diff options
Diffstat (limited to 'sysdeps/generic/glob.c')
| -rw-r--r-- | sysdeps/generic/glob.c | 82 |
1 files changed, 51 insertions, 31 deletions
diff --git a/sysdeps/generic/glob.c b/sysdeps/generic/glob.c index f54c3b3d21..2d7ee67ca3 100644 --- a/sysdeps/generic/glob.c +++ b/sysdeps/generic/glob.c @@ -155,6 +155,12 @@ extern void abort (), exit (); #endif /* Standard headers. */ +#ifdef HAVE_GETLOGIN_R +extern int getlogin_r __P ((char *, size_t)); +#else +extern char *getlogin __P ((void)); +#endif + #ifndef ANSI_STRING # ifndef bzero @@ -180,7 +186,6 @@ extern void bcopy (); # define mempcpy(Dest, Src, Len) __mempcpy (Dest, Src, Len) #endif - #ifndef __GNU_LIBRARY__ # ifdef __GNUC__ __inline @@ -245,6 +250,8 @@ extern char *alloca (); # define closedir(dir) __closedir (dir) # define opendir(name) __opendir (name) # define readdir(str) __readdir (str) +# define getpwnam_r(name, bufp, buf, len, res) \ + __getpwnam_r (name, bufp, buf, len, res) #endif #if !(defined STDC_HEADERS || defined __GNU_LIBRARY__) @@ -349,7 +356,7 @@ glob (pattern, flags, errfunc, pglob) glob_t *pglob; { const char *filename; - char *dirname; + const char *dirname; size_t dirlen; int status; int oldcount; @@ -507,9 +514,9 @@ glob (pattern, flags, errfunc, pglob) { filename = pattern; #ifdef _AMIGA - dirname = (char *) ""; + dirname = ""; #else - dirname = (char *) "."; + dirname = "."; #endif dirlen = 0; } @@ -517,20 +524,22 @@ glob (pattern, flags, errfunc, pglob) else if (filename == pattern) { /* "/pattern". */ - dirname = (char *) "/"; + dirname = "/"; dirlen = 1; ++filename; } else { + char *newp; dirlen = filename - pattern; - dirname = (char *) __alloca (dirlen + 1); + newp = (char *) __alloca (dirlen + 1); #ifdef HAVE_MEMPCPY - *((char *) mempcpy (dirname, pattern, dirlen)) = '\0'; + *((char *) mempcpy (newp, pattern, dirlen)) = '\0'; #else - memcpy (dirname, pattern, dirlen); - dirname[dirlen] = '\0'; + memcpy (newp, pattern, dirlen); + newp[dirlen] = '\0'; #endif + dirname = newp; ++filename; if (filename[0] == '\0' && dirlen > 1) @@ -558,7 +567,7 @@ glob (pattern, flags, errfunc, pglob) if (dirname[1] == '\0' || dirname[1] == '/') { /* Look up home directory. */ - char *home_dir = getenv ("HOME"); + const char *home_dir = getenv ("HOME"); # ifdef _AMIGA if (home_dir == NULL || home_dir[0] == '\0') home_dir = "SYS:"; @@ -570,37 +579,38 @@ glob (pattern, flags, errfunc, pglob) if (home_dir == NULL || home_dir[0] == '\0') { int success; + char *name; # if defined HAVE_GETLOGIN_R || defined _LIBC - extern int getlogin_r __P ((char *, size_t)); size_t buflen = sysconf (_SC_LOGIN_NAME_MAX) + 1; - char *name; if (buflen == 0) /* `sysconf' does not support _SC_LOGIN_NAME_MAX. Try a moderate value. */ - buflen = 16; + buflen = 20; name = (char *) __alloca (buflen); success = getlogin_r (name, buflen) >= 0; # else - extern char *getlogin __P ((void)); - char *name; - success = (name = getlogin ()) != NULL; # endif if (success) { + struct passwd *p; # if defined HAVE_GETPWNAM_R || defined _LIBC size_t pwbuflen = sysconf (_SC_GETPW_R_SIZE_MAX); char *pwtmpbuf; - struct passwd pwbuf, *p; + struct passwd pwbuf; + if (pwbuflen == -1) + /* `sysconf' does not support _SC_GETPW_R_SIZE_MAX. + Try a moderate value. */ + pwbuflen = 1024; pwtmpbuf = (char *) __alloca (pwbuflen); - success = (__getpwnam_r (name, &pwbuf, pwtmpbuf, - pwbuflen, &p) >= 0); + success = (getpwnam_r (name, &pwbuf, pwtmpbuf, pwbuflen, &p) + >= 0); # else - struct passwd *p = getpwnam (name); + p = getpwnam (name); success = p != NULL; # endif if (success) @@ -611,7 +621,7 @@ glob (pattern, flags, errfunc, pglob) if (flags & GLOB_TILDE_CHECK) return GLOB_NOMATCH; else - home_dir = (char *) "~"; /* No luck. */ + home_dir = "~"; /* No luck. */ # endif /* WINDOWS32 */ # endif /* Now construct the full directory. */ @@ -636,35 +646,45 @@ glob (pattern, flags, errfunc, pglob) else { char *end_name = strchr (dirname, '/'); - char *user_name; - char *home_dir; + const char *user_name; + const char *home_dir; if (end_name == NULL) user_name = dirname + 1; else { - user_name = (char *) __alloca (end_name - dirname); + char *newp; + newp = (char *) __alloca (end_name - dirname); # ifdef HAVE_MEMPCPY - *((char *) mempcpy (user_name, dirname + 1, end_name - dirname)) + *((char *) mempcpy (newp, dirname + 1, end_name - dirname)) = '\0'; # else - memcpy (user_name, dirname + 1, end_name - dirname); - user_name[end_name - dirname - 1] = '\0'; + memcpy (newp, dirname + 1, end_name - dirname); + newp[end_name - dirname - 1] = '\0'; # endif + user_name = newp; } /* Look up specific user's home directory. */ { + struct passwd *p; # if defined HAVE_GETPWNAM_R || defined _LIBC size_t buflen = sysconf (_SC_GETPW_R_SIZE_MAX); - char *pwtmpbuf = (char *) __alloca (buflen); - struct passwd pwbuf, *p; - if (__getpwnam_r (user_name, &pwbuf, pwtmpbuf, buflen, &p) >= 0) + char *pwtmpbuf; + struct passwd pwbuf; + + if (buflen == -1) + /* `sysconf' does not support _SC_GETPW_R_SIZE_MAX. Try a + moderate value. */ + buflen = 1024; + pwtmpbuf = (char *) __alloca (buflen); + + if (getpwnam_r (user_name, &pwbuf, pwtmpbuf, buflen, &p) >= 0) home_dir = p->pw_dir; else home_dir = NULL; # else - struct passwd *p = getpwnam (user_name); + p = getpwnam (user_name); if (p != NULL) home_dir = p->pw_dir; else |