diff options
author | Bodo Möller <bodo@openssl.org> | 2000-04-14 23:36:15 +0000 |
---|---|---|
committer | Bodo Möller <bodo@openssl.org> | 2000-04-14 23:36:15 +0000 |
commit | e5c84d5152c11a3dfa436041d3336a6f403baad8 (patch) | |
tree | 3351388a5836293b03eb594d42379fca04a13d44 /crypto | |
parent | d49f3797a5a891ebc13ea12eb64c55d1eb53c5c1 (diff) | |
download | openssl-e5c84d5152c11a3dfa436041d3336a6f403baad8.tar.gz |
New function ERR_error_string_n.
Diffstat (limited to 'crypto')
-rw-r--r-- | crypto/bio/b_print.c | 124 | ||||
-rw-r--r-- | crypto/bio/bio.h | 3 | ||||
-rw-r--r-- | crypto/err/err.c | 62 | ||||
-rw-r--r-- | crypto/err/err.h | 1 | ||||
-rw-r--r-- | crypto/err/err_prn.c | 6 |
5 files changed, 125 insertions, 71 deletions
diff --git a/crypto/bio/b_print.c b/crypto/bio/b_print.c index b11b501512..33fa27ac6c 100644 --- a/crypto/bio/b_print.c +++ b/crypto/bio/b_print.c @@ -78,48 +78,7 @@ # endif #endif -static void dopr (char *buffer, size_t maxlen, size_t *retlen, - const char *format, va_list args); -#ifdef USE_ALLOCATING_PRINT -static void doapr (char **buffer, size_t *retlen, - const char *format, va_list args); -#endif - -int BIO_printf (BIO *bio, ...) - { - va_list args; - char *format; - int ret; - size_t retlen; -#ifdef USE_ALLOCATING_PRINT - char *hugebuf; -#else - MS_STATIC char hugebuf[1024*2]; /* 10k in one chunk is the limit */ -#endif - - va_start(args, bio); - format=va_arg(args, char *); - -#ifndef USE_ALLOCATING_PRINT - hugebuf[0]='\0'; - dopr(hugebuf, sizeof(hugebuf), &retlen, format, args); -#else - hugebuf = NULL; - CRYPTO_push_info("doapr()"); - doapr(&hugebuf, &retlen, format, args); - if (hugebuf) - { -#endif - ret=BIO_write(bio, hugebuf, (int)retlen); - -#ifdef USE_ALLOCATING_PRINT - Free(hugebuf); - } - CRYPTO_pop_info(); -#endif - va_end(args); - return(ret); - } +/***************************************************************************/ /* * Copyright Patrick Powell 1995 @@ -140,6 +99,7 @@ int BIO_printf (BIO *bio, ...) * o Andrew Tridgell <tridge@samba.org> (1998, for Samba) * o Luke Mewburn <lukem@netbsd.org> (1999, for LukemFTP) * o Ralf S. Engelschall <rse@engelschall.com> (1999, for Pth) + * o ... (for OpenSSL) */ #if HAVE_LONG_DOUBLE @@ -161,18 +121,17 @@ static void fmtint (void (*)(char **, size_t *, size_t *, int), char **, size_t *, size_t *, LLONG, int, int, int, int); static void fmtfp (void (*)(char **, size_t *, size_t *, int), char **, size_t *, size_t *, LDOUBLE, int, int, int); -#ifndef USE_ALLOCATING_PRINT static int dopr_isbig (size_t, size_t); static int dopr_copy (size_t); static void dopr_outch (char **, size_t *, size_t *, int); -#else +#ifdef USE_ALLOCATING_PRINT static int doapr_isbig (size_t, size_t); static int doapr_copy (size_t); static void doapr_outch (char **, size_t *, size_t *, int); #endif static void _dopr(void (*)(char **, size_t *, size_t *, int), int (*)(size_t, size_t), int (*)(size_t), - char **buffer, size_t *maxlen, size_t *retlen, + char **buffer, size_t *maxlen, size_t *retlen, int *truncated, const char *format, va_list args); /* format read states */ @@ -213,8 +172,9 @@ dopr( const char *format, va_list args) { + int ignored; _dopr(dopr_outch, dopr_isbig, dopr_copy, - &buffer, &maxlen, retlen, format, args); + &buffer, &maxlen, retlen, &ignored, format, args); } #else @@ -226,8 +186,9 @@ doapr( va_list args) { size_t dummy_maxlen = 0; + int ignored; _dopr(doapr_outch, doapr_isbig, doapr_copy, - buffer, &dummy_maxlen, retlen, format, args); + buffer, &dummy_maxlen, retlen, &ignored, format, args); } #endif @@ -239,6 +200,7 @@ _dopr( char **buffer, size_t *maxlen, size_t *retlen, + int *truncated, const char *format, va_list args) { @@ -374,7 +336,7 @@ _dopr( break; } fmtint(outch_fn, buffer, &currlen, maxlen, - value, 10, min, max, flags); + value, 10, min, max, flags); break; case 'X': flags |= DP_F_UP; @@ -409,7 +371,7 @@ _dopr( else fvalue = va_arg(args, double); fmtfp(outch_fn, buffer, &currlen, maxlen, - fvalue, min, max, flags); + fvalue, min, max, flags); break; case 'E': flags |= DP_F_UP; @@ -436,7 +398,7 @@ _dopr( if (max < 0) max = (*copy_fn)(*maxlen); fmtstr(outch_fn, buffer, &currlen, maxlen, strvalue, - flags, min, max); + flags, min, max); break; case 'p': value = (long)va_arg(args, void *); @@ -484,7 +446,8 @@ _dopr( break; } } - if (currlen >= *maxlen - 1) + *truncated = (currlen > *maxlen - 1); + if (*truncated) currlen = *maxlen - 1; (*buffer)[currlen] = '\0'; *retlen = currlen; @@ -842,3 +805,62 @@ doapr_outch( return; } #endif + +/***************************************************************************/ + +int BIO_printf (BIO *bio, const char *format, ...) + { + va_list args; + int ret; + size_t retlen; +#ifdef USE_ALLOCATING_PRINT + char *hugebuf; +#else + MS_STATIC char hugebuf[1024*2]; /* 10k in one chunk is the limit */ +#endif + + va_start(args, format); + +#ifndef USE_ALLOCATING_PRINT + hugebuf[0]='\0'; + dopr(hugebuf, sizeof(hugebuf), &retlen, format, args); +#else + hugebuf = NULL; + CRYPTO_push_info("doapr()"); + doapr(&hugebuf, &retlen, format, args); + if (hugebuf) + { +#endif + ret=BIO_write(bio, hugebuf, (int)retlen); + +#ifdef USE_ALLOCATING_PRINT + Free(hugebuf); + } + CRYPTO_pop_info(); +#endif + va_end(args); + return(ret); + } + +/* As snprintf is not available everywhere, we provide our own implementation. + * This function has nothing to do with BIOs, but it's closely related + * to BIO_printf, and we need *some* name prefix ... + * (XXX the function should be renamed, but to what?) */ +int BIO_snprintf(char *buf, size_t n, const char *format, ...) + { + va_list args; + size_t retlen; + int truncated; + + va_start(args, format); + _dopr(dopr_outch, dopr_isbig, dopr_copy, + &buf, &n, &retlen, &truncated, format, args); + if (truncated) + /* In case of truncation, return -1 like traditional snprintf. + * (Current drafts for ISO/IEC 9899 say snprintf should return + * the number of characters that would have been written, + * had the buffer been large enough.) */ + return -1; + else + return (retlen <= INT_MAX) ? retlen : -1; + } diff --git a/crypto/bio/bio.h b/crypto/bio/bio.h index ebdb18170b..dd3cc3f470 100644 --- a/crypto/bio/bio.h +++ b/crypto/bio/bio.h @@ -592,7 +592,8 @@ void BIO_copy_next_retry(BIO *b); long BIO_ghbn_ctrl(int cmd,int iarg,char *parg); -int BIO_printf(BIO *bio, ...); +int BIO_printf(BIO *bio, const char *format, ...); +int BIO_snprintf(char *buf, size_t n, const char *format, ...); /* BEGIN ERROR CODES */ /* The following lines are auto generated by the script mkerr.pl. Any changes diff --git a/crypto/err/err.c b/crypto/err/err.c index cbbd326f74..a0135579f0 100644 --- a/crypto/err/err.c +++ b/crypto/err/err.c @@ -118,6 +118,7 @@ #include <openssl/buffer.h> #include <openssl/err.h> #include <openssl/crypto.h> +#include <openssl/bio.h> static LHASH *error_hash=NULL; @@ -477,13 +478,11 @@ static unsigned long get_error_values(int inc, const char **file, int *line, return(ret); } -/* BAD for multi-threaded, uses a local buffer if ret == NULL */ -char *ERR_error_string(unsigned long e, char *ret) +void ERR_error_string_n(unsigned long e, char *buf, size_t len) { - static char buf[256]; + char lsbuf[64], fsbuf[64], rsbuf[64]; const char *ls,*fs,*rs; unsigned long l,f,r; - int i; l=ERR_GET_LIB(e); f=ERR_GET_FUNC(e); @@ -493,21 +492,50 @@ char *ERR_error_string(unsigned long e, char *ret) fs=ERR_func_error_string(e); rs=ERR_reason_error_string(e); - if (ret == NULL) ret=buf; - - sprintf(&(ret[0]),"error:%08lX:",e); - i=strlen(ret); - if (ls == NULL) - sprintf(&(ret[i]),":lib(%lu) ",l); - else sprintf(&(ret[i]),"%s",ls); - i=strlen(ret); + if (ls == NULL) + BIO_snprintf(lsbuf, sizeof(lsbuf), "lib(%lu)", l); if (fs == NULL) - sprintf(&(ret[i]),":func(%lu) ",f); - else sprintf(&(ret[i]),":%s",fs); - i=strlen(ret); + BIO_snprintf(fsbuf, sizeof(fsbuf), "func(%lu)", f); if (rs == NULL) - sprintf(&(ret[i]),":reason(%lu)",r); - else sprintf(&(ret[i]),":%s",rs); + BIO_snprintf(rsbuf, sizeof(rsbuf), "reason(%lu)", r); + + BIO_snprintf(buf, len,"error:%08lX:%s:%s:%s", e, ls?ls:lsbuf, + fs?fs:fsbuf, rs?rs:rsbuf); + if (strlen(buf) == len-1) + { + /* output may be truncated; make sure we always have 5 + * colon-separated fields, i.e. 4 colons ... */ +#define NUM_COLONS 4 + if (len > NUM_COLONS) /* ... if possible */ + { + int i; + char *s = buf; + + for (i = 0; i < NUM_COLONS; i++) + { + char *colon = strchr(s, ':'); + if (colon == NULL || colon > &buf[len-1] - NUM_COLONS + i) + { + /* set colon no. i at last possible position + * (buf[len-1] is the terminating 0)*/ + colon = &buf[len-1] - NUM_COLONS + i; + *colon = ':'; + } + s = colon + 1; + } + } + } + } + +/* BAD for multi-threading: uses a local buffer if ret == NULL */ +/* ERR_error_string_n should be used instead for ret != NULL + * as ERR_error_string cannot know how large the buffer is */ +char *ERR_error_string(unsigned long e, char *ret) + { + static char buf[256]; + + if (ret == NULL) ret=buf; + ERR_error_string_n(e, buf, 256); return(ret); } diff --git a/crypto/err/err.h b/crypto/err/err.h index 35c4d97b76..e3984bb7a4 100644 --- a/crypto/err/err.h +++ b/crypto/err/err.h @@ -233,6 +233,7 @@ unsigned long ERR_peek_error_line_data(const char **file,int *line, const char **data,int *flags); void ERR_clear_error(void ); char *ERR_error_string(unsigned long e,char *buf); +void ERR_error_string_n(unsigned long e, char *buf, size_t len); const char *ERR_lib_error_string(unsigned long e); const char *ERR_func_error_string(unsigned long e); const char *ERR_reason_error_string(unsigned long e); diff --git a/crypto/err/err_prn.c b/crypto/err/err_prn.c index 0999ff214b..6f60b016c3 100644 --- a/crypto/err/err_prn.c +++ b/crypto/err/err_prn.c @@ -76,7 +76,8 @@ void ERR_print_errors_fp(FILE *fp) es=CRYPTO_thread_id(); while ((l=ERR_get_error_line_data(&file,&line,&data,&flags)) != 0) { - fprintf(fp,"%lu:%s:%s:%d:%s\n",es,ERR_error_string(l,buf), + ERR_error_string_n(l, buf, sizeof buf); + fprintf(fp,"%lu:%s:%s:%d:%s\n",es,buf, file,line,(flags&ERR_TXT_STRING)?data:""); } } @@ -94,7 +95,8 @@ void ERR_print_errors(BIO *bp) es=CRYPTO_thread_id(); while ((l=ERR_get_error_line_data(&file,&line,&data,&flags)) != 0) { - sprintf(buf2,"%lu:%s:%s:%d:",es,ERR_error_string(l,buf), + ERR_error_string_n(l, buf, sizeof buf); + sprintf(buf2,"%lu:%s:%s:%d:",es,buf, file,line); BIO_write(bp,buf2,strlen(buf2)); if (flags & ERR_TXT_STRING) |