CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Sun Jun 16 19:41:39 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: libutil/snprintb: factor out common subexpression GCC 10 was not able to optimize the code size on its own, so offer a little help. To generate a diff of this commit: cvs rdiff -u -r1.48 -r1.49 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. Modified files: Index: src/common/lib/libutil/snprintb.c diff -u src/common/lib/libutil/snprintb.c:1.48 src/common/lib/libutil/snprintb.c:1.49 --- src/common/lib/libutil/snprintb.c:1.48 Sun Apr 7 15:20:16 2024 +++ src/common/lib/libutil/snprintb.c Sun Jun 16 19:41:39 2024 @@ -1,4 +1,4 @@ -/* $NetBSD: snprintb.c,v 1.48 2024/04/07 15:20:16 rillig Exp $ */ +/* $NetBSD: snprintb.c,v 1.49 2024/06/16 19:41:39 rillig Exp $ */ /*- * Copyright (c) 2002, 2024 The NetBSD Foundation, Inc. @@ -35,7 +35,7 @@ # include # if defined(LIBC_SCCS) -__RCSID("$NetBSD: snprintb.c,v 1.48 2024/04/07 15:20:16 rillig Exp $"); +__RCSID("$NetBSD: snprintb.c,v 1.49 2024/06/16 19:41:39 rillig Exp $"); # endif # include @@ -46,7 +46,7 @@ __RCSID("$NetBSD: snprintb.c,v 1.48 2024 # include # else /* ! _KERNEL */ # include -__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.48 2024/04/07 15:20:16 rillig Exp $"); +__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.49 2024/06/16 19:41:39 rillig Exp $"); # include # include # include @@ -252,17 +252,21 @@ finish_buffer(state *s) if (s->line_max > 0) { store_eol(s); store(s, '\0'); - if (s->bufsize >= 3 && s->total_len > s->bufsize) + if (s->total_len <= s->bufsize) + return; + if (s->bufsize >= 3) s->buf[s->bufsize - 3] = '#'; - if (s->bufsize >= 2 && s->total_len > s->bufsize) + if (s->bufsize >= 2) s->buf[s->bufsize - 2] = '\0'; - if (s->bufsize >= 1 && s->total_len > s->bufsize) + if (s->bufsize >= 1) s->buf[s->bufsize - 1] = '\0'; } else { store(s, '\0'); - if (s->bufsize >= 2 && s->total_len > s->bufsize) + if (s->total_len <= s->bufsize) + return; + if (s->bufsize >= 2) s->buf[s->bufsize - 2] = '#'; - if (s->bufsize >= 1 && s->total_len > s->bufsize) + if (s->bufsize >= 1) s->buf[s->bufsize - 1] = '\0'; } }
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Sun Jun 16 19:41:39 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: libutil/snprintb: factor out common subexpression GCC 10 was not able to optimize the code size on its own, so offer a little help. To generate a diff of this commit: cvs rdiff -u -r1.48 -r1.49 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Mon Apr 1 08:53:42 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: remove redundant memset in kernel mode The provided buffer is already null-terminated by finish_buffer, even in error cases, there is no need to repeat the same work. To generate a diff of this commit: cvs rdiff -u -r1.44 -r1.45 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. Modified files: Index: src/common/lib/libutil/snprintb.c diff -u src/common/lib/libutil/snprintb.c:1.44 src/common/lib/libutil/snprintb.c:1.45 --- src/common/lib/libutil/snprintb.c:1.44 Mon Mar 25 20:39:26 2024 +++ src/common/lib/libutil/snprintb.c Mon Apr 1 08:53:42 2024 @@ -1,4 +1,4 @@ -/* $NetBSD: snprintb.c,v 1.44 2024/03/25 20:39:26 rillig Exp $ */ +/* $NetBSD: snprintb.c,v 1.45 2024/04/01 08:53:42 rillig Exp $ */ /*- * Copyright (c) 2002, 2024 The NetBSD Foundation, Inc. @@ -35,7 +35,7 @@ # include # if defined(LIBC_SCCS) -__RCSID("$NetBSD: snprintb.c,v 1.44 2024/03/25 20:39:26 rillig Exp $"); +__RCSID("$NetBSD: snprintb.c,v 1.45 2024/04/01 08:53:42 rillig Exp $"); # endif # include @@ -46,7 +46,7 @@ __RCSID("$NetBSD: snprintb.c,v 1.44 2024 # include # else /* ! _KERNEL */ # include -__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.44 2024/03/25 20:39:26 rillig Exp $"); +__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.45 2024/04/01 08:53:42 rillig Exp $"); # include # include # include @@ -251,15 +251,6 @@ int snprintb_m(char *buf, size_t bufsize, const char *bitfmt, uint64_t val, size_t line_max) { -#ifdef _KERNEL - /* - * For safety; no other *s*printf() do this, but in the kernel - * we don't usually check the return value. - */ - if (bufsize > 0) - (void)memset(buf, 0, bufsize); -#endif /* _KERNEL */ - int old = *bitfmt != '\177'; if (!old) bitfmt++;
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Mon Apr 1 08:53:42 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: remove redundant memset in kernel mode The provided buffer is already null-terminated by finish_buffer, even in error cases, there is no need to repeat the same work. To generate a diff of this commit: cvs rdiff -u -r1.44 -r1.45 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Tue Mar 5 07:37:08 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: shrink code size, both in source and binary To generate a diff of this commit: cvs rdiff -u -r1.42 -r1.43 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Tue Mar 5 07:37:08 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: shrink code size, both in source and binary To generate a diff of this commit: cvs rdiff -u -r1.42 -r1.43 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. Modified files: Index: src/common/lib/libutil/snprintb.c diff -u src/common/lib/libutil/snprintb.c:1.42 src/common/lib/libutil/snprintb.c:1.43 --- src/common/lib/libutil/snprintb.c:1.42 Mon Mar 4 21:35:28 2024 +++ src/common/lib/libutil/snprintb.c Tue Mar 5 07:37:08 2024 @@ -1,4 +1,4 @@ -/* $NetBSD: snprintb.c,v 1.42 2024/03/04 21:35:28 rillig Exp $ */ +/* $NetBSD: snprintb.c,v 1.43 2024/03/05 07:37:08 rillig Exp $ */ /*- * Copyright (c) 2002, 2024 The NetBSD Foundation, Inc. @@ -35,17 +35,18 @@ # include # if defined(LIBC_SCCS) -__RCSID("$NetBSD: snprintb.c,v 1.42 2024/03/04 21:35:28 rillig Exp $"); +__RCSID("$NetBSD: snprintb.c,v 1.43 2024/03/05 07:37:08 rillig Exp $"); # endif # include # include # include +# include # include # include # else /* ! _KERNEL */ # include -__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.42 2024/03/04 21:35:28 rillig Exp $"); +__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.43 2024/03/05 07:37:08 rillig Exp $"); # include # include # include @@ -60,7 +61,7 @@ typedef struct { uint64_t const val; size_t const line_max; - const char *const num_fmt; + char num_fmt[5]; size_t total_len; size_t line_pos; size_t comma_pos; @@ -255,48 +256,42 @@ snprintb_m(char *buf, size_t bufsize, co if (!old) bitfmt++; - const char *num_fmt; - switch (*bitfmt++) { - case 8: - num_fmt = "%#jo"; - break; - case 10: - num_fmt = "%ju"; - break; - case 16: - num_fmt = "%#jx"; - break; - default: - num_fmt = NULL; - } - state s = { .buf = buf, .bufsize = bufsize, .bitfmt = bitfmt, .val = val, .line_max = line_max, - .num_fmt = num_fmt, }; - if (num_fmt == NULL) - goto internal; + int had_error = 0; - store_num(, num_fmt, val); + switch (*s.bitfmt++) { + case 8: + memcpy(s.num_fmt, "%#jo", 4); + break; + case 10: + memcpy(s.num_fmt, "%ju", 4); + break; + case 16: + memcpy(s.num_fmt, "%#jx", 4); + break; + default: + goto had_error; + } - if ((old ? old_style() : new_style()) < 0) - goto internal; + store_num(, s.num_fmt, val); - if (s.in_angle_brackets) - store(, '>'); - finish_buffer(); - return (int)(s.total_len - 1); -internal: + if ((old ? old_style() : new_style()) < 0) { +had_error: #ifndef _KERNEL - errno = EINVAL; + errno = EINVAL; #endif - store(, '#'); + had_error = 1; + store(, '#'); + } else if (s.in_angle_brackets) + store(, '>'); finish_buffer(); - return -1; + return had_error ? -1 : (int)(s.total_len - 1); } int
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Sat Feb 24 12:44:11 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: clean up Use consistent data types for buffer positions and lengths, to avoid type casts. To generate a diff of this commit: cvs rdiff -u -r1.40 -r1.41 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Sat Feb 24 12:44:11 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: clean up Use consistent data types for buffer positions and lengths, to avoid type casts. To generate a diff of this commit: cvs rdiff -u -r1.40 -r1.41 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. Modified files: Index: src/common/lib/libutil/snprintb.c diff -u src/common/lib/libutil/snprintb.c:1.40 src/common/lib/libutil/snprintb.c:1.41 --- src/common/lib/libutil/snprintb.c:1.40 Sat Feb 24 12:40:00 2024 +++ src/common/lib/libutil/snprintb.c Sat Feb 24 12:44:11 2024 @@ -1,7 +1,7 @@ -/* $NetBSD: snprintb.c,v 1.40 2024/02/24 12:40:00 rillig Exp $ */ +/* $NetBSD: snprintb.c,v 1.41 2024/02/24 12:44:11 rillig Exp $ */ /*- - * Copyright (c) 2002 The NetBSD Foundation, Inc. + * Copyright (c) 2002, 2024 The NetBSD Foundation, Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -26,12 +26,6 @@ * POSSIBILITY OF SUCH DAMAGE. */ -/* - * snprintb: print an interpreted bitmask to a buffer - * - * => returns the length of the buffer that would be required to print the - *string minus the terminating NUL. - */ #ifndef _STANDALONE # ifndef _KERNEL @@ -40,8 +34,8 @@ # endif # include -# if defined(LIBC_SCCS) && !defined(lint) -__RCSID("$NetBSD: snprintb.c,v 1.40 2024/02/24 12:40:00 rillig Exp $"); +# if defined(LIBC_SCCS) +__RCSID("$NetBSD: snprintb.c,v 1.41 2024/02/24 12:44:11 rillig Exp $"); # endif # include @@ -51,7 +45,7 @@ __RCSID("$NetBSD: snprintb.c,v 1.40 2024 # include # else /* ! _KERNEL */ # include -__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.40 2024/02/24 12:40:00 rillig Exp $"); +__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.41 2024/02/24 12:44:11 rillig Exp $"); # include # include # include @@ -67,10 +61,10 @@ typedef struct { size_t const line_max; const char *const num_fmt; - unsigned total_len; - unsigned line_pos; - unsigned comma_pos; - char sep; + size_t total_len; + size_t line_pos; + size_t comma_pos; + int in_angle_brackets; } state; static void @@ -94,39 +88,39 @@ store_num(state *s, const char *fmt, uin } static void -put_eol(state *s) +store_eol(state *s) { if (s->total_len - s->line_pos > s->line_max) { - s->total_len = (unsigned)(s->line_pos + s->line_max - 1); + s->total_len = s->line_pos + s->line_max - 1; store(s, '#'); } store(s, '\0'); s->line_pos = s->total_len; s->comma_pos = 0; - s->sep = '<'; + s->in_angle_brackets = 0; } static void -put_sep(state *s) +store_delimiter(state *s) { - if (s->sep == ',') { + if (s->in_angle_brackets) { s->comma_pos = s->total_len; store(s, ','); } else { store(s, '<'); - s->sep = ','; + s->in_angle_brackets = 1; } } static void -wrap_if_necessary(state *s, const char *bitfmt) +maybe_wrap_line(state *s, const char *bitfmt) { if (s->line_max > 0 && s->comma_pos > 0 && s->total_len - s->line_pos >= s->line_max) { s->total_len = s->comma_pos; store(s, '>'); - put_eol(s); + store_eol(s); store_num(s, s->num_fmt, s->val); s->bitfmt = bitfmt; } @@ -141,10 +135,10 @@ old_style(state *s) if (bit > ' ') return -1; if (s->val & (1U << (bit - 1))) { - put_sep(s); + store_delimiter(s); while ((uint8_t)*++s->bitfmt > ' ') store(s, *s->bitfmt); - wrap_if_necessary(s, cur_bitfmt); + maybe_wrap_line(s, cur_bitfmt); } else while ((uint8_t)*++s->bitfmt > ' ') continue; @@ -170,10 +164,10 @@ new_style(state *s) s->bitfmt += 2; if (((s->val >> b_bit) & 1) == 0) goto skip_description; - put_sep(s); + store_delimiter(s); while (*s->bitfmt++ != '\0') store(s, s->bitfmt[-1]); - wrap_if_necessary(s, cur_bitfmt); + maybe_wrap_line(s, cur_bitfmt); break; case 'f': case 'F': @@ -189,14 +183,14 @@ new_style(state *s) if (f_width < 64) field &= ((uint64_t) 1 << f_width) - 1; s->bitfmt += 3; - put_sep(s); + store_delimiter(s); if (kind == 'F') goto skip_description; while (*s->bitfmt++ != '\0') store(s, s->bitfmt[-1]); store(s, '='); store_num(s, s->num_fmt, field); - wrap_if_necessary(s, cur_bitfmt); + maybe_wrap_line(s, cur_bitfmt); break; case '=': case ':': @@ -209,7 +203,7 @@ new_style(state *s) store(s, '='); while (*s->bitfmt++ != '\0') store(s, s->bitfmt[-1]); - wrap_if_necessary(s, prev_bitfmt); + maybe_wrap_line(s, prev_bitfmt); break; case '*': s->bitfmt++; @@ -218,7 +212,7 @@ new_style(state *s) matched = 1; if (store_num(s, s->bitfmt, field) < 0) return -1; - wrap_if_necessary(s, prev_bitfmt); + maybe_wrap_line(s, prev_bitfmt); goto skip_description; default: s->bitfmt += 2; @@ -235,7 +229,7 @@ static void finish_buffer(state
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Sat Feb 17 10:23:30 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: convert macros to local functions Let the compiler decide whether to inline the functions; allow stepping through the code in a debugger. To generate a diff of this commit: cvs rdiff -u -r1.34 -r1.35 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. Modified files: Index: src/common/lib/libutil/snprintb.c diff -u src/common/lib/libutil/snprintb.c:1.34 src/common/lib/libutil/snprintb.c:1.35 --- src/common/lib/libutil/snprintb.c:1.34 Fri Feb 16 21:25:46 2024 +++ src/common/lib/libutil/snprintb.c Sat Feb 17 10:23:30 2024 @@ -1,4 +1,4 @@ -/* $NetBSD: snprintb.c,v 1.34 2024/02/16 21:25:46 rillig Exp $ */ +/* $NetBSD: snprintb.c,v 1.35 2024/02/17 10:23:30 rillig Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. @@ -41,7 +41,7 @@ # include # if defined(LIBC_SCCS) && !defined(lint) -__RCSID("$NetBSD: snprintb.c,v 1.34 2024/02/16 21:25:46 rillig Exp $"); +__RCSID("$NetBSD: snprintb.c,v 1.35 2024/02/17 10:23:30 rillig Exp $"); # endif # include @@ -51,7 +51,7 @@ __RCSID("$NetBSD: snprintb.c,v 1.34 2024 # include # else /* ! _KERNEL */ # include -__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.34 2024/02/16 21:25:46 rillig Exp $"); +__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.35 2024/02/17 10:23:30 rillig Exp $"); # include # include # include @@ -59,14 +59,204 @@ __KERNEL_RCSID(0, "$NetBSD: snprintb.c,v # endif /* ! _KERNEL */ # ifndef HAVE_SNPRINTB_M +typedef struct { + char *const buf; + size_t const bufsize; + const char *bitfmt; + uint64_t const val; + size_t const line_max; + + const char *const num_fmt; + unsigned const val_len; + unsigned total_len; + unsigned line_len; + + const char *cur_bitfmt; + int restart; + + const char *sep_bitfmt; + unsigned sep_line_len; + char sep; +} state; + +static void +store(state *s, char c) +{ + if (s->total_len < s->bufsize) + s->buf[s->total_len] = c; + s->total_len++; + s->line_len++; +} + +static void +backup(state *s) +{ + if (s->sep_line_len > 0) { + s->total_len -= s->line_len - s->sep_line_len; + s->sep_line_len = 0; + s->restart = 1; + s->bitfmt = s->sep_bitfmt; + } + store(s, '>'); + store(s, '\0'); + if (s->total_len < s->bufsize) + snprintf(s->buf + s->total_len, s->bufsize - s->total_len, + s->num_fmt, (uintmax_t)s->val); + s->total_len += s->val_len; + s->line_len = s->val_len; +} + +static void +put_sep(state *s) +{ + if (s->line_max > 0 && s->line_len >= s->line_max) { + backup(s); + store(s, '<'); + } else { + if (s->line_max > 0 && s->sep != '<') { + s->sep_line_len = s->line_len; + s->sep_bitfmt = s->cur_bitfmt; + } + store(s, s->sep); + s->restart = 0; + } +} + +static void +put_chr(state *s, char c) +{ + if (s->line_max > 0 && s->line_len >= s->line_max - 1) { + backup(s); + if (s->restart == 0) + store(s, c); + else + s->sep = '<'; + } else { + store(s, c); + s->restart = 0; + } +} + +static void +put_bitfmt(state *s) +{ + while (*s->bitfmt++ != 0) { + put_chr(s, s->bitfmt[-1]); + if (s->restart) + break; + } +} + +static int +put_num(state *s, const char *fmt, uintmax_t v) +{ + char *bp = s->total_len < s->bufsize ? s->buf + s->total_len : NULL; + size_t n = s->total_len < s->bufsize ? s->bufsize - s->total_len : 0; + int fmt_len = snprintf(bp, n, fmt, v); + if (fmt_len >= 0) { + s->total_len += fmt_len; + s->line_len += fmt_len; + } + return fmt_len; +} + +static void +old_style(state *s) +{ + for (uint8_t bit; (bit = *s->bitfmt) != 0;) { + s->cur_bitfmt = s->bitfmt++; + if (s->val & (1U << (bit - 1))) { + put_sep(s); + if (s->restart) +continue; + s->sep = ','; + for (; *s->bitfmt > ' '; ++s->bitfmt) { +put_chr(s, *s->bitfmt); +if (s->restart) + break; + } + } else + for (; *s->bitfmt > ' '; ++s->bitfmt) +continue; + } +} + +static int +new_style(state *s) +{ + uint64_t field = s->val; + int matched = 1; + while (*s->bitfmt != '\0') { + uint8_t kind = *s->bitfmt++; + uint8_t bit = *s->bitfmt++; + switch (kind) { + case 'b': + if (((s->val >> bit) & 1) == 0) +goto skip; + s->cur_bitfmt = s->bitfmt - 2; + put_sep(s); + if (s->restart) +break; + put_bitfmt(s); + if (s->restart == 0) +s->sep = ','; + break; + case 'f': + case 'F': + matched = 0; + s->cur_bitfmt = s->bitfmt - 2; + uint8_t field_width = *s->bitfmt++; + field = (s->val >> bit) & + (((uint64_t)1 << field_width) - 1); + put_sep(s); + if (s->restart == 0) +s->sep = ','; + if (kind == 'F') +goto skip; + if (s->restart == 0) +put_bitfmt(s); + if (s->restart == 0) +put_chr(s, '='); + if (s->restart == 0) { +if (put_num(s, s->num_fmt, field) < 0) + return -1; +if (s->line_max > 0 +&& s->line_len > s->line_max) +
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Sat Feb 17 10:23:30 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: convert macros to local functions Let the compiler decide whether to inline the functions; allow stepping through the code in a debugger. To generate a diff of this commit: cvs rdiff -u -r1.34 -r1.35 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Fri Feb 16 21:25:46 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: do not modify bufsize when producing multiple lines To generate a diff of this commit: cvs rdiff -u -r1.33 -r1.34 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. Modified files: Index: src/common/lib/libutil/snprintb.c diff -u src/common/lib/libutil/snprintb.c:1.33 src/common/lib/libutil/snprintb.c:1.34 --- src/common/lib/libutil/snprintb.c:1.33 Fri Feb 16 19:53:40 2024 +++ src/common/lib/libutil/snprintb.c Fri Feb 16 21:25:46 2024 @@ -1,4 +1,4 @@ -/* $NetBSD: snprintb.c,v 1.33 2024/02/16 19:53:40 rillig Exp $ */ +/* $NetBSD: snprintb.c,v 1.34 2024/02/16 21:25:46 rillig Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. @@ -41,7 +41,7 @@ # include # if defined(LIBC_SCCS) && !defined(lint) -__RCSID("$NetBSD: snprintb.c,v 1.33 2024/02/16 19:53:40 rillig Exp $"); +__RCSID("$NetBSD: snprintb.c,v 1.34 2024/02/16 21:25:46 rillig Exp $"); # endif # include @@ -51,7 +51,7 @@ __RCSID("$NetBSD: snprintb.c,v 1.33 2024 # include # else /* ! _KERNEL */ # include -__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.33 2024/02/16 19:53:40 rillig Exp $"); +__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.34 2024/02/16 21:25:46 rillig Exp $"); # include # include # include @@ -92,10 +92,6 @@ snprintb_m(char *buf, size_t bufsize, co goto internal; } - /* Reserve space for trailing blank line if needed */ - if (line_max > 0) - bufsize--; - int val_len = snprintf(buf, bufsize, num_fmt, (uintmax_t)val); if (val_len < 0) goto internal; @@ -268,13 +264,12 @@ snprintb_m(char *buf, size_t bufsize, co if (sep != '<') STORE('>'); if (line_max > 0) { - bufsize++; STORE('\0'); - if (total_len >= bufsize && bufsize > 1) + if (bufsize >= 2 && total_len > bufsize - 2) buf[bufsize - 2] = '\0'; } STORE('\0'); - if (total_len >= bufsize && bufsize > 0) + if (bufsize >= 1 && total_len > bufsize - 1) buf[bufsize - 1] = '\0'; return (int)(total_len - 1); internal:
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Fri Feb 16 21:25:46 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: do not modify bufsize when producing multiple lines To generate a diff of this commit: cvs rdiff -u -r1.33 -r1.34 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Fri Feb 16 19:31:25 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: use size_t for buffer sizes and positions To generate a diff of this commit: cvs rdiff -u -r1.31 -r1.32 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. Modified files: Index: src/common/lib/libutil/snprintb.c diff -u src/common/lib/libutil/snprintb.c:1.31 src/common/lib/libutil/snprintb.c:1.32 --- src/common/lib/libutil/snprintb.c:1.31 Fri Feb 16 19:20:38 2024 +++ src/common/lib/libutil/snprintb.c Fri Feb 16 19:31:25 2024 @@ -1,4 +1,4 @@ -/* $NetBSD: snprintb.c,v 1.31 2024/02/16 19:20:38 rillig Exp $ */ +/* $NetBSD: snprintb.c,v 1.32 2024/02/16 19:31:25 rillig Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. @@ -41,7 +41,7 @@ # include # if defined(LIBC_SCCS) && !defined(lint) -__RCSID("$NetBSD: snprintb.c,v 1.31 2024/02/16 19:20:38 rillig Exp $"); +__RCSID("$NetBSD: snprintb.c,v 1.32 2024/02/16 19:31:25 rillig Exp $"); # endif # include @@ -51,7 +51,7 @@ __RCSID("$NetBSD: snprintb.c,v 1.31 2024 # include # else /* ! _KERNEL */ # include -__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.31 2024/02/16 19:20:38 rillig Exp $"); +__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.32 2024/02/16 19:31:25 rillig Exp $"); # include # include # include @@ -65,7 +65,6 @@ snprintb_m(char *buf, size_t bufsize, co { char *bp = buf, *sep_bp = NULL; const char *num_fmt, *cur_bitfmt, *sep_bitfmt = NULL; - int total_len, val_len, line_len, sep_line_len = 0; char sep; int restart = 0; @@ -98,20 +97,20 @@ snprintb_m(char *buf, size_t bufsize, co if (line_max > 0) bufsize--; - total_len = snprintf(bp, bufsize, num_fmt, (uintmax_t)val); - if (total_len < 0) + int val_len = snprintf(bp, bufsize, num_fmt, (uintmax_t)val); + if (val_len < 0) goto internal; - val_len = line_len = total_len; + size_t total_len = val_len, line_len = val_len, sep_line_len = 0; - if ((size_t)total_len < bufsize) + if (total_len < bufsize) bp += total_len; else bp += bufsize - 1; #define STORE(c) do { \ line_len++; \ - if ((size_t)(++total_len) < bufsize) \ + if (++total_len < bufsize)\ *bp++ = (c); \ } while (0) @@ -125,7 +124,7 @@ snprintb_m(char *buf, size_t bufsize, co } \ STORE('>'); \ STORE('\0'); \ - if ((size_t)total_len < bufsize) \ + if (total_len < bufsize)\ snprintf(bp, bufsize - total_len, num_fmt, \ (uintmax_t)val);\ total_len += val_len; \ @@ -134,7 +133,7 @@ snprintb_m(char *buf, size_t bufsize, co } while (0) #define PUTSEP() do { \ - if (line_max > 0 && (size_t)line_len >= line_max) { \ + if (line_max > 0 && line_len >= line_max) { \ BACKUP(); \ STORE('<'); \ } else { \ @@ -150,7 +149,7 @@ snprintb_m(char *buf, size_t bufsize, co } while (0) #define PUTCHR(c) do { \ - if (line_max > 0 && (size_t)line_len >= line_max - 1) { \ + if (line_max > 0 && line_len >= line_max - 1) { \ BACKUP(); \ if (restart == 0)\ STORE(c);\ @@ -171,14 +170,14 @@ snprintb_m(char *buf, size_t bufsize, co } while (0) #define FMTSTR(sb, f) do { \ - size_t n = (size_t)total_len < bufsize \ + size_t n = total_len < bufsize\ ? bufsize - total_len : 0;\ int fmt_len = snprintf(bp, n, sb, (uintmax_t)f); \ if (fmt_len < 0) \ goto internal; \ total_len += fmt_len; \ line_len += fmt_len; \ - if ((size_t)total_len < bufsize) \ + if (total_len < bufsize)\ bp += fmt_len; \ } while (0) @@ -243,7 +242,7 @@ snprintb_m(char *buf, size_t bufsize, co if (restart == 0) { FMTSTR(num_fmt, field); if (line_max > 0 - && (size_t)line_len > line_max) + && line_len > line_max) PUTCHR('#'); } break; @@ -282,13 +281,13 @@ snprintb_m(char *buf, size_t bufsize, co if (line_max > 0) { bufsize++; STORE('\0'); - if ((size_t)total_len >= bufsize && bufsize > 1) + if (total_len >= bufsize && bufsize > 1) buf[bufsize - 2] = '\0'; } STORE('\0'); - if ((size_t)total_len >= bufsize && bufsize > 0) + if (total_len >= bufsize && bufsize > 0) buf[bufsize - 1] = '\0'; - return total_len - 1; + return (int)(total_len - 1); internal: #ifndef _KERNEL errno = EINVAL;
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Fri Feb 16 19:31:25 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: use size_t for buffer sizes and positions To generate a diff of this commit: cvs rdiff -u -r1.31 -r1.32 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Fri Feb 16 18:17:10 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: use unsigned integers for parsing the bitfmt To generate a diff of this commit: cvs rdiff -u -r1.29 -r1.30 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. Modified files: Index: src/common/lib/libutil/snprintb.c diff -u src/common/lib/libutil/snprintb.c:1.29 src/common/lib/libutil/snprintb.c:1.30 --- src/common/lib/libutil/snprintb.c:1.29 Fri Feb 16 18:09:15 2024 +++ src/common/lib/libutil/snprintb.c Fri Feb 16 18:17:10 2024 @@ -1,4 +1,4 @@ -/* $NetBSD: snprintb.c,v 1.29 2024/02/16 18:09:15 rillig Exp $ */ +/* $NetBSD: snprintb.c,v 1.30 2024/02/16 18:17:10 rillig Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. @@ -41,7 +41,7 @@ # include # if defined(LIBC_SCCS) && !defined(lint) -__RCSID("$NetBSD: snprintb.c,v 1.29 2024/02/16 18:09:15 rillig Exp $"); +__RCSID("$NetBSD: snprintb.c,v 1.30 2024/02/16 18:17:10 rillig Exp $"); # endif # include @@ -51,7 +51,7 @@ __RCSID("$NetBSD: snprintb.c,v 1.29 2024 # include # else /* ! _KERNEL */ # include -__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.29 2024/02/16 18:09:15 rillig Exp $"); +__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.30 2024/02/16 18:17:10 rillig Exp $"); # include # include # include @@ -184,7 +184,7 @@ snprintb_m(char *buf, size_t bufsize, co sep = '<'; if (old_style) { /* old-style format, 32-bit, 1-origin. */ - for (int bit; (bit = *bitfmt) != 0;) { + for (uint8_t bit; (bit = *bitfmt) != 0;) { cur_bitfmt = bitfmt++; if (val & (1U << (bit - 1))) { PUTSEP(); @@ -205,7 +205,7 @@ snprintb_m(char *buf, size_t bufsize, co uint64_t field = val; int matched = 1; while (*bitfmt != '\0') { - char kind = *bitfmt++; + uint8_t kind = *bitfmt++; uint8_t bit = *bitfmt++; switch (kind) { case 'b': @@ -223,7 +223,7 @@ snprintb_m(char *buf, size_t bufsize, co case 'F': matched = 0; cur_bitfmt = bitfmt - 2; -int field_width = *bitfmt++; +uint8_t field_width = *bitfmt++; field = (val >> bit) & (((uint64_t)1 << field_width) - 1); PUTSEP();
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Fri Feb 16 18:17:10 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: use unsigned integers for parsing the bitfmt To generate a diff of this commit: cvs rdiff -u -r1.29 -r1.30 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Fri Feb 16 18:03:16 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: eliminate a few local variables To generate a diff of this commit: cvs rdiff -u -r1.27 -r1.28 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. Modified files: Index: src/common/lib/libutil/snprintb.c diff -u src/common/lib/libutil/snprintb.c:1.27 src/common/lib/libutil/snprintb.c:1.28 --- src/common/lib/libutil/snprintb.c:1.27 Fri Feb 16 17:42:49 2024 +++ src/common/lib/libutil/snprintb.c Fri Feb 16 18:03:16 2024 @@ -1,4 +1,4 @@ -/* $NetBSD: snprintb.c,v 1.27 2024/02/16 17:42:49 rillig Exp $ */ +/* $NetBSD: snprintb.c,v 1.28 2024/02/16 18:03:16 rillig Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. @@ -41,7 +41,7 @@ # include # if defined(LIBC_SCCS) && !defined(lint) -__RCSID("$NetBSD: snprintb.c,v 1.27 2024/02/16 17:42:49 rillig Exp $"); +__RCSID("$NetBSD: snprintb.c,v 1.28 2024/02/16 18:03:16 rillig Exp $"); # endif # include @@ -51,7 +51,7 @@ __RCSID("$NetBSD: snprintb.c,v 1.27 2024 # include # else /* ! _KERNEL */ # include -__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.27 2024/02/16 17:42:49 rillig Exp $"); +__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.28 2024/02/16 18:03:16 rillig Exp $"); # include # include # include @@ -64,9 +64,9 @@ snprintb_m(char *buf, size_t bufsize, co size_t line_max) { char *bp = buf, *sep_bp = NULL; - const char *c_fmt, *sep_fmt = NULL, *cur_fmt; - const char *num_fmt; - int ch, total_len, sep_line_len = 0, line_len, val_len, sep; + const char *num_fmt, *cur_bitfmt, *sep_bitfmt = NULL; + int total_len, val_len, line_len, sep_line_len = 0; + char sep; int restart = 0; #ifdef _KERNEL @@ -77,8 +77,10 @@ snprintb_m(char *buf, size_t bufsize, co (void)memset(buf, 0, bufsize); #endif /* _KERNEL */ - ch = *bitfmt++; - switch (ch != '\177' ? ch : *bitfmt++) { + int old_style = *bitfmt != '\177'; + if (!old_style) + bitfmt++; + switch (*bitfmt++) { case 8: num_fmt = "%#jo"; break; @@ -107,9 +109,6 @@ snprintb_m(char *buf, size_t bufsize, co else bp += bufsize - 1; - if (val == 0 && ch != '\177') - goto done; - #define STORE(c) do { \ line_len++; \ if ((size_t)(++total_len) < bufsize) \ @@ -122,7 +121,7 @@ snprintb_m(char *buf, size_t bufsize, co sep_bp = NULL; \ total_len -= line_len - sep_line_len; \ restart = 1; \ - bitfmt = sep_fmt;\ + bitfmt = sep_bitfmt;\ } \ STORE('>'); \ STORE('\0'); \ @@ -143,7 +142,7 @@ snprintb_m(char *buf, size_t bufsize, co if (line_max > 0 && sep != '<') { \ sep_line_len = line_len; \ sep_bp = bp;\ -sep_fmt = cur_fmt; \ +sep_bitfmt = cur_bitfmt; \ } \ STORE(sep); \ restart = 0; \ @@ -164,8 +163,8 @@ snprintb_m(char *buf, size_t bufsize, co } while (0) #define PUTS(s) do { \ - while ((ch = *(s)++) != 0) {\ - PUTCHR(ch); \ + while ((*(s)++) != 0) { \ + PUTCHR((s)[-1]);\ if (restart) \ break; \ } \ @@ -183,17 +182,17 @@ snprintb_m(char *buf, size_t bufsize, co } while (0) sep = '<'; - if (ch != '\177') { + if (old_style) { /* old-style format, 32-bit, 1-origin. */ for (int bit; (bit = *bitfmt) != 0;) { - cur_fmt = bitfmt++; + cur_bitfmt = bitfmt++; if (val & (1U << (bit - 1))) { PUTSEP(); if (restart) continue; sep = ','; -for (; (ch = *bitfmt) > ' '; ++bitfmt) { - PUTCHR(ch); +for (; *bitfmt > ' '; ++bitfmt) { + PUTCHR(*bitfmt); if (restart) break; } @@ -205,13 +204,14 @@ snprintb_m(char *buf, size_t bufsize, co /* new-style format, 64-bit, 0-origin; also does fields. */ uint64_t field = val; int matched = 1; - while (c_fmt = bitfmt, (ch = *bitfmt++) != '\0') { + while (*bitfmt != '\0') { + char kind = *bitfmt++; int bit = *bitfmt++; - switch (ch) { + switch (kind) { case 'b': if (((val >> bit) & 1) == 0) goto skip; -cur_fmt = c_fmt; +cur_bitfmt = bitfmt - 2; PUTSEP(); if (restart) break; @@ -222,14 +222,14 @@ snprintb_m(char *buf, size_t bufsize, co case 'f': case 'F': matched = 0; -cur_fmt = c_fmt; +cur_bitfmt = bitfmt - 2; int field_width = *bitfmt++; field = (val >> bit) & (((uint64_t)1 << field_width) - 1); PUTSEP(); if (restart == 0) sep = ','; -if (ch == 'F') { /* just extract */ +if (kind == 'F') { /* just extract */ /* duplicate PUTS() effect on bitfmt */ while (*bitfmt++ != '\0') continue; @@ -257,7 +257,7 @@ snprintb_m(char *buf, size_t bufsize, co if ((int)field != bit) goto skip; matched = 1; -if (ch == '=') +if (kind == '=') PUTCHR('='); PUTS(bitfmt);
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Fri Feb 16 18:03:16 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: eliminate a few local variables To generate a diff of this commit: cvs rdiff -u -r1.27 -r1.28 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Fri Feb 16 17:42:50 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: rename local variables The single-letter variables 't', 's', 'l' and 'c' were too hard to decipher. The variable 'f_len' was used for two independent purposes. Use a narrow scope for some variables, to avoid having to keep track of 22 individual variables at the same time. No binary change. To generate a diff of this commit: cvs rdiff -u -r1.26 -r1.27 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. Modified files: Index: src/common/lib/libutil/snprintb.c diff -u src/common/lib/libutil/snprintb.c:1.26 src/common/lib/libutil/snprintb.c:1.27 --- src/common/lib/libutil/snprintb.c:1.26 Fri Feb 16 01:57:50 2024 +++ src/common/lib/libutil/snprintb.c Fri Feb 16 17:42:49 2024 @@ -1,4 +1,4 @@ -/* $NetBSD: snprintb.c,v 1.26 2024/02/16 01:57:50 rillig Exp $ */ +/* $NetBSD: snprintb.c,v 1.27 2024/02/16 17:42:49 rillig Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. @@ -41,7 +41,7 @@ # include # if defined(LIBC_SCCS) && !defined(lint) -__RCSID("$NetBSD: snprintb.c,v 1.26 2024/02/16 01:57:50 rillig Exp $"); +__RCSID("$NetBSD: snprintb.c,v 1.27 2024/02/16 17:42:49 rillig Exp $"); # endif # include @@ -51,7 +51,7 @@ __RCSID("$NetBSD: snprintb.c,v 1.26 2024 # include # else /* ! _KERNEL */ # include -__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.26 2024/02/16 01:57:50 rillig Exp $"); +__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.27 2024/02/16 17:42:49 rillig Exp $"); # include # include # include @@ -61,14 +61,13 @@ __KERNEL_RCSID(0, "$NetBSD: snprintb.c,v # ifndef HAVE_SNPRINTB_M int snprintb_m(char *buf, size_t bufsize, const char *bitfmt, uint64_t val, - size_t l_max) + size_t line_max) { - char *bp = buf, *s_bp = NULL; - const char *c_fmt, *s_fmt = NULL, *cur_fmt; - const char *sbase; - int bit, ch, t_len, s_len = 0, l_len, f_len, v_len, sep; - int restart = 0, matched = 1; - uint64_t field; + char *bp = buf, *sep_bp = NULL; + const char *c_fmt, *sep_fmt = NULL, *cur_fmt; + const char *num_fmt; + int ch, total_len, sep_line_len = 0, line_len, val_len, sep; + int restart = 0; #ifdef _KERNEL /* @@ -81,73 +80,70 @@ snprintb_m(char *buf, size_t bufsize, co ch = *bitfmt++; switch (ch != '\177' ? ch : *bitfmt++) { case 8: - sbase = "%#jo"; + num_fmt = "%#jo"; break; case 10: - sbase = "%ju"; + num_fmt = "%ju"; break; case 16: - sbase = "%#jx"; + num_fmt = "%#jx"; break; default: goto internal; } /* Reserve space for trailing blank line if needed */ - if (l_max > 0) + if (line_max > 0) bufsize--; - t_len = snprintf(bp, bufsize, sbase, (uintmax_t)val); - if (t_len < 0) + total_len = snprintf(bp, bufsize, num_fmt, (uintmax_t)val); + if (total_len < 0) goto internal; - v_len = l_len = t_len; + val_len = line_len = total_len; - if ((size_t)t_len < bufsize) - bp += t_len; + if ((size_t)total_len < bufsize) + bp += total_len; else bp += bufsize - 1; - /* - * If the value we printed was 0 and we're using the old-style format, - * we're done. - */ if (val == 0 && ch != '\177') - goto terminate; + goto done; #define STORE(c) do { \ - l_len++; \ - if ((size_t)(++t_len) < bufsize) \ + line_len++; \ + if ((size_t)(++total_len) < bufsize) \ *bp++ = (c); \ } while (0) #define BACKUP() do { \ - if (s_bp != NULL) { \ - bp = s_bp; \ - s_bp = NULL; \ - t_len -= l_len - s_len;\ + if (sep_bp != NULL) { \ + bp = sep_bp; \ + sep_bp = NULL; \ + total_len -= line_len - sep_line_len; \ restart = 1; \ - bitfmt = s_fmt; \ + bitfmt = sep_fmt;\ } \ STORE('>'); \ STORE('\0'); \ - if ((size_t)t_len < bufsize)\ - snprintf(bp, bufsize - t_len, sbase, (uintmax_t)val);\ - t_len += v_len; \ - l_len = v_len; \ - bp += v_len; \ + if ((size_t)total_len < bufsize) \ + snprintf(bp, bufsize - total_len, num_fmt, \ + (uintmax_t)val);\ + total_len += val_len; \ + line_len = val_len; \ + bp += val_len; \ } while (0) #define PUTSEP() do { \ - if (l_max > 0 && (size_t)l_len >= l_max) { \ + if (line_max > 0 && (size_t)line_len >= line_max) { \ BACKUP(); \ STORE('<'); \ } else { \ /* Remember separator location */ \ - if (l_max > 0 && sep != '<') { \ -s_len = l_len;\ -s_bp = bp;\ -s_fmt = cur_fmt; \ + if (line_max > 0 && sep != '<') { \ +sep_line_len = line_len; \ +sep_bp = bp;\ +sep_fmt = cur_fmt; \ } \ STORE(sep); \ restart = 0; \ @@ -155,7 +151,7 @@ snprintb_m(char *buf, size_t bufsize, co } while (0) #define PUTCHR(c) do { \ - if (l_max > 0 && (size_t)l_len >=
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Fri Feb 16 17:42:50 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: rename local variables The single-letter variables 't', 's', 'l' and 'c' were too hard to decipher. The variable 'f_len' was used for two independent purposes. Use a narrow scope for some variables, to avoid having to keep track of 22 individual variables at the same time. No binary change. To generate a diff of this commit: cvs rdiff -u -r1.26 -r1.27 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Fri Feb 16 01:57:51 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: clean up Remove redundant parentheses and casts. Indent statement-like macros consistently, use separate lines for each statement, add parentheses to macro definitions. Remove CONSTCOND comments as lint doesn't need them anymore. No binary change. To generate a diff of this commit: cvs rdiff -u -r1.25 -r1.26 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. Modified files: Index: src/common/lib/libutil/snprintb.c diff -u src/common/lib/libutil/snprintb.c:1.25 src/common/lib/libutil/snprintb.c:1.26 --- src/common/lib/libutil/snprintb.c:1.25 Thu Feb 15 23:48:51 2024 +++ src/common/lib/libutil/snprintb.c Fri Feb 16 01:57:50 2024 @@ -1,4 +1,4 @@ -/* $NetBSD: snprintb.c,v 1.25 2024/02/15 23:48:51 rillig Exp $ */ +/* $NetBSD: snprintb.c,v 1.26 2024/02/16 01:57:50 rillig Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. @@ -41,7 +41,7 @@ # include # if defined(LIBC_SCCS) && !defined(lint) -__RCSID("$NetBSD: snprintb.c,v 1.25 2024/02/15 23:48:51 rillig Exp $"); +__RCSID("$NetBSD: snprintb.c,v 1.26 2024/02/16 01:57:50 rillig Exp $"); # endif # include @@ -51,7 +51,7 @@ __RCSID("$NetBSD: snprintb.c,v 1.25 2024 # include # else /* ! _KERNEL */ # include -__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.25 2024/02/15 23:48:51 rillig Exp $"); +__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.26 2024/02/16 01:57:50 rillig Exp $"); # include # include # include @@ -112,70 +112,78 @@ snprintb_m(char *buf, size_t bufsize, co * If the value we printed was 0 and we're using the old-style format, * we're done. */ - if ((val == 0) && (ch != '\177')) + if (val == 0 && ch != '\177') goto terminate; -#define STORE(c) do { l_len++; \ - if ((size_t)(++t_len) < bufsize) \ - *bp++ = (c); \ - } while ( /* CONSTCOND */ 0) - -#define BACKUP do { if (s_bp != NULL) {\ - bp = s_bp; s_bp = NULL;\ +#define STORE(c) do { \ + l_len++; \ + if ((size_t)(++t_len) < bufsize) \ + *bp++ = (c); \ + } while (0) + +#define BACKUP() do { \ + if (s_bp != NULL) { \ + bp = s_bp; \ + s_bp = NULL; \ t_len -= l_len - s_len;\ restart = 1; \ bitfmt = s_fmt; \ - } \ - STORE('>'); STORE('\0');\ - if ((size_t)t_len < bufsize)\ + } \ + STORE('>'); \ + STORE('\0'); \ + if ((size_t)t_len < bufsize)\ snprintf(bp, bufsize - t_len, sbase, (uintmax_t)val);\ - t_len += v_len; l_len = v_len; bp += v_len; \ - } while ( /* CONSTCOND */ 0) - -#define PUTSEP do { \ - if (l_max > 0 && (size_t)l_len >= l_max) { \ -BACKUP; \ -STORE('<');\ - } else { \ -/* Remember separator location */ \ -if (l_max > 0 && sep != '<') { \ - s_len = l_len; \ - s_bp = bp; \ - s_fmt = cur_fmt; \ -} \ -STORE(sep);\ -restart = 0;\ + t_len += v_len; \ + l_len = v_len; \ + bp += v_len; \ + } while (0) + +#define PUTSEP() do { \ + if (l_max > 0 && (size_t)l_len >= l_max) { \ + BACKUP(); \ + STORE('<'); \ + } else { \ + /* Remember separator location */ \ + if (l_max > 0 && sep != '<') { \ +s_len = l_len;\ +s_bp = bp;\ +s_fmt = cur_fmt; \ } \ - } while ( /* CONSTCOND */ 0) + STORE(sep); \ + restart = 0; \ + } \ + } while (0) #define PUTCHR(c) do { \ - if (l_max > 0 && (size_t)l_len >= (l_max - 1)) {\ -BACKUP; \ -if (restart == 0) \ - STORE(c); \ -else \ - sep = '<'; \ - } else { \ + if (l_max > 0 && (size_t)l_len >= l_max - 1) { \ + BACKUP(); \ + if (restart == 0)\ STORE(c);\ -restart = 0;\ - } \ - } while ( /* CONSTCOND */ 0) + else \ +sep = '<';\ + } else { \ + STORE(c); \ + restart = 0; \ + } \ + } while (0) -#define PUTS(s) while ((ch = *(s)++) != 0) {\ +#define PUTS(s) do { \ + while ((ch = *(s)++) != 0) {\ PUTCHR(ch); \ if (restart) \ break; \ - } -#define FMTSTR(sb, f) \ - do { \ + } \ + } while (0) + +#define FMTSTR(sb, f) do { \ f_len = snprintf(bp, bufsize - t_len, sb, (uintmax_t)f); \ - if (f_len < 0) \ - goto internal; \ - t_len += f_len; \ - l_len += f_len; \ - if ((size_t)t_len < bufsize) \ - bp += f_len; \ - } while (/*CONSTCOND*/0) + if (f_len < 0) \ + goto internal; \ + t_len += f_len; \ + l_len += f_len; \ + if ((size_t)t_len < bufsize)\ + bp += f_len; \ + } while (0) /* * Chris Torek's new bitmask format is identified by a leading \177 @@ -183,10 +191,10 @@
CVS commit: src/common/lib/libutil
Module Name:src Committed By: rillig Date: Fri Feb 16 01:57:51 UTC 2024 Modified Files: src/common/lib/libutil: snprintb.c Log Message: snprintb: clean up Remove redundant parentheses and casts. Indent statement-like macros consistently, use separate lines for each statement, add parentheses to macro definitions. Remove CONSTCOND comments as lint doesn't need them anymore. No binary change. To generate a diff of this commit: cvs rdiff -u -r1.25 -r1.26 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
CVS commit: src/common/lib/libutil
Module Name:src Committed By: christos Date: Mon Jun 17 17:03:58 UTC 2019 Modified Files: src/common/lib/libutil: snprintb.c Log Message: PR/54300: Andreas Gustafsson: Remove useless case. should fix lib/libutil/t_snprintb test regression on sparc To generate a diff of this commit: cvs rdiff -u -r1.20 -r1.21 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
CVS commit: src/common/lib/libutil
Module Name:src Committed By: christos Date: Mon Jun 17 17:03:58 UTC 2019 Modified Files: src/common/lib/libutil: snprintb.c Log Message: PR/54300: Andreas Gustafsson: Remove useless case. should fix lib/libutil/t_snprintb test regression on sparc To generate a diff of this commit: cvs rdiff -u -r1.20 -r1.21 src/common/lib/libutil/snprintb.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files. Modified files: Index: src/common/lib/libutil/snprintb.c diff -u src/common/lib/libutil/snprintb.c:1.20 src/common/lib/libutil/snprintb.c:1.21 --- src/common/lib/libutil/snprintb.c:1.20 Mon Apr 29 03:55:38 2019 +++ src/common/lib/libutil/snprintb.c Mon Jun 17 13:03:58 2019 @@ -1,4 +1,4 @@ -/* $NetBSD: snprintb.c,v 1.20 2019/04/29 07:55:38 kre Exp $ */ +/* $NetBSD: snprintb.c,v 1.21 2019/06/17 17:03:58 christos Exp $ */ /*- * Copyright (c) 2002 The NetBSD Foundation, Inc. @@ -41,7 +41,7 @@ # include # if defined(LIBC_SCCS) && !defined(lint) -__RCSID("$NetBSD: snprintb.c,v 1.20 2019/04/29 07:55:38 kre Exp $"); +__RCSID("$NetBSD: snprintb.c,v 1.21 2019/06/17 17:03:58 christos Exp $"); # endif # include @@ -51,7 +51,7 @@ __RCSID("$NetBSD: snprintb.c,v 1.20 2019 # include # else /* ! _KERNEL */ # include -__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.20 2019/04/29 07:55:38 kre Exp $"); +__KERNEL_RCSID(0, "$NetBSD: snprintb.c,v 1.21 2019/06/17 17:03:58 christos Exp $"); # include # include # include @@ -168,7 +168,7 @@ snprintb_m(char *buf, size_t buflen, con } #define FMTSTR(sb, f) \ do { \ - f_len = snprintf(bp, buflen - t_len, sb, (int)f); \ + f_len = snprintf(bp, buflen - t_len, sb, f); \ if (f_len < 0) \ goto internal; \ t_len += f_len; \