src/stdlib/SDL_getenv.c
branchSDL-1.3
changeset 1662 782fd950bd46
parent 1472 4aac8563c296
child 1668 4da1ee79c9af
--- a/src/stdlib/SDL_getenv.c	Sun May 21 17:27:13 2006 +0000
+++ b/src/stdlib/SDL_getenv.c	Sun May 28 13:04:16 2006 +0000
@@ -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;
+    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;
+    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;
+    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;
+    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;
+    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);
-	}
+    /* 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);
-	}
+    /* 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;
-		}
-	}
+    /* 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);
+    /* 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;
+    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;
+    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 @@
 #ifdef TEST_MAIN
 #include <stdio.h>
 
-int main(int argc, char *argv[])
+int
+main (int argc, char *argv[])
 {
-	char *value;
+    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);
+    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: */