stringf.c revision 98121
1/* 2 * Copyright (c) 2000-2001 Sendmail, Inc. and its suppliers. 3 * All rights reserved. 4 * 5 * By using this file, you agree to the terms and conditions set 6 * forth in the LICENSE file which can be found at the top level of 7 * the sendmail distribution. 8 */ 9 10#include <sm/gen.h> 11SM_RCSID("@(#)$Id: stringf.c,v 1.15 2001/09/11 04:04:49 gshapiro Exp $") 12#include <errno.h> 13#include <stdio.h> 14#include <sm/exc.h> 15#include <sm/heap.h> 16#include <sm/string.h> 17#include <sm/varargs.h> 18 19/* 20** SM_STRINGF_X -- printf() to dynamically allocated string. 21** 22** Takes the same arguments as printf. 23** It returns a pointer to a dynamically allocated string 24** containing the text that printf would print to standard output. 25** It raises an exception on error. 26** The name comes from a PWB Unix function called stringf. 27** 28** Parameters: 29** fmt -- format string. 30** ... -- arguments for format. 31** 32** Returns: 33** Pointer to a dynamically allocated string. 34** 35** Exceptions: 36** F:sm_heap -- out of memory (via sm_vstringf_x()). 37*/ 38 39char * 40#if SM_VA_STD 41sm_stringf_x(const char *fmt, ...) 42#else /* SM_VA_STD */ 43sm_stringf_x(fmt, va_alist) 44 const char *fmt; 45 va_dcl 46#endif /* SM_VA_STD */ 47{ 48 SM_VA_LOCAL_DECL 49 char *s; 50 51 SM_VA_START(ap, fmt); 52 s = sm_vstringf_x(fmt, ap); 53 SM_VA_END(ap); 54 return s; 55} 56 57/* 58** SM_VSTRINGF_X -- printf() to dynamically allocated string. 59** 60** Parameters: 61** fmt -- format string. 62** ap -- arguments for format. 63** 64** Returns: 65** Pointer to a dynamically allocated string. 66** 67** Exceptions: 68** F:sm_heap -- out of memory 69*/ 70 71char * 72sm_vstringf_x(fmt, ap) 73 const char *fmt; 74 SM_VA_LOCAL_DECL 75{ 76 char *s; 77 78 sm_vasprintf(&s, fmt, ap); 79 if (s == NULL) 80 { 81 if (errno == ENOMEM) 82 sm_exc_raise_x(&SmHeapOutOfMemory); 83 sm_exc_raisenew_x(&SmEtypeOs, errno, "sm_vasprintf", NULL); 84 } 85 return s; 86} 87