DeforaOS/utils
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Code cleanup

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This commit is contained in:
Pierre Pronchery 2009-10-20 14:19:59 +00:00
parent 84b191ee5b
commit 805cb07e39
1 changed files with 22 additions and 15 deletions
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37
src/ln.c
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@ -1,5 +1,5 @@
/* $Id$ */
/* Copyright (c) 2007 Pierre Pronchery <khorben@defora.org> */
/* Copyright (c) 2009 Pierre Pronchery <khorben@defora.org> */
/* This file is part of DeforaOS Unix utils */
/* utils is not free software; you can redistribute it and/or modify it under
* the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0
@ -33,6 +33,7 @@ typedef enum _LinkForce {
LF_NO,
LF_YES
} LinkForce;
/* link type */
typedef enum _LinkType {
LT_HARD = 0,
@ -47,9 +48,12 @@ typedef enum _LinkType {
* POST
* 0 success
* 2 error */
static int _ln_error(char const * message, int ret);
static int _ln_is_directory(char * dest);
static int _ln_single(LinkForce lf, LinkType lt, char * src, char * dest);
static int _ln_single(LinkForce lf, LinkType lt, char const * src,
char const * dest);
static int _ln_multiple(LinkForce lf, LinkType lt, int argc, char * argv[]);
static int _ln(LinkForce lf, LinkType lt, int argc, char * argv[])
{
if(argc == 2 && !_ln_is_directory(argv[1]))
@ -57,6 +61,13 @@ static int _ln(LinkForce lf, LinkType lt, int argc, char * argv[])
return _ln_multiple(lf, lt, argc, argv);
}
static int _ln_error(char const * message, int ret)
{
fputs("ln: ", stderr);
perror(message);
return ret;
}
static int _ln_is_directory(char * dest)
{
struct stat buf;
@ -66,37 +77,33 @@ static int _ln_is_directory(char * dest)
return 1;
}
static int _ln_single(LinkForce lf, LinkType lt, char * src, char * dest)
static int _ln_single(LinkForce lf, LinkType lt, char const * src,
char const * dest)
{
if(lf == LF_YES)
unlink(dest);
if((lt == LT_HARD ? link(src, dest)
: symlink(src, dest)) == -1)
{
fputs("ln: ", stderr);
perror(src);
return 2;
}
if((lt == LT_HARD ? link(src, dest) : symlink(src, dest)) == -1)
return _ln_error(dest, 1);
return 0;
}
static int _ln_multiple(LinkForce lf, LinkType lt, int argc, char * argv[])
{
int i;
ssize_t len;
char * dest = NULL;
char * p;
for(i = 0; i < argc - 1; i++)
{
if((p = realloc(dest, strlen(argv[argc-1]) + strlen(argv[i])
+ 2))
== NULL)
len = strlen(argv[argc - 1]) + strlen(argv[i]) + 2;
if((p = realloc(dest, len)) == NULL)
{
perror("ln");
_ln_error(argv[i], 0);
continue;
}
dest = p;
sprintf(dest, "%s/%s", argv[argc-1], argv[i]);
sprintf(dest, "%s/%s", argv[argc - 1], argv[i]);
_ln_single(lf, lt, argv[i], dest);
}
free(dest);