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author | dkf <donal.k.fellows@manchester.ac.uk> | 2007-04-16 13:36:33 (GMT) |
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committer | dkf <donal.k.fellows@manchester.ac.uk> | 2007-04-16 13:36:33 (GMT) |
commit | 3b2f0df2b4603b0565ad30e1e15ae9f0bfe3cb5f (patch) | |
tree | 88437ef1c667959b00a3b86ee638cc3a94300aab /compat/opendir.c | |
parent | b443cf5d2f6f6c75dc77a88987ed558a2fca9ba5 (diff) | |
download | tcl-3b2f0df2b4603b0565ad30e1e15ae9f0bfe3cb5f.zip tcl-3b2f0df2b4603b0565ad30e1e15ae9f0bfe3cb5f.tar.gz tcl-3b2f0df2b4603b0565ad30e1e15ae9f0bfe3cb5f.tar.bz2 |
Complete the purge of K&R function definitions from manually-written code.
Diffstat (limited to 'compat/opendir.c')
-rw-r--r-- | compat/opendir.c | 119 |
1 files changed, 62 insertions, 57 deletions
diff --git a/compat/opendir.c b/compat/opendir.c index 0b97156..6c8f263 100644 --- a/compat/opendir.c +++ b/compat/opendir.c @@ -1,13 +1,11 @@ /* * opendir.c -- * - * This file provides dirent-style directory-reading procedures - * for V7 Unix systems that don't have such procedures. The - * origin of this code is unclear, but it seems to have come - * originally from Larry Wall. + * This file provides dirent-style directory-reading procedures for V7 + * Unix systems that don't have such procedures. The origin of this code + * is unclear, but it seems to have come originally from Larry Wall. * - * - * RCS: @(#) $Id: opendir.c,v 1.3 2004/04/06 22:25:48 dgp Exp $ + * RCS: @(#) $Id: opendir.c,v 1.4 2007/04/16 13:36:34 dkf Exp $ */ #include "tclInt.h" @@ -19,24 +17,28 @@ /* * open a directory. */ + DIR * -opendir(name) -char *name; +opendir( + char *name) { - register DIR *dirp; - register int fd; - char *myname; + register DIR *dirp; + register int fd; + char *myname; - myname = ((*name == '\0') ? "." : name); - if ((fd = open(myname, 0, 0)) == -1) - return NULL; - if ((dirp = (DIR *)ckalloc(sizeof(DIR))) == NULL) { - close (fd); - return NULL; - } - dirp->dd_fd = fd; - dirp->dd_loc = 0; - return dirp; + myname = ((*name == '\0') ? "." : name); + if ((fd = open(myname, 0, 0)) == -1) { + return NULL; + } + dirp = (DIR *) ckalloc(sizeof(DIR)); + if (dirp == NULL) { + /* unreachable? */ + close(fd); + return NULL; + } + dirp->dd_fd = fd; + dirp->dd_loc = 0; + return dirp; } /* @@ -46,62 +48,65 @@ char *name; #define ODIRSIZ 14 struct olddirect { - ino_t od_ino; - char od_name[ODIRSIZ]; + ino_t od_ino; + char od_name[ODIRSIZ]; }; #else /* a Pyramid in the ATT universe */ #define ODIRSIZ 248 struct olddirect { - long od_ino; - short od_fill1, od_fill2; - char od_name[ODIRSIZ]; + long od_ino; + short od_fill1, od_fill2; + char od_name[ODIRSIZ]; }; #endif /* * get next entry in a directory. */ + struct dirent * -readdir(dirp) -register DIR *dirp; +readdir( + register DIR *dirp) { - register struct olddirect *dp; - static struct dirent dir; + register struct olddirect *dp; + static struct dirent dir; - for (;;) { - if (dirp->dd_loc == 0) { - dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, - DIRBLKSIZ); - if (dirp->dd_size <= 0) - return NULL; - } - if (dirp->dd_loc >= dirp->dd_size) { - dirp->dd_loc = 0; - continue; - } - dp = (struct olddirect *)(dirp->dd_buf + dirp->dd_loc); - dirp->dd_loc += sizeof(struct olddirect); - if (dp->od_ino == 0) - continue; - dir.d_ino = dp->od_ino; - strncpy(dir.d_name, dp->od_name, ODIRSIZ); - dir.d_name[ODIRSIZ] = '\0'; /* insure null termination */ - dir.d_namlen = strlen(dir.d_name); - dir.d_reclen = DIRSIZ(&dir); - return (&dir); + for (;;) { + if (dirp->dd_loc == 0) { + dirp->dd_size = read(dirp->dd_fd, dirp->dd_buf, DIRBLKSIZ); + if (dirp->dd_size <= 0) { + return NULL; + } + } + if (dirp->dd_loc >= dirp->dd_size) { + dirp->dd_loc = 0; + continue; } + dp = (struct olddirect *)(dirp->dd_buf + dirp->dd_loc); + dirp->dd_loc += sizeof(struct olddirect); + if (dp->od_ino == 0) { + continue; + } + dir.d_ino = dp->od_ino; + strncpy(dir.d_name, dp->od_name, ODIRSIZ); + dir.d_name[ODIRSIZ] = '\0'; /* insure null termination */ + dir.d_namlen = strlen(dir.d_name); + dir.d_reclen = DIRSIZ(&dir); + return &dir; + } } /* * close a directory. */ + void -closedir(dirp) -register DIR *dirp; +closedir( + register DIR *dirp) { - close(dirp->dd_fd); - dirp->dd_fd = -1; - dirp->dd_loc = 0; - ckfree((char *) dirp); + close(dirp->dd_fd); + dirp->dd_fd = -1; + dirp->dd_loc = 0; + ckfree((char *) dirp); } |