diff options
Diffstat (limited to 'Source/kwsys/System.c')
| -rw-r--r-- | Source/kwsys/System.c | 221 |
1 files changed, 80 insertions, 141 deletions
diff --git a/Source/kwsys/System.c b/Source/kwsys/System.c index ccc7e81..43c60c5 100644 --- a/Source/kwsys/System.c +++ b/Source/kwsys/System.c @@ -1,27 +1,18 @@ -/*============================================================================ - KWSys - Kitware System Library - Copyright 2000-2009 Kitware, Inc., Insight Software Consortium - - Distributed under the OSI-approved BSD License (the "License"); - see accompanying file Copyright.txt for details. - - This software is distributed WITHOUT ANY WARRANTY; without even the - implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. - See the License for more information. -============================================================================*/ +/* Distributed under the OSI-approved BSD 3-Clause License. See accompanying + file Copyright.txt or https://cmake.org/licensing#kwsys for details. */ #include "kwsysPrivate.h" #include KWSYS_HEADER(System.h) /* Work-around CMake dependency scanning limitation. This must duplicate the above list of headers. */ #if 0 -# include "System.h.in" +#include "System.h.in" #endif +#include <ctype.h> /* isspace */ #include <stddef.h> /* ptrdiff_t */ #include <stdlib.h> /* malloc, free */ #include <string.h> /* memcpy */ -#include <ctype.h> /* isspace */ #include <stdio.h> @@ -32,28 +23,24 @@ typedef int kwsysSystem_ptrdiff_t; #endif /*--------------------------------------------------------------------------*/ -static int kwsysSystem__AppendByte(char* local, - char** begin, char** end, +static int kwsysSystem__AppendByte(char* local, char** begin, char** end, int* size, char c) { /* Allocate space for the character. */ - if((*end - *begin) >= *size) - { + if ((*end - *begin) >= *size) { kwsysSystem_ptrdiff_t length = *end - *begin; - char* newBuffer = (char*)malloc((size_t)(*size*2)); - if(!newBuffer) - { + char* newBuffer = (char*)malloc((size_t)(*size * 2)); + if (!newBuffer) { return 0; - } - memcpy(newBuffer, *begin, (size_t)(length)*sizeof(char)); - if(*begin != local) - { + } + memcpy(newBuffer, *begin, (size_t)(length) * sizeof(char)); + if (*begin != local) { free(*begin); - } + } *begin = newBuffer; *end = *begin + length; *size *= 2; - } + } /* Store the character. */ *(*end)++ = c; @@ -61,47 +48,41 @@ static int kwsysSystem__AppendByte(char* local, } /*--------------------------------------------------------------------------*/ -static int kwsysSystem__AppendArgument(char** local, - char*** begin, char*** end, - int* size, - char* arg_local, +static int kwsysSystem__AppendArgument(char** local, char*** begin, + char*** end, int* size, char* arg_local, char** arg_begin, char** arg_end, int* arg_size) { /* Append a null-terminator to the argument string. */ - if(!kwsysSystem__AppendByte(arg_local, arg_begin, arg_end, arg_size, '\0')) - { + if (!kwsysSystem__AppendByte(arg_local, arg_begin, arg_end, arg_size, + '\0')) { return 0; - } + } /* Allocate space for the argument pointer. */ - if((*end - *begin) >= *size) - { + if ((*end - *begin) >= *size) { kwsysSystem_ptrdiff_t length = *end - *begin; - char** newPointers = (char**)malloc((size_t)(*size)*2*sizeof(char*)); - if(!newPointers) - { + char** newPointers = (char**)malloc((size_t)(*size) * 2 * sizeof(char*)); + if (!newPointers) { return 0; - } - memcpy(newPointers, *begin, (size_t)(length)*sizeof(char*)); - if(*begin != local) - { + } + memcpy(newPointers, *begin, (size_t)(length) * sizeof(char*)); + if (*begin != local) { free(*begin); - } + } *begin = newPointers; *end = *begin + length; *size *= 2; - } + } /* Allocate space for the argument string. */ **end = (char*)malloc((size_t)(*arg_end - *arg_begin)); - if(!**end) - { + if (!**end) { return 0; - } + } /* Store the argument in the command array. */ - memcpy(**end, *arg_begin,(size_t)(*arg_end - *arg_begin)); + memcpy(**end, *arg_begin, (size_t)(*arg_end - *arg_begin)); ++(*end); /* Reset the argument to be empty. */ @@ -135,150 +116,109 @@ static char** kwsysSystem__ParseUnixCommand(const char* command, int flags) int in_single = 0; int in_double = 0; int failed = 0; - for(;*c; ++c) - { - if(in_escape) - { + for (; *c; ++c) { + if (in_escape) { /* This character is escaped so do no special handling. */ - if(!in_argument) - { + if (!in_argument) { in_argument = 1; - } - if(!kwsysSystem__AppendByte(local_buffer, &buffer_begin, - &buffer_end, &buffer_size, *c)) - { + } + if (!kwsysSystem__AppendByte(local_buffer, &buffer_begin, &buffer_end, + &buffer_size, *c)) { failed = 1; break; - } - in_escape = 0; } - else if(*c == '\\') - { + in_escape = 0; + } else if (*c == '\\') { /* The next character should be escaped. */ in_escape = 1; - } - else if(*c == '\'' && !in_double) - { + } else if (*c == '\'' && !in_double) { /* Enter or exit single-quote state. */ - if(in_single) - { + if (in_single) { in_single = 0; - } - else - { + } else { in_single = 1; - if(!in_argument) - { + if (!in_argument) { in_argument = 1; - } } } - else if(*c == '"' && !in_single) - { + } else if (*c == '"' && !in_single) { /* Enter or exit double-quote state. */ - if(in_double) - { + if (in_double) { in_double = 0; - } - else - { + } else { in_double = 1; - if(!in_argument) - { + if (!in_argument) { in_argument = 1; - } } } - else if(isspace((unsigned char) *c)) - { - if(in_argument) - { - if(in_single || in_double) - { + } else if (isspace((unsigned char)*c)) { + if (in_argument) { + if (in_single || in_double) { /* This space belongs to a quoted argument. */ - if(!kwsysSystem__AppendByte(local_buffer, &buffer_begin, - &buffer_end, &buffer_size, *c)) - { + if (!kwsysSystem__AppendByte(local_buffer, &buffer_begin, + &buffer_end, &buffer_size, *c)) { failed = 1; break; - } } - else - { + } else { /* This argument has been terminated by whitespace. */ - if(!kwsysSystem__AppendArgument(local_pointers, &pointer_begin, - &pointer_end, &pointers_size, - local_buffer, &buffer_begin, - &buffer_end, &buffer_size)) - { + if (!kwsysSystem__AppendArgument( + local_pointers, &pointer_begin, &pointer_end, &pointers_size, + local_buffer, &buffer_begin, &buffer_end, &buffer_size)) { failed = 1; break; - } - in_argument = 0; } + in_argument = 0; } } - else - { + } else { /* This character belong to an argument. */ - if(!in_argument) - { + if (!in_argument) { in_argument = 1; - } - if(!kwsysSystem__AppendByte(local_buffer, &buffer_begin, - &buffer_end, &buffer_size, *c)) - { + } + if (!kwsysSystem__AppendByte(local_buffer, &buffer_begin, &buffer_end, + &buffer_size, *c)) { failed = 1; break; - } } } + } /* Finish the last argument. */ - if(in_argument) - { - if(!kwsysSystem__AppendArgument(local_pointers, &pointer_begin, - &pointer_end, &pointers_size, - local_buffer, &buffer_begin, - &buffer_end, &buffer_size)) - { + if (in_argument) { + if (!kwsysSystem__AppendArgument( + local_pointers, &pointer_begin, &pointer_end, &pointers_size, + local_buffer, &buffer_begin, &buffer_end, &buffer_size)) { failed = 1; - } } + } /* If we still have memory allocate space for the new command buffer. */ - if(!failed) - { + if (!failed) { kwsysSystem_ptrdiff_t n = pointer_end - pointer_begin; - newCommand = (char**)malloc((size_t)(n+1)*sizeof(char*)); - } + newCommand = (char**)malloc((size_t)(n + 1) * sizeof(char*)); + } - if(newCommand) - { + if (newCommand) { /* Copy the arguments into the new command buffer. */ kwsysSystem_ptrdiff_t n = pointer_end - pointer_begin; - memcpy(newCommand, pointer_begin, sizeof(char*)*(size_t)(n)); + memcpy(newCommand, pointer_begin, sizeof(char*) * (size_t)(n)); newCommand[n] = 0; - } - else - { + } else { /* Free arguments already allocated. */ - while(pointer_end != pointer_begin) - { + while (pointer_end != pointer_begin) { free(*(--pointer_end)); - } } + } /* Free temporary buffers. */ - if(pointer_begin != local_pointers) - { + if (pointer_begin != local_pointers) { free(pointer_begin); - } - if(buffer_begin != local_buffer) - { + } + if (buffer_begin != local_buffer) { free(buffer_begin); - } + } /* The flags argument is currently unused. */ (void)flags; @@ -291,10 +231,9 @@ static char** kwsysSystem__ParseUnixCommand(const char* command, int flags) char** kwsysSystem_Parse_CommandForUnix(const char* command, int flags) { /* Validate the flags. */ - if(flags != 0) - { + if (flags != 0) { return 0; - } + } /* Forward to our internal implementation. */ return kwsysSystem__ParseUnixCommand(command, flags); |