/* vi: set sw=4 ts=4: */ /* * Utility routines. * * Copyright (C) 1999-2004 by Erik Andersen * * Licensed under GPLv2 or later, see file LICENSE in this tarball for details. */ #include #include #include #include #include #include #include /* Since gcc always inlines strlen(), this saves a byte or two, but we need * the #undef here to avoid endless loop from #define strlen bb_strlen */ #ifdef L_strlen #define BB_STRLEN_IMPLEMENTATION #endif #include "libbb.h" #ifndef DMALLOC #ifdef L_xmalloc extern void *xmalloc(size_t size) { void *ptr = malloc(size); if (ptr == NULL && size != 0) bb_error_msg_and_die(bb_msg_memory_exhausted); return ptr; } #endif #ifdef L_xrealloc extern void *xrealloc(void *ptr, size_t size) { ptr = realloc(ptr, size); if (ptr == NULL && size != 0) bb_error_msg_and_die(bb_msg_memory_exhausted); return ptr; } #endif #ifdef L_xcalloc extern void *xcalloc(size_t nmemb, size_t size) { void *ptr = calloc(nmemb, size); if (ptr == NULL && nmemb != 0 && size != 0) bb_error_msg_and_die(bb_msg_memory_exhausted); return ptr; } #endif #endif /* DMALLOC */ #ifdef L_xstrdup extern char * bb_xstrdup (const char *s) { char *t; if (s == NULL) return NULL; t = strdup (s); if (t == NULL) bb_error_msg_and_die(bb_msg_memory_exhausted); return t; } #endif #ifdef L_xstrndup extern char * bb_xstrndup (const char *s, int n) { char *t; if (s == NULL) bb_error_msg_and_die("bb_xstrndup bug"); t = xmalloc(++n); return safe_strncpy(t,s,n); } #endif #ifdef L_xfopen FILE *bb_xfopen(const char *path, const char *mode) { FILE *fp; if ((fp = fopen(path, mode)) == NULL) bb_perror_msg_and_die("%s", path); return fp; } #endif #ifdef L_xopen extern int bb_xopen(const char *pathname, int flags) { int ret; ret = open(pathname, flags, 0777); if (ret == -1) { bb_perror_msg_and_die("%s", pathname); } return ret; } #endif #ifdef L_xread extern ssize_t bb_xread(int fd, void *buf, size_t count) { ssize_t size; size = read(fd, buf, count); if (size == -1) { bb_perror_msg_and_die(bb_msg_read_error); } return(size); } #endif #ifdef L_xread_all extern void bb_xread_all(int fd, void *buf, size_t count) { ssize_t size; while (count) { if ((size = bb_xread(fd, buf, count)) == 0) { /* EOF */ bb_error_msg_and_die("Short read"); } count -= size; buf = ((char *) buf) + size; } return; } #endif #ifdef L_xread_char extern unsigned char bb_xread_char(int fd) { char tmp; bb_xread_all(fd, &tmp, 1); return(tmp); } #endif #ifdef L_xferror extern void bb_xferror(FILE *fp, const char *fn) { if (ferror(fp)) { bb_error_msg_and_die("%s", fn); } } #endif #ifdef L_xferror_stdout extern void bb_xferror_stdout(void) { bb_xferror(stdout, bb_msg_standard_output); } #endif #ifdef L_xfflush_stdout extern void bb_xfflush_stdout(void) { if (fflush(stdout)) { bb_perror_msg_and_die(bb_msg_standard_output); } } #endif #ifdef L_strlen size_t bb_strlen(const char *string) { return(strlen(string)); } #endif /* END CODE */ /* Local Variables: c-file-style: "linux" c-basic-offset: 4 tab-width: 4 End: */