diff options
Diffstat (limited to 'libbb/xfuncs.c')
| -rw-r--r-- | libbb/xfuncs.c | 142 |
1 files changed, 120 insertions, 22 deletions
diff --git a/libbb/xfuncs.c b/libbb/xfuncs.c index 8562a4f..699d09c 100644 --- a/libbb/xfuncs.c +++ b/libbb/xfuncs.c @@ -3,18 +3,12 @@ * Utility routines. * * Copyright (C) 1999-2004 by Erik Andersen <andersen@codepoet.org> + * Copyright (C) 2006 Rob Landley + * Copyright (C) 2006 Denis Vlasenko * * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. */ -#include <sys/types.h> -#include <sys/stat.h> -#include <sys/wait.h> -#include <stdio.h> -#include <string.h> -#include <stdlib.h> -#include <unistd.h> -#include <fcntl.h> #include "busybox.h" #ifndef DMALLOC @@ -59,7 +53,7 @@ void *xcalloc(size_t nmemb, size_t size) #endif /* DMALLOC */ #ifdef L_xstrdup -char * bb_xstrdup (const char *s) +char * xstrdup (const char *s) { char *t; @@ -76,12 +70,12 @@ char * bb_xstrdup (const char *s) #endif #ifdef L_xstrndup -char * bb_xstrndup (const char *s, int n) +char * xstrndup (const char *s, int n) { char *t; if (ENABLE_DEBUG && s == NULL) - bb_error_msg_and_die("bb_xstrndup bug"); + bb_error_msg_and_die("xstrndup bug"); t = xmalloc(++n); @@ -90,7 +84,7 @@ char * bb_xstrndup (const char *s, int n) #endif #ifdef L_xfopen -FILE *bb_xfopen(const char *path, const char *mode) +FILE *xfopen(const char *path, const char *mode) { FILE *fp; if ((fp = fopen(path, mode)) == NULL) @@ -100,14 +94,14 @@ FILE *bb_xfopen(const char *path, const char *mode) #endif #ifdef L_xopen -int bb_xopen(const char *pathname, int flags) +int xopen(const char *pathname, int flags) { - return bb_xopen3(pathname, flags, 0777); + return xopen3(pathname, flags, 0777); } #endif #ifdef L_xopen3 -int bb_xopen3(const char *pathname, int flags, int mode) +int xopen3(const char *pathname, int flags, int mode) { int ret; @@ -175,7 +169,7 @@ unsigned char xread_char(int fd) #endif #ifdef L_xferror -void bb_xferror(FILE *fp, const char *fn) +void xferror(FILE *fp, const char *fn) { if (ferror(fp)) { bb_error_msg_and_die("%s", fn); @@ -184,14 +178,14 @@ void bb_xferror(FILE *fp, const char *fn) #endif #ifdef L_xferror_stdout -void bb_xferror_stdout(void) +void xferror_stdout(void) { - bb_xferror(stdout, bb_msg_standard_output); + xferror(stdout, bb_msg_standard_output); } #endif #ifdef L_xfflush_stdout -void bb_xfflush_stdout(void) +void xfflush_stdout(void) { if (fflush(stdout)) { bb_perror_msg_and_die(bb_msg_standard_output); @@ -201,7 +195,7 @@ void bb_xfflush_stdout(void) #ifdef L_spawn // This does a fork/exec in one call, using vfork(). -pid_t bb_spawn(char **argv) +pid_t spawn(char **argv) { static int failed; pid_t pid; @@ -226,9 +220,9 @@ pid_t bb_spawn(char **argv) #endif #ifdef L_xspawn -pid_t bb_xspawn(char **argv) +pid_t xspawn(char **argv) { - pid_t pid = bb_spawn(argv); + pid_t pid = spawn(argv); if (pid < 0) bb_perror_msg_and_die("%s", *argv); return pid; } @@ -347,3 +341,107 @@ off_t fdlength(int fd) return pos + 1; } #endif + +#ifdef L_xasprintf +char *xasprintf(const char *format, ...) +{ + va_list p; + int r; + char *string_ptr; + +#if 1 + // GNU extension + va_start(p, format); + r = vasprintf(&string_ptr, format, p); + va_end(p); +#else + // Bloat for systems that haven't got the GNU extension. + va_start(p, format); + r = vsnprintf(NULL, 0, format, p); + va_end(p); + string_ptr = xmalloc(r+1); + va_start(p, format); + r = vsnprintf(string_ptr, r+1, format, p); + va_end(p); +#endif + + if (r < 0) bb_perror_msg_and_die("xasprintf"); + return string_ptr; +} +#endif + +#ifdef L_xprint_and_close_file +void xprint_and_close_file(FILE *file) +{ + // copyfd outputs error messages for us. + if (bb_copyfd_eof(fileno(file), 1) == -1) exit(bb_default_error_retval); + + fclose(file); +} +#endif + +#ifdef L_xchdir +void xchdir(const char *path) +{ + if (chdir(path)) + bb_perror_msg_and_die("chdir(%s)", path); +} +#endif + +#ifdef L_warn_opendir +DIR *warn_opendir(const char *path) +{ + DIR *dp; + + if ((dp = opendir(path)) == NULL) { + bb_perror_msg("unable to open `%s'", path); + return NULL; + } + return dp; +} +#endif + +#ifdef L_xopendir +DIR *xopendir(const char *path) +{ + DIR *dp; + + if ((dp = opendir(path)) == NULL) + bb_perror_msg_and_die("unable to open `%s'", path); + return dp; +} +#endif + +#ifdef L_xdaemon +#ifndef BB_NOMMU +void xdaemon(int nochdir, int noclose) +{ + if (daemon(nochdir, noclose)) bb_perror_msg_and_die("daemon"); +} +#endif +#endif + +#ifdef L_xbind +void xbind(int sockfd, struct sockaddr *my_addr, socklen_t addrlen) +{ + if (bind(sockfd, my_addr, addrlen)) bb_perror_msg_and_die("bind"); +} +#endif + +#ifdef L_xsocket +int xsocket(int domain, int type, int protocol) +{ + int r = socket(domain, type, protocol); + + if (r < 0) bb_perror_msg_and_die("socket"); + + return r; +} +#endif + +#ifdef L_xlisten +void xlisten(int s, int backlog) +{ + if (listen(s, backlog)) bb_perror_msg_and_die("listen"); +} +#endif |