diff options
Diffstat (limited to 'distrib/sdl-1.2.12/src/stdlib/SDL_getenv.c')
| -rw-r--r-- | distrib/sdl-1.2.12/src/stdlib/SDL_getenv.c | 247 |
1 files changed, 0 insertions, 247 deletions
diff --git a/distrib/sdl-1.2.12/src/stdlib/SDL_getenv.c b/distrib/sdl-1.2.12/src/stdlib/SDL_getenv.c deleted file mode 100644 index d52707a..0000000 --- a/distrib/sdl-1.2.12/src/stdlib/SDL_getenv.c +++ /dev/null @@ -1,247 +0,0 @@ -/* - SDL - Simple DirectMedia Layer - Copyright (C) 1997-2006 Sam Lantinga - - This library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - This library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with this library; if not, write to the Free Software - Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - - Sam Lantinga - slouken@libsdl.org -*/ -#include "SDL_config.h" - -#include "SDL_stdinc.h" - -#ifndef HAVE_GETENV - -#if defined(__WIN32__) && !defined(_WIN32_WCE) && !defined(__SYMBIAN32__) - -#define WIN32_LEAN_AND_MEAN -#include <windows.h> - -/* Note this isn't thread-safe! */ - -static char *SDL_envmem = NULL; /* Ugh, memory leak */ -static size_t SDL_envmemlen = 0; - -/* Put a variable of the form "name=value" into the environment */ -int SDL_putenv(const char *variable) -{ - size_t bufferlen; - char *value; - const char *sep; - - sep = SDL_strchr(variable, '='); - if ( sep == NULL ) { - return -1; - } - bufferlen = SDL_strlen(variable)+1; - if ( bufferlen > SDL_envmemlen ) { - char *newmem = (char *)SDL_realloc(SDL_envmem, bufferlen); - if ( newmem == NULL ) { - return -1; - } - SDL_envmem = newmem; - SDL_envmemlen = bufferlen; - } - SDL_strlcpy(SDL_envmem, variable, bufferlen); - value = SDL_envmem + (sep - variable); - *value++ = '\0'; - if ( !SetEnvironmentVariable(SDL_envmem, *value ? value : NULL) ) { - return -1; - } - return 0; -} - -/* Retrieve a variable named "name" from the environment */ -char *SDL_getenv(const char *name) -{ - size_t bufferlen; - - bufferlen = GetEnvironmentVariable(name, SDL_envmem, (DWORD)SDL_envmemlen); - if ( bufferlen == 0 ) { - return NULL; - } - if ( bufferlen > SDL_envmemlen ) { - char *newmem = (char *)SDL_realloc(SDL_envmem, bufferlen); - if ( newmem == NULL ) { - return NULL; - } - SDL_envmem = newmem; - SDL_envmemlen = bufferlen; - GetEnvironmentVariable(name, SDL_envmem, (DWORD)SDL_envmemlen); - } - return SDL_envmem; -} - -#else /* roll our own */ - -static char **SDL_env = (char **)0; - -/* Put a variable of the form "name=value" into the environment */ -int SDL_putenv(const char *variable) -{ - const char *name, *value; - int added; - int len, i; - char **new_env; - char *new_variable; - - /* A little error checking */ - if ( ! variable ) { - return(-1); - } - name = variable; - for ( value=variable; *value && (*value != '='); ++value ) { - /* Keep looking for '=' */ ; - } - if ( *value ) { - ++value; - } else { - return(-1); - } - - /* Allocate memory for the variable */ - new_variable = SDL_strdup(variable); - if ( ! new_variable ) { - return(-1); - } - - /* Actually put it into the environment */ - added = 0; - i = 0; - if ( SDL_env ) { - /* Check to see if it's already there... */ - len = (value - name); - for ( ; SDL_env[i]; ++i ) { - if ( SDL_strncmp(SDL_env[i], name, len) == 0 ) { - break; - } - } - /* If we found it, just replace the entry */ - if ( SDL_env[i] ) { - SDL_free(SDL_env[i]); - SDL_env[i] = new_variable; - added = 1; - } - } - - /* Didn't find it in the environment, expand and add */ - if ( ! added ) { - new_env = SDL_realloc(SDL_env, (i+2)*sizeof(char *)); - if ( new_env ) { - SDL_env = new_env; - SDL_env[i++] = new_variable; - SDL_env[i++] = (char *)0; - added = 1; - } else { - SDL_free(new_variable); - } - } - return (added ? 0 : -1); -} - -/* Retrieve a variable named "name" from the environment */ -char *SDL_getenv(const char *name) -{ - int len, i; - char *value; - - value = (char *)0; - if ( SDL_env ) { - len = SDL_strlen(name); - for ( i=0; SDL_env[i] && !value; ++i ) { - if ( (SDL_strncmp(SDL_env[i], name, len) == 0) && - (SDL_env[i][len] == '=') ) { - value = &SDL_env[i][len+1]; - } - } - } - return value; -} - -#endif /* __WIN32__ */ - -#endif /* !HAVE_GETENV */ - -#ifdef TEST_MAIN -#include <stdio.h> - -int main(int argc, char *argv[]) -{ - char *value; - - printf("Checking for non-existent variable... "); - fflush(stdout); - if ( ! SDL_getenv("EXISTS") ) { - printf("okay\n"); - } else { - printf("failed\n"); - } - printf("Setting FIRST=VALUE1 in the environment... "); - fflush(stdout); - if ( SDL_putenv("FIRST=VALUE1") == 0 ) { - printf("okay\n"); - } else { - printf("failed\n"); - } - printf("Getting FIRST from the environment... "); - fflush(stdout); - value = SDL_getenv("FIRST"); - if ( value && (SDL_strcmp(value, "VALUE1") == 0) ) { - printf("okay\n"); - } else { - printf("failed\n"); - } - printf("Setting SECOND=VALUE2 in the environment... "); - fflush(stdout); - if ( SDL_putenv("SECOND=VALUE2") == 0 ) { - printf("okay\n"); - } else { - printf("failed\n"); - } - printf("Getting SECOND from the environment... "); - fflush(stdout); - value = SDL_getenv("SECOND"); - if ( value && (SDL_strcmp(value, "VALUE2") == 0) ) { - printf("okay\n"); - } else { - printf("failed\n"); - } - printf("Setting FIRST=NOVALUE in the environment... "); - fflush(stdout); - if ( SDL_putenv("FIRST=NOVALUE") == 0 ) { - printf("okay\n"); - } else { - printf("failed\n"); - } - printf("Getting FIRST from the environment... "); - fflush(stdout); - value = SDL_getenv("FIRST"); - if ( value && (SDL_strcmp(value, "NOVALUE") == 0) ) { - printf("okay\n"); - } else { - printf("failed\n"); - } - printf("Checking for non-existent variable... "); - fflush(stdout); - if ( ! SDL_getenv("EXISTS") ) { - printf("okay\n"); - } else { - printf("failed\n"); - } - return(0); -} -#endif /* TEST_MAIN */ - |