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| author | Lorenz Kästle <12514511+RincewindsHat@users.noreply.github.com> | 2025-12-28 12:50:39 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-12-28 12:50:39 +0100 |
| commit | e7dd07c8025b169b7b43b955066a7200d9cdf244 (patch) | |
| tree | 6e8c927cfc67f3708b91ac79df07707af26e4929 /gl/vsnprintf.c | |
| parent | 828a9720b10814c5836d03aa35af05d196c4104b (diff) | |
| parent | b0afb8fe0ff1d87165af9df61501197a06240dda (diff) | |
| download | monitoring-plugins-e7dd07c8025b169b7b43b955066a7200d9cdf244.tar.gz | |
Merge pull request #2213 from RincewindsHat/update/gnulib
Sync with Gnulib stable-202507 code (a8ac9f9ce5)
Diffstat (limited to 'gl/vsnprintf.c')
| -rw-r--r-- | gl/vsnprintf.c | 41 |
1 files changed, 7 insertions, 34 deletions
diff --git a/gl/vsnprintf.c b/gl/vsnprintf.c index e6676a1f..d3d7ef7a 100644 --- a/gl/vsnprintf.c +++ b/gl/vsnprintf.c | |||
| @@ -1,6 +1,5 @@ | |||
| 1 | /* Formatted output to strings. | 1 | /* Formatted output to strings. |
| 2 | Copyright (C) 2004, 2006-2024 Free Software Foundation, Inc. | 2 | Copyright (C) 2004, 2006-2025 Free Software Foundation, Inc. |
| 3 | Written by Simon Josefsson and Yoann Vandoorselaere <yoann@prelude-ids.org>. | ||
| 4 | 3 | ||
| 5 | This file is free software: you can redistribute it and/or modify | 4 | This file is free software: you can redistribute it and/or modify |
| 6 | it under the terms of the GNU Lesser General Public License as | 5 | it under the terms of the GNU Lesser General Public License as |
| @@ -25,46 +24,20 @@ | |||
| 25 | #include <errno.h> | 24 | #include <errno.h> |
| 26 | #include <limits.h> | 25 | #include <limits.h> |
| 27 | #include <stdarg.h> | 26 | #include <stdarg.h> |
| 28 | #include <stdlib.h> | 27 | #include <stdint.h> |
| 29 | #include <string.h> | ||
| 30 | 28 | ||
| 31 | #include "vasnprintf.h" | ||
| 32 | |||
| 33 | /* Print formatted output to string STR. Similar to vsprintf, but | ||
| 34 | additional length SIZE limit how much is written into STR. Returns | ||
| 35 | string length of formatted string (which may be larger than SIZE). | ||
| 36 | STR may be NULL, in which case nothing will be written. On error, | ||
| 37 | return a negative value. */ | ||
| 38 | int | 29 | int |
| 39 | vsnprintf (char *str, size_t size, const char *format, va_list args) | 30 | vsnprintf (char *str, size_t size, const char *format, va_list args) |
| 40 | { | 31 | { |
| 41 | char *output; | 32 | ptrdiff_t ret = vsnzprintf (str, size, format, args); |
| 42 | size_t len; | ||
| 43 | size_t lenbuf = size; | ||
| 44 | |||
| 45 | output = vasnprintf (str, &lenbuf, format, args); | ||
| 46 | len = lenbuf; | ||
| 47 | |||
| 48 | if (!output) | ||
| 49 | return -1; | ||
| 50 | |||
| 51 | if (output != str) | ||
| 52 | { | ||
| 53 | if (size) | ||
| 54 | { | ||
| 55 | size_t pruned_len = (len < size ? len : size - 1); | ||
| 56 | memcpy (str, output, pruned_len); | ||
| 57 | str[pruned_len] = '\0'; | ||
| 58 | } | ||
| 59 | |||
| 60 | free (output); | ||
| 61 | } | ||
| 62 | 33 | ||
| 63 | if (len > INT_MAX) | 34 | #if PTRDIFF_MAX > INT_MAX |
| 35 | if (ret > INT_MAX) | ||
| 64 | { | 36 | { |
| 65 | errno = EOVERFLOW; | 37 | errno = EOVERFLOW; |
| 66 | return -1; | 38 | return -1; |
| 67 | } | 39 | } |
| 40 | #endif | ||
| 68 | 41 | ||
| 69 | return len; | 42 | return ret; |
| 70 | } | 43 | } |
