (fd) return NULL; while ((d = readdir (dirstream)) != NULL) - if (d->d_fileno == myino) + if ((ino_t) d->d_fileno == myino) { size_t dlen = _D_ALLOC_NAMLEN (d); if (sizeof (dev) + dlen > namelen) diff --git a/sysdeps/posix/ttyname_r.c b/sysdeps/posix/ttyname_r.c index 1fb4b047d4..d7f6026d8a 100644 --- a/sysdeps/posix/ttyname_r.c +++ b/sysdeps/posix/ttyname_r.c @@ -72,7 +72,7 @@ __ttyname_r (fd, buf, buflen) buflen -= sizeof (dev); while ((d = readdir (dirstream)) != NULL) - if (d->d_fileno == myino) + if ((ino_t) d->d_fileno == myino) { char *cp; |