diff options
Diffstat (limited to 'which.c')
| -rw-r--r-- | which.c | 43 |
1 files changed, 12 insertions, 31 deletions
@@ -23,14 +23,12 @@ #include "internal.h" #include <stdio.h> -#include <sys/param.h> extern int which_main(int argc, char **argv) { - char *path_list, *test, *tmp, *path_parsed; - char buf[PATH_MAX]; + char *path_list, *path_n; struct stat filestat; - int count = 0; + int i, count=0; if (argc <= 1 || **(argv + 1) == '-') usage(which_usage); @@ -40,45 +38,28 @@ extern int which_main(int argc, char **argv) if (!path_list) path_list = "/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin"; - path_parsed = xmalloc (strlen(path_list) + 1); - strcpy (path_parsed, path_list); - /* Replace colons with zeros in path_parsed and count them */ - count = 1; - test = path_parsed; - while (1) { - tmp = strchr(test, ':'); - if (tmp == NULL) - break; - *tmp = 0; - test = tmp + 1; - count++; - } - + for(i=strlen(path_list); i > 0; i--) + if (path_list[i]==':') { + path_list[i]=0; + count++; + } while(argc-- > 0) { - int i; - int found = FALSE; - test = path_parsed; + path_n = path_list; argv++; for (i = 0; i < count; i++) { - strcpy (buf, test); + char buf[strlen(path_n)+1+strlen(*argv)]; + strcpy (buf, path_n); strcat (buf, "/"); strcat (buf, *argv); if (stat (buf, &filestat) == 0 && filestat.st_mode & S_IXUSR) { - found = TRUE; + printf ("%s\n", buf); break; } - test += (strlen(test) + 1); - } - if (found == TRUE) - printf ("%s\n", buf); - else - { - printf ("which: no %s in (%s)\n", *argv, path_list); - exit (FALSE); + path_n += (strlen(path_n) + 1); } } return(TRUE); |