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author | neksard <neksard@yandex-team.ru> | 2022-02-10 16:45:33 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:45:33 +0300 |
commit | 1d9c550e7c38e051d7961f576013a482003a70d9 (patch) | |
tree | b2cc84ee7850122e7ccf51d0ea21e4fa7e7a5685 /contrib/libs/c-ares/ares__read_line.c | |
parent | 8f7cf138264e0caa318144bf8a2c950e0b0a8593 (diff) | |
download | ydb-1d9c550e7c38e051d7961f576013a482003a70d9.tar.gz |
Restoring authorship annotation for <neksard@yandex-team.ru>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/c-ares/ares__read_line.c')
-rw-r--r-- | contrib/libs/c-ares/ares__read_line.c | 132 |
1 files changed, 66 insertions, 66 deletions
diff --git a/contrib/libs/c-ares/ares__read_line.c b/contrib/libs/c-ares/ares__read_line.c index 2cdca0147c..c62ad2a2b4 100644 --- a/contrib/libs/c-ares/ares__read_line.c +++ b/contrib/libs/c-ares/ares__read_line.c @@ -1,73 +1,73 @@ - -/* Copyright 1998 by the Massachusetts Institute of Technology. - * - * Permission to use, copy, modify, and distribute this - * software and its documentation for any purpose and without - * fee is hereby granted, provided that the above copyright - * notice appear in all copies and that both that copyright - * notice and this permission notice appear in supporting - * documentation, and that the name of M.I.T. not be used in - * advertising or publicity pertaining to distribution of the - * software without specific, written prior permission. - * M.I.T. makes no representations about the suitability of - * this software for any purpose. It is provided "as is" - * without express or implied warranty. - */ - -#include "ares_setup.h" - -#include "ares.h" -#include "ares_nowarn.h" -#include "ares_private.h" - -/* This is an internal function. Its contract is to read a line from - * a file into a dynamically allocated buffer, zeroing the trailing - * newline if there is one. The calling routine may call - * ares__read_line multiple times with the same buf and bufsize - * pointers; *buf will be reallocated and *bufsize adjusted as - * appropriate. The initial value of *buf should be NULL. After the - * calling routine is done reading lines, it should free *buf. - */ -int ares__read_line(FILE *fp, char **buf, size_t *bufsize) -{ - char *newbuf; - size_t offset = 0; - size_t len; - - if (*buf == NULL) - { + +/* Copyright 1998 by the Massachusetts Institute of Technology. + * + * Permission to use, copy, modify, and distribute this + * software and its documentation for any purpose and without + * fee is hereby granted, provided that the above copyright + * notice appear in all copies and that both that copyright + * notice and this permission notice appear in supporting + * documentation, and that the name of M.I.T. not be used in + * advertising or publicity pertaining to distribution of the + * software without specific, written prior permission. + * M.I.T. makes no representations about the suitability of + * this software for any purpose. It is provided "as is" + * without express or implied warranty. + */ + +#include "ares_setup.h" + +#include "ares.h" +#include "ares_nowarn.h" +#include "ares_private.h" + +/* This is an internal function. Its contract is to read a line from + * a file into a dynamically allocated buffer, zeroing the trailing + * newline if there is one. The calling routine may call + * ares__read_line multiple times with the same buf and bufsize + * pointers; *buf will be reallocated and *bufsize adjusted as + * appropriate. The initial value of *buf should be NULL. After the + * calling routine is done reading lines, it should free *buf. + */ +int ares__read_line(FILE *fp, char **buf, size_t *bufsize) +{ + char *newbuf; + size_t offset = 0; + size_t len; + + if (*buf == NULL) + { *buf = ares_malloc(128); - if (!*buf) - return ARES_ENOMEM; - *bufsize = 128; - } - - for (;;) - { - int bytestoread = aresx_uztosi(*bufsize - offset); - - if (!fgets(*buf + offset, bytestoread, fp)) - return (offset != 0) ? 0 : (ferror(fp)) ? ARES_EFILE : ARES_EOF; - len = offset + strlen(*buf + offset); - if ((*buf)[len - 1] == '\n') - { - (*buf)[len - 1] = 0; - break; - } - offset = len; - if(len < *bufsize - 1) - continue; - - /* Allocate more space. */ + if (!*buf) + return ARES_ENOMEM; + *bufsize = 128; + } + + for (;;) + { + int bytestoread = aresx_uztosi(*bufsize - offset); + + if (!fgets(*buf + offset, bytestoread, fp)) + return (offset != 0) ? 0 : (ferror(fp)) ? ARES_EFILE : ARES_EOF; + len = offset + strlen(*buf + offset); + if ((*buf)[len - 1] == '\n') + { + (*buf)[len - 1] = 0; + break; + } + offset = len; + if(len < *bufsize - 1) + continue; + + /* Allocate more space. */ newbuf = ares_realloc(*buf, *bufsize * 2); - if (!newbuf) + if (!newbuf) { ares_free(*buf); *buf = NULL; return ARES_ENOMEM; } - *buf = newbuf; - *bufsize *= 2; - } - return ARES_SUCCESS; -} + *buf = newbuf; + *bufsize *= 2; + } + return ARES_SUCCESS; +} |