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6095b9bd3c
When using the mingw printf shims for C99 compat the msvc format specifiers don't work and the build fails. Ideally we would use glib functions which abstract this away, but in the error handler context we shouldn't call back into glib. And for scanf we don't have a glib wrapper. Instead call the "secure" versions provided by the win32 API (_snprintf_s/fprintf_s/sscanf_s) which mingw doesn't replace.
79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
/* gwin32-private.c - private glib functions for gwin32.c
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*
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* Copyright 2019 Руслан Ижбулатов
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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/* Copy @cmdline into @debugger, and substitute @pid for `%p`
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* and @event for `%e`.
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* If @debugger_size (in bytes) is overflowed, return %FALSE.
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* Also returns %FALSE when `%` is followed by anything other
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* than `e` or `p`.
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*/
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static gboolean
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_g_win32_subst_pid_and_event (char *debugger,
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gsize debugger_size,
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const char *cmdline,
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DWORD pid,
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guintptr event)
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{
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gsize i = 0, dbg_i = 0;
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/* These are integers, and they can't be longer than 20 characters
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* even when they are 64-bit and in decimal notation.
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* Use 30 just to be sure.
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*/
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#define STR_BUFFER_SIZE 30
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char pid_str[STR_BUFFER_SIZE] = {0};
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gsize pid_str_len;
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char event_str[STR_BUFFER_SIZE] = {0};
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gsize event_str_len;
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_snprintf_s (pid_str, STR_BUFFER_SIZE, G_N_ELEMENTS (pid_str), "%lu", pid);
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pid_str[G_N_ELEMENTS (pid_str) - 1] = 0;
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pid_str_len = strlen (pid_str);
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_snprintf_s (event_str, STR_BUFFER_SIZE, G_N_ELEMENTS (pid_str), "%Iu", event);
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event_str[G_N_ELEMENTS (pid_str) - 1] = 0;
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event_str_len = strlen (event_str);
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#undef STR_BUFFER_SIZE
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while (cmdline[i] != 0 && dbg_i < debugger_size)
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{
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if (cmdline[i] != '%')
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debugger[dbg_i++] = cmdline[i++];
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else if (cmdline[i + 1] == 'p')
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{
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gsize j = 0;
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while (j < pid_str_len && dbg_i < debugger_size)
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debugger[dbg_i++] = pid_str[j++];
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i += 2;
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}
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else if (cmdline[i + 1] == 'e')
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{
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gsize j = 0;
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while (j < event_str_len && dbg_i < debugger_size)
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debugger[dbg_i++] = event_str[j++];
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i += 2;
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}
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else
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return FALSE;
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}
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if (dbg_i < debugger_size)
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debugger[dbg_i] = 0;
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else
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return FALSE;
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return TRUE;
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}
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