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Diffstat (limited to 'src/stdlib/SDL_getenv.c')
-rw-r--r--src/stdlib/SDL_getenv.c370
1 files changed, 188 insertions, 182 deletions
diff --git a/src/stdlib/SDL_getenv.c b/src/stdlib/SDL_getenv.c
index 74116cc9..c06af7fc 100644
--- a/src/stdlib/SDL_getenv.c
+++ b/src/stdlib/SDL_getenv.c
@@ -32,143 +32,148 @@
/* Note this isn't thread-safe! */
-static char *SDL_envmem = NULL; /* Ugh, memory leak */
+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)
+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;
+ 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)
+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;
+ 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;
+static char **SDL_env = (char **) 0;
/* Put a variable of the form "name=value" into the environment */
-int SDL_putenv(const char *variable)
+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);
+ 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)
+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;
+ 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__ */
@@ -178,70 +183,71 @@ char *SDL_getenv(const char *name)
#ifdef TEST_MAIN
#include <stdio.h>
-int main(int argc, char *argv[])
+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);
+ 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 */
-
+/* vi: set ts=4 sw=4 expandtab: */
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