Author: 0mp (doc,ports committer) Date: Thu Mar 5 14:52:24 2020 New Revision: 358674 URL: https://svnweb.freebsd.org/changeset/base/358674
Log: ftw.3: Add examples PR: 173448 [1] Submitted by: fernape@ (previous version) [1] Reviewed by: jilles Approved by: bcr (mentor) MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D21750 Modified: head/lib/libc/gen/ftw.3 Modified: head/lib/libc/gen/ftw.3 ============================================================================== --- head/lib/libc/gen/ftw.3 Thu Mar 5 14:41:27 2020 (r358673) +++ head/lib/libc/gen/ftw.3 Thu Mar 5 14:52:24 2020 (r358674) @@ -20,7 +20,7 @@ .\" .\" $FreeBSD$ .\" -.Dd July 5, 2004 +.Dd March 5, 2020 .Dt FTW 3 .Os .Sh NAME @@ -157,6 +157,65 @@ and will stop processing the tree and return the value from .Fa fn . Both functions return \-1 if an error is detected. +.Sh EXAMPLES +Following there is an example that shows how +.Nm nftw +can be used. +It traverses the file tree starting at the directory pointed +by the only program argument and shows the complete path and a brief +indicator about the file type. +.Bd -literal -offset 2n +#include <ftw.h> +#include <stdio.h> +#include <sysexits.h> + +int +nftw_callback(const char *path, const struct stat *sb, int typeflag, struct FTW *ftw) +{ + char type; + + switch(typeflag) { + case FTW_F: + type = 'F'; + break; + case FTW_D: + type = 'D'; + break; + case FTW_DNR: + type = '-'; + break; + case FTW_DP: + type = 'd'; + break; + case FTW_NS: + type = 'X'; + break; + case FTW_SL: + type = 'S'; + break; + case FTW_SLN: + type = 's'; + break; + default: + type = '?'; + break; + } + + printf("[%c] %s\\n", type, path); + + return (0); +} + +int +main(int argc, char **argv) +{ + if (argc != 2) { + printf("Usage %s <directory>\\n", argv[0]); + return (EX_USAGE); + } else + return (nftw(argv[1], nftw_callback, /* UNUSED */ 1, 0)); +} +.Ed .Sh ERRORS The .Fn ftw _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
